Mehdizadeh, Hamideh and Ling, Tung-Chai and Cheng, Xiongfei and Mo, Kim Hung (2021) Effect of particle size and CO2 treatment of waste cement powder on properties of cement paste. Canadian Journal of Civil Engineering, 48 (5). pp. 522-531. ISSN 0315-1468, DOI https://doi.org/10.1139/cjce-2019-0574.
Full text not available from this repository.Abstract
This paper studies the role of CO2 treatment and the impact of particle size (<75 lm and 75-150 lm) of waste cement powder (WCP) with different cement replacement content (0%, 5%, 10%, 15%, 20%, and 30%) on the physical properties and microstructure of blended cement paste. The results show that carbonation of WCP can effectively increase the flowability of paste due to the formation of calcite and decrease the porosity of WCP microstructure, while the water demand to achieve the same workability decreases with increasing size of WCP particles. Cement paste containing decreased particles of carbonated waste cement powder possesses a higher 28 day compressive strength due to formation of a higher amount of calcite and hydration products, based on the thermogravimetric analysis.
| Item Type: | Article |
|---|---|
| Funders: | UNSPECIFIED |
| Uncontrolled Keywords: | Waste cement powder; CO2 treatment; Particle size; Calcite; Compressive strength; Microstructure |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) |
| Divisions: | Faculty of Engineering > Department of Civil Engineering |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 02 Mar 2022 03:22 |
| Last Modified: | 02 Mar 2022 03:22 |
| URI: | http://eprints.um.edu.my/id/eprint/26428 |
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