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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Mass Concrete Pour Techniques for the Mat Foundation of 1100 Alakea Plaza
Author(s): A. R. Dar
Publication: Special Publication
Appears on pages(s): 187-202
Keywords: concretes; construction joints; heat of hydration; joints (junctions); mass concrete; mat foundations; thermal gradient; thermocouples; Construction
Abstract:In large concrete pours, the heat of hydration, which continues to build for several days, is a major cause of concern for structural engineers. As the surface of concrete cools off, a thermal gradient is formed across the concrete section which can cause the concrete to crack. This paper verifies that by keeping concrete warm and preventing heat from escaping rapidly, the temperature difference within the mass can be minimized, thus reducing the potential for thermal cracking. Use of this technique made possible the largest monolithic mat foundation pour in Hawaii, without construction joints and without artificial cooling of concrete.
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