Limestone is widely used in the construction industry to produce Portland limestone cement (PLC) concrete. Systematic evaluations of hydration kinetics, compressive strength development, and carbonation resistance are crucial for the rational use of limestone. This study presents a hydration-based model for evaluating the influences of limestone on the strength and carbonation of concrete. Firs...

In this study, the effects of limestone powder on rheological behavior, pore solution chemistry, mechanical properties and microstructure alkali-activated cements have been investigated. The results exhibit that, with increasing content in ternary system, structural build-up mixture increases earlier. It was observed that flow curves pastes fit Bingham model well. With fly ash mixtures, plastic...

The paper presents the effect of powders obtained from egg-shells and limestone on rheological properties cement pastes. Both were added to Portland CEM I 42.5 R, 30% by mass. higher yield stress plastic viscosity pastes prepared with addition eggshell powder, compared made explained influence membrane its chemical structure. membrane, which absorbs water expands in paste, is causing an increas...