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矿物掺合料对混凝土早期开裂和塑性收缩性能的影响研究 被引量:3

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摘要 针对混凝土早期开裂的现象,为了促进矿物掺合料的工程应用,优化混凝土配合比,减少混凝土早期裂缝,试验采用"弯起钢板约束的平板试验装置"研究了粉煤灰、矿渣两种矿物掺合料对混凝土早期开裂性、泌水性和塑性收缩变形的影响。结果表明:掺入粉煤灰和矿渣均可抑制裂缝的出现,试验条件下粉煤灰掺量小于20%,矿渣掺量为40%时,可显著降低混凝土的塑性收缩。
作者 李贞
出处 《江西建材》 2017年第7期5-6,共2页 Jiangxi Building Materials
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