Experimental Study on Spall Resistance of Steel-Fiber Reinforced Concrete Slab Subjected to Explosion

International Journal of Concrete Structures and Materials

Bei Zhang¹  Guojun Liu²  Dapeng Yang² 

[1] Institute of Defense Engineering, AMS, PLA, 100850, Beijing, China;Institute of Defense Engineering, AMS, PLA, 471023, Luoyang, China;

关键词: steel-fiber reinforced concrete slab;    explosion test;    steel-fiber parameters;    spall damage;   

DOI  :  10.1186/s40069-021-00459-8

来源: Springer

【 摘 要 】

Steel-fiber reinforced concrete slabs have good blast and spall resistance. In this study, compression and splitting tensile experiments were carried out to obtain the basic quasi-static mechanical properties of the steel-fiber concrete specimens and the influence of steel-fiber parameters was revealed. In-field explosion experiments were performed to study the dynamic responses and damage modes of the steel-fiber reinforced concrete slabs. Five typical spall damage modes were observed, the distribution law of the spalling fragments was obtained, and the influence of steel-fiber shape, length, length–diameter ratio and volume percentage on the spall performance were revealed. These results will provide a basis for the application of steel-fiber reinforced concrete slabs in protective structures.

【 授权许可】

CC BY