Engineering Properties and Correlation Analysis of Fiber Cementitious Materials

Materials

Wei-Ting Lin²  Yuan-Chieh Wu²  An Cheng¹  Sao-Jeng Chao¹  Hui-Mi Hsu¹ 

[1] Department of Civil Engineering, National Ilan University, 1 Shen-Lung Road, Ilan 260, Taiwan; E-Mails:;Institute of Nuclear Energy Research, Atomic Energy Council, Executive Yuan, Taoyuan 325, Taiwan; E-Mails:

关键词: fiber cementitious materials;    direct tensile strength;    drop-weight test;    abrasion test;   

DOI  :  10.3390/ma7117423

来源: mdpi

【 摘 要 】

This study focuses on the effect of the amount of silica fume addition and volume fraction of steel fiber on the engineering properties of cementitious materials. Test variables include dosage of silica fume (5% and 10%), water/cement ratio (0.35 and 0.55) and steel fiber dosage (0.5%, 1.0% and 2.0%). The experimental results included: compressive strength, direct tensile strength, splitting tensile strength, surface abrasion and drop-weight test, which were collected to carry out the analysis of variance to realize the relevancy and significance between material parameters and those mechanical properties. Test results illustrate that the splitting tensile strength, direct tensile strength, strain capacity and ability of crack-arresting increase with increasing steel fiber and silica fume dosages, as well as the optimum mixture of the fiber cementitious materials is 5% replacement silica fume and 2% fiber dosage. In addition, the Pearson correlation coefficient was conducted to evaluate the influence of the material variables and corresponds to the experiment result.

【 授权许可】

CC BY   
© 2014 by the authors; licensee MDPI, Basel, Switzerland.