Funded by Hubei Provincial Natural Science Foundation of China(No.2016CFB353);the Science and Technology Support Program of Hubei Province(No.2015BCA244);National Natural Science Foundation of China(No.51372076)
Thaumasite form of sulfate attack(TSA) can be observed in cement containing limestone under sulfate condition at low temperature. Mixing with suitable mineral admixture could be a good choice to improve the TSA resi...
Funded by the National Natural Science Foundation of China(Nos.51272222 and 51132010)
Significant efforts have been made in revealing the mechanism of thaumasite formation in concrete, which continues to be fraught with ambiguities and dissension. Chemical method was employed to synthesize pure C3S, C2...
Funded by National Natural Science Foundation of China(No.51378499);China Railway Corporation(No.2014G004-R);Science and Technology of China(No.2010G004-E)
Extensive researches have been carried out on the conventional sulfate attack, while it has been found that the thaumasite form of sulfate attack(TSA), sulfate attack at low temperature, has just been discovered and...
Funded by the National Natural Science Foundation of China(No.51372076);the Project of Science&Technology Department of Hubei Province(No.2014BCB027)
We investigated the effects of different barium compounds on the thaumasite form of sulphate attack(TSA)resistance of cement-based materials when they were used as admixtures in mortars.Moreover,we analyzed the inhi...
Funded by the National Natural Science Foundation of China(No.51109073)
Limestone in cement could be a source of CO3^2- needed for thaumasite formation which will result in thanmasite form of sulfate attack (TSA) probably. TSA has more deterioration than ettringite or gypsum form of sul...
Project(51108463) supported by the National Natural Science Foundation of China;Project(11B041) supported by Scientific Research Fund of Hunan Provincial Education Department of China;Project(NCET-10-0839) supported by Ministry Education of China
The railway tunnel concrete lining exposed to sulfate-bearing groundwater beyond 40 years in southwest of China was investigated. Field investigation, sulfate ions content and corroded products analysis, macro/microsc...
Supported by the Scientific Research Foundation for the Talents of Hohai University(No.20090603);the Fundamental Research Funds for the Central Universities(No.2010B25514);the National Natural Science Foundation of China(No.50979032)
Thaumasite form of sulfate attack(TSA)is a major concern in evaluating durability of concrete structures subjected to sulfate and carbonate ions.By means of Fourier transform infrared spectroscopy (FT-IR),X-ray di...
Mortar prisms made with different cements or mineral admixtures plus 30% mass of limes tone filler were stored in 2% magnesium sulfate solution at 5±1 ℃ for 1 year and their visual appearance,strength development we...