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Microwave irradiation reinforcement of weak muddy intercalation in slope
https://orcid.org/0000-0003-4751-8408
Abstract Softening of weak muddy intercalation is one of the most important factors that induces the landslides. Microwave irradiation was introduced to reinforce weak muddy intercalation in the specimens, and these were assessed for their mineralogy, chemical composition, thermal physical properties and micromorphology, mechanical properties and water stability. Microwave irradiation increased the porosity and crack of muddy intercalation, which is beneficial to grouting reinforcement; and water stability above 500 °C was also effectively improved. The maximum peak stress of the dry specimen was 12.31 MPa and the strength loss rate of wet specimen decreased with the increasing temperature. In particular, the strength of the wet specimen was more than that of the dry specimen above 800 °C, with the maximum peak stress was 14.35 MPa. This study demonstrates that use of microwave energy to reinforce weak muddy intercalation contained in a slope is feasible by improving the mechanical strength and water stability of the intercalation, and is more environmentally friendly than traditional methods.
Highlights Microwave irradiation was used to reinforce the weak muddy intercalation. The compressive strengths and water stability of weak muddy intercalation were significantly improved. The strengths of the specimens increased after immersion in water due to the formation of cement silicate hydrates.
Microwave irradiation reinforcement of weak muddy intercalation in slope
https://orcid.org/0000-0003-4751-8408
Abstract Softening of weak muddy intercalation is one of the most important factors that induces the landslides. Microwave irradiation was introduced to reinforce weak muddy intercalation in the specimens, and these were assessed for their mineralogy, chemical composition, thermal physical properties and micromorphology, mechanical properties and water stability. Microwave irradiation increased the porosity and crack of muddy intercalation, which is beneficial to grouting reinforcement; and water stability above 500 °C was also effectively improved. The maximum peak stress of the dry specimen was 12.31 MPa and the strength loss rate of wet specimen decreased with the increasing temperature. In particular, the strength of the wet specimen was more than that of the dry specimen above 800 °C, with the maximum peak stress was 14.35 MPa. This study demonstrates that use of microwave energy to reinforce weak muddy intercalation contained in a slope is feasible by improving the mechanical strength and water stability of the intercalation, and is more environmentally friendly than traditional methods.
Highlights Microwave irradiation was used to reinforce the weak muddy intercalation. The compressive strengths and water stability of weak muddy intercalation were significantly improved. The strengths of the specimens increased after immersion in water due to the formation of cement silicate hydrates.
Microwave irradiation reinforcement of weak muddy intercalation in slope
https://orcid.org/0000-0003-4751-8408
Abstract Softening of weak muddy intercalation is one of the most important factors that induces the landslides. Microwave irradiation was introduced to reinforce weak muddy intercalation in the specimens, and these were assessed for their mineralogy, chemical composition, thermal physical properties and micromorphology, mechanical properties and water stability. Microwave irradiation increased the porosity and crack of muddy intercalation, which is beneficial to grouting reinforcement; and water stability above 500 °C was also effectively improved. The maximum peak stress of the dry specimen was 12.31 MPa and the strength loss rate of wet specimen decreased with the increasing temperature. In particular, the strength of the wet specimen was more than that of the dry specimen above 800 °C, with the maximum peak stress was 14.35 MPa. This study demonstrates that use of microwave energy to reinforce weak muddy intercalation contained in a slope is feasible by improving the mechanical strength and water stability of the intercalation, and is more environmentally friendly than traditional methods.
Highlights Microwave irradiation was used to reinforce the weak muddy intercalation. The compressive strengths and water stability of weak muddy intercalation were significantly improved. The strengths of the specimens increased after immersion in water due to the formation of cement silicate hydrates.
Microwave irradiation reinforcement of weak muddy intercalation in slope
Hu, Qijun (author) / Gu, Yucheng (author) / Zeng, Junsen (author) / He, Leping (author) / Tang, Hexi (author) / Wei, Guilin (author) / Lu, Xirui (author)
Applied Clay Science ; 183
2019-10-03
Article (Journal)
Electronic Resource
English
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