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3、提高气泡质量 Enhancing the quality of entrained air
(1)优化混凝土的气孔结构 (optimizing the air-void system)
a 硬化引气混凝土的气孔结构参数 parameters of the air-void system in hardened concrete

b 硬化引气混凝土的气孔分布 air-void distribution of harden concrete

(2)引入更多细小气泡,减小硬化混凝土的强度损失 Compressive strength of concrete

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