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Evaluating the effects of nanosilica on the material properties of lightweight and ultra-lightweight concrete using image-based approaches
2020
Construction and Building Materials
h i g h l i g h t s Lightweight aggregate concretes (LWACs) with a targeted density of 850 kg/m 3, and 450 kg/m 3 were developed. Cement was replaced with 1, 2, 5 and 10% nanosilica (by mass of cement). Shrinkage, transport, mechanical and microstructural (2D and 3D) properties of concretes were evaluated. Nanosilica has a beneficial effect in improving the mechanical and transport properties of concretes. Nanosilica significantly improves the pore characteristics of lightweight concretes. a b
doi:10.1016/j.conbuildmat.2020.120241
fatcat:ujlhw4psp5frpcrn6whpgyoisu