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HomeNanotechnologyAnalysis on the sulfate resistance of cement-based supplies incorporating dolomite powder: Fullerenes,...

Analysis on the sulfate resistance of cement-based supplies incorporating dolomite powder: Fullerenes, Nanotubes and Carbon Nanostructures: Vol 0, No 0


Summary

The consequences of dolomite powder on the sulfate resistance of cement-based supplies with water-binder ratio (w/b) of 0.55 and 0.36 had been investigated on this manuscript. Scanning electron microscopy (SEM), mercury intrusion porosimetry (MIP) and strain testing machine had been used to find out the obvious morphology, micro-morphology, mass improve fee, flexural power and compressive power of cement-based supplies containing dolomite powder. The sulfate resistance of mortars was improved with growing dolomite powder dosage. Usually, the flexural power and compressive power of mortars in Na2SO4 answer had been larger than these in water. Inside 150 days of immersion, the corrosion resistance coefficient and compressive corrosion resistance coefficient of mortars elevated with growing dolomite powder dosage. The pore construction of cement-based supplies grew to become extra compact with the addition of dolomite powder. Accordingly, the sulfate resistance was improved by controlling the dynamics stage as a consequence of the truth that the pore construction of cement-based supplies was refined with the addition of dolomite powder. The 150-day compressive corrosion resistance coefficients of mortars with a w/b of 0.55 within the case of dolomite powder at 0 and 30 wt% substitute ranges had been lower than 1, suggesting that long-term immersion in sulfate answer elevated the deterioration fee of cement-based supplies.

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