SIST EN 932-3:1999/A1:2004
(Amendment)Tests for general properties of aggregates - Part 3: Procedure and terminology for simplified petrographic description
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- 31-Mar-2004
- 21-Aug-2022
- 91.100.15
- 89/106/EEC
- AGR
Tests for general properties of aggregates - Part 3: Procedure and terminology for simplified petrographic description
Provision for the examination of a minimum of 150 particles in the context of the scope of the standard, which is for a simple qualitative description rather than a quantitative analysis.
Prüfverfahren für allgemeine Eigenschaften von Gesteinskörnungen - Teil 3: Durchführung und Terminologie einer vereinfachten petrographischen Beschreibung
Essais pour déterminer les propriétés générales des granulats - Partie 3: Procédure et terminologie pour la description pétrographique simplifiée
Preskusi splošnih lastnosti agregatov - 3. del: Postopek in izrazje poenostavljenega petrografskega opisa
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Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 932-3:1999/A1:2004
01-april-2004
Preskusi splošnih lastnosti agregatov - 3. del: Postopek in izrazje
poenostavljenega petrografskega opisa
Tests for general properties of aggregates - Part 3: Procedure and terminology for
simplified petrographic description
Prüfverfahren für allgemeine Eigenschaften von Gesteinskörnungen - Teil 3:
Durchführung und Terminologie einer vereinfachten petrographischen Beschreibung
Essais pour déterm
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This document applies to coarse aggregate of sizes between 4 mm and 20 mm and to fine aggregate of size up to 2 mm.
NOTE 1 For coarse aggregates between 4 mm and 20 mm, the flow coefficient is linked with the percentage of crushed or broken surfaces of an aggregate and can therefore be used in association with the method specified in EN 933–5. Shape and surface texture characteristics also influence the result.
NOTE 2 Experience of this test has been generally limited to natural aggregates.
Examples of test data sheets are given in informative Annexes A and C.
Annex B (informative) contains precision data.
WARNING - The use of this part of EN 933 can involve hazardous materials, operations and equipment (such as dust, noise and heavy lifts). It does not purport to address all of the safety or environmental problems associated with its use. It is the responsibility of users of this document to take appropriate measures to ensure the safety and health of personnel and the environment prior to application of the standard, and fulfil statutory and regulatory requirements for this purpose.
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This document specifies the reference method, used for type testing and in case of dispute, for the determination of the percentages of crushed particles, totally crushed particles and totally rounded particles in a sample of natural coarse aggregate or all-in aggregate. Other methods can be used for other purposes, such as factory production control, provided that an appropriate working relationship with the reference method has been established.
NOTE 1 Examples of advanced test methods can be found in the Bibliography.
This document applies to gravel or to a mixture of natural coarse aggregates containing gravel. The test method specified is applicable to particle sizes between 4 mm and 63 mm.
NOTE 2 For coarse aggregate between 4 mm and 20 mm, the percentages of crushed surfaces are linked to the flow coefficient and can therefore be used in association with the test method specified in EN 933-6.
Subclause 7.1 specifies the procedure for test portions consisting of one particle size fraction and Subclause 7.2 specifies the procedure for test portions consisting of two or more particle size fractions.
Guidance for estimated mass of the test portion is given in informative Annex A.
Examples of application of the test procedure and an example of a test data sheet are given in informative Annexes B and C.
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This document specifies the reference method used for type testing and in cases of dispute for the determination of the particle density of filler by means of a pyknometer. For other purposes, in particular factory production control, other methods can be used provided that an appropriate working relationship with the reference method has been established.
NOTE Methods for determination of particle density of aggregates are specified in EN 1097 6.
Annexes are included that specify the procedures for calibration of the pyknometer (Annex A) and determination of the density of the liquid used to determine the particle density of the filler (Annex B).
Annex C (informative) contains precision data.
