Mechanical Characterization of Sisal Fiber Reinforced Cement Mortar
The purpose of this work is to evaluate the mechanical characteristics of sisal fiber reinforced cement mortar.The composite material was produced from a mixture of sand,cement and water in the proportions of 1∶1∶0.4,respectively.Sisal fibers,amounting to 3% of the weight of cement,were added to the mixture in two different lengths,namely 25 and 45 mm.Mechanical characterization of both the composite and the plain mortar was carried out by means of three point bend,compression and impact tests.Specimens containing parallel sided notches of different root radii were loaded in three point bending in an effort to determine the effect of the fibers on the fracture behavior of the material in the presence of discontinuities.The results obtained indicate that,while fiber reinforcement leads to a decrease in the ultimate compressive strength,J integral calculations at maximum load for the different notch root radii have indicated,particularly for the case of long fibers,a significant superiority of the reinforced material in comparison with the plain cement mortar,in consistence with the impact test data
Composite material Impact energy Fracture initiation J-integral
Roberto Fujiyama Fathi Darwish Marcos Pereira
Department of Mechanical Engineering,Pará Federal University,Belém PA 66075-110,Brazil Department of Civil Engineering,Fluminense Federal University,Niterói RJ 24210-240,Brazil Department of Materials Engineering,Catholic University of Rio de Janeiro,Rio de Janeiro RJ 22451-90
国际会议
北京
英文
1-7
2013-06-16（万方平台首次上网日期，不代表论文的发表时间）