Slump Loss: A Single Rule for Ordinary Concrete

Abstract

Using superplasticizers and additions, engineers can deal with a great range of materials combinations to design concrete. But one can never be sure that all the possible compositions will perform as well on site. For example, even with the same cement, the same plasticizer and the same initial slump, these compositions may not have the same slump loss. The testing of 46 ordinary concretes made with different cement content, addition content (fly ash or limestone filler), superplasticizer content or effective water content has shown, with the materials tested, that slump loss depends essentially on water content.