Effect of Moisture Condition of Recycled Coarse Aggregate on the Properties of Concrete

被引：0
|
作者：
Duan Z. [1 ,2 ]
Jiang S. [1 ]
Xiao J. [1 ,2 ]
Hou S. [1 ]
Chen X. [1 ]
机构：
[1] Department of Structural Engineering, Tongji University, Shanghai
[2] Key Laboratory of Performance Evolution and Control for Engineering Structures of Ministry of Education, Tongji University, Shanghai
来源：
Jianzhu Cailiao Xuebao/Journal of Building Materials | 2021年 / 24卷 / 03期
关键词：
Compressive strength; Moisture condition; Recycled coarse aggregate concrete; Resistance to chloride ion penetration; Rheological property;
D O I：
10.3969/j.issn.1007-9629.2021.03.014
中图分类号：
学科分类号：
摘要：
The influence of moisture condition(oven dry, air-dry, saturated surface dry) of recycled coarse aggregate on the rheological properties of fresh concrete was studied, and the early mechanical and durability properties were also tested. The results show that the moisture condition of recycled coarse aggregate plays a significant part in the rheological properties of fresh concrete. Although the free water content of the fresh concrete has little effect on the dynamic yield stress of fresh concrete, it can significantly affect the corresponding static yield stress and plastic viscosity. Besides, the recycled coarse aggregate in air-dry condition has the least adverse effect on compressive strength among all the 3 conditions examined in this study. © 2021, Editorial Department of Journal of Building Materials. All right reserved.
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页码：545 / 550
页数：5
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