SIST EN 13286-2:2010
(Main)Unbound and hydraulically bound mixtures - Part 2: Test methods for laboratory reference density and water content - Proctor compaction
Unbound and hydraulically bound mixtures - Part 2: Test methods for laboratory reference density and water content - Proctor compaction
This European Standard specifies test methods for the determination of the relationship between the water content and the dry density of hydraulically bound or unbound mixtures after compaction under specified test conditions using Proctor compaction. It allows an estimate of the mixture density that can be achieved on construction sites and provides a reference parameter for assessing the density of the compacted layer of the mixture. This European Standard applies only to unbound and hydraulically bound mixtures of aggregates used in road construction and civil engineering work. It is not applicable to soils for earthworks. The results of this test method can be used as a basis for comparing mixtures before use in road construction. The test results also allow a conclusion to be drawn as to the water content at which mixtures can be satisfactorily compacted in order to achieve a given dry density. This test is suitable for mixtures with different values of upper sieve (D) size up to 63 mm and an oversize up to 25 % by mass.
Ungebundene und hydraulisch gebundene Gemische - Teil 2: Laborprüfverfahren zur Bestimmung der Dichte und des Wassergehaltes - Proctorversuch
Diese Europäische Norm legt Verfahren zur Bestimmung der Beziehung zwischen dem Wassergehalt und der Trockendichte ungebundener und hydraulisch gebundener Gemische nach einer Proctorverdichtung unter vorgegebenen Prüfbedingungen fest. Sie liefert einen Anhaltswert für die auf der Baustelle erreichbare Dichte des Gemisches und einen Bezugsparameter zur Beurteilung der Dichte einer verdichteten Schicht des Gemisches. Diese Europäische Norm gilt nur für ungebundene und hydraulisch gebundene Gemische von Gesteins-körnungen, die für Straßenbau- und Tiefbauarbeiten angewendet werden. Sie ist nicht auf die Böden bei Erdarbeiten anwendbar. Die Prüfergebnisse können als Grundlage für den Vergleich von Gemischen vor ihrer Verwendung im Straßenbau angewendet werden. Die Prüfergebnisse lassen auch erkennen, bei welchem Wassergehalt sich ein Gemisch günstig verdichten lässt, um eine bestimmte Trockendichte zu erreichen. Diese Prüfung ist für Gemische mit einer oberen Siebgröße (D) bis 63 mm und mit Überkornanteilen bis 25 Massenanteilen in Prozent geeignet.
Mélanges traités et mélanges non traités - Partie 2: Méthodes d'essai de détermination en laboratoire de la masse volumique de référence et de la teneur en eau - Compactage Proctor
La présente Norme européenne spécifie une méthode de détermination du rapport existant entre la teneur en eau et la masse volumique sèche d’un matériau non traité ou traité aux liants hydrauliques après compactage dans des conditions d'essai spécifiées selon le compactage Proctor. Les résultats d'essai donnent une estimation de la masse volumique qu'il est possible de conférer au matériau sur les chantiers et constituent un paramètre de référence pour évaluer la masse volumique de la couche de matériau une fois compactée.
La présente Norme européenne s’applique seulement aux mélanges non traités ou traités aux liants hydrauliques, à partir de granulats utilisés pour la construction des routes et le génie civil. Elle n’est pas applicable aux sols en terrassement. Les résultats de cette méthode d'essai peuvent être utilisés comme base pour comparer les mélanges avant de les utiliser dans la construction des chaussées. Ces résultats d'essai permettent aussi de déduire la teneur en eau à laquelle le matériau est le plus facile à compacter pour obtenir une masse volumique sèche donnée.
Cet essai est applicable à des mélanges avec des dimensions granulaires supérieures (D) variables pouvant aller jusqu’à 63 mm et dont le refus ne dépasse pas 25 % en masse.
