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Showing papers in "The World of Building Materials in 2012"


Journal Article
TL;DR: Through using silicate-calcium slag replace some limestone as cement raw material to make experiment,researching grinding, burning etc performance of the raw meal as discussed by the authors.Base on the result, it can guide the use of silicate calcium slag and limestone.
Abstract: Through using silicate-calcium slag replace some limestone as cement raw material to make experiment,researching grinding,burning etc performance of the raw meal.Base on the result,it can guide the use of silicate-calcium slag and limestone.

4 citations


Journal Article
TL;DR: In this article, the steel slag doping cement was produced by grinding clinker and steel slags separately first, and then mixing them together, and the optimal fineness and doping quantity of steel-slag in cement were obtained by complete chemical analysis and physical mechanical property test.
Abstract: The difference of steel slag's doping quantity and fineness in the steel slag doping cement which was produced from clinker and steel slag leaded to different effects on cement physical propertiesIn this paper,the steel slag doping cement was produced by grinding clinker and steel slag separately first,and then mixing them togetherThe optimal fineness and doping quantity of steel slag in cement were obtained by complete chemical analysis and physical mechanical property testThe purposes of making good use of metallurgical slag resources,improving cement property and reducing the cost of cement production could be achieved based on the research results

3 citations


Journal Article
TL;DR: In this paper, heavy metals were leached from steel slag asphalt mixture by TCLP(Toxicity Characteristic Leaching Procedure) and the results showed that the leaching concentrations of Cu,V,Zn,As,Mn exceeded the standard concentrations.
Abstract: This study verified that the steel slag can replace the stone as aggregate to be used in asphalt mixtureThe heavy metals were leached from steel slag asphalt mixture by TCLP(Toxicity Characteristic Leaching Procedure)The leaching behavior of heavy metal leaching from steel slag and asphalt mixture were investigatedThe results showed that the leaching concentrations of Cu,V,Zn,As,Mn exceeded the standard concentrationsThere was no visible concentration difference between Cu,V,Zn,As,Mn leaching from AC-16 asphalt mixture made with 3 kinds of asphalt,which indicated the asphalt variety has little effect on the heavy metal leaching behaviorThe Cu,Zn concentrations leaching from asphalt mixture were all below the standard concentrations,while the As,Mn leaching exceeded the standard concentrations

2 citations


Journal Article
TL;DR: By analyzing the characteristics of the sand making equipments, the effect of powder removal technology and so on, the equipment selection and powder removal procedure for small and medium-sized sand production plant is designed as mentioned in this paper.
Abstract: The process of manufactured sand production at transportation infrastructure construction is generally widely distributed in small plants.By analyzing the characteristics of the sand making equipments,the effect of powder removal technology and so on,the equipment selection and powder removal technology for small and medium-sized sand production plant are designed.

1 citations


Journal Article
TL;DR: In order to promote the popularization and application of the special-shaped concrete-filled steel column, on the basis of relevant literature, the authors introduces the research situation of column section constitution, the axial compression performance, bias performance, bending shear performance and repeated load performance, and briefly analyzes the problems existing in the research,defines the direction of future research.
Abstract: In order to promote the popularization and application of the special-shaped concrete-filled steel column,on the basis of relevant literature,this paper introduces the research situation of column section constitution,the axial compression performance,bias performance,bending shear performance and repeated load performance,and briefly analyzes the problems existing in the research,defines the direction of future research.Research shows that,special-shaped concrete-filled steel tube column continues the high bearing capacity,good seismic performance characteristics of concrete-filled steel tube,is an important development direction of the structural engineering.

1 citations


Journal Article
TL;DR: In this article, three methods of chemical modifications were investigated, including Na2SiO3 solution modification, hydrochloric acid modification and water-boiling modification, and the authors concluded that the HCL modification is the best way to modify the recycled concrete powder.
Abstract: Three methods of chemical modifications were investigated in this paper,including Na2SiO3 solution modification,hydrochloric acid modification and water-boiling modification.According to the performances of hydrophilic coefficient,German filler value,methylene blue adsorption value and apparent relative density of those three methods,we got the conclusion that the hydrochloric acid modification is the best way to modify the recycled concrete powder.

1 citations


Journal Article
TL;DR: In this paper, the effect of laboratory long-term aging simulation testing on response properties of bituminous mortar is investigated by means of the master curves of complex modulus and phase angle.
Abstract: This paper investigates the effect of laboratory long-term aging simulation testing on response properties of bituminous mortarThe long-term aging regime consists of a 1 000-hour aging by using a combination of ultraviolet aging,thermal aging as well as the effect of humidity and oxygenA complete set of test platform was developed for bituminous mortar on the basis of dynamic shear rheometerThe effect of laboratory long-term aging simulation testing is discussed by means of the master curves of complex modulus and phase angle

1 citations


Journal Article
TL;DR: In this article, a brief overview of the structure, property and application of silica sol is presented, and the shortcomings and limited applications of the conventional sol are also pointed out, especially the modificated methods and mechanism of the silica Sol at home and abroad were focused on.
Abstract: A brief overview would be presented on structure,property and application of silica sol.Meanwhile,the shortcomings and limited applications of the conventional silica sol were also pointed out.Especially the modificated methods and mechanism of silica sol at home and abroad were focused on.Finally,the applicated future of modified silica sol was prospected.

1 citations


Journal Article
TL;DR: In this paper, the fire resistance properties of a kind of inorganic composite substitute wood fire door was studied according to GB/T 7633-2008,GB/T 5464-2010 and GB/Ts 14402-2007.
Abstract: The fire resistance properties of a kind of inorganic composite substitute wood fire door was studied according to GB/T 7633—2008,GB/T 5464—2010 and GB/T 14402—2007.The results show that the fire-resistance grade of the fire door satisfy the request of Grade A.The advantages of this fire door are analysed from the two aspects of structure and marterial.

1 citations


Journal Article
TL;DR: In this paper, the performance of steel bars connected with a steel sleeve was studied experimentally under high temperature, including yield strength, yield strain, elastic modulus, and so on.
Abstract: Mechanics performance of steel bars connected with steel sleeve were studied experimentally under high temperature.The experiments indicated the mechanics performance of steel bars,including yield strength,yield strain,elastic modulus and so on.

1 citations


Journal Article
TL;DR: In this article, the authors described the various stages of development and the advantages and disadvantages of the development process, and investigated the problems of design and construction, the development tendency of spatial structure was summarized and analyzed.
Abstract: This paper described in detail the various stages of development and the advantages and disadvantages of the development process,and investigated the problems of design and construction,The development tendency of spatial structure was summarized and analyzed.