Mechanical and microstructural properties of phosphate-based geopolymers with varying Si/Al molar ratios based on the sol-gel method
Materials Letters(2022)
Abstract
•Properties of phosphate-based geopolymers with various Si/Al ratios were observed.•Geopolymer exhibited the best mechanical properties when Si/Al ratios is 2.5.•When Si/Al ratios equal 1.5, the geopolymer has the fastest curing speed.•With the climb of aluminum oxide, the geopolymer gradually exhibits expansibility.
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Key words
Geopolymer,Mechanical properties,Microstructure,Polymeric composites
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