The effect of alkali-silica reaction (ASR) on the mechanical properties and durability of concretes containing GGBFS

Document Type : Research Paper

Authors

Buali Sina University

10.22124/jcr.2024.25328.1627

Abstract

The damaging internal process known as the alkali silica reaction (ASR) can cause cracks in concrete. Using supplementary cementitious materials (SCM) has been suggested as a way of reducing and eliminating ASR's harmful effects. On the other hand, researchers have examined a wide range of alternatives in an attempt to find a means of reducing cement usage and, as a result, the environmental harm that it causes. Ground granulated blast-furnace slag (GGBFS), an industrial waste, has demonstrated good performance as a cement substitute and a means of reducing ASR. It is crucial to conduct studies on how slag affects concrete's destructive elements, such as ASR, as well as the concrete's mechanical properties.

Moreover, there are numerous conventional tests that may be used to assess the degree of ASR in concrete, but they often produce unreliable and inaccurate results or are so time-consuming that they are essentially useless in projects that must be completed quickly. It may be feasible to determine ASR development by looking at changes in the mechanical properties of concrete. The new approach put forward in this study is based on analyzing changes in the electrical resistivity, compressive strength, tensile strength, and flexural strength of mortar and concrete samples.

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Concrete Research

Articles in Press, Accepted Manuscript
Available Online from 29 April 2024

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