Evaluation of Mechanical Properties of Sealing Mortar with Partial Replacement of Portland Cement by Stone Crusher Waste

Abstract

Civil construction is one segment responsible for major environmental and social impacts. Among its raw materials, Portland cement, which is produced by the burning and subsequent grinding of a composition of clays and limestones. This manufacturing process causes great environmental damage, both by the exploitation of deposits and by the process of clinkering (burning of raw materials), which emits a significant amount of CO 2 in the atmosphere. Therefore, there is a need for research on materials that reduce these impacts on the environment and that can be used by civil construction to the partial replacement of cement. Thus, this research had as objective to produce settlement mortar through the partial replacement of the Portland cement by filler powder, in different proportions and to study its mechanical properties. The results show that the partial replacement of the cement by the residue has acceptable behavior in the mortar.

Experimental studies on the effect of nano silica modified novel concrete CFST columns

“…Earlier research indicates that the addition of Nano silica (NS) particles in cement mortar improves the mechanical strength of the specimen more than the Silica Fume (SF) and Fly Ash (FA) concrete showed Biricik and Sarier (2014). Dossena et al (2019) indicated that when cement was replaced by 10% of crusher residue, the strength of the mortar increased; however, when the replacement was above 10% the strength decreased. Using Taguchi Grey relationship analysis, the 2% nano-silica was optimized in cement mortar, and the study findings revealed that the compressive strength increased and water absorption reduced [9].…”