Effect of Modified Deformed Steel Fiber on Mechanical Properties of Artificial Granite

• Main Authors: Xuetao Qiao, Peng Wang, Cunfu Yan, Fang Li, Long Wu
• Format: Article
• Language: English
• Published: Hindawi Limited 2021-01-01
• Series: Advances in Civil Engineering
• Online Access: http://dx.doi.org/10.1155/2021/8864753

In order to explore the influence of the shape and surface treatment of steel fiber on the mechanical properties of artificial granite matrix, the drawing models of W-type, L-type, V-type, and I-type steel fiber are established, the pull-out force of different shapes of steel fiber is calculated theoretically, and a large number of experimental specimens are made for the pull-out test of steel fiber and material strength test. Both theory and experiment show that W-type steel fiber has the greatest influence in artificial granite. The steel fibers with different shapes were treated with KH-550 silane coupling agent. Then the steel fibers with different shapes before and after treatment were put into the artificial granite matrix for pull-out test and material strength test. The results showed that, compared with L-type, V-type, and I-type steel fibers before and after KH-550 silane coupling agent treatment, W-type steel fibers after KH-550 silane coupling agent treatment have the best strength enhancement effect in artificial granite matrix.