prEN 16333

Slurry surfacing - Specification for airfields

This document describes the performance requirements and control procedures for the
installation of slurry surfacing on airfields as a product for the surface treatment of areas
trafficked by Aircraft (e.g. runways on „low” trafficked airfields, aprons and taxiways).
NOTE The installation of slurry surfacing on airfields requires experience and skills
from both the Client and the Contractor. The suitability of the product for a particular
airfield application and the capability of the contractor have to be considered carefully in
every case.
This document does not apply to small areas of slurry surfacing that are less than 500 m2
which are not contiguous (for example minor repairs).
* 6 Deliverable EN TS

Dünne Asphaltschichten in Kaltbauweise - Anforderungen an Flugplätze

Dieses Dokument beschreibt die Leistungsanforderungen und Prüfverfahren für den Einbau dünner Asphaltschichten in Kaltbauweise auf Flugplätzen als Produkt für die Oberflächenbehandlung der von Luftfahrzeugen befahrenen Flächen (z. B. Start  und Landebahnen von Flugplätzen mit „geringem“ Verkehrsaufkommen, Vorfelder und Rollbahnen).
ANMERKUNG   Der Einbau dünner Asphaltschichten in Kaltbauweise auf Flugplätzen erfordert sowohl vom Auftraggeber als auch vom Auftragnehmer Erfahrung und besondere Qualifikationen. Die Eignung des Produkts für eine bestimmte Anwendung auf Flugplätzen und die Qualifikation des Auftragnehmers müssen in jedem Einzelfall sorgfältig abgewägt werden.
Dieses Dokument gilt nicht für dünne Asphaltschichten in Kaltbauweise mit einer Fläche von weniger als 500 m2, die nicht aneinandergrenzen (zum Beispiel kleinere Instandhaltungsarbeiten).
Dieses Dokument enthält:
-   Anhang A (normativ): Werkseigene Produktionskontrolle;
-   Anhang B (normativ): Mindestprüfhäufigkeiten der werkseigenen Produktionskontrolle;
-   Anhang C (normativ): Probestrecke für den Leistungsfähigkeitsnachweis;
-   Anhang D (normativ): Optimierte Mischgutzusammensetzung;
-   Anhang E (normativ): Verfahren für die Prüfung der Scherhaftfestigkeit dünner Asphaltsschichten in Kaltbauweise.

Matériaux bitumineux coulés à froid - Spécifications relatives aux aérodromes

Le présent document décrit les exigences de performance ainsi que les procédures de contrôle relatives à la mise en œuvre des matériaux bitumineux coulés à froid sur les aérodromes, produits destinés au traitement de surface des zones de circulation des avions (pistes d'aérodromes à faible trafic, aires de stationnement et voies de circulation, par exemple).
NOTE   La mise en œuvre des matériaux bitumineux coulés à froid sur les aérodromes nécessite de l'expérience et des compétences de la part du client et de l’applicateur. L'aptitude du produit à une application particulière sur un aérodrome et les capacités de l’applicateur doivent être soigneusement examinées dans chaque cas.
Ce document ne s'applique pas aux matériaux bitumineux coulés à froid sur de petites surfaces inférieures à 500 m2 et non contiguës (réparations mineures, par exemple).
Le présent document contient les annexes suivantes :
-   Annexe A (normative) : Maîtrise de la production ;
-   Annexe B (informative) : Fréquences d'essai minimales pour la maîtrise de production (FPC) ;
-   Annexe C (normative) : Planche test pour essais de type initiaux (TAIT) ;
-   Annexe D (normative) : Formulation du mélange ;
-   Annexe E (normative) : Méthode d'essai de résistance au cisaillement.

Tankoplastne prevleke po hladnem postopku - Specifikacije za letališča

General Information

• Status: Not Published
• Publication Date: 21-Jan-2014
• ICS: 93.080.20 - Road construction materials
• ICS: 93.120 - Construction of airports
• Technical Committee: CEN/TC 227 - Road materials
• Drafting Committee: CEN/TC 227/WG 2 - Surface dressing and slurry surfacing
• Current Stage: 3098 - Decision to reject - Consensus building
• Start Date: 19-Jun-2015
• Completion Date: 14-Apr-2025
• Directive: 1999/29/EC - Council Directive 1999/29/EC of 22 April 1999 on the undesirable substances and products in animal nutrition
• Directive: 305/2011 - Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
• Directive: 89/106/EEC - Construction products
• Mandate: M/124 - Mandate to CEN/CENELEC concerning the execution of standardization work for harmonized standards on road construction products
• Ref Project: oSIST prEN 16333:2011 - Slurry surfacing - Specification for airfields

Overview

prEN 16333 is a European standard developed by CEN that specifies the performance requirements and control procedures for slurry surfacing installation on airfields. This specification targets surface treatments suitable for areas trafficked by aircraft, including runways at low-traffic airfields, aprons, and taxiways. The standard highlights the importance of experience and expertise from both clients and contractors to ensure the suitability and successful application of slurry surfacing products. It does not cover small patches under 500 m², such as minor repair areas.

