Abstract
The size of the nano materials varies from 1nm to 100nm depending on the types, according to ASTM. Due to excellent mechanical properties, nano materials find wide application in construction industry over conventional materials. The inclusion of nanoparticles in cement composites reduces micro pores by filler effect, forms dense cement matrix, thus prevents micro crack propagation. In addition, it contributes to strength by the secondary reactions with cement composite. This review papers summarizes the properties of various nanomaterials based on mechanical, chemical deterioration, physical deterioration, durability and other properties of cement-based materials. Additionally, research needs are identified based on the gaps in the current literature on cement-based materials using nano materials.
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