Lightweight Concrete Bridges: Recent Data Reveal New Opportunities-Reference-Cited by-同舟云学术

Lightweight Concrete Bridges: Recent Data Reveal New Opportunities

Published:2016 Issue: Volume: Page:
ISSN:2221-3791
Container-title:IABSE Congress, Stockholm 2016: Challenges in Design and Construction of an Innovative and Sustainable Built Environment
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Author:

Castrodale Reid Wilson¹

Affiliation:

1. Castrodale Engineering Consultants, Concord, NC, USA

Abstract

<p>Recent tests and production experience reveal that structural lightweight concrete made with lightweight aggregates manufactured in the USA has potential benefits for the design and construction of bridges. Lightweight aggregates and their properties are briefly introduced; then engineering properties of lightweight concrete made with these aggregates are presented using recent data. Material properties discussed include density, design compressive strength (up to 70 MPa), tensile strength (approximately equal to strengths expected for normal weight concrete), modulus of elasticity, creep and shrinkage (comparable to normal weight concrete), durability (including both reduced permeability and cracking tendency), ductility, and thermal properties (possibly beneficial for mass concrete). Several bridges that used lightweight concrete are highlighted, showing that the material provides an economical and durable solution for bridges.</p>

Publisher

International Association for Bridge and Structural Engineering (IABSE)

Reference22 articles.

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4. ASTM International. Standard test method for determining density of structural lightweight concrete. West Conshohocken, Pa.: ASTM;2005. ASTM C567-05: 3 p.

5. Liles P, Holland RB. High strength lightweight concrete for use in precast, prestressed concrete bridge girders in Georgia. HPC Bridge Views. 2010; 61: 1-3.