The Experts below are selected from a list of 18531 Experts worldwide ranked by ideXlab platform
Zhanping Song - One of the best experts on this subject based on the ideXlab platform.
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Study of seawater corrosion resistance of Ordinary Portland Cement–aluminate Cement–gypsum mortar containing slag
Advances in Cement Research, 2020Co-Authors: Zhanping Song, Ai Zhang, Shengjun Liu, Jiangbo ZhangAbstract:A repair material for use in the marine environment is developed. The ternary Cementitious system (TCS), which contains Ordinary Portland Cement, calcium aluminate Cement and gypsum, causes rapid h...
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study on a high strength ternary blend containing calcium sulfoaluminate Cement calcium aluminate Cement Ordinary Portland Cement
Construction and Building Materials, 2018Co-Authors: Junjie Zhang, Xiaofeng Yang, Shuangqian Ren, Zhanping SongAbstract:Abstract Repair mortars containing calcium sulfoaluminate Cement (CSA), calcium aluminate Cement (CAC) and Ordinary Portland Cement (OPC) was prepared. The effects of binder proportion on the mechanical properties of ternary blends were researched. Moreover, the hydration products and microstructure of that were observed by XRD, TG, and SEM. Results showed that the addition of CAC-OPC can accelerate the setting of CSA and enhance its early strength, which is mainly contributed to the rapid formation of massive ettringite. The strength of ternary blends continues to increase with time resulted from the decrease of porosity. Moreover, the microstructure of ettringite in CSA is significantly affected by the presence of CAC and OPC.
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Effects of Ordinary Portland Cement on the early properties and hydration of calcium sulfoaluminate Cement
Construction and Building Materials, 2018Co-Authors: Junjie Zhang, Yuzhen Chang, Wenting Ye, Guoxin Li, Qingfeng Liu, Zhanping SongAbstract:Ordinary Portland Cement (OPC) was used to enhance the early performances of calcium sulfoaluminate Cement (CSA), and the hydration process of CSA-OPC composite was researched by XRD, TG, and SEM. Results showed that the rapid setting and high early strength of CSA can be achieved by the addition of 10–20 wt% OPC. The addition of OPC can evidently increase the ettringite content of CSA at early age, and change the morphology of ettringite significantly related to its high pH value. The difference of ettringite from CSA to CSA-OPC composite was mainly contributed to the presence of lime.
Junjie Zhang - One of the best experts on this subject based on the ideXlab platform.
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study on a high strength ternary blend containing calcium sulfoaluminate Cement calcium aluminate Cement Ordinary Portland Cement
Construction and Building Materials, 2018Co-Authors: Junjie Zhang, Xiaofeng Yang, Shuangqian Ren, Zhanping SongAbstract:Abstract Repair mortars containing calcium sulfoaluminate Cement (CSA), calcium aluminate Cement (CAC) and Ordinary Portland Cement (OPC) was prepared. The effects of binder proportion on the mechanical properties of ternary blends were researched. Moreover, the hydration products and microstructure of that were observed by XRD, TG, and SEM. Results showed that the addition of CAC-OPC can accelerate the setting of CSA and enhance its early strength, which is mainly contributed to the rapid formation of massive ettringite. The strength of ternary blends continues to increase with time resulted from the decrease of porosity. Moreover, the microstructure of ettringite in CSA is significantly affected by the presence of CAC and OPC.
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Effects of Ordinary Portland Cement on the early properties and hydration of calcium sulfoaluminate Cement
Construction and Building Materials, 2018Co-Authors: Junjie Zhang, Yuzhen Chang, Wenting Ye, Guoxin Li, Qingfeng Liu, Zhanping SongAbstract:Ordinary Portland Cement (OPC) was used to enhance the early performances of calcium sulfoaluminate Cement (CSA), and the hydration process of CSA-OPC composite was researched by XRD, TG, and SEM. Results showed that the rapid setting and high early strength of CSA can be achieved by the addition of 10–20 wt% OPC. The addition of OPC can evidently increase the ettringite content of CSA at early age, and change the morphology of ettringite significantly related to its high pH value. The difference of ettringite from CSA to CSA-OPC composite was mainly contributed to the presence of lime.
