Bond properties of cement stone and metakaolin-based geopolymer blended with expansive agent
Source abstract
Abstract
Metakaolin-based geopolymers (MKGs) containing different contents of MS expansive agents (EAs) were prepared by alkali activation. Different mechanical testing methods for differently shaped samples were used to evaluate the bond properties of the MKGs. A cement substrate with a circular hole in the middle was used as a permeability test specimen to assess bond by checking the bond appearance and testing the permeability. According to the results of the mechanical properties and penetration tests, the MKG with 4% MS-3 exhibited the best bond properties. The EAs significantly improved the expansion properties and reduced the tensile stress at the interface; these were the main reasons for the improvement in bond properties between the MKG and cement stone. Favourable bond property is an important basis for MKG as an inorganic crack repair material.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Concrete and Cement Materials Research · Magnesium Oxide Properties and Applications · Innovative concrete reinforcement materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Doctoral candidate, College of Civil Science and Engineering, Yangzhou University, Yangzhou, China
Professor, School of Materials Science and Engineering, Yancheng Institute of Technology, Yancheng, China (corresponding author: )
Master, School of Materials Science and Engineering, Yancheng Institute of Technology, Yancheng, China
Professor, School of Materials Science and Engineering, Yancheng Institute of Technology, Yancheng, China
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