Nevezane in hidravlično vezane zmesi - 2. del: Preskusne metode za določanje laboratorijske referenčne gostote in deleža vlage - Preskus po Proctorju
Ta evropski standard določa preskusne metode za določanje razmerja med deležem vlage in suho gostoto hidravlično vezanih ali nevezanih zmesi po stiskanju pod določenimi preskusnimi pogoji s preskusom po Proctorju. Omogoča oceno gostote zmesi, ki se lahko doseže na gradbiščih, in zagotavlja referenčni parameter za ocenjevanje gostote stisnjene plasti zmesi. Ta evropski standard velja za le nevezane in hidravlično vezane zmesi agregatov, ki se uporabljajo pri gradnji cest in v gradbeništvu. Ne velja za prsti pri zemeljskih delih. Rezultati te preskusne metode se lahko uporabljajo kot osnova za primerjavo zmesi pred uporabo za gradnjo cest. Rezultati preskusa omogočajo tudi oblikovanje ugotovitev v zvezi z deležem vlage, pri katerem se zmesi zadovoljivo stisnejo in dosežejo dano suho gostoto. Ta preskus je primeren za zmesi z različnimi vrednostmi zgornje velikosti zrn (D) do 63 mm in z največ 25-odstotnim masnim presežkom.
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.RFWRUMXUngebundene und hydraulisch gebundene Gemische - Teil 2: Laborprüfverfahren zur Bestimmung der Dichte und des Wassergehaltes - ProctorversuchMélanges traités et mélanges non traités - Partie 2: Méthodes d'essai de détermination en laboratoire de la masse volumique de référence et de la teneur en eau - Compactage ProctorUnbound and hydraulically bound mixtures - Part 2: Test methods for laboratory reference density and water content - Proctor compaction93.080.20Materiali za gradnjo cestRoad construction materialsICS:Ta slovenski standard je istoveten z:EN 13286-2:2010SIST EN 13286-2:2010en,fr,de01-december-2010SIST EN 13286-2:2010SLOVENSKI
STANDARDSIST EN 13286-2:20051DGRPHãþD
SIST EN 13286-2:2010
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 13286-2
September 2010 ICS 93.080.20 Supersedes EN 13286-2:2004English Version
Unbound and hydraulically bound mixtures - Part 2: Test methods for laboratory reference density and water content - Proctor compaction
Mélanges traités et mélanges non traités - Partie 2: Méthodes d'essai de détermination en laboratoire de la masse volumique de référence et de la teneur en eau - Compactage Proctor
Ungebundene und hydraulisch gebundene Gemische -Teil 2: Laborprüfverfahren zur Bestimmung der Dichte und des Wassergehaltes - Proctorversuch This European Standard was approved by CEN on 22 July 2010.
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. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN Management Centre or to any CEN member.
This European Standard exists 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 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.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13286-2:2010: ESIST EN 13286-2:2010
EN 13286-2:2010 (E) 2 Contents page Foreword .31Scope .52Normative references .53Terms and definitions .54Principle .65Apparatus .66Preparation . 106.1General . 106.2Samples for compaction tests . 116.3Preliminary assessment . 116.4Mixtures totally passing the 16 mm test sieve . 116.5Mixtures not totally passing the 16 mm test sieve . 116.5.1Mixtures totally passing the 31,5 mm test sieve . 116.5.2Mixtures 75 % to 100 % passing the 31,5 mm test sieve and totally passing the 63 mm test sieve . 126.5.3Mixtures with an oversize > 25 % by mass on the 31,5 mm test sieve and 75 % to 100 % passing the 63 mm test sieve . 127Procedure . 127.1Proctor test for mixtures compacted with a 2,5 kg rammer (A) in the Proctor mould (A) . 127.2Proctor test for mixtures compacted with a 2,5 kg rammer (A) in the large Proctor mould (B) . 137.3Proctor test for mixtures compacted with a 15,0 kg rammer (C) in the extra large Proctor mould (C) . 147.4Modified Proctor test for mixtures compacted with a 4,5 kg rammer (B) in the Proctor mould (A) . 147.5Modified Proctor test for mixtures compacted with a 4,5 kg rammer (B) in the large Proctor mould (B) . 157.6Modified Proctor test for mixtures compacted with a 15,0 kg rammer (C) in the extra large Proctor mould (C) . 168Calculations, plotting and expression of results . 178.1Calculations . 178.2Plotting . 179Test report . 18Annex A (informative)
