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Journal of Wuhan University of Technology(Materials Science) 2023年第5期38卷 1096-1104页

作者： WANG Yefei YUAN Yan YANG Lihong LIU Yong CHEN Yiwen College of Civil Engineering Fuzhou UniversityFuzhou 350108China Fujian Road&Bridge Construction Co. LtdFuzhou 350108China

In order to evaluate the feasibility of steel slag powder as filler,the coating properties of steel slag and limestone aggregate were compared by water boiling test,the micro morphology difierences between steel slag powder and mineral powder(limestone powder)were compared by scanning electron microscope(SEM),and the high-temperature rheological properties of asphalt mortar with difierent ratio of filler quality to asphalt quality(F/A)and difierent substitution rates of mineral powder(S/F)were studied by dynamic shear rheological test.The results show that the surface microstructure of steel slag powder is more abundant than that of mineral powder,and the adhesion of steel slag to asphalt is better than that of limestone.At the same temperature,the lower the ratio of S/F is,the greater the rutting factor and complex modulus will be.In addition,the complex modulus and rutting factor of the asphalt mortar increase with the increase of F/A,and the filler type and F/A have a negligible efiect on the phase angle.

关键词： steel slag powder asphalt mortar microcosmic adhesion high-temperature rheological properties

Experimental Research of Concrete with steel slag powder and Zeolite powder

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Journal of Renewable Materials 2020年第12期8卷 1647-1655页

作者： Yang Ming Ping Chen Yuanhao Wang Ling Li Xuandong Chen Pengliang Sun Guangxi Key Laboratory of New Energy and Building Energy Saving Guilin541004China College of Civil and Architecture Engineering Guilin University of TechnologyGuilin541004China Guangxi Beibu Gulf Engineering Research Center for Green Marine Materials Guilin541004China School of Chemical Science and Technology Yunnan UniversityKunming650091China

In order to increase use ratio of steel slag solid waste,the concrete containing steel slag powder and zeolite powder as admixtures was prepared by using the orthogonal test method.The effects of water-binder ratio,sand ratio,steel slag powder content and zeolite powder on working properties,mechanical strength and chloride ion permeability of the concrete was studied.It was found that the early strength of the concrete had a decrease with the mixing of steel slag and zeolite powders,but its later strength approached to pure concrete.Moreover,the physical filling and pozzolanic activity of the admixtures increased the density of the concrete,resulting in the improvement of the durability of the concrete by the migration speed of Cl−reducing.The optimum mix ratio of C40 steel slag powder-zeolite powder concrete is obtained,and which had the slump of 220 mm,the 3 d,7 d and 28 d compressive strengths of 27.8 MPa,37.5 MPa and 48.4 MPa,the 6 h electric flux of 950 C and the diffusion coefficient of 1.65×10−12 m2/s.

关键词： Concrete steel slag powder zeolite powder compressive strength chloride ion permeability

Preparation of Reactive powder Concrete Using Fly Ash and steel slag powder

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Journal of Wuhan University of Technology(Materials Science) 2010年第2期25卷 349-354页

作者：彭艳周 College of Hydraulic & Enviormental Engineering China Three Gorges University Key Laboratory for Silicate Materials Science and Engineering of Ministry of Education Wuhan University of Technology

To decrease the cement and SF content of RPC by using ultra-fine fly ash （UFFA） and steel slag powder （SS）, the effect of these mineral admixtures on compressive strength of RPC were investigated. The experimental results indicate that the utilization of UFFA and SS in RPC is feasible and has prominent mechanical performance. The microstructure analysis （SEM and TG-DTG-DSC） demonstrated that the excellent mechanical properties of RPC containing SS and UFFA were mainly attributed to the sequential hydration filling effect of the compound system.

关键词： ultra-fine fly ash steel slag powder reactive powder concrete sequential hydration microstructure strength

Effect of Fine steel slag powder on the Early Hydration Process of Portland Cement

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Journal of Wuhan University of Technology(Materials Science) 2006年第1期21卷 147-149页

作者：胡曙光 Key Laboratory for Silicate Materials Science and Engineering (Wuhan University of Technology) Ministry of EducationWuhan 430070China

Hydration heat evolution, non-evaporative water, setting time and SEM tests were peorormed to investigate the effect of fine steel slag powder on the hydration process of Portland cement and its mechanism. The results show that the effect of fine steel slag powder on the hydration process of Portland cement is closely related to its chemical composition, mineral phases, fineness, etc. Fine steel slag powder retards the hydration of portland cement at early age. The major reason for this phenomenon is the relative high content of MgO , MnO2, P2O5 in steel slag, and MgO solid solved in C3 S contained in steel slag.

关键词： steel slag powder portland cement early hydration process

Study on rapid stabilization of steel slag powder

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Baosteel Technical Research 2010年第S1期4卷 139-页

作者： TANG Weijun~(1)),LIAO Hongqiang~(1)),LI Shiqing~(1)),ZHAO Wenjuan~(1)) and ZHANG Zuoshun~(2)) 1) Environmental Protection Department of Shougang Group,Beijing 100041,China 2) University of Science and Technology Beijing,Beijing 100083,China

Dry ball milling and wet ball milling were used to treat converter slag with particle size < 10 mm and the converter slag powder was stabilized by H_2O only and H_2O coupled with CO_2.respectively.Results showed that ... 详细信息

Dry ball milling and wet ball milling were used to treat converter slag with particle size slag powder was stabilized by H_2O only and H_2O coupled with CO_2.respectively.Results showed that when CO_2 &H_2O was used,the free-calcium oxide(f-CaO) content in converter slag decreased significantly and after an-hour treatment the f-CaO content was reduced to 3%;however,when only treated by H_2O without CO_2, f-CaO needed 3-hour stabilization to decrease its content to 3%.When f-CaO in converter slag powder was treated by CO_2 &H_2O,its main reaction products were CaCO_3 and then Ca(OH)_2;however,when only H_2O was used, the f-CaO content decreased gently and the main products were Ca(OH)_2.

关键词： steel slag powder free-calcium oxide stabilization

The Application of the steel slag in the Radiation Shield Heavy Concrete

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The Application of the Steel Slag in the Radiation Shield He...