Australian industry alkali silica reactivity management program

The prevention of concrete structures from alkali silica reactivity (ASR) is an important part of many measures required to ensure satisfactory design life of concrete structures. Earlier research by Stanton (1940) followed by excellent research by CSIRO and Queensland Main Roads in the 1980’s and 1990’s have afforded Australian engineers better knowledge and tools to specify and build durable infrastructures in Australia. From the suppliers’ perspective, the Cement Concrete & Aggregates Australia (CCAA) has begun a major program to classify a large range of Australian aggregates on their potential reactivity based on an Accelerated Mortar Bar Test (AMBT) and a Concrete Prism Test (CPT). The program will be expanded to develop effective mitigating measures to the use of ASR-susceptible aggregates. In this paper, the choice of the AMBT and CPT method and their relative importance and relationships with petrography and field performance will be discussed. It also seeks opportunity for the industry to work collaboratively with infrastructure authorities in consolidating and build up a database on the performance of Australian aggregates leading to our ability to manage and control ASR-related issues in all Australian concrete structures.

• Authors:
  • Thomas, W A
  • Rocker, P
  • Cheney, K
  • Sirivivatnanon, V
• Conference:
  • Concrete Institute of Australia Conference, 26th, 2013, Gold Coast, Queensland, Australia
• Publication Date: 2013-10

Language

• English

Media Info

• Pagination: 7p
• Monograph Title: Concrete 2013: understanding concrete: 16-18 October 2013, Gold Coast, Queensland, Australia

Subject/Index Terms

• TRT Terms: Aggregates; Alkali silica reactions; Concrete; Data banks; Databases; Deterioration; Test procedures
• Uncontrolled Terms: Materials technology (asphalt/bitumen/concrete)
• Geographic Terms: Australia
• ATRI Terms: Aggregate; Alkali silica reaction; Concrete; Database; Deterioration; Test method
• Subject Areas: Geotechnology; I32: Concrete;

Filing Info

• Accession Number: 01514719
• Record Type: Publication
• Source Agency: ARRB
• Files: ITRD, ATRI
• Created Date: Feb 20 2014 10:14AM