Open AccessImpact of Substitute Portland Cement with CKD on the Mechanical and Durability Characteristics of Cement Mortar
Author(s) -
Duaa Al-Faluji,
Muna M. Al-Rubaye,
Mohammed Salah Nasr,
Ali Shubbar,
Zainab S. Al-Khafaji,
Ahmed Alkhayyat,
Mustafa S. Abdulraheem
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1090/1/012035
Subject(s) - portland cement , mortar , compressive strength , cement , raw material , materials science , durability , composite material , kiln , waste management , metallurgy , engineering , chemistry , organic chemistry
Cement mortar is a binding material that is made of cement, sand and water. In general, mixes of mortar are made of raw materials. However, using raw materials in producing mortar leads to many environmental and economic issues. One of the most common solutions to reduce these issues is replacing raw materials by waste and/or by-product materials; especially replacing cement. The aim of this research is to explore the characteristics of mortar mixes after partially replacing Ordinary Portland Cement (OPC) by Cement Kiln Dust (CKD) at three percentages (10%, 20% and 30%) in terms of initial and final setting time, compressive strength and Ultrasonic Pulse Velocity (UPV). The control mortar specimen (mortar containing OPC only) results were adopted for comparison with results of mortar mixes that incorporated CKD. Results showed that increment in CKD replacement percentages led to a decrement in the compressive strength and UPV and an increment in the setting time.