THE SLUMP FLOW TEST FOR HIGH-WORKABILITY CONCRETE

Despite their inherent limitations, single-point workability tests con tinue to be used for the specification and quality control of concrete . The development of stable, high-workability mixes with a collapsed s lump has led to the use of the flow test, more popular in Europe, and the slump flow test, used extensively in Asia. Results are given from a laboratory programme in which these two tests, and slump, were used on a range of concrete mixes. A good correlation between the flow and slump flow values was obtained. It is argued that the tests are theref ore of equal value in assessing concrete properties, and hence the sim pler and more convenient slump flow test is to be preferred. (C) 1998 Elsevier Science Ltd.