A Research on Behaviour of Green Concrete with Waste By-products
摘要
The observation examines the properties and effectiveness of green concrete with ground granulated blast-furnace slag (GGBS), fly ash (FA), and rice husk ash (RHA). The studies examine the partial substitution of cement with those additives at proportions of 5, 10, 15, and 20% throughout periods of 7 and 28 days. Experimental study demonstrated that GGBS displayed the greatest strength amongst the materials at both time intervals, whereas RHA exhibited the least performance. FA offered moderate strength, appropriate for applications necessitating minimal strength. The maximum compressive strength was attained with a 20% GGBS substitution, while the minimum strength was observed with a 20% RHA substitution. GGBS, due to its rapid setting characteristics, demonstrated reduced workability, rendering it suitable for road building and repair endeavours. GGBS is advised for high-strength concrete, FA is suitable for intermediate strength applications, and RHA, while diminishing strength, can be utilized in low-strength applications owing to its favourable workability. The results underscore the feasibility of GGBS and FA as effective substitutes for cement in diverse applications, while RHA's utilization is confined to low-strength contexts.