Abstract

An investigation was carried out to compare the performance and, in particular the repeatability and sensitivity of assessment of workability and washout resistance of underwater concrete using two test methods based on different principles. The first method is the plunge test (CRD C61), used in North America, and the second is the new spray test (MC-1), developed at the University of Paisley. The sensitivity of the test results to variation of dosage of the anti-washout admixture and of superplasticizer, was investigated.

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