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A platform for research: civil engineering, architecture and urbanism
Experimental investigation on the hydraulic fracturing of cement mortar attacked by sulfate solutions with different pH values
Cement-based materials undergo deterioration in a sulfate environment with different pH values. This work aimed to investigate the performance of cement mortar against hydraulic fracturing exposed to sulfate environment with different pH values. For this purpose, a series of hydraulic fracturing tests and compressive strength tests on the cement mortar immersed in sulfate solutions with different pH values under different exposure periods are performed. The results showed different chemical solutions have different influences on the mechanical properties and hydraulic fracturing properties of the cement mortar specimens. After being attacked for 270 days by sodium sulfate solutions with pH values of 7 and 3, the corresponding mortar specimens exhibited critical water pressures, were 48.5% and 57.5% lower than that in their natural states, respectively. Under a sodium sulfate solution with a pH of 1, the critical water pressure of the mortar specimen decreased, the prefabricated crack on the mortar specimen was deteriorated severely after 270 days of immersion, and its resistance to hydraulic fracturing was almost lost.
Experimental investigation on the hydraulic fracturing of cement mortar attacked by sulfate solutions with different pH values
Cement-based materials undergo deterioration in a sulfate environment with different pH values. This work aimed to investigate the performance of cement mortar against hydraulic fracturing exposed to sulfate environment with different pH values. For this purpose, a series of hydraulic fracturing tests and compressive strength tests on the cement mortar immersed in sulfate solutions with different pH values under different exposure periods are performed. The results showed different chemical solutions have different influences on the mechanical properties and hydraulic fracturing properties of the cement mortar specimens. After being attacked for 270 days by sodium sulfate solutions with pH values of 7 and 3, the corresponding mortar specimens exhibited critical water pressures, were 48.5% and 57.5% lower than that in their natural states, respectively. Under a sodium sulfate solution with a pH of 1, the critical water pressure of the mortar specimen decreased, the prefabricated crack on the mortar specimen was deteriorated severely after 270 days of immersion, and its resistance to hydraulic fracturing was almost lost.
Experimental investigation on the hydraulic fracturing of cement mortar attacked by sulfate solutions with different pH values
Advances in Engineering res
Bilgin, Hüseyin (editor) / Wen, Jiwei (editor) / Rahhal, Muhsin Elie (editor) / Liu, Detan (author)
International Conference on Civil Engineering, Environment Resources and Energy Materials ; 2023 ; Xiamen, China
2023-12-14
8 pages
Article/Chapter (Book)
Electronic Resource
English
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