透水混凝土的力学性能优化及影响因素研究_《混凝土与水泥制品》杂志社

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发布时间：2020-01-06 00:00:00

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透水混凝土的力学性能优化及影响因素研究

Study on Mechanical Performance Optimization and Influencing Factors of Pervious Concrete

2022年第12期

灰骨比；骨料级配；粉煤灰掺量；透水混凝土；力学性能；透水性能

Cement-aggregate ratio; Aggregate gradation; Fly ash content; Pervious concrete; Mechanical property; Water permeability

2022年第12期

10.19761/j.1000-4637.2022.12.097.04

国家重点研发计划专项项目（2020YFA0714300）。

张杨1，2，郑扬1，2，黄九达1，2

1.苏交科集团股份有限公司，江苏南京211112；2.新型道路材料国家工程研究中心，江苏南京211112

张杨1，2，郑扬1，2，黄九达1，2

张杨,郑扬,黄九达.透水混凝土的力学性能优化及影响因素研究[J].混凝土与水泥制品,2022(12):97-100.

ZHANG Y,ZHENG Y,HUANG J D.Study on Mechanical Performance Optimization and Influencing Factors of Pervious Concrete[J].China Concrete and Cement Products,2022(12):97-100.

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摘要：研究了灰骨比、骨料级配和粉煤灰掺量对透水混凝土力学性能和透水性能的影响。结果表明：随着灰骨比的增大，透水混凝土的抗压强度先增大后减小，空心率总体呈降低趋势，最佳灰骨比为0.22；与单一粒径骨料相比，采用级配骨料可有效提高透水混凝土的抗压强度，当骨料级配为m9.50~13.20 mm∶m4.75~9.50 mm∶m2.36~4.75 mm=30∶50∶20时，透水混凝土的抗压强度和空心率相对最佳；随着粉煤灰掺量的增加，透水混凝土空心率和透水系数均呈下降趋势，抗压强度和抗折强度均先增大后减小，最佳粉煤灰掺量为20%。 Abstract: The effects of the cement-aggregate ratio, aggregate gradation and fly ash content on the mechanical properties and water permeability of pervious concrete were studied. The results show that the compressive strength of pervious concrete first increases and then decreases with the increase of the cement-aggregate ratio, and the hollow ratio generally decreases, and the optimum cement-aggregate ratio is 0.22. Compared with single size aggregate, the use of graded aggregate can effectively improve the compressive strength of pervious concrete. When the aggregate gradation is m9.50~13.20 mm∶m4.75~9.50 mm∶m2.36~4.75 mm=30∶50∶20, the compressive strength and hollow ratio of pervious concrete are relatively optimal. With the increase of fly ash content, the hollow ratio and permeability coefficient of pervious concrete show a downward trend, and the compressive strength and flexural strength increase first and then decrease, and the optimal fly ash content is 20%.

英文名 : Study on Mechanical Performance Optimization and Influencing Factors of Pervious Concrete

刊期 : 2022年第12期

关键词 : 灰骨比；骨料级配；粉煤灰掺量；透水混凝土；力学性能；透水性能

Key words : Cement-aggregate ratio; Aggregate gradation; Fly ash content; Pervious concrete; Mechanical property; Water permeability

刊期 : 2022年第12期

DOI : 10.19761/j.1000-4637.2022.12.097.04

文章编号 :

基金项目 : 国家重点研发计划专项项目（2020YFA0714300）。

作者 : 张杨1，2，郑扬1，2，黄九达1，2

单位 : 1.苏交科集团股份有限公司，江苏南京211112；2.新型道路材料国家工程研究中心，江苏南京211112

张杨1，2，郑扬1，2，黄九达1，2

张杨,郑扬,黄九达.透水混凝土的力学性能优化及影响因素研究[J].混凝土与水泥制品,2022(12):97-100.

ZHANG Y,ZHENG Y,HUANG J D.Study on Mechanical Performance Optimization and Influencing Factors of Pervious Concrete[J].China Concrete and Cement Products,2022(12):97-100.

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摘要

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结论

参考文献

引用本文

摘要：研究了灰骨比、骨料级配和粉煤灰掺量对透水混凝土力学性能和透水性能的影响。结果表明：随着灰骨比的增大，透水混凝土的抗压强度先增大后减小，空心率总体呈降低趋势，最佳灰骨比为0.22；与单一粒径骨料相比，采用级配骨料可有效提高透水混凝土的抗压强度，当骨料级配为m_{9.50~13.20 mm}∶m_{4.75~9.50 mm}∶m_{2.36~4.75 mm}=30∶50∶20时，透水混凝土的抗压强度和空心率相对最佳；随着粉煤灰掺量的增加，透水混凝土空心率和透水系数均呈下降趋势，抗压强度和抗折强度均先增大后减小，最佳粉煤灰掺量为20%。

Abstract: The effects of the cement-aggregate ratio, aggregate gradation and fly ash content on the mechanical properties and water permeability of pervious concrete were studied. The results show that the compressive strength of pervious concrete first increases and then decreases with the increase of the cement-aggregate ratio, and the hollow ratio generally decreases, and the optimum cement-aggregate ratio is 0.22. Compared with single size aggregate, the use of graded aggregate can effectively improve the compressive strength of pervious concrete. When the aggregate gradation is m_{9.50~13.20 mm}∶m_{4.75~9.50 mm}∶m_{2.36~4.75 mm}=30∶50∶20, the compressive strength and hollow ratio of pervious concrete are relatively optimal. With the increase of fly ash content, the hollow ratio and permeability coefficient of pervious concrete show a downward trend, and the compressive strength and flexural strength increase first and then decrease, and the optimal fly ash content is 20%.

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