FprEN 15732

Lightweight fill and thermal insulation products for civil engineering applications (CEA) - Expanded clay lightweight aggregate products (LWA)

This document specifies the assessment of characteristics for loose-fill expanded clay lightweight aggregate products (hereafter as: expanded clay LWA) intended to be used for application in civil engineering works.
This document covers the use of expanded clay LWA as:
-   lightweight fill and insulation materials in embankments for roads, railways and other trafficked areas;
-   lightweight backfill for structures.
This document specifies procedures for assessment and verification of constancy of performance (AVCP) of characteristics of the expanded clay LWA.
This document does not cover the expanded clay LWA:
-   which are intended to be used as thermal insulation in- and under buildings (already covered in EN 14063-1:2004).

Leichte Schütt- und Wärmedämmstoffe für bautechnische Anwendungen (CEA) - Produkte aus Blähton-Leichtzuschlagstoffen (LWA)

Dieses Dokument legt die Eigenschaften von Schüttdämmstoffen aus Blähton Leichtzuschlagstoffen (Blähton LWA) für bautechnische Zwecke fest. Ausgenommen sind Anwendungen als Wärmedämmung in und unter Gebäuden, die in EN 14063-1 erfasst werden. In dem vorliegenden Dokument wird die Anwendung von Blähton Leichtzuschlagstoffen als leichte Schütt  und Dämmstoffe an Straßendämmen, Schienenwegen und anderen befahrbaren Bereichen sowie ihre Anwendung als leichte Hinterfüllung für Bauwerke beschrieben.
Darüber hinaus beschreibt dieses Dokument die Produkteigenschaften und enthält Verfahren zur Prüfung, Bewertung und Überprüfung der Leistungsbeständigkeit (AVCP), Kennzeichnung und Etikettierung.
Dieses Dokument legt keine Anforderungsstufen für eine bestimmte Eigenschaft fest, die ein Produkt erreichen muss, um für einen bestimmten Anwendungszweck gebrauchstauglich zu sein.

Matériaux de remplissage légers et produits isolants thermiques pour les applications du génie civil - Produits à base de granulats légers d’argile expansée

Le présent document spécifie les caractéristiques concernant les produits en vrac à base de granulats légers d’argile expansée pour les applications du génie civil, à l’exclusion de leur utilisation comme isolant thermique dans et sous les bâtiments qui est traitée par l’EN 14063-1. Le présent document couvre l’utilisation des granulats légers d’argile expansée comme matériau de remplissage léger et matériau isolant dans les talus pour les chaussées, les voies ferrées et d’autres zones de circulation, ainsi que comme remblai léger pour les structures.
Le présent document décrit également les caractéristiques des produits et inclut les modes opératoires d’essai, d’évaluation et de vérification de la constance des performances (EVCP), de marquage et d’étiquetage.
Le présent document ne spécifie pas le niveau requis d’une propriété donnée devant être atteint par un produit pour en démontrer l’aptitude à l’emploi dans une application particulière.

Toplotnoizolacijski in lahki polnilni proizvodi za inženirske objekte (CEA) - Proizvodi iz ekspandiranega glinenega agregatnega proizvoda (LWA)

General Information

• Status: Not Published
• ICS: 91.100.60 - Thermal and sound insulating materials
• Technical Committee: CEN/TC 88 - Thermal insulating materials and products
• Drafting Committee: CEN/TC 88/WG 20 - Project development of WI 00088165.
• Current Stage: 4599 - Dispatch of FV draft to CMC - Finalization for Vote
• Completion Date: 17-Jun-2020
• 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
• Mandate: M/103 - Mandate to CEN/CENELEC concerning the execution of standardization work for harmonized standards on thermal insulating products
• Mandate: M/138 - Addendum to Mandate M/103 on Thermal Insulation Products
• Ref Project: oSIST prEN 15732:2019 - Light weight fill and thermal insulation products for civil engineering applications (CEA) - Expanded clay lightweight aggregate products (LWA)

