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Crack minimization model for hot weather concreting

Journal article published in 2006 by M. H. Baluch, M. K. Rahman ORCID, A. H. Al Gadhib, A. Raza, S. Zafar
This paper is available in a repository.
This paper is available in a repository.

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Preprint: policy unknown
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Postprint: policy unknown
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Published version: policy unknown

Abstract

ABSTRACT This paper addresses fundamental ,issues of influence ,of elevated ,temperature and moderate,wind ,speed on mass ,transport properties of concrete ,including moisture diffusivity D and ,convective ,moisture ,transfer coefficient hf . Using a combined experimental–numerical approach, the influence of varying temperature T(in the range of35°C–70°C) and wind speed ω (of maximum intensity 22 km/h) on moisture loss, moisture diffusivity, and convective transfer coefficient in concretes of three water– cement ratios is investigated. Based on this data, certain invariant functional forms are postulated for variables of interest including free shrinkage, moisture loss, average moisture diffusivity, wind speed, ambient temperature, and water–cement ratio, leading