WARNING - The use of this part of EN 1097 can involve hazardous materials, operations and equipment (such as liquids, dust, noise and heavy lifts). It does not purport to address all of the safety or environmental problems associated with its use. It is the responsibility of users of this document to take appropriate measures to ensure the safety and health of personnel and the environment prior to application of the standard, and fulfil statutory and regulatory requirements for this purpose.
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This document specifies a basic procedure for the identification of the petrographic type of natural aggregates. Precise petrographic identification, of technical mineralogy and petrography for civil engineering or specific end uses, requires further examination and is therefore excluded from the scope of this document.
NOTE 1 A qualified geologist (petrographer), with experience of materials used in civil engineering and aware of the composition of the deposit, has sufficient skills to sample and name the rock.
NOTE 2 For precise petrographic identification, a non-exhaustive list of reference literature is given in the Bibliography.
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This document specifies the reference methods used for type testing and in case of dispute, for the determination of particle density and water absorption of normal weight and lightweight aggregates. Other methods can be used for other purposes, such as factory production control, provided that an appropriate working relationship with the reference method has been established. For convenience, some of these other methods are also described in this document.
The reference methods for normal weight aggregates are:
- a wire basket method for aggregate particles retained on the 31,5 mm sieve (Clause 7, except for railway ballast which uses Annex B);
- a pyknometer method for aggregate particles passing the 31,5 mm test sieve and retained on the 4 mm test sieve (Clause 8);
- a pyknometer method for aggregate particles passing the 4 mm test sieve and retained on the 0,063 mm test sieve (Clause 9).
In Clauses 7, 8 and 9, three different particle density parameters (oven-dried particle density, saturated and surface-dried particle density and apparent particle density) and water absorption are determined after a soaking period of 24 h. In Annex B, the oven-dried particle density parameter is determined after soaking in water to constant mass.
For aggregate particles passing the 31,5 mm test sieve and retained on the 4 mm test sieve, the wire basket method in Clause 7 can be used as an alternative to the pyknometer method in Clause 8.
NOTE 1 The wire basket method can also be used for single aggregate particles retained on the 63 mm sieve.
NOTE 2 The pyknometer method described in Clause 8 can be used as an alternative for aggregates passing the 4 mm sieve and retained on the 2 mm sieve.
The reference methods for lightweight aggregates are:
- a pyknometer method for aggregate particles passing the 31,5 mm test sieve and retained on the 4 mm test sieve (Annex C). Three different particle density parameters (oven-dried particle density, saturated and surface-dried particle density and apparent particle density) and water absorption are determined after pre-drying and a soaking period of 24 h;
- a method for aggregate particles passing the 4 mm test sieve, mixed with water and filtered in a Büchner funnel (Annex D). The three particle densities and water absorption are determined using a vacuum in the range of 50 mbar to 100 mbar for at least five minutes.
Three other methods for normal weight aggregates can be used to determine the pre-dried particle density, as specified in normative Annexes A and H:
- a wire basket method for aggregate particles passing the 63 mm test sieve and retained on the 31,5 mm test sieve (A.3);
- a pyknometer method for aggregate particles passing the 31,5 mm test sieve and retained on the 0,063 mm test sieve (A.4);
- a pyknometer method for aggregate particles passing the 31,5 mm test sieve, including the 0/0,063 mm size fraction (Annex H).
NOTE 3 If water absorption is less than about 1,5 %, the apparent particle density can be assessed using the pre-dried particle density method as defined in Annex A.
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The method in informative Annex F can be used to determine the particle density and water absorption of aggregates particles passing the 4 mm test sieve.
Data on the density of water at various temperatures is specified in normative Annex G.
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This document informs users about the source materials that have been considered in the development of the aggregate standards:
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- EN 13139 'Aggregates for mortar';
- EN 13242 'Aggregates for unbound and hydraulically bound materials for use in civil engineering work and road construction';
- EN 13383-1 'Armourstone - Part 1: Product standard';
- EN 13450 'Aggregates for railway ballast';
- EN 13055 'Lightweight aggregates';
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Annex A describes an optional method for the determination of the aggregate abrasion value (AAV).
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The sample shall be taken from normal run of production from the plant.
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