Relations

• Replaces: EN 15732:2012 - Light weight fill and thermal insulation products for civil engineering applications (CEA) - Expanded clay lightweight aggregate products (LWA)
• Effective Date: 21-Mar-2018

Standards Content (Sample)

SLOVENSKI STANDARD
oSIST prEN 15732:2019
01-julij-2019
Toplotnoizolacijski in lahki polnilni proizvodi za inženirske objekte (CEA) -
Proizvodi iz ekspandiranega glinenega agregatnega proizvoda (LWA)

Light weight fill and thermal insulation products for civil engineering applications (CEA) -

Expanded clay lightweight aggregate products (LWA)
Leichte Schütt- und Wärmedämmstoffe für bautechnische Anwendungen (CEA) -
Produkte aus Blähton-Leichtzuschlagstoffen (LWA)

Matériaux de remplissage légers et produits isolants thermiques pour les applications du

génie civil - Produits à base de granulats légers d’argile expansée
Ta slovenski standard je istoveten z: prEN 15732
ICS:
91.100.60 Materiali za toplotno in Thermal and sound insulating
zvočno izolacijo materials
oSIST prEN 15732:2019 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 15732:2019
DRAFT
EUROPEAN STANDARD
prEN 15732
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2019
ICS 91.100.60 Will supersede EN 15732:2012
English Version
Light weight fill and thermal insulation products for civil
engineering applications (CEA) - Expanded clay
lightweight aggregate products (LWA)

Matériaux de remplissage légers et produits isolants Leichte Schütt- und Wärmedämmstoffe für

thermiques pour les applications du génie civil - bautechnische Anwendungen (CEA) - Produkte aus

Produits à base de granulats légers d'argile expansée Blähton-Leichtzuschlagstoffen (LWA)

This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee

CEN/TC 88.

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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,

Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,

Turkey 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
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 15732:2019 E

worldwide for CEN national Members.
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Contents Page

European foreword ...................................................................................................................................................... 5

1 Scope .................................................................................................................................................................... 6

2 Normative references .................................................................................................................................... 6

3 Terms, definitions, symbols and abbreviated terms ......................................................................... 7

3.1 Terms and definitions ................................................................................................................................... 7

3.2 Symbols, units and abbreviated terms .................................................................................................... 8

4 Product characteristics ................................................................................................................................. 9

4.1 General................................................................................................................................................................ 9

4.2 For all applications ......................................................................................................................................... 9

4.2.1 Loose bulk density .......................................................................................................................................... 9

4.2.2 Aggregate size .................................................................................................................................................. 9

4.2.3 Reaction to fire............................................................................................................................................... 10

4.2.4 Durability characteristics .......................................................................................................................... 10

4.3 For specific applications ............................................................................................................................. 10

4.3.1 General.............................................................................................................................................................. 10

4.3.2 Thermal resistance and thermal conductivity ................................................................................... 10

4.3.3 Specific heat capacity .................................................................................................................................. 10

4.3.4 Particle density .............................................................................................................................................. 11

4.3.5 Water content ................................................................................................................................................. 11

4.3.6 Water absorption .......................................................................................................................................... 11

4.3.7 Compressibility and confined compressive strength ...................................................................... 11

4.3.8 Compressive creep ....................................................................................................................................... 11

4.3.9 Shear strength – static loading ................................................................................................................. 11

4.3.10 Cyclic compression ....................................................................................................................................... 11

4.3.11 Shear strength – cyclic loading................................................................................................................. 11

4.3.12 Water permeability ...................................................................................................................................... 11

4.3.13 Water vapour transmission ...................................................................................................................... 12

4.3.14 Chemical characteristics ............................................................................................................................ 12

4.3.15 Freezing and thawing resistance............................................................................................................. 12

4.3.16 Dangerous substances................................................................................................................................. 12

