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    蘇州混凝土水泥制品研究院有限公司

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    發布時間:2020-01-06 00:00:00
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    第四期

    建筑垃圾掛漿膜化機制對水泥砂漿性能的影響
    建筑垃圾掛漿膜化機制對水泥砂漿性能的影響
    • 楊子勝,王奕仁,王愛勤
    2015年第4期
    摘要
    引用本文
    摘 要:將二水石膏、膠粉、纖維素醚等原料對建筑垃圾再生砂進行膜化處理制備水泥砂漿,通過正交試驗和方差分析研究了二水石膏、膠粉、纖維素醚對其性能的影響,得出了抗壓強度效果最好的膜化配比為4%石膏、2%膠粉和0.6%纖維素醚,抗折強度效果最好的膜化配比為4%石膏、1%膠粉和0.2%纖維素醚,三種因素對其吸水率影響不大。試驗結果表明,經膜化處理建筑垃圾制備的水泥砂漿的性能要優于未處理的建筑垃圾制備的水泥砂漿。 Abstract: The dihydrate gypsum, powder, cellulose ethers and other raw materials are used for construction waste reclaimed sand membrane treatment and preparation of cement mortar, and the effect of dihydrate gypsum, powder, cellulose ethers on performance of cement mortar is studied by the method of orthogonal level analysis and variance analysis. The results show that the membrane proportion of mortar with the best compressive strength is 4% gypsum, 2% powder and 0.6% cellulose ether, the membrane proportion of mortar with the best flexural strength is 4% gypsum, 1% powder and 0.2% cellulose ethers, three factors have little effect on its absorption. The test results show that the performance of cement mortar treated by membrane treatment is superior to that of cement mortar untreated.
    激發劑對鋼渣-礦粉膠凝材料力學性能的影響及機理分析
    激發劑對鋼渣-礦粉膠凝材料力學性能的影響及機理分析
    • 田秀淑,趙子伯,金婷艷
    2015年第4期
    摘要
    引用本文
    摘??要:研究了氫氧化鈣、石膏、硫酸鈉三種激發劑對鋼渣-礦粉膠凝材料力學性能的影響,并結合XRD圖譜分析了激發劑對鋼渣-礦粉膠凝材料水化產物的影響機理。試驗結果表明,三類激發劑中,硫酸鈉能更好的激發鋼渣-礦粉的活性,當硫酸鈉的摻量為1.5%時,3d強度為18.0MPa,7d強度達到22.5MPa,28d強度達到25.8MPa。XRD分析表明,摻入硫酸鈉后,鋼渣-礦粉膠凝材料的水化產物主要為C-S-H凝膠、棒柱狀AFt晶體及少量的Ca(OH)2晶體,激發劑摻量的不同,水化產物數量不同,合適摻量的激發劑有助于激發體系的水化活性,提高體系的力學性能。Abstract:Effectofthreekindsofactivator(calciumhydroxide,gypsumandsodiumsulfate)onthemechanicalpropertiesofsteelslag-slagpowderisstudied.HydrationproductsofthematerialsareinvestigatedbyXRD.Theresultsshowthatcomparedwiththecalciumhydroxideandgypsum,sodiumsulfatecanstimulatetheactivityofsteelslag-slagpowdermoreeffectively.WhenthecontentofNa2SO4is1.5%,3dcompressivestrengthis18.0MPa,7dcompressivestrengthis22.5MPaand28dcompressivestrengthachieves22.5MPa.XRDanalysisshowsthathydrationproductsaremainlycomposedofC-S-Hgel,AFtandCa(OH)2crystals.Theamountofhydrationproductsischangedalongwithdifferentcontentofactivators.Appropriatecontentofactivatorishelpfultothehydrationactivityofthesteelslag-slagpowdersystem,alsocanimprovethemechanicalproperties.
