粗细集料的混合级配对混凝土和易性的影响

粗细集料的混合级配对混凝土和易性的影响

摘要：粗细集料作为混凝土的重要组成部分，其混合级配对混凝

土拌合物的和易性具有重大影响。如何使用现有粗细集料，正确选

择粗细集料的掺配比例，优化混凝土配合比设计，配制出良好和易

性的混凝土，对混凝土配合比设计及保证施工质量和效率具有重要

意义。

关键词：粗细集料掺配比例混凝土配合比和易性

abstract: the thickness of the aggregate as an important part

of the concrete, the workability of the mixed gradation

concrete mixture has a significant impact on the concrete

mixture. how to use the existing aggregate thickness, the

correct choice of the aggregate thickness blending ratio,

optimized concrete mix design, prepared the good workability

of concrete mix, it has an important significance on the

design and ensure quality and efficiency.key words: sets the

thickness of material; blending proportion; concrete mix

ratio; workability

1 概述

当前我国砂资源日益匮乏，尤其是级配良好的河砂，几近枯竭，

砂质量严重下降。如何使用现有粗细集料，通过正确选择粗细集料