Insulating Concretes

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Title: Insulating Concretes

Author(s): R. C. Valore, Jr.

Publication: Journal Proceedings

Volume: 53

Issue: 11

Appears on pages(s): 509-532

Keywords: no keywords

Date: 11/1/1956

Abstract:
Mix proportioning, mixing methods, and physical properties are reviewed for insulating concretes of the types in which structural properties are second-ary to thermal insulation value. Densities for four compressive strength ranges are given. Thermal conductivity data from different sources are com-pared as a function of density. Data are reviewed on other strength properties elasticity, water absorption, frost resistance, drying shrinkage, and thermal expansion. Properties often considered in relation to insulating concretes arc fire resistance, sound insulation, and sound absorption. Data are given on these properties for lightweight aggregate concretes generally and for concretes used primarily for thermal insulation. The sections on mechanics of sound insulation and absorption are intended to dispel some misconceptions on these subjects in relation to other physical properties of concrete.