The document provides comprehensive guidelines for material selection, construction practices, durability assessment, and conformity evaluation to ensure reliable and safe slurry surfacing installations on airfield pavements.

Key Topics

• Material Specifications: Defines constituent materials such as binders, aggregates, and fillers, including tests like methylene blue to assess suitable properties.
• Product Performance: Outlines essential performance criteria including visual defect assessment, skid resistance, macrotexture, wear resistance, mix consistency, cohesion, and shear bond strength.
• Construction Requirements: Covers existing surface preparation, weather considerations, application rate, tack coat use, compaction techniques, and the role of construction trials.
• Durability and Conformity: Establishes protocols for evaluating slurry surfacing longevity and mandates factory production control (FPC) systems to monitor quality. Includes procedures for type approval installation trials (TAIT) and mix design considerations.
• Testing Methods: Specifies detailed testing methods relevant to slurry surfacing such as shear bond strength tests, consistency, cohesion, and wearing tests to ensure compliance with the standard.

Applications

prEN 16333 is tailored for the application of slurry surfacing as a surface treatment in airfield environments where aircraft traffic is present but generally at lower intensity. Typical application areas include:

• Runways on low-traffic airfields: Provides a durable, slip-resistant surface restoring and protecting runways where heavy or frequent aircraft operations are limited.
• Aprons and taxiways: Enhances surface integrity and skid resistance on aircraft holding and maneuvering areas.
• Surface rehabilitation: Slurry surfacing offers cost-effective maintenance and renewal of airfield pavements, extending service life while minimizing operational disruptions.

The standard is highly relevant for:

• Airport operators and facility managers seeking standardized criteria and control mechanisms for slurry surface applications.
• Construction contractors and material suppliers who must comply with strict performance requirements and quality control during installation.
• Regulatory and certification bodies involved in approving airfield pavement materials and construction methods.

Related Standards

prEN 16333 complements and references several related European standards that establish testing methods and material requirements crucial for slurry surfacing on airfields:

• EN 58: Sampling of bitumen and bituminous binders.
• EN 933 series: Tests for geometrical properties of aggregates.
• EN 1097 series: Tests for mechanical and physical properties of aggregates covering wear, fragmentation, water content, and polished stone value.
• EN 12273:2008: General slurry surfacing requirements.
• EN 13043: Aggregates for bituminous mixtures and surface treatments specifically for airfields.
• EN 13036-1: Measurement of pavement surface macrotexture depth.
• EN 12697 series: Test methods for bituminous mixtures concerning permeability, de-icing resistance, and fuel resistance.

These related standards ensure that slurry surfacing materials comply with rigorous industry-wide testing protocols, guaranteeing reliable performance in airfield applications.

---

By adhering to prEN 16333, stakeholders involved in the maintenance and construction of airfield pavements can achieve enhanced surface performance, safety, and durability. The standard fosters consistent quality of slurry surfacing products and installations while supporting operational requirements in aviation environments.

Standards Content (Sample)

SLOVENSKI STANDARD
01-december-2011
7DQNRSODVWQHSUHYOHNHSRKODGQHPSRVWRSNX6SHFLILNDFLMH]DOHWDOLãþD
Slurry surfacing - Specification for airfields
Dünne Asphaltschichten in Kaltbauweise - Anforderungen an Flugplätze
Matériaux bitumineux coulés à froid - Spécifications relatives aux aérodromes
Ta slovenski standard je istoveten z: prEN 16333
ICS:
93.080.20 Materiali za gradnjo cest Road construction materials
93.120 *UDGQMDOHWDOLãþ Construction of airports
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
DRAFT
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2011
ICS 93.080.20; 93.120
English Version
Slurry surfacing - Specification for airfields
Matériaux bitumineux coulés à froid - Spécifications Dünne Asphaltschichten in Kaltbauweise - Anforderungen
relatives aux aérodromes an Flugplätze
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 227.

If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations which
stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other language
made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2011 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 16333:2011: E
worldwide for CEN national Members.

