MITIGATING WORKABILITY LOSS AND SHRINKAGE IN CEMENT PASTE WITH THERMO-RESPONSIVE PNIPAM HYDROGELS

Ahmed, Mohanadas and Micheal, James and Yi-, jun and Yu, jun (2024) MITIGATING WORKABILITY LOSS AND SHRINKAGE IN CEMENT PASTE WITH THERMO-RESPONSIVE PNIPAM HYDROGELS. Journal of Engineering, Mechanics and Modern Architecture, 3 (7). pp. 55-63. ISSN 2181-4384

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Abstract

The construction industry continually seeks innovative solutions to enhance the performance of cement paste, a critical component in concrete structures. This study explores the use of thermo-responsive poly (N-isopropylacrylamide) (PNIPAM) hydrogels to address two prevalent issues: workability loss and shrinkage in cement paste. PNIPAM hydrogels exhibit unique phase transition behavior at their Lower Critical Solution Temperature (LCST), which enables them to modulate water retention and release in response to temperature changes. Through a comprehensive experimental approach, we evaluated the impact of PNIPAM hydrogels on cement paste workability and shrinkage. The results demonstrated significant improvements in fluidity and mixing ease, as well as notable reductions in plastic, drying, and autogenous shrinkage. Comparative analysis with traditional additives revealed the superior performance of PNIPAM hydrogels in maintaining workability and enhancing durability. This study underscores the potential of PNIPAM hydrogels to revolutionize concrete technology, offering practical applications for precast elements and high-performance concrete mixtures while contributing to cost-efficiency and sustainability in construction. Future research should focus on optimizing hydrogel formulations, conducting long-term durability assessments, and exploring integration with other advanced materials and technologies.

Item Type:	Article
Subjects:	T Technology > TA Engineering (General). Civil engineering (General)
Divisions:	Postgraduate > Master's of Islamic Education
Depositing User:	Journal Editor
Date Deposited:	15 Aug 2024 04:35
Last Modified:	15 Aug 2024 04:35
URI:	http://eprints.umsida.ac.id/id/eprint/13940

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