Dimensions of alternative apparatus . 19Annex B (normative)
One point Proctor test . 22Annex C (informative)
Correction for oversize (material retained on the 16 mm, 31,5 mm and 63 mm test sieves) . 26Annex D (informative)
Proctor test for self-draining mixtures. 27 SIST EN 13286-2:2010
EN 13286-2:2010 (E) 3 Foreword This document (EN 13286-2:2010) has been prepared by Technical Committee CEN/TC 227 “Road Materials”, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by March 2011, and conflicting national standards shall be withdrawn at the latest by March 2011. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 13286-2:2004. This document is one of a series of standards as listed below. EN 13286-1, Unbound and hydraulically bound mixtures Part 1: Test methods for laboratory reference density and water content Introduction, general requirements and sampling EN 13286-2, Unbound and hydraulically bound mixtures — Part 2: Test methods for laboratory reference density and water content — Proctor compaction EN 13286-3, Unbound and hydraulically bound mixtures Part 3: Test methods for laboratory reference density and water content Vibrocompression with controlled parameters 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 EN 13286-7, Unbound and hydraulically bound mixtures Part 7: Cyclic load triaxial test for unbound mixtures EN 13286-40, Unbound and hydraulically bound mixtures Part 40: Test method for the determination of the direct tensile strength of hydraulically bound mixtures EN 13286-41, Unbound and hydraulically bound mixtures Part 41: Test method for the determination of the compressive strength of hydraulically bound mixtures EN 13286-42, Unbound and hydraulically bound mixtures Part 42: Test method for the determination of the indirect tensile strength of hydraulically bound mixtures EN 13286-43, Unbound and hydraulically bound mixtures Part 43: Test method for the determination of the modulus of elasticity of hydraulically bound mixtures EN 13286-44, Unbound and hydraulically bound mixtures Part 44: Test method for the determination of the alpha coefficient of vitrified blast furnace slag EN 13286-45, Unbound and hydraulically bound mixtures Part 45: Test method for the determination of the workability period of hydraulically bound mixtures SIST EN 13286-2:2010
EN 13286-2:2010 (E) 4 EN 13286-46, Unbound and hydraulically bound mixtures Part 46: Test method for the determination of the moisture condition value EN 13286-47, Unbound and hydraulically bound mixtures Part 47: Test methods for the determination of California bearing ratio, immediate bearing index and linear swelling EN 13286-48, Unbound and hydraulically bound mixtures Part 48: Test method for the determination of degrees of pulverisation EN 13286-49, Unbound and hydraulically bound mixtures Part 49: Accelerated swelling test for soil treated by lime and/or hydraulic binder EN 13286-50, Unbound and hydraulically bound mixtures Part 50: Method for the manufacture of test specimens of hydraulically bound mixtures using Proctor equipment or vibrating table compaction EN 13286-51, Unbound and hydraulically bound mixtures Part 51: Method for the manufacture of test specimens of hydraulically bound mixtures using vibrating hammer compaction EN 13286-52, Unbound and hydraulically bound mixtures Part 52: Method for the manufacture of test specimens of hydraulically bound mixtures using vibrocompression EN 13286-53, Unbound and hydraulically bound mixtures Part 53: Methods for the manufacture of test specimens of hydraulically bound mixtures using axial compression According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: 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 the United Kingdom.