Contents
Page
Foreword .4
1 Scope .5
2 Normative references .5
3 Terms and definitions .7
4 Symbols .8
5 Requirements .9
5.1 Constituent materials .9
5.1.1 Binders .9
5.1.2 Aggregates and filler .9
5.1.3 Methylene blue . 10
5.2 Product performance . 10
5.2.1 Defects as determined by visual assessment . 10
5.2.2 Skid resistance . 10
5.2.3 Macrotexture . 10
5.2.4 Resistance to wearing . 10
5.2.5 Consistency . 10
5.2.6 Cohesion of the mix. 11
5.2.7 Shear bond strength . 11
5.2.8 Over-specification. 11
5.3 Construction requirements . 11
5.3.1 Existing surface integrity . 11
5.3.2 Weather . 11
5.3.3 Preparation of existing surface . 11
5.3.4 Construction Trial . 11
5.3.5 Tack coat or bond coat . 12
5.3.6 Rate of application . 12
5.3.7 Compaction . 12
5.4 Durability . 14
6 Evaluation of Conformity . 14
Annex A (normative) Factory Production Control (FPC) . 15
A.1 General . 15
A.2 General requirements . 15
A.3 Product specific requirements . 16
A.3.1 Records . 16
A.3.2 FPC system . 16
A.3.3 Responsibility and authority . 17
A.3.4 Design process . 17
A.3.5 Process control . 17
A.3.6 Control of equipment and monitoring and measuring devices . 18
A.3.7 Monitoring and measurement of product . 18
A.3.8 Non-conforming products . 19
A.3.9 Corrective and remedial action . 19
Annex B (normative) Minimum test frequencies for Factory Production Control (FPC) . 20
Annex C (normative) Type Approval Installation Trial (TAIT) . 25
C.1 General . 25
C.2 Requirements . 25
C.3 Records . 25
C.4 Information availability . 26
Annex D (normative) Mix Design . 27
Page
D.1 General .27
D.2 Further information . 27
D.2.1 Mix time . 27
D.2.2 Consistency test . 27
D.2.3 Cohesion test . 27
D.2.4 Wearing. 28
Annex E (normative) Shear bond strength test method for slurry surfacing . 29
E.1 Principle. 29
E.2 Apparatus . 29
E.3 Materials . 29
E.4 Site . 30
E.5 Test Method . 30
E.5.1 In situ test method . 30
E.5.2 Laboratory test method . 30
E.5.3 Conditioning protocol for new (‘unaged’) material . 32
E.5.4 Calculation of bond and shear strength and expression of results . 32
E.6 Shear bond strength test method report . 33
E.7 Precision. 34
E.8 Photographs . 34
Annex ZA (informative) Clauses of this European Standard addressing the provisions of the
EU Construction Product directive . 35
ZA.1 Scope and relevant characteristics . 35
ZA.2 Procedure for attestation of conformity of slurry surfacing . 37
ZA.2.1 System of attestation of conformity . 37
ZA.2.2 EC Certificate and Declaration of conformity . 38
ZA.3 CE marking and labelling. 38

