Utilization of sugarcane bagasse ash as cement-replacing materials for concrete pavement: an overview

Production of sustainable concrete by resorting to new technologies such as self-compacting concrete using different industrial wastes ensures the prevention of environmental pollution on one hand and renders the sustainable construction material. This paper presents an overview of the utilization of sugarcane bagasse ash (SCBA), a waste material from the sugar industry, in the production of both conventional concrete and self-compacting concrete (SCC). The paper reviews the physical and chemical properties, different processing techniques for the pozzolanic activity of SCBA, and effect on fresh and mechanical properties of conventional concrete and SCC. Further, the literature on a new type of self-compacting concrete called semi-flowable self-consolidating concrete involving utilization of the industrial waste in general and rigid pavements in particular is reviewed. The critical appraisal shows that the addition of SCBA at lower fractions (around 10–30%) enhances the performance of the concrete, and further, at higher levels of replacement, SCBA reduces the performance of concrete. There is relatively less work reported on the utilization of SCBA in the self-consolidating concrete and semi-flowable self-consolidating concrete, especially in the context of concrete pavement.