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Article: Bond characteristics of plain and deformed bars in lightweight pumice concrete.
- Article from:
- Construction and Building Materials
- Article date:
- July 1, 2008
- Author:
CopyrightCOPYRIGHT 2008 Reed Business Information, Inc. (US). This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Abstract
An investigation is conducted to determine the bond characteristics of plain and deformed reinforcing bars in lightweight volcanic pumice concrete (VPC) and normal concrete (NC). VPC and NC are manufactured by incorporating crushed lightweight pumice and gravel aggregates, respectively. Bond tests are conducted on 112 pullout specimens to study the influence of type of concrete (NC or VPC), type of reinforcing bars (plain or deformed), length of embedment ([l.sub.e]) and age/strength of concrete on bond strength and failure modes. The load-slip responses, failure modes and bond strengths of VPC and NC are compared at various ages ranging from 1 to 28 ...
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