BS 1881-129:2011

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Apparatus
5 Calibration of the container
6 Sampling
7 Preparing the sample for test
8 Procedure
9 Calculation and expression of results
10 Test report
11 Precision
Bibliography

Includes the method by which the density of semi-dry, partially compacted concrete can be obtained for the purpose of determining the quantity of materials necessary to generate a volume of 1 cubic metre, also known as the "yield".

This part of this British Standard contains the method by which the density of semi-dry, partially compacted concrete can be obtained for the purpose of determining the quantity of materials necessary to generate a volume of 1 cubic metre, also known as the “yield??. The method applies to plain concrete made with aggregate having a nominal maximum aggregate size, D_max of 40mm or less but not to concrete with a slump of more than 10mm when tested in accordance with BSEN12350‑2 .

NOTE1 The method for the determination of density of concrete with a slump of more than 10mm is described in BSEN12350‑6 .

NOTE2 This method is not applicable to concrete designed to conform to the requirements of the Specification for Highway Works [1] which describes a specific method for to be applied to hydraulically bound materials intended for use in highway pavements.