- 摘 要
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（1 西安建筑科技大學土木工程學院， 西安 710055； 2 成都天華西南建筑設計有限公司， 成都 610016）
［摘要］通過9組不同配合比高延性纖維混凝土立方體和棱柱體試塊的抗壓強度試驗，研究不同尺寸高延性纖維混凝土立方體與棱柱體抗壓強度之間的關系。結果表明，高延性纖維混凝土試塊縱向受壓時表現(xiàn)出良好的抗壓韌性；高延性纖維混凝土強度比值系數(shù)隨著材料延性的提高而增大，水膠比和粉煤灰摻量增大，強度比值系數(shù)有所提高；試驗得到截面為100，70-7，40mm的高延性纖維混凝土試塊強度比值系數(shù)分別為0-91，0-88，0-80。根據(jù)試驗結果，提出了高延性纖維混凝土的軸心抗壓強度計算公式。
［關鍵詞］高延性纖維混凝土； 立方體抗壓強度； 強度比值系數(shù)
中圖分類號：TU528.572文獻標識碼：A文章編號：1002-848X(2016)23-0079-06
Experimental research on compressive strength of high ductility fiber reinforced concrete
Deng Mingke1， Jing Wubin1， Qin Meng1，2， Liang Xingwen1
(1 School of Civil Engineering, Xi′an University of Architecture ＆ Technology, Xi′an 710055, China; 2 Chengdu Tianhua (Southwest Region) Architecture Planning ＆ Engineering Ltd., Chengdu 610016, China)
Abstract:Through compressive strength tests of 9 groups of high ductility fiber reinforced concrete cubes (with different mix proportions) and prism specimens, the relationship between the compressive strength of high ductility fiber reinforced concrete cubes and prisms with different dimensions was studied. The results show that high ductility fiber reinforced concrete specimens show good compressive toughness under longitudinal pressure. Strength ratio coefficient of high ductility fiber reinforced concrete increases with increase of the material ductility, and strength ratio coefficient increases when water-cement ratio and fly ash content increase. Strength ratio coefficients of the high ductility fiber reinforced concrete specimens with sizes of 100, 70-7 and 40mm are 0-91, 0-88 and 0-80 respectively. According to the test results, the axial compressive strength calculation formula of high ductility fiber reinforced concrete was proposed.
Keywords:high ductility fiber reinforced concrete; cubic compressive strength; strength ratio coefficient
*陜西省自然科學基金項目(2013JM7013)，西安市科技計劃項目(CX13135-3)。
作者簡介：鄧明科，博士后，副教授，碩士生導師，Email：dengmingke@126.com。
