Zailani, Warid Wazien Ahmad and Apandi, Nazirah Mohd and Adesina, Adeyemi and Alengaram, Ubagaram Johnson and Faris, Meor Ahmad and Tahir, Muhammad Faheem Mohd (2024) Physico-mechanical properties of geopolymer mortars for repair applications: Impact of binder to sand ratio. Construction and Building Materials, 412. ISSN 0950-0618, DOI https://doi.org/10.1016/j.conbuildmat.2023.134721.
Full text not available from this repository.Abstract
Deterioration of concrete structures made with ordinary portland cement (OPC) as a binder is inevitable, and this requires repair or rehabilitation using appropriate repair materials. A strong and highly adhesive repair material is very important in order to ascertain the safety of damaged concrete structures. The existing repair materials, especially those that utilized conventional OPC-based materials, appear to require a certain curing condition, which prior studies have revealed to result in a weak link between the repair material and the repaired structures. Hence, an alternative material which is geopolymer mortar was utilized in this study as a repair material, and the impact of geopolymer mortars with various binder-to-sand ratios was evaluated. The physical and mechanical properties of the geopolymer mortars were assessed in addition to their performance as a repair material in terms of their bonding characteristics to conventional concrete. Findings from this study revealed that geopolymer mortar with a binder-to-sand ratio of 1:2 exhibited the highest bonding strength. In addition, geopolymer mortars with a binder-to-sand ratio of 1:3 to 4:1 exhibited better bonding strength compared to when geopolymer paste was used. © 2024 Elsevier Ltd
| Item Type: | Article |
|---|---|
| Funders: | Universiti Teknologi MARA [Grant no. 023/2023, 100-TNCPI/INT 16/6/2] |
| Uncontrolled Keywords: | Adhesives; Binders; Concrete buildings; Concrete construction; Concretes; Deterioration; Diffusion bonding; Geopolymers; Inorganic polymers; Mortar; Repair; Sand; Bonding strength; Concrete; Damaged concretes; Geopolymer; Geopolymer mortars; Ordinary Portland cement; Physicomechanical properties; Repair applications; Repair materials; Sand ratios; Portland cement |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) T Technology > TJ Mechanical engineering and machinery T Technology > TP Chemical technology |
| Divisions: | Faculty of Engineering > Department of Civil Engineering |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 06 May 2024 02:15 |
| Last Modified: | 06 May 2024 02:15 |
| URI: | http://eprints.um.edu.my/id/eprint/44931 |
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