Foreword
This document (prEN 16333:2011) has been prepared by Technical Committee CEN/TC 227 “Road
materials”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive(s).
For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document.
1 Scope
This document describes the performance requirements and control procedures for the installation of slurry
surfacing on airfields as a product for the surface treatment of areas trafficked by Aircraft (e.g. runways on
„low” trafficked airfields, aprons and taxiways).
NOTE The installation of slurry surfacing on airfields requires experience and skills from both the Client and the
Contractor. The suitability of the product for a particular airfield application and the capability of the contractor have to be
considered carefully in every case.
This document does not apply to small areas of slurry surfacing that are less than 500 m which are not
contiguous (for example minor repairs).
This document contains
 Annex A (normative) Factory Production Control,
 Annex B (informative) Minimum Test Frequencies for FPC,
 Annex C (normative) Type Approval Installation Trial (TAIT),
 Annex D (normative) Mix Design,
 Annex E (normative) Shear Bond Strength Test Method.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
EN 58, Bitumen and bituminous binders — Sampling bitumen binders
EN 932-1, Tests for general properties of aggregates — Part 1: Methods for sampling
EN 933-1, Tests for geometrical properties of aggregates — Part 1: Determination of particle size
distribution — Sieving method
EN 933-3, Tests for geometrical properties of aggregates — Part 3: Determination of particle shape —
Flakiness index
EN 933-5, Tests for geometrical properties of aggregates — Part 5: Determination of percentage of crushed
and broken surfaces in coarse aggregate particles
EN 933-6, Tests for geometrical properties of aggregates — Part 6: Assessment of surface characteristics —
Flow coefficient of aggregates
EN 933-9, Tests for geometrical properties of aggregates — Part 9: Assessment of fines — Methylene blue
test
EN 1097-1, Tests for mechanical and physical properties of aggregates — Part 1: Determination of the
resistance to wear (micro-Deval)
EN 1097-2, Tests for mechanical and physical properties of aggregates — Part 2: Methods for the
determination of resistance to fragmentation
EN 1097-5, Tests for mechanical and physical properties of aggregates — Part 5: Determination of the water
content by drying in a ventilated oven
EN 1097-8, Tests for mechanical and physical properties of aggregates — Part 8: Determination of the
polished stone value
EN 1367–1:1999, Tests for thermal and weathering properties of aggregates — Part 1: Determination of
resistance to freezing and thawing
EN 1428, Bitumen and bituminous binders — Determination of water content in bitumen emulsions —
Azeotropic distillation method
EN 1429, Bitumen and bituminous binders — Determination of residue on sieving of bitumen emulsions, and
determination of storage stability by sieving
EN 12273:2008, Slurry Surfacing — Requirements
EN 12274-1, Slurry Surfacing Test Methods — Part 1: Sampling for binder extraction
EN 12274-2, Slurry Surfacing Test Methods — Part 2: Determination of residual binder content
EN 12274-3, Slurry Surfacing Test Methods — Part 3: Consistency
EN 12274-4, Slurry Surfacing Test Methods — Part 4: Determination of the cohesion of the mix
EN 12274-5, Slurry Surfacing Test Methods — Part 5: Determination of wearing
EN 12274-6, Slurry Surfacing Test Methods — Part 6: Rate of application
EN 12274-7, Slurry Surfacing Test Methods — Part 7: Shaking abrasion test
EN 12274-8, Slurry Surfacing Test Methods — Part 8: Visual Assessment of Defects
EN 12697-38, Bituminous mixtures — Test methods for hot mix asphalt — Part 38: Test equipment and
calibration
EN 12697-19, Bituminous mixtures — Test methods for hot mix asphalt — Part 19: Permeability of specimen
EN 12697-41, Bituminous mixtures — Test methods for hot mix asphalt — Part 41: Resistance to de-icing
fluids
EN 12697-43, Bituminous mixtures — Test methods for hot mix asphalt — Part 43: Resistance to fuel
EN 12846, Bitumen and bituminous binders — Determination of efflux time of bitumen emulsions by the efflux
viscometer
EN 12847, Bitumen and bituminous binders — Determination of settling tendency of bitumen emulsions
EN 13036-1, Road and airfield surface characteristics — Test methods — Part 1: Measurement of pavement
surface macrotexture depth using a volumetric technique
EN 13043, Aggregates for bituminous mixtures and surface treatments for airfields, airfields and other
trafficked areas
EN 13074, Bitumen and bituminous binders — Recovery of binder from bitumen emulsions by evaporation
EN 13075-1, Bitumen and bituminous binders — Determination of breaking behaviour — Part 1:
Determination of breaking value of cationic bitumen emulsions, mineral filler method
EN 13075-2, Bitumen and bituminous binders — Determination of breaking behaviour — Part 2:
