A Step Toward Sustainability by Developing a Correlation Between Destructive and Nondestructive Compressive Strength of Hybrid Fiber Reinforced Concrete
摘要
Destructive testing of concrete is harmful and wasteful as concrete waste cannot be recycled. Also conducting destructive testing on concrete, large, heavy machinery such as universal testing must be used which is costly and time consuming. Furthermore, concrete specimen is manufactured utilizing hybrid fiber reinforced technology, which incorporates both steel fiber scraps from a lathe and glass fibers. Lathe waste is generated abundantly in local workshops, making efficient recycling management a must. This research aims to build a correlation between destructive (Universal testing machine) and nondestructive testing (UPV and rebound hammer) methods. Different grades of hybrid fiber reinforced concrete i.e., C10: 1:4:8, C:20: 1:2:4, C:25: 1:2:3 and C30: 1:1.5:3 having 2% lathe waste steel fibers and 0.6% glass fibers were casted and tested at curing age of 28 days. The destructive compressive strength of hardened hybrid fiber reinforced concrete was graphed in relation to the rebound hammer and Ultra sonic pulse velocity UPV. Compressive strength usually conducted through universal testing machine can be measure calculated using the equation derived from the correlation of destructive and non-destructive testing UPV and rebound hammer.