再生细骨料的级配优化及对混凝土性能的影响

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发布时间：2020-01-06 00:00:00

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再生细骨料的级配优化及对混凝土性能的影响

Gradation Optimization of Recycled Fine Aggregate and Its Influence on the Properties of Concrete

2022年第7期

再生细骨料；颗粒级配；细度模数；混凝土；工作性；抗压强度；抗冻性能；耐久性能

Recycled fine aggregate; Particle gradation; Fineness modulus; Concrete; Workability; Compressive strength; Frost resistance; Durability

2022年第7期

10.19761/j.1000-4637.2022.07.092.05

国家自然科学基金重点国际合作项目（51420105015）；中建西部建设股份公司课题项目（ZJXJ-2020-02）。

艾洪祥1，刘洋1，卢霄1，李绍纯2，郑海康1，马旭东1

1.中建西部建设新疆有限公司，新疆乌鲁木齐 830000；2.青岛理工大学土木工程学院，山东青岛 266033

艾洪祥1，刘洋1，卢霄1，李绍纯2，郑海康1，马旭东1

艾洪祥,刘洋,卢霄,等.再生细骨料的级配优化及对混凝土性能的影响[J].混凝土与水泥制品,2022(7):92-96.

AI H X,LIU Y,LU X,et al.Gradation Optimization of Recycled Fine Aggregate and Its Influence on the Properties of Concrete[J].China Concrete and Cement Products,2022(7):92-96.

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摘要：研究了再生细骨料的掺量和颗粒级配对混凝土工作性、力学性能、抗冻性能和耐久性能的影响。结果表明：再生细骨料的最佳掺量为20%，此时，混凝土的工作性和力学性能较好；采用再生细骨料（Ⅱ区粗砂）等质量替代20%天然砂配制的混凝土工作性、力学性能较优，其28 d抗压强度相比于采用天然砂的基准组提高了9%，且其抗冻性能、耐久性能与采用天然砂配制的混凝土相近。 Abstract: The effects of the content and particle gradation of recycled fine aggregate on the workability, mechanical properties, frost resistance and durability of concrete were studied. The results show that the optimum content of recycled fine aggregate is 20%, and the workability and mechanical properties of concrete are better. The concrete prepared with recycled fine aggregate (coarse sand in zone Ⅱ) instead of 20% natural sand has better workability and mechanical properties, and its 28 d compressive strength is 9% higher than that of the reference group with natural sand, and its frost resistance and durability are similar to those of the concrete prepared with natural sand.

英文名 : Gradation Optimization of Recycled Fine Aggregate and Its Influence on the Properties of Concrete

刊期 : 2022年第7期

关键词 : 再生细骨料；颗粒级配；细度模数；混凝土；工作性；抗压强度；抗冻性能；耐久性能

Key words : Recycled fine aggregate; Particle gradation; Fineness modulus; Concrete; Workability; Compressive strength; Frost resistance; Durability

刊期 : 2022年第7期

DOI : 10.19761/j.1000-4637.2022.07.092.05

文章编号 :

基金项目 : 国家自然科学基金重点国际合作项目（51420105015）；中建西部建设股份公司课题项目（ZJXJ-2020-02）。

作者 : 艾洪祥1，刘洋1，卢霄1，李绍纯2，郑海康1，马旭东1

单位 : 1.中建西部建设新疆有限公司，新疆乌鲁木齐 830000；2.青岛理工大学土木工程学院，山东青岛 266033

艾洪祥1，刘洋1，卢霄1，李绍纯2，郑海康1，马旭东1

艾洪祥,刘洋,卢霄,等.再生细骨料的级配优化及对混凝土性能的影响[J].混凝土与水泥制品,2022(7):92-96.

AI H X,LIU Y,LU X,et al.Gradation Optimization of Recycled Fine Aggregate and Its Influence on the Properties of Concrete[J].China Concrete and Cement Products,2022(7):92-96.

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Abstract: The effects of the content and particle gradation of recycled fine aggregate on the workability, mechanical properties, frost resistance and durability of concrete were studied. The results show that the optimum content of recycled fine aggregate is 20%, and the workability and mechanical properties of concrete are better. The concrete prepared with recycled fine aggregate (coarse sand in zone Ⅱ) instead of 20% natural sand has better workability and mechanical properties, and its 28 d compressive strength is 9% higher than that of the reference group with natural sand, and its frost resistance and durability are similar to those of the concrete prepared with natural sand.

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再生细骨料的级配优化及对混凝土性能的影响

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