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Advances in Concrete Construction Volume 10, Number 5, November 2020 , pages 393-402 DOI: https://doi.org/10.12989/acc.2020.10.5.393 |
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Influence of porosity and cement grade on concrete mechanical properties |
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Jiandong Huang, Rayed Alyousef, Meldi Suhatril, Shahrizan Baharom, Hisham Alabduljabbar, Abdulaziz Alaskar and Hamid Assilzadeh
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| Abstract | ||
| The given research focuses on examining the effect of relatively humidity (RH) and curing temperature on the hydrates as well as the porosity of calcium sulfoaluminate (CSA) cement pastes. Numerous tests, which consist of mercury intrusion porosimetry (MIP), thermosgravi metric (TG) and X-ray diffraction (XRD) were conducted. Various characterization techniques which include, scanning electron microscopy, Fourier transform microscopy along with X-ray diffraction evaluations were conducted on the samples to examine phase formation and crystallinity, morphology and microstructure along with bond formations and functional groups, respectively. During long-term study, the performance of concrete which consisted of limestone and flash-calcined was close to those from standard Portland cement concrete. Traditional classifications and methods of corrosion were widely used for the assessment of steel in concrete which may get employed to concrete which contains LC3 to recalibrate the range of polarization resistance for passitivity condition. For example, there is up to 79.5% and 146% respective flexural and compressive strengths. Moreover, they developed more advance electrical and thermo-mechanical performance with a substantial reduction in absorption of water of close to 400%. These advantages allow this research crucial to evaluate how these methods can be applied. Additionally, the research evaluates developed and more advanced cement preservation and repair techniques. The conclusion suggests concerted efforts by various stakeholders such as policy makers to enable low-carbon rates. | ||
| Key Words | ||
| cement; concrete; XRD; flexural strength; preservation techniques; crystallinity; polarization resistance | ||
| Address | ||
| Jiandong Huang: School of Mines, China University of Mining and Technology, Xuzhou, China Rayed Alyousef: Department of Civil Engineering, College of Engineering, Prince Sattam bin Abdulaziz University, Al-kharj 11942, Saudi Arabia Meldi Suhatril: Department of Civil Engineering, Faculty of Engineering, University of Malaya, 50603, Kuala Lumpur, Malaysia Shahrizan Baharom: Department of Civil Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, UKM, 43600, Bangi, Selangor, Malaysia Hisham Alabduljabbar: Department of Civil Engineering, College of Engineering, Prince Sattam bin Abdulaziz University, Al-kharj 11942, Saudi Arabia Abdulaziz Alaskar: Department of Civil Engineering, College of Engineering, King Saud University, Riyadh 11362, Saudi Arabia Hamid Assilzadeh: Institute of Research and Development, Duy Tan University, Da Nang 550000, Vietnam | ||
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