Determination of fines mixing time of cationic bitumen emulsions
EN 13588, Bitumen and bituminous binders — Determination of cohesion of bituminous binders
EN 13808, Bitumen and bituminous binders — Framework for specifying cationic bituminous emulsions
EN 14769, Bitumen and bituminous binders — Accelerated long-term ageing — Pressure Ageing Vessel
(PAV)
EN 14895, Bitumen and bituminous binders — Stabilisation of binder from bituminous emulsions or cut-back
and fluxed bitumens
EN ISO 9001, Quality management systems — Requirements
EN ISO 13473-1, Characterization of pavement texture by use of surface profiles — Part 1: Determination of
mean profile depth
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
slurry surfacing (slurry seal) on airfields
surface treatment consisting of a mixture of aggregates, water, bituminous emulsion and additives which is
mixed by machine and laid in-place. Slurry surfacing on airfields consists of one or more layers and a tack
coat or bond coat
NOTE 1 Slurry surfacing formerly included and was known as „slurry seal” and incorporates microsurfacing, a polymer
modified slurry surfacing
NOTE 2 For small areas the material may be pre-mixed and transported to site, for example for repairs
3.2
binder
as a component of slurry surfacing is a bitumen emulsion which may be modified with polymers or other
additives
3.3
Factory Production Control (FPC)
permanent internal control of production exercised by the producer when all the elements, requirements and
provisions adopted by the producer are documented in a systematic manner in the form of written policies and
procedures. This production control system documentation shall ensure a common understanding of quality
assurance and enable the achievement of the required product characteristics and the effective operation of
the production control system to be checked
3.4
mix design
recipe and method statement to achieve the performance requirements specified
3.5
perceptible properties check
an evaluation made with the senses: sight, touch, smell, hearing, etc. It is a broader concept than the more
commonly used term ‘visual inspection’
NOTE 1 For example, a check on an emulsion delivery might involve visual (colour, consistency and homogeneity),
smell (odour) and touch (estimate of viscosity by stirring and tackiness after curing). This would determine whether the
binder conformed to the expectations of the tester and would be the quickest way to detect a defective load. Similar
principles apply to aggregates, particularly with stockpile inspection where handling soon reveals cleanliness, grading or
flakiness problems.
NOTE 2 In all cases perceptible property checks should extend only as far as health and safety regulations permit.
3.6
Type Approval Installation Trial (TAIT)
consists of a defined section where slurry surfacing has been installed using Factory Production Control (FPC)
and which has been submitted to performance tests after a period of one year, unless otherwise specified by
the client. Detailed information is recorded to clearly identify the product, its performance and the intended
uses. The producer carries out one Type Approval Installation Trial (TAIT) to cover each product family he
wishes to place on the market. The TAIT is synonymous with Initial Type Test (ITT) which demonstrates that
the characteristics of the slurry surfacing or microsurfacing comply with the requirements of the technical
specification
3.7
Construction Trial
safety critical nature of airfield pavement engineering will normally necessitate a construction trial of slurry
surfacing being laid on a suitable non-aircraft trafficked pavement (ie a pavement with a surface in similar
condition to the aircraft pavement which is to receive slurry surfacing) immediately prior to commencement of
slurry surfacing works on an airfield. The purpose of this is to demonstrate the suitability of the proposed slurry
surfacing mix and laying method in order to manage the FOD risk
3.8
durability
ability of a product to maintain its required performance, under the influence of foreseeable actions, for a
reasonable economic working life
3.9
Shear Bond Strength (SBS)
measure of the bond at the interface with the substrate and the shear strength within the slurry surfacing
material in accordance with the test method in Annex E
3.10
tack coat
bitumen emulsion used to prime the substrate prior to application of slurry surfacing
3.11
bond coat
polymer modified bituminous emulsion, having a cohesive quality, used to promote adhesion between the
slurry surfacing and substrate
4 Symbols
S is the area of 100 m long slurry surfacing and microsurfacing section, in square metres (m );
P the proportion of area of bleeding, fatting up and tracking in the 100 m section being considered
expressed as a percentage of the area of the section;
P the proportion of area of delamination, loss of aggregate, wearing, lane joint gaps, rutting and slippage
in the 100 m section being considered expressed as a percentage of the area of the section;
