Resist chloride ion penetration Minimize cracking. 4 Concrete Mixture. Portland cement 500 lb/yd3 ; Fly ash 135 lb/yd3 ; Silica fume 40 lb/yd3 ; w/cm
Nano silica (also named as nanosilicon dioxide) is a kind of inorganic chemical material, commonly known as white carbon black. Because of its ultrafine nano scale ...
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