基于正交试验的机制砂自密实轻骨料混凝土配合比设计

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发布时间：2020-01-06 00:00:00

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基于正交试验的机制砂自密实轻骨料混凝土配合比设计

Mix Proportion Design of Machine-made Sand Self-compacting Lightweight Aggregate Concrete Based on Orthogonal Test

2021年第12期

机制砂；自密实；轻骨料混凝土；配合比设计；工作性；力学性能

Machine-made sand; Self-compacting; Lightweight aggregate concrete; Mix proportion design; Workability; Mechanical property

2021年第12期

10.19761/j.1000-4637.2021.12.084.06

陕西省自然科学基础研究计划项目（2019JQ-480、2021JM-392）。

张淑云，周杰，张政，秦卿

西安科技大学建筑与土木工程学院，陕西西安710054

张淑云，周杰，张政，秦卿

张淑云,周杰,张政,等.基于正交试验的机制砂自密实轻骨料混凝土配合比设计[J].混凝土与水泥制品,2021(12):84-88,93.

ZHANG S Y,ZHOU J,ZHANG Z,et al.Mix Proportion Design of Machine-made Sand Self-compacting Lightweight Aggregate Concrete Based on Orthogonal Test[J].China Concrete and Cement Products,2021(12):84-88,93.

浏览量:

1000

摘要：采用固定砂石体积法和改进的全计算法，设计了C40机制砂自密实轻骨料混凝土的配合比，并通过正交试验分析了机制砂自密实轻骨料混凝土的抗压强度和工作性。结果表明：当水胶比为0.37、体积砂率为51%、Ⅰ级粉煤灰替代率为20%、硅灰替代率为4%、聚羧酸高性能减水剂掺量为1%时，能够满足C40机制砂自密实轻骨料混凝土的相关性能要求。 Abstract: Using the fixed gravel volume method and the improved total calculation algorithm, the mix proportion of C40 machine-made sand self-compacting lightweight aggregate concrete was designed, and the compressive strength and workability of machine-made sand self-compacting lightweight aggregate concrete were analyzed through orthogonal test. The results show that when the water-binder ratio is 0.37, the volume sand ratio is 51%, the substitution rate of grade Ⅰ fly ash is 20%, the substitution rate of silica fume is 4%, and the content of polycarboxylic acid high-performance water-reducing agent is 1%, C40 machine-made sand self-compacting lightweight aggregate concrete can meet the relevant performance requirements.

英文名 : Mix Proportion Design of Machine-made Sand Self-compacting Lightweight Aggregate Concrete Based on Orthogonal Test

刊期 : 2021年第12期

关键词 : 机制砂；自密实；轻骨料混凝土；配合比设计；工作性；力学性能

Key words : Machine-made sand; Self-compacting; Lightweight aggregate concrete; Mix proportion design; Workability; Mechanical property

刊期 : 2021年第12期

DOI : 10.19761/j.1000-4637.2021.12.084.06

文章编号 :

基金项目 : 陕西省自然科学基础研究计划项目（2019JQ-480、2021JM-392）。

作者 : 张淑云，周杰，张政，秦卿

单位 : 西安科技大学建筑与土木工程学院，陕西西安710054

张淑云，周杰，张政，秦卿

张淑云,周杰,张政,等.基于正交试验的机制砂自密实轻骨料混凝土配合比设计[J].混凝土与水泥制品,2021(12):84-88,93.

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参考文献

引用本文

Abstract: Using the fixed gravel volume method and the improved total calculation algorithm, the mix proportion of C40 machine-made sand self-compacting lightweight aggregate concrete was designed, and the compressive strength and workability of machine-made sand self-compacting lightweight aggregate concrete were analyzed through orthogonal test. The results show that when the water-binder ratio is 0.37, the volume sand ratio is 51%, the substitution rate of grade Ⅰ fly ash is 20%, the substitution rate of silica fume is 4%, and the content of polycarboxylic acid high-performance water-reducing agent is 1%, C40 machine-made sand self-compacting lightweight aggregate concrete can meet the relevant performance requirements.

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基于正交试验的机制砂自密实轻骨料混凝土配合比设计

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