Producing cement mortars through implementing cement replacement

Abstract

Cement mortars have been recognised as one of the most important and effective binding materials. The main materials that can be used in cement mortars are sand and Portland cement. The implementation of natural materials in the production process of cement mortars has many negative environmental effects including energy consumption production of various pollutants. Scientific research highlighted that the implementation of wasted materials as cementitious materials has large potential environmentally and economically. The present research study aims to assess the compressive strength of cement mortars that contain replacement Cementous materials that are cement kiln dust and silica fume. The compressive strength of the developed mortars was examined after 7 and 28 days of curing. The findings extracted from the specimens that contain cement replacement have been compared to the specimens of cement mortar having only cement. The findings revealed that mixtures that contain cement kiln dust and silica fume have less compressive strength than mixtures of ordinary Portland cement only. Moreover, a lesser compressive strength was obtained with a greater cement kiln dust content. Samples with reduced replacement at various curing times have higher compressive strength values.