Investigation of a new type of thermal insulation shotcrete with silicone rubber tubes (SSRT)

被引:13
作者
Chen, Lianjun [1 ,3 ,4 ]
Meng, Xiangrui [1 ,3 ,4 ]
Liu, Guoming [1 ,3 ,4 ]
Zhao, Jipeng [2 ,3 ,4 ]
Liu, Zhaoxia [2 ,3 ,4 ]
机构
[1] Shandong Univ Sci & Technol, Coll Safety & Environm Engn, Qingdao 266590, Peoples R China
[2] Shandong Univ Sci & Technol, Coll Energy & Min Engn, Qingdao 266590, Peoples R China
[3] Shandong Univ Sci & Technol, State Key Lab Min Disaster Prevent & Control Cofou, Qingdao 266590, Peoples R China
[4] Shandong Univ Sci & Technol, Minist Sci & Technol, Qingdao 266590, Peoples R China
基金
中国国家自然科学基金;
关键词
High temperature environments; Thermal insulation; Shotcrete; Silicone rubber tubes; Thermal conductivity; CEMENT; TEMPERATURE; CONCRETE; MINE;
D O I
10.1016/j.conbuildmat.2022.127631
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
In order to solve the high temperature problem faced in underground engineering, a method of laying silicone rubber tubes (SRTs) in the anchor net structure to form a new type of thermal insulation shotcrete with SRTs (SSRT) is proposed in this paper. The mechanical and thermal insulation performances of SSRT are investigated, as well as the correlation between SRTs sizes and compressive strength, splitting strength and thermal conductivity. Results show that SSRT has increased the thermal insulation performance of 44-71% compared with ordinary Portland shotcrete (OPS), and the mechanical performance is affected to varying degrees. Based on the experiments in this paper, the optimal SRTs laying process parameters of SSRT are determined, i.e. SRTs with an outer diameter of 8 mm, an inter diameter of 3 mm and a distance of 8-9 mm between SRTs. This investigation provides a new exploration and theoretical basis for shotcrete support and insulation technology in high ground temperature environments.
引用
收藏
页数:10
相关论文
共 44 条
[11]   An Experimental Study on Mechanical and Thermal Insulation Properties of Rubberized Concrete Including Its Microstructure [J].
Guo, Jiaqi ;
Huang, Meng ;
Huang, Shanxiu ;
Wang, Sheng .
APPLIED SCIENCES-BASEL, 2019, 9 (14)
[12]  
Hu Y., CONSTR BUILD MATER, V263
[13]   A study on the thermo-mechanical properties of shotcrete structure in a tunnel, excavated in granite at nearly 90 °C temperature [J].
Hu, Yunpeng ;
Wang, Qiling ;
Wang, Mingnian ;
Liu, Dagang .
TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY, 2021, 110
[14]  
Huang S., 2011, MOD MINING, V27, P24
[15]  
Li G., 2010, METAL MINE, P158
[16]   Big data audit based on financial sharing service model [J].
Li, Linghan ;
Feng, Yan ;
Li, Lei .
JOURNAL OF INTELLIGENT & FUZZY SYSTEMS, 2020, 39 (06) :8997-9005
[17]   Potential use of waste tire rubber as aggregate in cement concrete - A comprehensive review [J].
Li, Yang ;
Zhang, Shuai ;
Wang, Ruijun ;
Dang, Faning .
CONSTRUCTION AND BUILDING MATERIALS, 2019, 225 :1183-1201
[18]   Impact of the water evaporation on the heat and moisture transfer in a high-temperature underground roadway [J].
Li, Zijun ;
Xu, Yu ;
Li, Rongrong ;
Jia, Mintao ;
Wang, Qiaoli ;
Chen, Yin ;
Cai, Rongzi ;
Han, Ziqing .
CASE STUDIES IN THERMAL ENGINEERING, 2021, 28
[19]  
Liu G., 2017, J SHANDONG U SCI TEC, P66
[20]  
Liu L.M., 2017, J. Shandong Univ. Sci. Technol. Nat. Sci, V36, P46