Use of Secondary Crystallization and Fly Ash in Waterproofing Materials to Increase Concrete Resistance to Aggressive Gases and Liquids

<div>(a) The SEM shot of the concrete treated with coat after 18 months in liquid NaCl environment; (b) a detail of the formed Friedel’s salt crystals (3CaO·Al<sub>2</sub>O<sub>3</sub>·CaCl<sub>2</sub>·10H<sub>2</sub>O).</div>

Advances in Civil Engineering

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Figure 10

Figure 10: Use of Secondary Crystallization and Fly Ash in Waterproofing Materials to Increase Concrete Resistance to Aggressive Gases and Liquids 