Authors : Md. Zihad Hossain; Mehrabuzzaman; Tanveer Tausif; Tanvir Alam

Volume/Issue : Volume 11 - 2026, Issue 9 - September

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Google Scholar : https://tinyurl.com/36rkt2fm

DOI : https://doi.org/10.38124/ijisrt/26sep1178

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Abstract : Abrams’ law holds that, at a given age, the compressive strength of a cementitious composite falls monotonically as the water-to-cement (w/c) ratio increases. Whether it continues to hold when the mixing water is delivered hot, a routine occurrence in tropical construction and in accelerated precasting, has not been established for mortar at the early ages that govern formwork striking and handling. We cast seventy-two 50 mm cubes of 1:3 ordinary Portland cement mortar from 24 independent batches, spanning eight w/c ratios (0.50–0.64 in 0.02 steps) and three mixing-water temperatures (25, 50 and 75 °C), and tested in compression at 24, 48 and 72 h.

Keywords : Abrams’ Law; Cement Mortar; Mixing-Water Temperature; Early-Age Compressive Strength; Heteroscedasticity; Batch Pseudo-Replication.

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