4.4 Other characteristics — Bulk crushing resistance ........................................................................... 12

5 Test methods .................................................................................................................................................. 12

5.1 Sampling and sample reduction .............................................................................................................. 12

5.2 Conditioning ................................................................................................................................................... 12

5.3 Testing .............................................................................................................................................................. 12

6 Designation code ........................................................................................................................................... 13

7 Assessment and Verification of the Constancy of Performance (AVCP) ................................... 14

7.1 General.............................................................................................................................................................. 14

7.2 Product-type Testing ................................................................................................................................... 14

7.3 Factory Production Control (FPC) .......................................................................................................... 14

8 Marking and labelling ................................................................................................................................. 14

Annex A (normative) Test for mechanical and physical properties of expanded clay LWA –

Static Triaxial Compression Test for determination of shear strength properties .............. 16

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A.1 Scope ................................................................................................................................................................. 16

A.2 Definitions, symbols and abbreviations ............................................................................................... 16

A.3 Principle ........................................................................................................................................................... 17

A.4 Triaxial apparatus ........................................................................................................................................ 17

A.4.1 General ............................................................................................................................................................. 17

A.4.2 Loading device ............................................................................................................................................... 17

A.4.3 Confining pressure device ......................................................................................................................... 17

A.4.4 Displacement transducers ........................................................................................................................ 17

A.4.5 Calibration....................................................................................................................................................... 18

A.4.6 Specimen cap and base ............................................................................................................................... 19

A.4.7 Porous discs .................................................................................................................................................... 19

A.5 Preparation of samples .............................................................................................................................. 20

A.5.1 Number of test specimens ......................................................................................................................... 20

A.5.2 Procedures for compaction of laboratory test specimens ............................................................. 20

A.5.3 Compaction using vibrations .................................................................................................................... 20

A.5.4 Other means of compaction ...................................................................................................................... 20

A.6 Test procedures for determination of strength properties .......................................................... 20

A.7 Test report ...................................................................................................................................................... 21

A.7.1 General ............................................................................................................................................................. 21

A.7.2 General data ................................................................................................................................................... 21

A.7.3 Friction characteristics............................................................................................................................... 21

Annex B (normative) Test for mechanical and physical properties of expanded clay LWA —

Determination of the resistance to cyclic compressive loading .................................................. 22

B.1 Scope ................................................................................................................................................................. 22

B.2 Definitions ....................................................................................................................................................... 22

B.3 Principle ........................................................................................................................................................... 22

B.4 Apparatus ........................................................................................................................................................ 22

B.5 Preparation of test specimens ................................................................................................................. 24

B.6 Test procedure .............................................................................................................................................. 24

B.6.1 General ............................................................................................................................................................. 24

B.6.2 Measurement of height h .......................................................................................................................... 24

B.6.3 Filling of the container and calculation of the mass ........................................................................ 25

B.6.4 Compaction by vibration (compressibility) ........................................................................................ 25

B.6.5 Deformation by static loading .................................................................................................................. 25

B.6.6 Cyclic compression ....................................................................................................................................... 25

B.7 Calculations and expression of results ................................................................................................. 26

B.7.1 Compaction by vibration (compressibility) ........................................................................................ 26

B.7.2 Bulk density .................................................................................................................................................... 27

B.7.3 Deformation by static loading .................................................................................................................. 27

B.7.4 Cyclic compression ....................................................................................................................................... 27

B.8 Test report ...................................................................................................................................................... 28

B.8.1 Required data ................................................................................................................................................. 28

B.8.2 Optional data .................................................................................................................................................. 28

Annex C (normative) Test for mechanical and physical properties of expanded clay LWA —

Determination of the compressive creep............................................................................................. 29

C.1 Scope ................................................................................................................................................................. 29

C.2 Definitions ....................................................................................................................................................... 29

C.3 Principle ........................................................................................................................................................... 29

