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（天津城市建設(shè)學(xué)院土木工程學(xué)院，天津 300384）

[摘要] 研究了不同玄武巖纖維摻量對(duì)C50防水混凝土抗壓和抗折性能影響，并將試驗(yàn)結(jié)果與相同條件下聚丙烯纖維防水混凝土力學(xué)性能進(jìn)行對(duì)比。試驗(yàn)研究表明：摻入玄武巖纖維和聚丙烯纖維后防水混凝土均表現(xiàn)出塑性破壞特征，試件抗壓與抗折強(qiáng)度均有較大幅度提高。兩種纖維對(duì)防水混凝土力學(xué)性能的影響規(guī)律基本一致。

[關(guān)鍵詞] 玄武巖纖維;防水混凝土;聚丙烯纖維;力學(xué)性能;抗?jié)B性能

中圖分類號(hào)：TU377.9      文獻(xiàn)標(biāo)識(shí)碼：A      文章編號(hào)：1002-848X(2013)S1-1467-04

Experimental research on mechanical properties of basalt fiber waterproof concrete

Wang Hailiang, Guo Haiyang, Yang Xinlei, Ren Quanchang, Dong Peng

（School of Civil Engineering, Tianjin Institute of Urban Construction, Tianjin 300384, China）

Abstract: The influence of basalt fiber volume fraction on the compressive strength and the flexural strength of C50 waterproof concrete was investigated by experiments, and the test results were compared with those of polypropylene fiber waterproof concrete. Results showed that two kinds of concrete investigated herein both exhibited plastic failure mode, and the compressive strength and the flexural strength of concrete were improved obviously after adding fibers. Two kinds of fiber had the similar effect on mechanical properties of waterproof concrete.

Keywords: basalt fiber; waterproof concrete; polypropylene fiber; mechanical properties; impermeability