Experimental and theoretical studies on postfire behavior of functionally graded ultra-high performance concrete
Linpu Du,
Xuping Ji,
Kaiwei Lu
et al.
Abstract:In order to improve structural fire-resistant behaviors, this paper designed a two-layer functionally graded ultra-high performance concrete (FGUHPC) structure composed of a UHPC layer and a lightweight aggregate concrete (LWAC) layer. UHPC layers are adopted to provide structural bearing capacity and protected by LWAC layers from elevated temperature. Splitting tensile tests and three-point flexural tests were conducted under ambient and elevated temperatures to evaluate interfacial bond performance and flexu… Show more
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