Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Hydration and mechanical properties of cement-marble powder system incorporating triisopropanolamine
Highlights TIPA promoted the hydration of Portland cement. TIPA facilitated the formation of calcium aluminocarbonate in cement-MP system. TIPA promoted the mechanical strength of cement-MP mortar.
Abstract This study aimed to improve the mechanical properties of cement-marble powder (MP) mortar by incorporating triisopropanolamine (TIPA) to promote the optimal utilization of marble waste. In this research, the workability, compressive strength, capillary water absorption, hydration process and microstructure of cement-MP system were investigated. From the experimental results, it was found that the incorporation of TIPA enhanced the mechanical strength of cement-MP mortar. Moreover, the capillary water absorption of cement-MP mortar was improved when the TIPA dosage exceeded 0.06%. The enhancement of these properties was mainly due to the acceleration effect of TIPA on the cement-MP system hydration process, despite the fact that its air entraining effect would have a negative effect. Incorporating TIPA in cement-MP system accelerated the dissolution of Fe3+ ions in ferrite phase to promote the hydration of cement, which certainly facilitated the consumption of SO4 2− ions, thus promoting the formation of calcium aluminocarbonate. Additionally, no obvious difference was observed in the workability and setting characteristics between cement-MP system with and without TIPA.
Hydration and mechanical properties of cement-marble powder system incorporating triisopropanolamine
Highlights TIPA promoted the hydration of Portland cement. TIPA facilitated the formation of calcium aluminocarbonate in cement-MP system. TIPA promoted the mechanical strength of cement-MP mortar.
Abstract This study aimed to improve the mechanical properties of cement-marble powder (MP) mortar by incorporating triisopropanolamine (TIPA) to promote the optimal utilization of marble waste. In this research, the workability, compressive strength, capillary water absorption, hydration process and microstructure of cement-MP system were investigated. From the experimental results, it was found that the incorporation of TIPA enhanced the mechanical strength of cement-MP mortar. Moreover, the capillary water absorption of cement-MP mortar was improved when the TIPA dosage exceeded 0.06%. The enhancement of these properties was mainly due to the acceleration effect of TIPA on the cement-MP system hydration process, despite the fact that its air entraining effect would have a negative effect. Incorporating TIPA in cement-MP system accelerated the dissolution of Fe3+ ions in ferrite phase to promote the hydration of cement, which certainly facilitated the consumption of SO4 2− ions, thus promoting the formation of calcium aluminocarbonate. Additionally, no obvious difference was observed in the workability and setting characteristics between cement-MP system with and without TIPA.
Hydration and mechanical properties of cement-marble powder system incorporating triisopropanolamine
Wang, Jie (Autor:in) / Ma, Baoguo (Autor:in) / Tan, Hongbo (Autor:in) / Du, Chao (Autor:in) / Chu, Zhugen (Autor:in) / Luo, Zhongtao (Autor:in) / Wang, Penggang (Autor:in)
18.09.2020
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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