Mechanical Performance of 3D Printed Concrete in Steam Curing Conditions

被引：10
|
作者：
Wang, Bolin [1 ]
Yao, Xiaofei [1 ]
Yang, Min [1 ]
Zhang, Runhong [2 ,3 ]
Huang, Jizhuo [4 ]
Wang, Xiangyu [5 ]
Dong, Zhejun [6 ]
Zhao, Hongyu [2 ,7 ]
机构：
[1] CCCC First Highway Consultants Co Ltd, Xian 710075, Peoples R China
[2] Chongqing Univ, Inst Smart City, Chongqing Univ Liyang, Liyang 213300, Peoples R China
[3] Chongqing Univ, Coll Aerosp Engn, Chongqing 400045, Peoples R China
[4] Fuzhou Univ, Coll Civil Engn, 2 Xue Yuan Rd, Fuzhou 350116, Peoples R China
[5] Curtin Univ, Sch Design & Built Environm, Perth, WA 6102, Australia
[6] Suzhou Univ Sci & Technol, Sch Civil Engn, Suzhou 215009, Peoples R China
[7] Chongqing Univ, Sch Civil Engn, Chongqing 400045, Peoples R China
来源：
MATERIALS | 2022年 / 15卷 / 08期
关键词：
3D concrete printing; curing conditions; mechanical capacity; solid waste; anisotropy; sustainability; SHEAR BEHAVIOR; STRENGTH; TECHNOLOGY; PREDICTION;
D O I：
10.3390/ma15082864
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Three-dimensional (3D) concrete printing (3DCP) technology attracts significant attention from research and industry. Moreover, adequate mechanical performance is one of the primary properties for materials, meeting the demand of structural safety using 3DCP technology. However, research on curing conditions as the significant influence factor of mechanical capacity is required to accelerate the practical application of 3DCP technology. This study aims to explore the impact of various steam curing conditions (heating rate, constant temperature time, and constant temperature) on the mechanical performance of printed concrete containing solid wastes. Moreover, the optimal steam curing conditions are obtained for compressive, tensile, and flexural properties in different directions. Subsequently, anisotropies in the mechanical properties of printed composites and interlayer bonding behaviors are investigated when various curing conditions are employed. The result shows that steam curing conditions and solid waste incorporation improves the interlayer bond for 3D printed cement-based composites.
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收藏
页数：20
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