Shuangqian Ren - One of the best experts on this subject based on the ideXlab platform.
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study on a high strength ternary blend containing calcium sulfoaluminate Cement calcium aluminate Cement Ordinary Portland Cement
Construction and Building Materials, 2018Co-Authors: Junjie Zhang, Xiaofeng Yang, Shuangqian Ren, Zhanping SongAbstract:Abstract Repair mortars containing calcium sulfoaluminate Cement (CSA), calcium aluminate Cement (CAC) and Ordinary Portland Cement (OPC) was prepared. The effects of binder proportion on the mechanical properties of ternary blends were researched. Moreover, the hydration products and microstructure of that were observed by XRD, TG, and SEM. Results showed that the addition of CAC-OPC can accelerate the setting of CSA and enhance its early strength, which is mainly contributed to the rapid formation of massive ettringite. The strength of ternary blends continues to increase with time resulted from the decrease of porosity. Moreover, the microstructure of ettringite in CSA is significantly affected by the presence of CAC and OPC.
Xiaofeng Yang - One of the best experts on this subject based on the ideXlab platform.
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study on a high strength ternary blend containing calcium sulfoaluminate Cement calcium aluminate Cement Ordinary Portland Cement
Construction and Building Materials, 2018Co-Authors: Junjie Zhang, Xiaofeng Yang, Shuangqian Ren, Zhanping SongAbstract:Abstract Repair mortars containing calcium sulfoaluminate Cement (CSA), calcium aluminate Cement (CAC) and Ordinary Portland Cement (OPC) was prepared. The effects of binder proportion on the mechanical properties of ternary blends were researched. Moreover, the hydration products and microstructure of that were observed by XRD, TG, and SEM. Results showed that the addition of CAC-OPC can accelerate the setting of CSA and enhance its early strength, which is mainly contributed to the rapid formation of massive ettringite. The strength of ternary blends continues to increase with time resulted from the decrease of porosity. Moreover, the microstructure of ettringite in CSA is significantly affected by the presence of CAC and OPC.
Jan Olek - One of the best experts on this subject based on the ideXlab platform.
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Effects of Curing Conditions on the Properties of Ternary (Ordinary Portland Cement/Fly Ash/Silica Fume) Concrete
Aci Materials Journal, 2015Co-Authors: Mateusz Radlinski, Jan OlekAbstract:This paper presents the effects of various curing methods that are frequently encountered in the field on several properties of ternary (Ordinary Portland Cement/Fly Ash/Silica Fume) concrete mixtures containing Ordinary Portland Cement (OPC), 20 or 30% of Class C fly ash (FA), and 5 or 7% of silica fume (SF). The curing conditions evaluated in the study included: air drying (absence of wet burlap, plastic sheet, or curing compound), 7-day curing compound application, 3-day curing under wet burlap, and 7-day curing under wet burlap. The properties studied at both early and late ages included compressive strength, salt scaling resistance, resistance to chloride ion penetration (RCP), initial rate of absorption (sorptivity), and free shrinkage. The analysis of variance (ANOVA) analysis was performed to identify statistically significant differences in the test results for the different curing conditions. In addition, the impact of curing conditions on the respective properties was compared in the quantitative manner.
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effects of curing conditions on the properties of ternary Ordinary Portland Cement fly ash silica fume concrete
Aci Materials Journal, 2015Co-Authors: Mateusz Radlinski, Jan OlekAbstract:This paper presents the effects of various curing methods that are frequently encountered in the field on several properties of ternary (Ordinary Portland Cement/Fly Ash/Silica Fume) concrete mixtures containing Ordinary Portland Cement (OPC), 20 or 30% of Class C fly ash (FA), and 5 or 7% of silica fume (SF). The curing conditions evaluated in the study included: air drying (absence of wet burlap, plastic sheet, or curing compound), 7-day curing compound application, 3-day curing under wet burlap, and 7-day curing under wet burlap. The properties studied at both early and late ages included compressive strength, salt scaling resistance, resistance to chloride ion penetration (RCP), initial rate of absorption (sorptivity), and free shrinkage. The analysis of variance (ANOVA) analysis was performed to identify statistically significant differences in the test results for the different curing conditions. In addition, the impact of curing conditions on the respective properties was compared in the quantitative manner.