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粉煤灰对混凝土干缩的影响 被引量:1

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摘要 研究了粉煤灰掺量和水胶比等因素对混凝土干燥收缩的影响规律。结果表明:随着粉煤灰掺量的增多,混凝土的干燥收缩率均降低,且降低的幅度逐渐减小;基准混凝土28d后的干燥收缩率增长缓慢,而粉煤灰混凝土28d后的干燥收缩率仍有一定幅度的增长;随着水胶比的降低,混凝土干燥收缩率明显减小。
出处 《低温建筑技术》 2010年第4期23-24,共2页 Low Temperature Architecture Technology
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