SIST EN 13286-2:2010
EN 13286-2:2010 (E) 5 1 Scope This European Standard specifies test methods for the determination of the relationship between the water content and the dry density of hydraulically bound or unbound mixtures after compaction under specified test conditions using Proctor compaction. It allows an estimate of the mixture density that can be achieved on construction sites and provides a reference parameter for assessing the density of the compacted layer of the mixture. This European Standard applies only to unbound and hydraulically bound mixtures of aggregates used in road construction and civil engineering work. It is not applicable to soils for earthworks. The results of this test method can be used as a basis for comparing mixtures before use in road construction. The test results also allow a conclusion to be drawn as to the water content at which mixtures can be satisfactorily compacted in order to achieve a given dry density. This test is suitable for mixtures with different values of upper sieve (D) size up to 63 mm and an oversize up to 25 % by mass. 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 933-1, Tests for geometrical properties of aggregates Part 1: Determination of particle size distribution Sieving method EN 933-2, Tests for geometrical properties of aggregates Part 2: Determination of particle size distribution Test sieves, nominal size of apertures 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, Tests for mechanical and physical properties of aggregates Part 6: Determination of particle density and water absorption EN 13286-1:2003, Unbound and hydraulically bound mixtures Part 1: Test methods for laboratory reference density and water content Introduction, general requirements and sampling 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 13286-1:2003 and the following apply. 3.1 Proctor density laboratory reference density determined from the dry density/water content relationship obtained by the Proctor test with a specific energy of approximately 0,6 MJ/m3 3.2 modified Proctor density laboratory reference density determined from the dry density/water content relationship obtained by the modified Proctor test with a specific energy of about 2,7 MJ/m3 3.3 initial water content w0i water content of a given mixture sample i before compaction SIST EN 13286-2:2010
EN 13286-2:2010 (E) 6 3.4 final water content wFi water content of a given mixture sample i after compaction 3.5 bleeding water content wB maximum value of the initial water content for which there is no loss of water during compaction NOTE w0 – wF ≤ 0,3 % 3.6 self-draining mixture mixture for which a loss of water occurs during compaction preventing the definition of a maximum dry density on the Proctor curve NOTE w0 − wF > 0,3 % 3.7 dry density at bleeding ρρρρdB laboratory reference dry density of the self-draining mixture 4 Principle Six similar compaction tests are described, each with procedural variations related to the maximum particle size of the mixture to be investigated, the required quantity of sample and the size of the mould. In the Proctor test a 2,5 kg rammer is used. In the modified Proctor test a much greater degree of compaction is added by using different rammers (4,5 kg or 15 kg) and/or greater drops on thinner layer of material as in the Proctor test. The size of the compaction mould is chosen in relation to the value of D. If oversize particles are present equivalent tests are carried out in larger moulds. If more than 25 % of material is retained on a 63 mm test sieve, the test method is not suitable. 5 Apparatus 5.1 Cylindrical test moulds, fitted with a removable extension not less than 50 mm high and a detachable steel base plate as shown in Figure 1. The mould shall have a smooth finish on inside face. The dimensions of moulds (Proctor mould (A), large Proctor mould (B) and extra large Proctor mould (C)) shall be as given in Table 1. The diameter of the mould shall be at least four times of D of the mixture. Table 1 — Dimensions of new cylindrical test moulds Proctor mould Diameter d1 mm Height h1 mm Thickness Wall w mm Base plate t mm A 100,0 ± 1,0 120,0 ± 1,0 7,5 ± 0,5 11,0 ± 0,5 B 150,0 ± 1,0 120,0 ± 1,0 9,0 ± 0,5 14,0 ± 0,5 C 250,0 ± 1,0 200,0 ± 1,0 14,0 ± 0,5 20,0 ± 0,5 NOTE Annex A gives details of other cylindrical test moulds which may be in current use.
