ISO 1920-2:2016

INTERNATIONAL ISO
STANDARD 1920-2
Second edition
2016-11-01
Testing of concrete —
Part 2:
Properties of fresh concrete
Essais du béton —
Partie 2: Caractéristiques du béton frais
Reference number
©
ISO 2016
© ISO 2016, Published in Switzerland
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Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Determination of consistence . 2
4.1 General . 2
4.2 Sampling . 2
4.3 Slump test . 2
4.3.1 Principle . 2
4.3.2 Apparatus . 2
4.3.3 Procedure . 3
4.3.4 Test result . . 4
4.3.5 Test report . 5
4.4 Vebe test . 5
4.4.1 Principle . 5
4.4.2 Apparatus . 5
4.4.3 Procedure . 8
4.4.4 Test result . . 8
4.4.5 Test report . 9
4.5 Degree of compactability test . 9
4.5.1 Principle . 9
4.5.2 Apparatus . 9
4.5.3 Procedure .10
4.5.4 Test results .11
4.5.5 Test report .11
4.6 Flow-table test .12
4.6.1 Principle .12
4.6.2 Apparatus .12
4.6.3 Procedure .14
4.6.4 Test results .15
4.6.5 Test report .15
4.7 Slump-flow test .16
4.7.1 General.16
4.7.2 Principle .16
4.7.3 Apparatus .16
4.7.4 Procedure .17
4.7.5 Test report .18
5 Determination of fresh density .19
5.1 Principle .19
5.2 Apparatus .19
5.3 Sampling .20
5.4 Procedure .20
5.4.1 Mass of the container .20
5.4.2 Filling the container .20
5.4.3 Compacting the concrete .20
5.4.4 Surface levelling . . .21
5.4.5 Determining the mass and volume of the container .21
5.5 Test result .21
5.6 Test report .21
6 Determination of air content .22
6.1 General .22
6.2 Sampling .22
6.3 Filling the container and compacting the concrete .22
6.3.1 Means of compaction .22
6.3.2 Filling the container .22
6.3.3 Compacting the concrete .23
6.4 Pressure-gauge method .23
6.4.1 Principle .23
6.4.2 Apparatus .23
6.4.3 Filling the container and compacting the concrete .25
6.4.4 Procedure .25
6.5 Water-column method .25
6.5.1 Principle .25
6.5.2 Apparatus .25
6.5.3 Filling the container and compacting the concrete .27
6.5.4 Procedure .27
6.6 Calculations and expression of results .28
6.6.1 Air content of the sample tested .28
6.6.2 Air content of the mortar fraction .28
6.7 Test report .28
7 Test report .
...