P the proportion of area of corrugation and bumps in the 100 m section being considered expressed as
a percentage of the area of the section;
P the proportion of area of the rectangle or rectangles containing small repetitive defects in the 100 m
section being considered expressed as a percentage of the area of the section;
L the total length of longitudinal grooves in the 100 m section, in metres (m);
5 Requirements
5.1 Constituent materials
Only constituent materials with established suitability shall be used.
The establishment of suitability shall result from one or more of the following:
 European Standard;
 European Technical Approval;
 Specifications for materials based on a demonstrable history of satisfactory use in slurry surfacing or
microsurfacing. Evidence shall be provided on their suitability. This evidence may be based on research
combined with evidence from practice.
5.1.1 Binders
The binder for slurry surfacing shall be a bituminous emulsion, which may be modified with polymer in
accordance with EN 13808.
When additives are used, these must be declared by the producer.
The cohesion of the bituminous binder, when tested in accordance with EN 13588, shall comply with the
classes specified in EN 13808.
For special purposes other binders may be used, for example, binders resistant to fuel spillage or de-icing
chemicals.
5.1.2 Aggregates and filler
Aggregates and filler in accordance with EN 13043.
The levels and classes for aggregate properties shall be chosen from the appropriate properties and
categories in EN 13043.
5.1.2.1 Grading
The grading of the aggregate size shall be determined in accordance with EN 933-1.
100 % of the aggregate shall pass a 4 mm sieve.
The grading curve (aggregate, filler and cement) may be specified in accordance with sieve sizes 4 mm,
2 mm, 1 mm, 0,125 mm and 0,063 mm.
5.1.2.2 Percentage of crushed and broken surfaces
The percentage of crushed and broken surfaces shall be 100 %, indicated in EN 13043 as C .
100/0
5.1.2.3 Resistance to fragmentation
The category of resistance to impact shall be LA or LA .
20 15
5.1.2.4 Resistance to polishing of aggregate
A PSV is required.
NOTE In some countries a higher value may be required.
5.1.2.5 Resistance to wear
The Micro-Deval shall be determined in according with EN 1097-1.
5.1.2.6 Resistance to freezing and thawing
When required, the resistance to freezing and thawing shall be determined in according with EN 1367-1:1999,
Annex B (using salt saturation). The tests shall be done also with a 10 % solution of the chemicals used for
de-icing airfield pavement and for de-icing of aircraft.
The Magnesium Sulphate Soundness value may be specified.
5.1.3 Methylene blue
The methylene blue shall be determined in accordance with EN 933-9. The category shall be chosen from
levels in EN 13043.
5.2 Product performance
5.2.1 Defects as determined by visual assessment
The visual assessment of defects according to EN 12274-8 is used for the essential characteristics of
adhesion of binder to aggregate, resistance to flow/deformation, hardening or setting ability, resistance to
abrasion and bond to substrate and their durability. Airfield requirements are listed in Table 1. The TAIT at
12 months shall in accordance with Category 1 and the Construction Trial with Category 2.
NOTE Figures in EN 12274-8 may be used as a guidance to illustrate different defects.
5.2.2 Skid resistance
When required, the test equipment and minimum values shall be specified according to ICAO (International
Civil Aviation Organisation) Annex 14 or national regulations.
5.2.3 Macrotexture
When required, the texture depth of the macrotexture shall be assessed in accordance with EN 13036-1.
Other test methods may be used (for example laser texture meters — see EN ISO 13473-1) provided that
they are correlated with the patch test as the reference test.
5.2.4 Resistance to wearing
When required, the resistance to wearing shall be determined in accordance with EN 12274-5. The massloss
of slurry surfacing allowed is ≤ 500 g/m .
5.2.5 Consistency
When required, the consistency of slurry surfacing shall be determined in accordance with EN 12274-3. The
requirement is 20 mm to 30 mm.
5.2.6 Cohesion of the mix
When required, the cohesion of the slurry surfacing or microsurfacing mix shall be determined in accordance
with EN 12274-4. Quick-set quick-traffic systems require 12 kg/cm after 30 min and 20 kg/cm after 60 min.
5.2.7 Shear bond strength
This test method shall be carried out in accordance with Annex E. The minimum value shall be selected from
the categories in Table 1. This includes a minimum in situ value which may be specified to permit early
trafficking.
5.2.8 Over-specification
To prevent the over-specification of slurry surfacing and microsurfacing the following combinations of
requirements are not permissible.
Requirements for consistency and cohesion of the mix shall not be combined with requirements for minimum
shear bond strength.
