SR EN 1367-4:2008

Tests for thermal and weathering properties of aggregates - Part 4: Determination of drying shrinkage

This standard describes the reference method used for type testing and in cases of dispute, for determining the effect of aggregates on the drying shrinkage of concrete. For other purposes, in particular factory production control, other methods may be used provided an appropriate working relationship with the reference method has been established. This standard is based on the testing of concretes of fixed mix proportions and aggregates of 20 mm maximum size. NOTE 1 Guidance on the use of larger size is given in Annex A. Precision data is not available for variations in size and for variations in the water content of the test concrete. NOTE 2 In those cases where the drying shrinkage of a source of coarse aggregate only or a source of fine aggregate (sand) only are required, the other component to be used should be, respectively, a fine or coarse aggregate of known low shrinkage. NOTE 3 Aggregates with high water demand and/or porosity may in a concrete with a fixed water content result in a mix with insufficient workability to allow full compaction of the test specimens. Thi

27.24

Status : Valid
Approval date : 8/29/2008
Publish date : 8/31/2008
Number of pages : 16
ICS : 91.100.15 Mineral materials and products
Technical Committee : 321 - Concrete and related products

Relations with other standards: