The Experts below are selected from a list of 5133 Experts worldwide ranked by ideXlab platform
Peiyu Yan - One of the best experts on this subject based on the ideXlab platform.
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Effects of Blended Steel Slag-Superfine Fly Ash Mineral Admixture and Ordinary Fly Ash on the Properties of Concrete
Materials Science Forum, 2013Co-Authors: Qiang Wang, Peiyu Yan, Reng Guang LiuAbstract:The effects of blended steel slag-superfine fly ash Mineral Admixture and ordinary fly ash on the properties of concrete were compared in this study. The results show that, in the case of the same adding amount, blended steel slag-superfine fly ash Mineral Admixture and ordinary fly ash have similar effects on the early strength and chloride ion permeability of concrete. Blended Mineral Admixture has higher ability to improve the late strength of concrete than ordinary fly ash. Paste and concrete containing blended Mineral Admixture have smaller porosities than that containing ordinary fly ash. Blended steel slag-superfine fly ash is an ideal Mineral Admixture for concrete.
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effect of blended steel slag gbfs Mineral Admixture on hydration and strength of cement
Construction and Building Materials, 2012Co-Authors: Qiang Wang, Peiyu YanAbstract:Abstract The possibility of using steel slag and granulated blast furnace slag (GBFS) as a blended Mineral Admixture for concrete is investigated. The results show that GBFS can weaken the negative effects of steel slag on the properties of concrete, such as decrease of the strength and introduction of harmful pores. The steel slag–GBFS blended Mineral Admixture containing 30–50% steel slag can enable the mortar to have a satisfactory strength. Steel slag has an excellent ability to retard the setting time, decrease hydration heat, and improve the fluidity of concrete comparing with GBFS. The blended Mineral Admixture composed of 50% steel slag and 50% GBFS is more efficient than fly ash in decreasing the early hydration heat of binder. Steel slag and GBFS are mutually complementary in many properties, and an ideal blended Mineral Admixture which endows the concrete satisfactory strength, long setting time, low hydration heat, and good fluidity can be obtained by mixing steel slag and GBFS at proper ratios.
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Effect of blended steel slag–GBFS Mineral Admixture on hydration and strength of cement
Construction and Building Materials, 2012Co-Authors: Qiang Wang, Peiyu YanAbstract:Abstract The possibility of using steel slag and granulated blast furnace slag (GBFS) as a blended Mineral Admixture for concrete is investigated. The results show that GBFS can weaken the negative effects of steel slag on the properties of concrete, such as decrease of the strength and introduction of harmful pores. The steel slag–GBFS blended Mineral Admixture containing 30–50% steel slag can enable the mortar to have a satisfactory strength. Steel slag has an excellent ability to retard the setting time, decrease hydration heat, and improve the fluidity of concrete comparing with GBFS. The blended Mineral Admixture composed of 50% steel slag and 50% GBFS is more efficient than fly ash in decreasing the early hydration heat of binder. Steel slag and GBFS are mutually complementary in many properties, and an ideal blended Mineral Admixture which endows the concrete satisfactory strength, long setting time, low hydration heat, and good fluidity can be obtained by mixing steel slag and GBFS at proper ratios.
Qiang Wang - One of the best experts on this subject based on the ideXlab platform.
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Activity Index of Steel Slag-GGBS Composite Mineral Admixture at Different W/B Ratios
Applied Mechanics and Materials, 2014Co-Authors: Qiang Wang, Shuhua LiuAbstract:The activity index of steel slag-GGBS composite Mineral Admixture with different steel slag contents at the W/B of 0.3, 0.4, and 0.5 was investigated. The results show that the activity index of the composite Mineral Admixture with higher GGBS content is larger, and this phenomenon is more obvious at later ages. At lower W/B, the gap of activity index of different composite Mineral Admixtures is smaller. The activity index of each composite Mineral Admixture is higher at lower W/B and at later age. The steel slag-GGBS composite Mineral Admixture is more suitable to be used in high strength concrete than in low strength concrete. As far as the long-term properties of concrete are concerned, the activity index of the composite Mineral Admixture at the late age should be adopted.
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Effects of Blended Steel Slag-Superfine Fly Ash Mineral Admixture and Ordinary Fly Ash on the Properties of Concrete
Materials Science Forum, 2013Co-Authors: Qiang Wang, Peiyu Yan, Reng Guang LiuAbstract:The effects of blended steel slag-superfine fly ash Mineral Admixture and ordinary fly ash on the properties of concrete were compared in this study. The results show that, in the case of the same adding amount, blended steel slag-superfine fly ash Mineral Admixture and ordinary fly ash have similar effects on the early strength and chloride ion permeability of concrete. Blended Mineral Admixture has higher ability to improve the late strength of concrete than ordinary fly ash. Paste and concrete containing blended Mineral Admixture have smaller porosities than that containing ordinary fly ash. Blended steel slag-superfine fly ash is an ideal Mineral Admixture for concrete.
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effect of blended steel slag gbfs Mineral Admixture on hydration and strength of cement
Construction and Building Materials, 2012Co-Authors: Qiang Wang, Peiyu YanAbstract:Abstract The possibility of using steel slag and granulated blast furnace slag (GBFS) as a blended Mineral Admixture for concrete is investigated. The results show that GBFS can weaken the negative effects of steel slag on the properties of concrete, such as decrease of the strength and introduction of harmful pores. The steel slag–GBFS blended Mineral Admixture containing 30–50% steel slag can enable the mortar to have a satisfactory strength. Steel slag has an excellent ability to retard the setting time, decrease hydration heat, and improve the fluidity of concrete comparing with GBFS. The blended Mineral Admixture composed of 50% steel slag and 50% GBFS is more efficient than fly ash in decreasing the early hydration heat of binder. Steel slag and GBFS are mutually complementary in many properties, and an ideal blended Mineral Admixture which endows the concrete satisfactory strength, long setting time, low hydration heat, and good fluidity can be obtained by mixing steel slag and GBFS at proper ratios.
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Effect of blended steel slag–GBFS Mineral Admixture on hydration and strength of cement
Construction and Building Materials, 2012Co-Authors: Qiang Wang, Peiyu YanAbstract:Abstract The possibility of using steel slag and granulated blast furnace slag (GBFS) as a blended Mineral Admixture for concrete is investigated. The results show that GBFS can weaken the negative effects of steel slag on the properties of concrete, such as decrease of the strength and introduction of harmful pores. The steel slag–GBFS blended Mineral Admixture containing 30–50% steel slag can enable the mortar to have a satisfactory strength. Steel slag has an excellent ability to retard the setting time, decrease hydration heat, and improve the fluidity of concrete comparing with GBFS. The blended Mineral Admixture composed of 50% steel slag and 50% GBFS is more efficient than fly ash in decreasing the early hydration heat of binder. Steel slag and GBFS are mutually complementary in many properties, and an ideal blended Mineral Admixture which endows the concrete satisfactory strength, long setting time, low hydration heat, and good fluidity can be obtained by mixing steel slag and GBFS at proper ratios.
Baoguo Han - One of the best experts on this subject based on the ideXlab platform.
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in situ growth of carbon nanotubes carbon nanofibers on cement Mineral Admixture particles a review
Construction and Building Materials, 2013Co-Authors: Shengwei Sun, Baoguo HanAbstract:Abstract Carbon nanotubes (CNTs) and carbon nanofibers (CNFs) are beneficial reinforcement materials for high-performance and multifunctional cement-based composites. However, it is difficult to uniformly disperse CNTs/CNFs in cement-based composite during the composite fabrication process due to CNTs/CNFs aggregation. The in situ growth of CNTs/CNFs on cement/Mineral Admixture provides a new method to solve this issue. This article summarizes the methods and theories of in situ growth of CNTs/CNFs on cement/Mineral Admixture, including chemical vapor deposition method and microwave irradiating conductive polymers method. Properties of the cement-based composites made from the CNTs/CNFs-grown cement/Mineral Admixture are presented. The issues about the in situ growth of CNTs/CNFs on cement/Mineral Admixture that needed to be further studied are discussed.
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In situ growth of carbon nanotubes/carbon nanofibers on cement/Mineral Admixture particles: A review
Construction and Building Materials, 2013Co-Authors: Shengwei Sun, Baoguo HanAbstract:Abstract Carbon nanotubes (CNTs) and carbon nanofibers (CNFs) are beneficial reinforcement materials for high-performance and multifunctional cement-based composites. However, it is difficult to uniformly disperse CNTs/CNFs in cement-based composite during the composite fabrication process due to CNTs/CNFs aggregation. The in situ growth of CNTs/CNFs on cement/Mineral Admixture provides a new method to solve this issue. This article summarizes the methods and theories of in situ growth of CNTs/CNFs on cement/Mineral Admixture, including chemical vapor deposition method and microwave irradiating conductive polymers method. Properties of the cement-based composites made from the CNTs/CNFs-grown cement/Mineral Admixture are presented. The issues about the in situ growth of CNTs/CNFs on cement/Mineral Admixture that needed to be further studied are discussed.
Shengwei Sun - One of the best experts on this subject based on the ideXlab platform.
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in situ growth of carbon nanotubes carbon nanofibers on cement Mineral Admixture particles a review
Construction and Building Materials, 2013Co-Authors: Shengwei Sun, Baoguo HanAbstract:Abstract Carbon nanotubes (CNTs) and carbon nanofibers (CNFs) are beneficial reinforcement materials for high-performance and multifunctional cement-based composites. However, it is difficult to uniformly disperse CNTs/CNFs in cement-based composite during the composite fabrication process due to CNTs/CNFs aggregation. The in situ growth of CNTs/CNFs on cement/Mineral Admixture provides a new method to solve this issue. This article summarizes the methods and theories of in situ growth of CNTs/CNFs on cement/Mineral Admixture, including chemical vapor deposition method and microwave irradiating conductive polymers method. Properties of the cement-based composites made from the CNTs/CNFs-grown cement/Mineral Admixture are presented. The issues about the in situ growth of CNTs/CNFs on cement/Mineral Admixture that needed to be further studied are discussed.
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In situ growth of carbon nanotubes/carbon nanofibers on cement/Mineral Admixture particles: A review
Construction and Building Materials, 2013Co-Authors: Shengwei Sun, Baoguo HanAbstract:Abstract Carbon nanotubes (CNTs) and carbon nanofibers (CNFs) are beneficial reinforcement materials for high-performance and multifunctional cement-based composites. However, it is difficult to uniformly disperse CNTs/CNFs in cement-based composite during the composite fabrication process due to CNTs/CNFs aggregation. The in situ growth of CNTs/CNFs on cement/Mineral Admixture provides a new method to solve this issue. This article summarizes the methods and theories of in situ growth of CNTs/CNFs on cement/Mineral Admixture, including chemical vapor deposition method and microwave irradiating conductive polymers method. Properties of the cement-based composites made from the CNTs/CNFs-grown cement/Mineral Admixture are presented. The issues about the in situ growth of CNTs/CNFs on cement/Mineral Admixture that needed to be further studied are discussed.
Li Dong-xu - One of the best experts on this subject based on the ideXlab platform.
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Research on Feasibility of Using Steel Slag as Mineral Admixture in Concrete
Bulletin of the Chinese ceramic society, 2011Co-Authors: Li Dong-xuAbstract:The Mineral Admixture can reduce the pore porosity and improve the chloride ion permeability of concrete.The influence of steel slag as Mineral Admixture on mechanical properties and chloride ion permeability of concrete were studied,and the reaction mechanism of steel slag in concrete was discussed in this paper.The results showed that the concrete doped with steel slag and fly ash can increase the compressive strength of concrete;and with the steel slag content increased,the slump and the chloride ion permeability of concrete decreased;after compound of steel slag and fly ash,the chloride ion permeability of concrete is improved;when the content of the steel slag and fly ash Admixture is 50%(mass fraction) in concrete,the permeability of chloride ion is better in this experiment.
