A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The efficacy of accelerated test methods to evaluate Alkali Silica Reactivity of Recycled Concrete Aggregates
Highlights The accelerated mortar bar test can evaluate reactivity of Recycled Concrete Aggregate. Following the right procedures to crush the coarse recycled aggregates is paramount. The Concrete Microbar Test (CMBT) can evaluate reactivity of Recycled Concrete Aggregate. For CMBT, using 5–10mm aggregate produced higher expansion than 10–14mm aggregate.
Abstract The effectiveness of accelerated tests in evaluating the Alkali-Silica Reactivity of Recycled Concrete Aggregates was evaluated. The accelerated mortar bar test was found effective for evaluating potential alkali-reactivity when the test variables, such as crushing method and absorption, are carried out in a well-defined process. The method of crushing was found to have significant impact on the expansion. The Concrete Microbar Test (CMBT) provides good correlation to the expansion of concrete prisms incorporating Supplementary Cementing Materials when an expansion limit of 0.10% at 56days or 0.04% at 28days were used, based on the limited number of tests carried out here.
The efficacy of accelerated test methods to evaluate Alkali Silica Reactivity of Recycled Concrete Aggregates
Highlights The accelerated mortar bar test can evaluate reactivity of Recycled Concrete Aggregate. Following the right procedures to crush the coarse recycled aggregates is paramount. The Concrete Microbar Test (CMBT) can evaluate reactivity of Recycled Concrete Aggregate. For CMBT, using 5–10mm aggregate produced higher expansion than 10–14mm aggregate.
Abstract The effectiveness of accelerated tests in evaluating the Alkali-Silica Reactivity of Recycled Concrete Aggregates was evaluated. The accelerated mortar bar test was found effective for evaluating potential alkali-reactivity when the test variables, such as crushing method and absorption, are carried out in a well-defined process. The method of crushing was found to have significant impact on the expansion. The Concrete Microbar Test (CMBT) provides good correlation to the expansion of concrete prisms incorporating Supplementary Cementing Materials when an expansion limit of 0.10% at 56days or 0.04% at 28days were used, based on the limited number of tests carried out here.
The efficacy of accelerated test methods to evaluate Alkali Silica Reactivity of Recycled Concrete Aggregates
Johnson, Robert (author) / Shehata, Medhat H. (author)
Construction and Building Materials ; 112 ; 518-528
2016-02-22
11 pages
Article (Journal)
Electronic Resource
English
| British Library Online Contents | 2016
| British Library Online Contents | 2016
| British Library Online Contents | 2016