What is it about?
The paper discusses the effect of the specimen shape and size on the result of compressive strength tests performed on polymer cement concrete (PCC). The shapes of tested specimens included cylinders and cubes of dimensions as recommended in EN-206 when determining the compressive strength class of cement concrete. Moreover, apart from cubes of standardized size of 150 mm, the research included tests of cubes of size 71 mm and 100 mm. The tests were performed on PCC with two different polymer aqueous dispersions: styrene-acrylic copolymer and carboxylated styrene-butadiene latex. As a reference, the tests were performed on the (polymer-less) ordinary concrete (OC). The results showed that the general rule – the smaller is the specimen, the higher values of strength it obtains – cannot be directly applied to PCC. Also the relation between compressive strength measured on cylinder and cube specimens (both for OC and PCC) did not show the conformity with reference ratios for OC.
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Why is it important?
It shows an effect of of concrete specimens shape (cube or cylindrical) and size (of cubes) on the polymer-cement concrete compressive strength value. The effect turned out to be a bit different than in case of ordinary (polymer-less) concrete.
Perspectives
The effect of of concrete specimens shape (cube or cylindrical) and size (of cubes) on the polymer-cement concrete compressive strength value turned out to be a bit different than in case of ordinary concrete.
Doctor Joanna Julia Sokołowska
Politechnika Warszawska
Read the Original
This page is a summary of: The Influence of Specimen Shape and Size on the PCC Compressive Strength Values, January 2018, Springer Science + Business Media,
DOI: 10.1007/978-3-319-78175-4_33.
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