Utilization of locally produced waste in the production of sustainable mortar

Case Studies in Construction Materials

Isam Mohamad Ali¹  Ali Talib AbdulAmeer²  Qassim Thaer Kareem³  Ali Abdulhussein Shubbar⁴  Mohammed Salah Nasr⁴  Ahmed Mahdi Hussein⁵ 

[1] Corresponding author.;Department of Civil Engineering, Liverpool John Moores University, Henry Cotton Building, Webster Street, Liverpool L3 2ET, UK;Department of Building and Construction Technical Engineering, College of Technical Engineering, The Islamic University, 54001 Najaf, Iraq;Technical Institute of Babylon, Al-Furat Al-Awsat Technical University (ATU), Iraq;Technical Institute of Karbala, Al-Furat Al-Awsat Technical University (ATU), Iraq;

关键词: Cellular concrete block waste powder;    Cement replacement;    Sand replacement;    Mechanical properties;    Eco-friendly mortar;   

DOI  :  

来源: DOAJ

【 摘 要 】

Environmental pollution due to CO2 emissions from the cement industry and the depletion of the natural resources of the aggregate used in the concrete industry call for the need to find alternatives to reduce these harmful effects. Some of these alternatives include the use of supplementary cementitious materials and the reuse of wastes from other industries as cement and aggregate replacement materials. Thus, this study was conducted to investigate the possibility of using autoclaved aerated (cellular) concrete blocks waste powder (CCP) that is locally produced as a partial substitute for cement or sand in mortar. Seven mixtures were cast. Three of them made by the substitution of the cement with CCP passed from 0.075 mm sieve (5%, 10 % and 15 % by weight), and other three mixtures comprised the replacement of natural sand with CCP of size 0.15−0.075 mm (5%, 10 % and 20 % by weight). A reference mixture (without replacement) was also performed for comparison purposes. The mechanical and water absorption properties were examined. Results indicated that among all tests examined, a sustainable mortar was produced by the substitution of the cement or sand with 10% CCP with an enhancement in the compressive strength without significantly affecting other properties of the mortar.

【 授权许可】

Unknown