SIST EN 13286-2:2010
EN 13286-2:2010 (E) 7 Dimensions in millimetre
Figure 1 — Principle of Proctor mould SIST EN 13286-2:2010
EN 13286-2:2010 (E) 8 5.2 Compactor, consisting of a rammer which is allowed to fall freely onto a defined part of the upper surface of the mixture in the mould. The essential requirements of the rammers shall be as given in Table 2. Table 2 — Essential requirements of new rammers Rammer Essential requirements Mass of rammer mRkg Diameter of base d2mm Height of fall h2 mm A 2,50 ± 0,02 50,0 ± 0,5 305 ± 3 B 4,50 ± 0,04 50,0 ± 0,5 457 ± 3 C 15,00 ± 0,04 125,0 ± 0,5 600 ± 3 NOTE Annex A gives details of other rammers which can be in current use. NOTE 1 Different types of rammer are used to apply different energy levels. An example of a rammer is given in Figure 2. Dimensions in millimetres
Key 1 4 holes ∅6 2 12 holes ∅6 Figure 2 — Principle of rammer and guide SIST EN 13286-2:2010
EN 13286-2:2010 (E) 9 The rammer shall be equipped with a suitable arrangement for adjusting the height of drop to suit the level of the upper surface of the mixture in the mould. NOTE 2 The design shown in Figure 2 has been found to be satisfactory, but alternative designs, including automatic compactors, may be used provided the essential requirements in Table 2 or Annex A are conformed to and the alternative design gives the same results. 5.3 Steel plate, conforming to Table 3. NOTE For the end of compaction on the last layer a steel plate (see Figure 3) may be used. Table 3 — Dimensions of the steel plate Proctor mould Diameter d3 mm Thickness S2 mm A d1 – 0,5 10,0 ± 0,1 B C 20,0 ± 0,1 NOTE The design of the steel plate is shown in Figure 3.
Dimensions in millimetres
Key 1 Thread for screwing in handle Figure 3 — Principle of steel plate 5.4 Test sieves, conforming to EN 933-2. 5.5 Balances, readable to 0,1 % of the compacted sample mass. 5.6 Corrosion-resistant metal or plastics mixing tray, with sides about 80 mm deep, of a size suitable for the quantity of material to be used. 5.7 Spatula, trowel or similar tool. 5.8 Steel straightedge, of length 200 mm or more; one edge shall be bevelled if the rule is thicker than 3 mm, or palette knife with straight blade. 5.9 Apparatus for determination of water content, conforming to EN 1097-5. 5.10 Vernier depth gauge, readable to 0,02 mm. 5.11 Mixer, with a volume of at least 0,01 m3. 5.12 Concrete block (min. 50 kg), as support for the compaction by means of manually operated rammer. SIST EN 13286-2:2010
EN 13286-2:2010 (E) 10 6 Preparation 6.1 General Compaction of the mixture sample shall be carried out in a cylindrical test mould, the dimensions of which are a function of the particle size of the mixture sample. The quantity of sample required and the size of the test mould shall be selected according to Table 4. Table 4 — Summary of sample preparation methods Percentage passing test sieves Preparation, clause Mass of sample kg Proctor mould 16 mm 31,5 mm 63 mm 100 – – 6.4 15 A 40 B 75 to 100 100 – 6.5.1 40 B < 75 75 to 100 100 6.5.2 40 B – < 75 75 to 100 6.5.3 200 C Table 5 summarizes the different types of tests by defining the permitted combinations of mould size and rammer mass. NOTE The specifications for compaction in the larger moulds are based on the same compaction effort per unit of volume of the mixture as in the smaller mould. The variable effects of the sidewall friction can result in differences between the densities achieved in the two moulds. For a series of tests on a particular mixture, one size of mould should be used consistently. Table 5 — Summary of Proctor test and modified Proctor test Type of test Characteristics of test Symbol Dimension Proctor mould A B C Proctor test Mass of rammer mR kg 2,5 2,5 15,0 Diameter of rammer d2 mm 50 50 125,0 Height of fall h2 mm 305 305 600 Number of layers – – 3 3 3 Number of blows per layer – – 25 56 22 Modified Proctor test Mass of rammer mR kg 4,5 4,5 15,0 Diameter of rammer d2 mm 50 50 125,0 Height of fall h2 mm 457 457 600 Number of layers – – 5 5 3 Number of blows per layer – – 25 56 98 For the routine control of pavement layers the one point Proctor test in Annex B may be used. NOTE In this table, the values for the dimensions are rounded. For the exact values see Table 2. SIST EN 13286-2:2010
