Strength properties of nylon- and polypropylene-fiber-reinforced concretes |
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| Authors: | PS Song S Hwang |
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| Affiliation: | a Department of Civil Engineering, Dahan Institute of Technology, Sincheng, Hualien 971, Taiwan, R.O.C.
b Department of System Engineering, Chung Cheng Institute of Technology, National Defense University, Dashi, Taoyuan 335, Taiwan, R.O.C. |
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| Abstract: | The strength potential of nylon-fiber-reinforced concrete was investigated versus that of the polypropylene-fiber-reinforced concrete, at a fiber content of 0.6 kg/m3. The compressive and splitting tensile strengths and modulus of rupture (MOR) of the nylon fiber concrete improved by 6.3%, 6.7%, and 4.3%, respectively, over those of the polypropylene fiber concrete. On the impact resistance, the first-crack and failure strengths and the percentage increase in the postfirst-crack blows improved more for the nylon fiber concrete than for its polypropylene counterpart. In addition, the shrinkage crack reduction potential also improved more for the nylon-fiber-reinforced mortar. The above-listed improvements stemmed from the nylon fibers registering a higher tensile strength and possibly due to its better distribution in concrete. |
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| Keywords: | Mechanical properties Concrete Fiber reinforcement Shrinkage |
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