Abstract
AbstractThis article discusses the microstructural properties of concrete incorporating different mineral admixtures such as silica fume (SF), fly ash (FA), metakaolin (MK) and ground granulated blast furnace slag (GGBFS). The microstructure of the concrete mainly depends upon the inter transition zone (ITZ) and the bond between cement paste and aggregates, which effects the mechanical and long-term properties of concrete. However, appropriate addition of mineral admixture in concrete helps in improvement of their microstructure of the concrete. The research findings of various studies revealed that the addition of mineral admixtures in the concrete act as a microfiller and densify their microstructure to improve their mechanical and durability properties. Moreover, mineral admixtures also contribute to pore blocking of concrete to intensify the resistance to water, chloride and sulphate attacks. The mineral admixtures play a vital role in concrete to strengthen their microstructural properties.KeywordsMicrostructureCement pasteInterfacial transition zoneMineral admixturesMechanical properties
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