EN 13286-2:2010 (E) 11 6.2 Samples for compaction tests The method of preparation of samples for these tests, and the quantity of material required, depend on the size of the largest particles. The assessment of these factors is covered in 6.3. For the compaction test separate batches of mixture shall be prepared at different water contents. Each batch shall be compacted only once. NOTE If the same batch of mixture is used at different water contents, the characteristics of the material will progressively change after each compaction stage, particularly for mixtures where the particles are susceptible to crushing. 6.3 Preliminary assessment 6.3.1 The initial mixture sample for testing shall be obtained in accordance with the procedure described in EN 13286-1. The procedure to be used for sample preparation and for carrying out the compaction test shall be selected on the basis of the assessment in 6.3.2 and 6.3.3. 6.3.2 Determine the approximate percentages (to an accuracy of ± 5 %) by mass of particles in the mixture sample passing the 16 mm, 31,5 mm or 63 mm test sieves using the sieving procedures in EN 933-1. The material used for this assessment shall not be used for the compaction test. 6.3.3 Use these percentages to select the method of sample preparation, the minimum mass of mixture required, and the type of mould to use for the compaction test as indicated in Table 4. 6.4 Mixtures totally passing the 16 mm test sieve Subdivide the initial sample to produce five or more representative samples, each of about 2,5 kg for mould A and 6 kg for mould B, according to EN 13286-1. Mix each sample thoroughly with different amounts of water to give a suitable range of water contents (see NOTES 1 to 4). The range of water contents shall be such that at least two values lies each side of the optimum at which the maximum dry density occurs. NOTE 1 The amount of water to be mixed with mixture at the commencement of the test will vary with the type of mixture under test. In general, with sandy and gravely mixtures a water content of 4 % to 6 % is suitable. NOTE 2 The water added to each sample should be such that a range of water contents is obtained which includes the optimum water content. In general, increments of 1 % to 2 % are suitable for sandy and gravely mixtures. To increase the accuracy of the test it might be desirable to prepare samples with smaller increments of water in the region of optimum water content. Three or four water contents should be included in the range 0,8 and 1,2 of the optimum water content. NOTE 3 It is important that the water is mixed thoroughly and adequately with the mixture, since inadequate mixing can give variable test results. NOTE 4 Recycled aggregates and slags are often more porous than natural aggregates. A higher value of water content and larger increments may be appropriate. If the mixture initially contains too much water allow it to partially air dry to the lowest water content at which the mixture is to be compacted, and mix thoroughly. If necessary, lower the water content of the material in an oven at a temperature in the range of 45 °C to 50 °C to obtain the desired water content to start the test. 6.5 Mixtures not totally passing the 16 mm test sieve 6.5.1 Mixtures totally passing the 31,5 mm test sieve Subdivide the initial sample to produce five or more representative samples each of approximately 6 kg. Follow the procedure in 6.4. SIST EN 13286-2:2010
EN 13286-2:2010 (E) 12 6.5.2 Mixtures 75 % to 100 % passing the 31,5 mm test sieve and totally passing the 63 mm test sieve Weigh the sample of the mixture. Remove and weigh the material retained on the 31,5 mm test sieve (oversize material). Determine the water content of oversize material wo as described in EN 1097-5. The particle density of the oversize material ρso shall also be determined according to EN 1097-6. Subdivide the material passing the 31,5 mm test sieve to produce five or more 6 kg samples of the mixture, otherwise proceed as described in 6.4. 6.5.3 Mixtures with an oversize > 25 % by mass on the 31,5 mm test sieve and 75 % to 100 % passing the 63 mm test sieve Weigh the sample of the mixture. Remove and weigh the material retained on the 63 mm test sieve (oversize material). Determine the water content of oversize material wo as described in EN 1097-5. The particle density of the oversize material ρso shall also be determined according to EN 1097-6. Subdivide the material passing the 63 mm test sieve to produce five or more representative samples each of approximately 25 kg. Follow the procedure in 6.4. 