C.4 Apparatus ........................................................................................................................................................ 29

C.5 Preparation of test specimens ................................................................................................................. 31

C.6 Test procedure .............................................................................................................................................. 31

C.6.1 Measurements of height h ........................................................................................................................ 31

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C.6.2 Filling of the container and calculation of mass ................................................................................ 31

C.6.3 Compaction by vibration (compressibility) ........................................................................................ 31

C.6.4 Deformation by static loading (before creep measurements) ..................................................... 31

C.6.5 Compressive creep ....................................................................................................................................... 31

C.7 Calculations and expression of results ................................................................................................. 32

C.7.1 Compaction by vibration (compressibility) ........................................................................................ 32

C.7.2 Bulk density .................................................................................................................................................... 33

C.7.3 Deformation by static loading (before creep measurement) ....................................................... 33

C.7.4 Compressive creep ....................................................................................................................................... 33

C.8 Test report ....................................................................................................................................................... 34

C.8.1 Required data ................................................................................................................................................. 34

C.8.2 Optional data .................................................................................................................................................. 34

Annex D (normative) Indicative test frequencies for factory production control (FPC) ................... 35

Annex E (informative) Tabulated λ -values of expanded clay LWA in lightweight fill

10,dry

applications ..................................................................................................................................................... 36

Annex ZA (informative) Relationship between this European Standard with Regulation (EU)

No. 305/2011 .................................................................................................................................................. 37

ZA.1 Scope and relevant characteristics ......................................................................................................... 37

ZA.2 System of Assessment and Verification of Constancy of Performance (AVCP) ....................... 39

ZA.3 Assignment of AVCP tasks .......................................................................................................................... 39

Bibliography ................................................................................................................................................................. 42

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European foreword

This document (prEN 15732:2019) has been prepared by Technical Committee CEN/TC 88 “Thermal

insulating materials and products”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 15732:2012.

This document has been prepared under a standardization request given to CEN/CENELEC by the

European Commission and the European Free Trade Association.

For relationship with Regulation (EU) No 305/2011, see informative Annex ZA, which is an integral part

of this document.
Annexes A, B, C and D are normative. Annex E is informative.
The most significant changes compared to the previous editions include:

a. Amending terminology and Annex ZA to be consistent with the Construction Products Regulation;

b. Adding a specific clause on declaration of dangerous substances based a dossier approved by EC;

c. Deleting the optional method using vacuum in Annex A;

d. Replacement of the former clause on Evaluation of Conformity, and the normative text from the

former Annex on factory Production Control, with new normative clauses on Assessment and

Verification of Constancy of Performance.
No changes to existing technical classes and/or threshold levels have been made.
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1 Scope

This document specifies the characteristics for loose-fill expanded clay lightweight aggregate (expanded

clay LWA) products for Civil Engineering Applications excluding the use as thermal insulation in and

under buildings which are covered by EN 14063-1. The document covers the use of expanded clay LWA

as lightweight fill and insulation materials in embankments for roads, railways and other trafficked

areas and as lightweight backfill for structures.

This document also describes the product characteristics and includes procedures for testing,

assessment and verification of the constancy of performance (AVCP), marking and labelling.

This document does not specify the required level of a given property to be achieved by a product to

demonstrate fitness for purpose in a particular application.
2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements 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 932-1, Tests for general properties of aggregates – Part 1: Methods for sampling

EN 932-2, Tests for general properties of aggregates – Part 2: Methods for reducing laboratory samples

EN 932-5, Tests for general properties of aggregates – Part 5: Common equipment and calibration