5.3 Construction requirements
5.3.1 Existing surface integrity
The suitability of slurry surfacing as a maintenance treatment for an asphalt surface will normally be
dependent on the existing pavement having good structural integrity and the surface not exhibiting extensive
distresses other than low to medium weathering. The suitability of slurry surfacing shall be judged on a case
by case basis with guidance of pavement inspections by suitably experienced engineers and maintenance
staff, preferably within the framework of a pavement management system, which considers the use and
condition of the surface.
5.3.2 Weather
Slurry surfacing shall not be applied if either the pavement or air temperature is below 10 °C and falling, but
may be applied when both pavement and air temperatures are above 7 °C and rising.
Placing of the slurry surfacing shall not take place during rainfall or when rain is imminent.
5.3.3 Preparation of existing surface
Markings and rubber deposits shall be removed.
In order to obtain sufficient adhesion between the existing surface and the slurry surfacing, the existing
surface shall be swept and if so required also high pressure water flushed. No loose contamination is allowed.
Manhole covers, airfield lights, joints and other objects in the area to be to be treated with slurry surfacing or
microsurfacing shall be properly covered.
5.3.4 Construction Trial
For safety reasons as described in 3.7 a Construction Trial will normally be required immediately prior to
commencement of slurry surfacing work on an airfield. The construction trial shall demonstrate that the slurry
surfacing fulfils the requirements before work can commence on an airfield pavement. The construction trial
should be made at the airfield at which the slurry surfacing is to be carried out, it should be based on an
approved mix design and should be laid on an asphalt surface on a non-aircraft trafficked pavement in similar
condition to the aircraft pavement which is to receive slurry surfacing. The construction trial shall consist of
two adjacent lanes minimum 100 m long unless otherwise specified. The construction trial shall be visibly
inspected after the curing of the slurry surfacing has occurred. If the slurry surfacing is to be placed on
runways the wet friction shall be measured (see 5.2.2). If the construction trial does not fulfil the requirements
a new construction trial has to be laid.
5.3.5 Tack coat or bond coat
The existing surface shall have a tack coat or bond coat applied unless otherwise specified. The tack coat
shall be bitumen emulsion complying with EN 13808 or cut-back bitumen to EN 15322 as specified. The
amount of tack coat may be specified. Bond coat shall be applied as detailed in the TAIT.
5.3.6 Rate of application
2 2
The rate of application for slurry surfacing for a single layer should be 3 kg/m to 6 kg/m .
5.3.7 Compaction
Compaction shall be performed. All points on the surface of the newly laid slurry surfacing shall receive at
least 3 passes of a roller. The type of roller may be specified.
Table 1 — Performance categories
NOTE The Construction Trial is used to check the equipment and design for the particular substrate and local
conditions.
Characteristics
Technical requirement Reference Unit
Visual assessment of defects  Category 1 Category 2
P — Bleeding, fatting up and tracking
EN 12274-8 % ≤ 0,2 0
P — Delamination, loss of aggregate,
EN 12274-8 % 0 0
wearing, lane joint gaps, rutting or
slippage
P — Corrugation, bumps and ridges
EN 12274-8 % ≤ 0,2 ≤ 0,05
P — groups of small and repetitive
EN 12274-8 % ≤ 0,1 ≤ 0,05
defects in not more than rectangles (n)
L — longitudinal grooves —
EN 12274-8 M < 1 0
(score marks)
Surface characteristics Category 0 Category 1 Category 2
Macrotexture EN 13036-1 mm NPD ≥ 0,6 ≥ 1,0
ICAO, National
Skid resistance ICAO  NPD
Annex 14 Requirements
Constituent Materials
Binder cohesion by pendulum test —
EN 13808 Choose from levels in EN 13808
J/cm
bituminous emulsion
PSV or higher if required
Aggregate — polished stone value EN 13043
Aggregate — resistance to wear by
EN 13043 Choose from the levels in EN 13043
Micro Deval
Category 0 Category 1 Category 2
Aggregate — Resistance to
EN 13043
No
Fragmentation LA LA
15 20
Requirement
Aggregate — Resistance to Freezing
EN13043 Category 0 Category 1
and Thawing
Freeze Thaw  No Requirement F1
Magnesium Sulfate Value (each
MS
No Requirement
aggregate source)
Magnesium Sulfate Value (each
MS
No Requirement
aggregate fraction)
Methylene Blue factor (MB )
EN 13043 Choose from the levels in EN 13043
F
Resistance to Wearing
EN 12274-5 Category 0 Category 1
No Requirement
<500g/m
Strength characteristics
Shear Bond Strength (SBS)  Category 0 Category 1
Initial in situ, corrected to 20 °C Annex E KPa No Requirement ≥ 200
Laboratory 35 °C aged samples Annex E KPa No Requirement ≥ 400
Retained SBS: Ratio of value after
ageing and moisture conditioning to Annex E KPa No Requirement ≥ 0,8
result for aged sample at 35 °C

