The compressive, shear strengths and abrasion-erosion resistance as well as flexural properties of two polypropylene fiber reinforced concretes and the comparison with a steel fiber reinforced concrete were reported.The exprimental results show that a low content of polypropylene fiber (0.91kg/m3 of concrete) slightly decreases the compressive and shear strengths, and appreciably increased the flexural strength, but obviously enhances the toughness index and fracture energy for the concrete with the same mix proportion, consequently it plays a role of anti-cracking and improving toughness in concrete. Moreover, the polypropylene mesh fiber is better than the polypropylene monofilament fiber in improving flexural strength and toughness of concrete, but the two types of polypropylene fibers are inferior to steel fiber. All the polypropylene and steel fibers have no great beneficial effect on the abrasion-erosion resistance of concrete.
参考文献
| [1] | V M Malhortra;G G Carette;A Bilodeau .Mechanical Properties and Durability of Polypropylene Fiber Reinforced High-volume Fly Ash Concrete for Shotcrete Applications[J].ACI Materials Journal,1994,91(05):478-486. |
| [2] | P Soroushian;A Khan;J W Hsu .Mechanical Properties of Concrete Materials Reinforced with Polypropylene or Polyethylene Fibers[J].ACI Materials Journal,1992,89(02):535-540. |
| [3] | Cao Cheng;Wang Zhaoyang.Analyses on the Effect of a Low Volume Fraction of Polypropylene Fiber on Concrete[M].北京:中国建筑工业出版社,2000:34-36. |
| [4] | Test Code for Hydraulic Concrete(DL/T 5150-2001)[S].北京:中国电力出版社,2002. |
| [5] | China Engineering Construction Association Standard.Testing Method Used for Steel Fiber Reinforced Concrete(CECS13:89)[M].北京:中国计划出版社,1996:37-49. |
| [6] | China Aviation Academe.Handbook for Stress Intensity Factor[M].北京:科学出版社,1981 |
| [7] | P E Petersson .Fracture Energy of Concrete:Method of Determination[J].Cement and Concrete Research,1980,10(01):78-90. |
| [8] | Li Guangwei;Yang Yuanhui .Experimental Study on Properties of Polypropylene Fiber Reinforced Concrete[J].Advances in China Water Conservancy and Hydropower,2001,21(05):14-16. |
| [9] | Hua Yuan;Liu Ronghua;Zeng Yi.Experimental Study on High Performance Concrete Reinforced with Fiber[J].China Concrete and Cement Products,1998(03):40-43. |
| [10] | Gong YI;Shen Rongxi;Li Qinghai.Application of Durafiber to Civil Architectural Engineering[M].北京:机械工业出版社:54-66. |
| [11] | Zhao Guofan;Peng shaomin;Huang Chengkui.Steel Fiber Reinforced Concrete Structure[M].北京:中国建筑工业出版社,1999:14,131-134. |
| [12] | Chu Chuanying.Studies of Raw Materials of Concrete Used in the Three Gorges Project[M].Beijing:China Water and Electricity Press,1999:240-241. |
| [13] | Ma Yiping;Tan Muhua;Wu Keru.Effect of Polypropylene Fiber on Properties of Cement Based Material[M].北京:中国建筑工业出版社,2000:26-29. |
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