BS EN 1744-1 PDF

This standard specifies procedures for the chemical analysis of aggregates. It specifies the reference procedures and, in certain cases, an alternative method which can be considered as giving equivalent results. Unless otherwise stated, the test methods specified in this standard may be used for factory production control, for audit tests or for type tests. This standard describes the reference methods used for type testing and in cases of dispute and alternatives methods for chemical analyses of aggregates. For the purpose of type testing and in cases of dispute only the reference method should be used.

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BS EN. Tests for chemical properties of aggregates. Part 1: Chemical analysis. ICS National foreword. It supersedes BS EN , which is withdrawn.

The start and finish of text introduced or altered by amendment is indicated in the text by tags. For example, text altered by CEN amendment A1 is indicated by! A list of organizations represented on this subcommittee can be obtained on request to its secretary.

This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. ISBN 0 4. Implementation of CEN amendment A November Supersedes EN English Version. Tests for chemical properties of aggregates - Part 1: Chemical analysis. All rights of exploitation in any form and by any means reserved worldwide for CEN national Members.

Normative references. Terms and definitions. Reagents for determination of water-soluble chloride salts using the Volhard method Clause 7. Reagents for determination of water-soluble chloride salts by potentiometry Clause 8. Reagent for factory production control determination of water-soluble chloride salts using the Mohr method Clause 9.

Reagents for determination of water-soluble sulfates Clause Reagents for determination of total sulfur content Clause Reagents for determination of acid soluble sulfide content Clause Reagents for determination of lightweight contaminators see Reagents for determination of potential presence of humus see Reagents for determination of fulvo acid content see Reagents for determination of free lime by complexometry see Reagent for determination of free lime by conductometry see Reagents for determination of free lime by acidimetry see Reagent for the determination of the expansion of steel slag see Additional apparatus required for acidimetric determination of free lime see Additional apparatus required for the determination of CaO in steel slag by X-ray diffraction see.

Additional apparatus required for the determination of dicalcium silicate disintegration of air-cooled blast-furnace slag see Additional apparatus required for determination of the volume expansion of steel slag see General requirements for testing.

Number of tests. Repeatability and reproducibility. Expression of mass, volume, factors and results. Drying of materials. Ignitions of precipitates. Check for the absence of chloride ions silver nitrate test.

Determination of water-soluble chloride salts using the Volhard method Reference method. Preparation of test specimens. Preparation of extracts. Procedure for the determination of the chloride content of the extracts. Calculation and expression of results. Determination of water-soluble chloride salts by potentiometry Alternative method.

Sampling, preparation of test specimens and extracts. Determination of water-soluble chloride salts using the Mohr method Alternative method. Preparation of test portion. Determination of water-soluble sulfates. Determination of water soluble sulfates in natural and manufactured aggregates. Procedure for the determination of the sulfate content of the extracts. Determination of water soluble sulfates in recycled aggregates.

Preparation of test specimen. Procedure for the determination of the sulfate content of the extracts, using a spectrophotometer. Determination of total sulfur content. Determination of total sulfur content by acid digestion Reference method. Determination of total sulfur content by high temperature combustion Alternative method. Determination of acid soluble sulfates.

Determination of acid soluble sulfides. Determination of components affecting the surface finish of concrete. Examination for the presence of reactive iron sulfide particles. Determination of lightweight contaminators. Determination of organic components affecting the setting and the hardening of cement.

Determination of potential presence of humus. Expression of results. Determination of fulvo acid content. Determination of organic contaminators by mortar method. Preparation of test portions. Preliminary treatment of test portions. Mix quantities.

Mixing procedure. Measurement of stiffening time. Compressive strength of hardened mortar. Determination of water solubility. Determination of water solubility of aggregate, excluding filler. Extraction of soluble components. Determination of water solubility of filler. Extraction of soluble component. Determination of loss on ignition. Sampling and preparation of test portion.

Procedure for the determination of loss on ignition. Determination of free lime in steel slag. Determination of free lime by complexometry Reference method. Determination of free lime by conductometry Alternative method. Evaluation and expression of results. Determination of free lime by acidimetry Alternative method.

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BS EN 1744-1

Latest version of document. Specifies reference procedures, and in certain cases an alternative method, for the chemical analysis of aggregates. Supersedes BS EN Their committees work with the manufacturing and service industries, government, businesses and consumers to facilitate the production of British, European and International standards.

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BS EN 1744-1:2009 Tests for chemical properties of aggregates. Chemical analysis (+A1:2012)

Aggregates, Chemical properties, Cement and concrete technology, Chemical analysis and testing, Quantitative analysis, Determination of content, Chlorides, Sulfur, Sulfides, Sulfates, Contaminants, Humus, Solubility, Lime, Slags, Steels, Dimensional changes, Deformation, Expansion deformation , Surface properties, Iron inorganic compounds, Residue-on-ignition determination, Solubility test methods, Blast-furnace slag aggregates, Volumetric analysis, Potentiometric methods, Precipitation methods, Test specimens, Specimen preparation, Test equipment, Reproducibility, Mathematical calculations Describes procedures for the chemical analysis of aggregates. Back to Results. Add to Cart Remove from Cart. File Size

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