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BS ISO 1920-8:2009

Current
Current

The latest, up-to-date edition.

Testing of concrete Determination of the drying shrinkage of concrete for samples prepared in the field or in the laboratory
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

11-30-2009

Publisher

British Standards Institution

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Apparatus
6 Test samples and specimens
7 Procedure
8 Calculation and expression of results
9 Test report
10 Precision for laboratory-prepared specimens
Annex A (informative) - A suitable horizontal length
                        comparator

Describes a method for determining the length changes of concrete specimens due to drying in air, and the method of preparing and curing the concrete specimens to be tested.

This part of ISO1920 specifies a method for determining the length changes of concrete specimens due to drying in air, and the method of preparing and curing the concrete specimens to be tested.

It is applicable for the testing of specimens prepared in the laboratory or in the field, in which the maximum nominal size of aggregate in the concrete, in accordance with ISO6274, does not exceed 25mm.

The precision statement in Clause10 does not apply to specimens that have had non-standard initial curing (normally field-prepared specimens). In addition, this part of ISO1920 requires that field-prepared specimens be marked, recorded and reported as such.

NOTE1 This test method is not always suitable for very low slump concrete (less than 20mm), primarily due to the difficulties in obtaining adequate compaction. Provided adequate compaction is obtained, the method is applicable.

NOTE2 The method is specifically developed for measurement of drying shrinkage of concrete, but it is capable of adaptation for measurement of length changes of specimens subjected to a variety of environmental conditions.

Committee
B/517/1
DevelopmentNote
Supersedes 07/30168470 DC. (12/2009)
DocumentType
Standard
Pages
26
PublisherName
British Standards Institution
Status
Current
Supersedes

Standards Relationship
ISO 1920-8:2009 Identical

BS PAS 8820(2016) : 2016 CONSTRUCTION MATERIALS - ALKALI-ACTIVATED CEMENTITIOUS MATERIAL AND CONCRETE - SPECIFICATION

ISO 1920-1:2004 Testing of concrete — Part 1: Sampling of fresh concrete
ISO 6274:1982 Concrete Sieve analysis of aggregates
ISO 1920-3:2004 Testing of concrete Part 3: Making and curing test specimens
ISO 1920-2:2016 Testing of concrete Part 2: Properties of fresh concrete

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PDF - English
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