Experimental effect of pre-treatment of rubber fibers on mechanical properties of rubberized concrete

• DOI: 10.1016/j.jmrt.2023.01.027
• Publication Date: 2023-01-13T09:45:16Z
• Authors: Dhiraj Agrawal; Uday Waghe; Khalid Ansari; Rajendra Dighade; Mugahed Amran; Diyar N. Qader; Roman Fediuk
• Keywords: Properties of concrete; Abrasion (mechanical); Sodium hydroxide

The current experimental research encompasses the outcome of pre-treatment rubber fiber (RF) derived from discarded tires when utilized in concrete as a limited substitution sand by its volume. To overcome causes reduction strengths after inclusion particles (RP) fractional or complete replacement fine aggregates, three different pre-treatments are adopted this study using sodium hydroxide (NaOH), hydrochloric acid (HCL), and water spray method, obtained results compared with controlled rubberized (RC) untreated RF. aggregates swapped tire RFs size 2.36–1.18 mm maximum length 20 0% to 20% an increase 5%. RC's mechanical properties studied, they contrasted those that has no substitute. Fresh like workability, density, hardened such compressive, flexural, splitting tensile were assessed. In addition abrasion resistance check wear tear concrete, load–displacement relationship, elastic modulus, microstructural analysis RC also studied. investigated varied methods adopted. Altered shown enhancement for up certain limit replacement. is observed sand. Concrete 10% pretreated NaOH HCL enhancements strength decline rate RFs. Based on major findings study, better strain behavior was observed.