The Effects of Modified Chitosan on the Physicomechanical Properties of Mortar
Bekbayeva L. Negim E.-S. Niyazbekova R. Kaliyeva Z. Yeligbayeva G. Khatib J.
2022Faculty of Engineering, Universitas Indonesia
International Journal of Technology
2022#13Issue 1125 - 135 pp.
This paper reports a study on producing admixtures from chitosan (Ch) obtained from shrimp shell treatment. The admixtures (Ch-g-AA) were based on chitosan (Ch) and acrylic acid (AA) in the following composition ratios: 65/35, 50/50, and 35/65. The grafted copolymers were synthesized using grafting polymerization and potassium persulphate as the initiator. This study investigated the properties of mortars in the presence of grafted copolymers, including setting time, workability, water absorption, and compressive strength. The results showed that grafted copolymers premixed with mortar mixes improved the properties of the mortar. However, increasing the AA ratio in the grafted copolymer decreased the W/C ratio, setting time, and water absorption, whereas the fluidity and compressive strength increased.
Acrylic acid , Chitosan , Copolymer , Grafted , Mortar
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School of Chemical and Biological Technologies, Satbayev University, 22 Satpayev Street, Almaty, 050013, Kazakhstan
Laboratory of Advanced Materials and Technology, Kazakh-British Technical University, 59 Tole bi St., Almaty, 050000, Kazakhstan
Technical Faculty, Saken Seifullin Kazakh Agro Technical University, Zhenis avenue, 62, Astana, 010011, Kazakhstan
Technology of Industrial and Civil Building, L.N. Gumilyov Eurasian National University, Str. Satpayev 2, Astana, Kazakhstan
School of Petroleum Engineering, Satbayev University, 22 Satpayev Street, Almaty, 050013, Kazakhstan
Faculty of Engineering, Beirut Arab University, Beirut, Lebanon
School of Chemical and Biological Technologies
Laboratory of Advanced Materials and Technology
Technical Faculty
Technology of Industrial and Civil Building
School of Petroleum Engineering
Faculty of Engineering
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