Paper Key : IRJ************993
Author: Anjani Kumar Tiwari,Prince Yadav
Date Published: 26 Oct 2023
Abstract
The marble industry generates stone slurry and solid waste, typically disposed of improperly in open areas, resulting in land contamination. The deposition of marble waste represents a significant environmental challenge in this sector. waste materials in concrete. The primary focus of this study is on the partial replacement of cement with marble powder (0%, 5%, 10%, and 15% by weight) to produce M40 grade concrete with a water-cement ratio of 0.45. The study assessed the compressive, flexural, and split tensile strengths of the concrete at 7, 14, and 28 days. The findings reveal that initially, a 5% substitution of cement with marble dust powder led to a remarkable strength improvement of up to 25% for both 7 and 28 days of curing. However, as the substitution of marble dust increased, the strength exhibited an irregular decline in all the concrete mixtures. Microstructural analyses indicated an enhanced pore structure due to the filling effect of marble powder at lower substitution levels. The experimental findings suggest the judicious use of marble powder for enhancing concrete strength. Consequently, incorporating marble powder into concrete can mitigate its adverse environmental impact and facilitate the production of economically advantageous green concrete.