Preparation methodology and performance of methyl methacrylate modified unsaturated polyester resin mortar for thin layer repair
Source abstract
Abstract
The airport pavement will be gradually damaged, seriously affecting the takeoff and landing of aircraft. . This study developed methyl methacrylate (MMA) modified unsaturated polyester resin (UPR) mortar as a high-performance and low-cost thin layer repair material for airport pavement. Firstly, the optimum formula of repair mortar was determined according to the influences of the formula on its many properties. Subsequently, the performance and interlayer bonding strength of MMA modified UPR mortar were evaluated and compared with that of pure UPR mortar and acrylic resin mortar. Lastly, the modification mechanism was explored using SEM and FTIR. The results indicate that the optimal gradation index of MMA modified UPR mortar is 0.3, with an optimal sand-binder ratio of 1.4, and the optimal contents of MMA, initiator, accelerator, diluent and plasticiser of 15%, 1%, 1%, 10% and 1.5% of the resin mass, respectively. Compared with pure UPR mortar, the performance of MMA modified UPR mortar has been greatly improved. Compared with acrylic resin mortar, the performance of MMA modified UPR mortar also shows greater superiority. Due to the interpenetrating network structure formed by chemical reaction between MMA and UPR, the fracture mode of UPR changes from brittle fracture to ductile fracture.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Magnesium Oxide Properties and Applications · Concrete and Cement Materials Research · Innovative concrete reinforcement materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Chang'an University
The Second Construction Limited Company of China Construction Eighth Engineering Division
Henan Communications Planning & Design Institute Co., Ltd
Dongying Highway Survey and Design Institute Co., Ltd
Funding
Research project of Guangxi Communications Investment Group Co., LTD · Transportation Research Project of the Transportation Department in Shaanxi Province · Project of Shandong Department of Transportation · Transportation Science and Technology Project of Fujian Province
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