5.4 Durability
Slurry surfacing prepared in accordance with this document is deemed to be durable for a reasonable
economic working life.
6 Evaluation of Conformity
Evaluation of conformity shall be demonstrated by:
 Factory Production Control (FPC) in accordance with Annex A;
 Initial Type Testing (ITT) — TAIT in accordance with Annex C;
 Mix Design in accordance with Annex D;
 Shear Bond Strength Test in accordance with Annex E.

Annex A
(normative)
Factory Production Control (FPC)
A.1 General
The producer shall establish, document and maintain a Factory Production Control (FPC) system to ensure
that the slurry surfacing placed on the market conforms with the stated performance characteristics. The FPC
system shall consist of procedures, regular inspections and tests and/or assessments and the use of the
results to control incoming materials, equipment, the production process and the product. Alternative tests to
those referred to in this document may be used for Factory Production Control.
Where the producer purchases constituent materials or has the slurry surfacing designed, or parts of the
production or testing carried out by subcontracting, the FPC of the supplier or sub-contractor may be taken
into account. However, where this occurs, the producer shall retain the overall control of the slurry surfacing
and microsurfacing and ensure that he receives all the information that is necessary to fulfil the requirements
according to this European Standard. The producer who subcontracts all of his activities may in no
circumstances discharge himself of his responsibilities to a subcontractor.
All the elements, requirements and provisions adopted by the producer shall be documented in a systematic
manner in the form of written policies and procedures. This production control system documentation shall
ensure a common understanding of conformity evaluation and enable the achievement of the required
component characteristics and the effective operation of the production control system to be checked.
Factory Production Control therefore brings together operational techniques and all measures allowing
maintenance and control of the conformity of the slurry surfacing with its technical requirements. Its
implementation may be achieved by controls and tests on measuring equipment, constituents, processes,
machines and manufacturing equipment and finished components, including material properties of
components, and by making use of the results thus obtained.
A producer who has a Factory Production Control which complies with ISO 9001 and made specific to this
Standard shall be deemed to satisfy the requirements of this Annex.
A.2 General requirements
The FPC system shall at least fulfil the requirements as described in EN ISO 9001, Table A.1, where
applicable.
Table A.1 — Clauses of EN ISO 9001:2000 to be addressed in the FPC
Clause number in this
EN ISO 9001 document for additional
Subject
clause requirements or
information
4.2 (except 4.2.1a) Documentation required and control of documents A.3.1
5.1 e) Management to ensure availability of resources A.3.2
5.5.1 Responsibility and authority A.3.3
Management representative to ensure quality
5.5.2
system is maintained
Resource management for FPC system including
6 provision, human resources, infrastructure and
work environment
7.1 except 7.1a) Planning of product realization
7.2.3c) Customer feedback
7.3 Design and development A.3.4
7.4 Purchasing (process, information and verification)
7.5 Production and service provision A.3.5
7.6 Control of monitoring and measuring devices A.3.6
8.2.3 and 8.2.4 Monitoring of processes and product A.3.7
8.3 Control of non-conforming product A.3.8
8.5.2 Corrective action
NOTE The FPC system may be part of a Quality Management system, e.g. in accordance with EN ISO 9001.
A.3 Product specific requirements
The requirements set out in this clause provide product specific details.
A.3.1 Records
Records shall be stored and maintained in such a way they are retrievable and maintained for a minimum
period of 5 years from the date of production.
A.3.2 FPC system
The FPC system shall
 ensure consistency with the requirements of this document;
 ensure that the slurry surfacing placed on the market conforms with the stated performance
characteristics;
 comply with EN ISO 9001, listed in Table A.1.
A.3.3 Responsibility and authority
The responsibility and authority of personnel shall be defined for personnel who have authority to
 modify the design locally to adjust for to airfield and environmental conditions;
 determine that the slurry surfacing complies with the requirements of this document.
NOTE An individual may exercise such supervision over a number of sites.
A.3.4 Design process
The design procedure used shall be documented.
Reference to a standard procedure, if used, shall be sufficient.
A.3.5 Process control
The producer shall produce a method statement for each site or group of sites for the production of the slurry
surfacing. The producer’s management shall have a working knowledge of and access to all relevant
documentation including the contract and relevant European Standards.
Before site work commences the producer shall ensure that the following are documented and issued to the
appropriate production personnel:
 The design of slurry surfacing for the site;
 any special instructions to the site staff relating to the programme of work;
 the equipment required for the work and the method of working to meet the design proposal and the
requirements of the contract;
 any additional instructions including application requirements.
The performance of slurry surfacing greatly depends upon the application. The following actions are
necessary to achieve the performance requirements of this document:
 Cleanliness of substrate;
 preparatory work based on weather conditions;
 materials purchased conformity to the specification requirements;
 materials identification;
 operation of application equipment;
 the use of competent personnel for the production of the slurry surfacing
 a system for handling and taking account of any changes ordered by an authorized body;
 record of the airfield surface condition prior to production of the slurry surfacing and any local variations to
the design proposal;
 procedure and time scale for notifying the purchaser of any problems which may affect the work (issues
which may require deviation from the original specification);
 activities to maintain the product until the work is handed to the purchaser.
Records should be kept of the operation on site that could affect the performance of the slurry surfacing and
microsurfacing covering the period shortly before operations commence until the opening of the site to
unrestricted normal traffic. These records should contain the following:
 Variations from the original design proposal including those necessitated by site conditions;
 unforeseen problems (weather conditions, emergency vehicle damage, etc.);
 weather information;
 any other information considered relevant to the performance of the product;
 traffic control measures;
 notes on perceptible properties checks;
 complaints from the public.
A.3.6 Control of equipment and monitoring and measuring devices
Procedures shall be documented for ensuring that test, monitoring and measuring equipment continues to
function within the tolerances stated in the producer’s documented procedures.
All equipment used in the manufacturing process shall be regularly inspected and maintained to ensure use,
wear or failure does not cause inconsistency in the manufacturing process.
NOTE 1 Rapid checks on the functionality of test equipment may be used; e.g. checking a balance with a standard
mass.
NOTE 2 Useful information on calibration and accuracy of test equipment can be found in EN 12697-38.
A.3.7 Monitoring and measurement of product
The producer shall establish procedures to ensure that the production tolerances
...