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High-porosity cement foams based on ternary blends of Portland cement, metakaolin and silica fume were prepared by the pre-foaming method. The effects of ternary blends on the early-age properties, air-void structure and hardened state properties of cement foams were investigated. The effect of metakaolin and silica fume on stabilizing air-voids was observed, and the collapse of cement foams during...
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