Development of High-Strength Lightweight Concrete

ABOUT THE 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.

International Concrete Abstracts Portal

  


Title: Development of High-Strength Lightweight Concrete

Author(s): Min-Hong Zhang and Odd E. GjorvI

Publication: Special Publication

Volume: 121

Issue:

Appears on pages(s): 667-682

Keywords: compressive strength; density (mass/volume); high strenght concretes; lightweight aggregate concretes; lightweight aggregates; porosity; General

Date: 11/1/1990

Abstract:
Pore structure, density, and strenght may vary within a wide range for different types of lightweight aggregate. Hence, not all types of lightweight aggregate are suitable for production of high-strength concrete. In the present work, the significance of various lightweight aggregates on the concrete strenght and density was studied. Twenty-eight-day compressive strengths up to 102 MPa, corresponding to a density of 1865 kg/m3, were obtained. The type of lightweight aggregate appears to be the primary factor controlling both the density and the strength. For high-strength lightweight concrete, it is difficult to predict the 28-day strengths from early strengths because of the influence of the aggregate.