Mechanical characterization of sisal reinforced cement mortar

Theoretical and Applied Mechanics Letters

F. Darwish¹  M.V. Pereira²  R. Fujiyama³ 

[1] Department of Civil Engineering, Fluminense Federal University, Niteroi RJ 24210-240, Brazil;Department of Materials Engineering Catholic University of Rio de Janeiro, Rio de Janeiro RJ 22453-900, Brazil;Department of Mechanical Engineering, Para Federal University, Belem PA 66075-110, Brazil;

关键词: composite material;    impact energy;    fracture initiation;    J-integral;   

DOI  :  10.1063/2.1406102

来源: DOAJ

【 摘 要 】

This work aims at evaluating the mechanical behavior of sisal fiber reinforced cement mortar. The composite material was produced from a mixture of sand, cement, and water. Sisal fibers were added to the mixture in different lengths. Mechanical characterization of both the composite and the plain mortar was carried out using three point bend, compression, and impact tests. Specimens containing notches of different root radii were loaded in three point bending in an effort to determine the effect of the fibers on the fracture toughness of the material. The results obtained indicate that, while fiber reinforcement leads to a decrease in 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.

【 授权许可】

Unknown