TY - GEN
T1 - Research on strength and microstructure of fibre foamed concrete
AU - Qiu, Tairui
AU - Xing, Chao
AU - Tan, Yiqiu
AU - Xu, Jiquan
AU - Liu, Xinqing
AU - Wang, Liqing
AU - Wang, Yongfeng
AU - Chen, Changming
AU - Zhao, Liting
N1 - Publisher Copyright:
© 2022 the Author(s).
PY - 2022
Y1 - 2022
N2 - Foamed concrete is a porous cement-based material composed of cement, foaming agent, and water. It has the advantages of light weight, good integrity, and convenient construction. It is widely used in construction engineering, subgrade engineering, and backfilling of bridge abutments. Due to the shrinkage cement and load, the foamed concrete cracks, which affects the performance. In order to improve the crack resistance of the foamed concrete, this study added basalt fibre, glass fibre, polyester and wood fibre to the foamed concrete, and tested its mechanical properties and microstructure. The results show that the addition of basalt fibre, glass fibre, and polyester can improve the compressive strength and flexural strength of foamed concrete. Among them, glass fibre foamed lightweight soil has higher flexural strength, and polyester foamed concrete has higher compressive strength. The strength of polyester foamed concrete increases with the increase of fibre addition, and the strength of glass fibre foamed concrete will decrease when the adding amount of glass fibre exceeds 0.1%. According to industrial CT (Computed Tomography) test results, the average void volume and the number of voids will decrease after adding fibres.
AB - Foamed concrete is a porous cement-based material composed of cement, foaming agent, and water. It has the advantages of light weight, good integrity, and convenient construction. It is widely used in construction engineering, subgrade engineering, and backfilling of bridge abutments. Due to the shrinkage cement and load, the foamed concrete cracks, which affects the performance. In order to improve the crack resistance of the foamed concrete, this study added basalt fibre, glass fibre, polyester and wood fibre to the foamed concrete, and tested its mechanical properties and microstructure. The results show that the addition of basalt fibre, glass fibre, and polyester can improve the compressive strength and flexural strength of foamed concrete. Among them, glass fibre foamed lightweight soil has higher flexural strength, and polyester foamed concrete has higher compressive strength. The strength of polyester foamed concrete increases with the increase of fibre addition, and the strength of glass fibre foamed concrete will decrease when the adding amount of glass fibre exceeds 0.1%. According to industrial CT (Computed Tomography) test results, the average void volume and the number of voids will decrease after adding fibres.
KW - CT
KW - fibre
KW - foamed concrete
KW - microstructure
KW - strength
UR - https://www.scopus.com/pages/publications/85145496855
U2 - 10.1201/9781003251125-88
DO - 10.1201/9781003251125-88
M3 - 会议稿件
AN - SCOPUS:85145496855
SN - 9781032169545
T3 - Green and Intelligent Technologies for Sustainable and Smart Asphalt Pavements - Proceedings of the 5th International Symposium on Frontiers of Road and Airport Engineering, IFRAE 2021
SP - 554
EP - 560
BT - Green and Intelligent Technologies for Sustainable and Smart Asphalt Pavements - Proceedings of the 5th International Symposium on Frontiers of Road and Airport Engineering, IFRAE 2021
A2 - Liu, Xueyan
A2 - Anupam, Kumar
A2 - Erkens, Sandra
A2 - Sun, Lijun
A2 - Ling, Jianming
PB - CRC Press/Balkema
T2 - 5th International Symposium on Frontiers of Road and Airport Engineering, IFRAE 2021
Y2 - 12 July 2021 through 14 July 2021
ER -