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Low melting point alloy modified cement paste with enhanced flexural strength, lower hydration temperature, and improved electrical properties
Xu, Jianyu; Liu, Qing; Guo, Hongda; Wang, Miaomiao; Li, Zongjin; Sun, Guoxing
2022-03-01
Source PublicationComposites Part B: Engineering
ISSN1359-8368
Volume232
Abstract

Concrete usually possesses drawbacks of low flexural strength and prone to crack. In this research, Field's metal with a low melting point was introduced into the cement matrix to improve the crack resistance, thereby enhancing the flexural strength and toughness of cement matrix. A comparative study was conducted to elucidate the effects of the Field's metal on the mechanical behavior, microstructure, capillary permeability, hydration, and electrical properties of cement paste. By tuning the fraction of the Field's metal, the flexural strength and toughness showed the highest increase of 41% and 94%, respectively. The enhancement of flexural properties can be attributed to the filling effect of the low melting metal into the voids in the matrix, bridging effect of metal particles and the higher flexural strength as well as the higher fracture toughness of the metal. This approach opens a new research direction for the design and application of an innovative functional building materials.

KeywordCement-based Composite Field's Metal Flexural Strength Hydration Heat Microstructure
DOI10.1016/j.compositesb.2022.109628
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaEngineeringmaterials Science
WOS SubjectEngineering, Multidisciplinarymaterials Science, Composites
WOS IDWOS:000748437300001
Scopus ID2-s2.0-85122626391
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Cited Times [WOS]:2   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionINSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Corresponding AuthorXu, Jianyu; Li, Zongjin; Sun, Guoxing
AffiliationJoint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade, Taipa, Macau SAR, China
First Author AffilicationINSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Corresponding Author AffilicationINSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Recommended Citation
GB/T 7714
Xu, Jianyu,Liu, Qing,Guo, Hongda,et al. Low melting point alloy modified cement paste with enhanced flexural strength, lower hydration temperature, and improved electrical properties[J]. Composites Part B: Engineering,2022,232.
APA Xu, Jianyu,Liu, Qing,Guo, Hongda,Wang, Miaomiao,Li, Zongjin,&Sun, Guoxing.(2022).Low melting point alloy modified cement paste with enhanced flexural strength, lower hydration temperature, and improved electrical properties.Composites Part B: Engineering,232.
MLA Xu, Jianyu,et al."Low melting point alloy modified cement paste with enhanced flexural strength, lower hydration temperature, and improved electrical properties".Composites Part B: Engineering 232(2022).
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