7 Procedure 7.1 Proctor test for mixtures compacted with a 2,5 kg rammer (A) in the Proctor mould (A) 7.1.1 Use a 2,5 kg rammer (A) falling 305 mm to compact the mixture in three layers into the Proctor mould (A). 7.1.2 Weigh the Proctor mould (A) with the base plate attached to 1 g and record the mass as m1. If not known measure the internal dimensions to 0,5 mm. Attach the extension to the mould and place the mould assembly on a solid base, e.g. a concrete floor or plinth. Lubricate the internal face of the extension. 7.1.3 For one of the prepared samples place a quantity of moist mixture in the mould such that when compacted it occupies a little over one third of the height of the mould body. Apply 25 blows from the 2,5 kg rammer (A) dropped from a height of 305 mm above the mixture as controlled by the guide. Distribute the blows uniformly over the surface and ensure that the rammer always falls freely and is not obstructed by mixture in or on the guide. NOTE One method of ensuring that the blows are applied evenly over the surface of the layer is to apply three sets of eight blows well distributed over the surface, with a final blow in the centre. 7.1.4 Repeat the procedure in 7.1.3 twice, so that the amount of mixture used is sufficient to fill the mould body, with the surface not more than 10 mm proud of the upper edge of the mould body. NOTE It is necessary to control the total volume of mixture compacted, since it has been found that, if the amount of mixture struck off after removing the extension is too great, the test results will be inaccurate. Remove the extension, strike off the excess mixture and level off the surface of the compacted mixture carefully to the top of the mould using the straightedge. Replace any coarse particles, removed in the travelling process, by finer material from the sample, well pressed in. SIST EN 13286-2:2010
EN 13286-2:2010 (E) 13 Weigh the materials and mould with the base plate to 1 g and record the mass as m2. Remove the compacted mixture from the mould and place it on the metal tray for determination of its water content, w, as described in EN 1097-5. 7.1.5 Carry out a compaction test on each of the remaining prepared samples as described in 7.1.3 and 7.1.4, to give a total of at least five determinations or at least three determinations, if the mixture is well known. The water contents shall be such that the optimum water content, at which the laboratory dry density occurs, lies near the middle of the range. 7.2 Proctor test for mixtures compacted with a 2,5 kg rammer (A) in the large Proctor mould (B) 7.2.1 Use a 2,5 kg rammer (A) falling 305 mm to compact the mixture in three layers into the large Proctor mould (B). NOTE This method can also be used for finer mixtures that would normally be compacted in the Proctor mould when it is required to perform a California bearing ratio (CBR) test on the compacted mixture at each water content. 7.2.2 Weigh the large Proctor mould (B) with base plate attached to 5 g and record the mass as m1. If not known measure the internal dimensions to 0,5 mm. Attach the extension to the mould and place the mould assembly on a solid base, e.g. a concrete floor or plinth. Lubricate the internal face of the extension. 7.2.3 For one of the prepared samples place a quantity of moist mixture in the mould such that when compacted it occupies a little over one third of the height of the mould body. Apply 56 blows from the 2,5 kg rammer (A) dropped from a height of 305 mm above the mixture as controlled by the guide. Distribute the blows uniformly over the surface and ensure that the rammer always falls freely and is not obstructed by mixture in or on the guide. NOTE One method of ensuring that the blows are applied evenly over the surface of the layer is to apply eight sets of seven blows. In the set of seven blows, six are well distributed over the surface, and a final blow is applied to the centre. 7.2.4 Repeat the proc
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.