Study on the Chloride–Sulfate Resistance of a Metakaolin-Based Geopolymer Mortar

Materials, Journal Year: 2024, Volume and Issue: 17(20), P. 5045 - 5045

Published: Oct. 15, 2024

The chloride-sulfate corrosion environment of concrete is a significant engineering problem. This paper investigates the effect complete/semi-immersion mode on durability in by using different granulated blast furnace slag (GBFS) dosage rates (10-50%) metakaolin (MK)-based geopolymer mortar. discussed analyzing apparent morphology, mass change, and mechanical property change specimens at age 120 d erosion combined with XRD SEM. high Ca content GBFS has an important strength resistance (MGP) group mortar; increase makes MGP mortar denser, initial positively correlated GBFS. After erosion, negatively resistance, groups showing more severe damage. Semi-immersion resulted deterioration immersion-evaporation interface zone due to difference ionic concentration 'wick effect' zone. Compared commonly used OPC mortar, M40 M50 have improved are suitable for environments highly erosive areas.

Language: Английский

Optimization of 3D-printed reinforced concrete beams with four types of reinforced patterns and different distances

Engineering Failure Analysis, Journal Year: 2024, Volume and Issue: unknown, P. 109096 - 109096

Published: Nov. 1, 2024

Language: Английский