EN 933-1, Tests for geometrical properties of aggregates – Part 1: Determination of particle size

distribution – Sieving method

EN 1097-3, Tests for mechanical and physical properties of aggregates – Part 3: Determination of loose

bulk density and voids

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 1097-6:2013, Tests for mechanical and physical properties of aggregates – Part 6: Determination of

particle density and water absorption

EN 1097-11, Tests for mechanical and physical properties of aggregates – Part 11: Determination of

compressibility and confined compressive strength of lightweight aggregates

EN 1367-7, Tests for thermal and weathering properties of aggregates – Part 7: Determination of

resistance to freezing and thawing of Lightweight aggregates
EN 13055:2016, Lightweight aggregates
EN 13172, Thermal insulation products – Evaluation of conformity

EN 13286-4, Unbound and hydraulically bound mixtures – Part 4: Test methods for laboratory reference

density and water content – Vibrating hammer

EN 13286-5, Unbound and hydraulically bound mixtures – Part 5: Test methods for laboratory reference

density and water content – Vibrating table
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EN 13286-7, Unbound and hydraulically bound mixtures – Part 7: Cyclic load triaxial test for unbound

mixtures

EN 13501-1, Fire classification of construction products and building elements – Part 1: Classification

using data from reaction to fire tests

EN 13820, Thermal insulating materials for building applications – Determination of organic content

EN 14063-1, Thermal insulation products for buildings – In-situ formed expanded clay lightweight

aggregate products – Part 1: Specification for the loose-fill products before installation

CEN/TS 16637-3, Construction products – Assessment of release of dangerous substances – Part 3:

Horizontal up-flow percolation test
EN ISO 9229:2007, Thermal insulation – Vocabulary (ISO 9229:2007)

EN ISO 10456, Building materials and products – Hygrothermal properties –Tabulated design values and

procedures for determining declared and design thermal values (ISO 10456)
3 Terms, definitions, symbols and abbreviated terms
3.1 Terms and definitions

For the purposes of this document, the terms and definitions given in EN ISO 9229:2007 and the

following apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at http://www.iso.org/obp
3.1.1
expanded clay
lightweight aggregate

insulation material or product composed of lightweight granular material having a cellular structure

formed by expanding clay minerals by heat
3.1.2
compressibility
deformation at a defined load and/or by vibration
3.1.3
confined compressive strength
CS10
load where the deformation of a vibrated specimen is 10 %
3.1.4
stiffness modulus
tangent to the load-deformation curve and is related to the level of deformation
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3.1.5
compressive creep
deformation at a constant load in a specified time
3.1.6
cyclic compression

deformation at a defined load and given number of cyclic compressive loading cycles with square wave

load application
3.1.7
compaction

mechanical compression of the installed insulation layer, expressed as a percentage of the initial

untreated layer thickness
Note 1 to entry: Compression performed, e.g. by vibrator.
3.1.8
level

result of the assessment of the performance of a construction product in relation to its essential

characteristics, expressed as a numerical value
[SOURCE: CPR, Regulation (EU) No 305/2011]
3.1.9
class

range of levels, delimited by a minimum and a maximum value, of performance of a construction

product
[SOURCE: CPR, Regulation (EU) No 305/2011]
3.1.10
declared value

value or range of values that a manufacturer is confident in achieving, taking into account the precision

of test methods used, the variability of the production process(-es) and the product performance

3.2 Symbols, units and abbreviated terms
Symbols and units used in this document:
d is the lower sieve size (mm)
D is the upper sieve size (mm)
3 3
LD is the declared value for loose bulk density (kg/m or Mg/m )
AS is the declared value for aggregate size (mm)
C compressibility (%)

CS(10) is the declared level for confined compressive strength at 10 % deformation (N/mm )

CS(2) is the declared level for confined compressive strength at 2 % deformation (N/mm )

CC (i) is the declared level for compressive creep at a defined (i) load (%)

CY(i/n) is the declared deformation at a defined (i) load after a defined number (n) of cyclic

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compressive loading cycles (%)
Abbreviated terms used in this document:
LWA is Lightweight Aggregate
PTT is Product-Type Testing
CEA is Civil Engineering Applications
DoP is Declaration of Performance
...