    C30鎂渣混凝土的碳化特性試驗研究
    C30鎂渣混凝土的碳化特性試驗研究
    • 李 崢,崔自治
    2015年第4期
    摘要
    引用本文
    摘 要:為了實現合理利用粉煤灰、鎂渣等工業廢渣,提高混凝土抗碳化性能,以鎂渣摻量、鎂渣消解時間和粉煤灰摻量為因素,設計正交試驗L9(34)方案及單因素試驗方案,試驗研究鎂渣混凝土的碳化規律。試驗表明,鎂渣具有增加堿性儲備和補償收縮變形的雙重效應,能顯著提高C30混凝土的抗碳化性能,碳化深度與鎂渣摻量呈冪指數關系,與碳化時間呈雙曲線關系。鎂渣和粉煤灰都是影響混凝土碳化性能的重要因素,鎂渣消解時間的影響很小,是次要因素。就碳化而言,可以取消鎂渣消解環節,簡化鎂渣混凝土的生產工藝。 Abstract: In order to realize the reasonable utilization of industrial residue such as fly ash, magnesium slag and so on and enhance the carbonation performance of concrete, taking magnesium slag content, magnesium slag digestion time and fly ash content as factors, the orthogonal test L9(34) and the single factor test scheme were designed to research the carbonization law of magnesium slag concrete. The result shows that: magnesium slag has double effects increasing alkaline reserve and compensating shrinkage deformation, and can significantly improve the carbonation performance of C30 concrete; the carbonation depth is the exponential relationship with magnesium slag content, the hyperbolic relationship with carbonization time. Magnesium slag and fly ash are important factors affecting carbonization performance of concrete. The magnesium slag digesting time which is a minor factor has little effect on carbonation. In terms of carbonization, magnesium slag digestion can be cancelled to simplify the production process of magnesium slag concrete.
    無縫施工技術在滄州民防館工程中的應用
    無縫施工技術在滄州民防館工程中的應用
    • 任偉記
    2015年第4期
    摘要
    引用本文
    摘 要:概述了混凝土無縫施工技術在滄州民防工程中的應用,該工程通過設置膨脹加強帶利用補償收縮混凝土等技術,達到了理想的效果。 Abstract: The application of concrete jointless construction technology in Cangzhou civil defense engineering is summarized. And the project achieves an ideal effect by setting expansion reinforcing band and using shrinkage-compensating technology.
    基于FMECA的鉆孔灌注樁施工風險研究
    基于FMECA的鉆孔灌注樁施工風險研究
    • 白 冰1,李 平2
    2015年第4期
    摘要
    引用本文
    摘 要:FMECA方法具有數據簡單、處理直接、應用潛力大等優點,故將其引入到施工風險管理中。本文選取鉆孔灌注樁為例分析建筑施工風險,采用FMECA中的風險優先數方法,將風險衡量因子擴展為“發生概率”、“危害程度”和“可檢測度”三個因子,對鉆孔灌注樁施工風險進行半定量分析,提出更客觀的防治措施,進而驗證了FMECA方法在施工風險分析中的有效性。 Abstract: The FMECA method has the advantages of simple data, direct processing and great application potential, so it will be introduced to the construction risk management. Here, construction risk is analyzed by taking a bored pile as an example, and using risk priority number method of FMECA, the risk measure factor is expanded to three factors (occurrence probability, damage degree and detectability). Meanwhile, semi-quantitative analysis of construction risk of bored piles is took, more objective measures are put forward, and then verify the effectiveness of FMECA method in the construction risk analysis.
    管樁模具的使用與高效修復工藝
    管樁模具的使用與高效修復工藝
    • 趙瑞軍
    2015年第4期
    摘要
    引用本文
    摘 要:分析了管樁模具的工作條件及損壞形式,指出了目前模具跑輪修復方法的不足,提出了利用自動堆焊設備修復管樁模具跑輪的工藝技術。研究表明,采用該工藝修復模具跑輪可大幅度提高修復效率,修復后模具的使用壽命甚至優于新模具。 Abstract:The working conditions and damage forms of the pile mould are analyzed, the shortages of the running wheel repair method for current moulds are point out, and the technology on using automatic welding equipment to repair mould running round of is put forward. The research shows that using the new technology to repair mold running wheels can greatly improve the efficiency of repair, even after repairing service life of mould is superior to that of the new mould.
    JC/T 2236-2014《預應力高強混凝土樁用硅砂粉應用技術規程》標準解讀
    JC/T 2236-2014《預應力高強混凝土樁用硅砂粉應用技術規程》標準解讀
    • 蔣元海
    2015年第4期
    摘要
    引用本文
    摘 要:簡述了建材行業標準JC/T 2236-2014《預應力高強混凝土樁用硅砂粉應用技術規程》的編制背景、編制目的和意義,詳細說明了標準條文的具體內容,提出了實施過程中應注意的問題。 Abstract:The compilation background, purpose and significance of building material industry standard JC/T 2236-2014 Technical specification for application of ground silica sand used for prestressed high-strength concrete piles are introduced, and the main items of the standard are explained. Meanwhile, some problems that should be paid attention to during the process of implementing the standard of JC/T 2236-2014 are put forward.
    建筑干混砂漿生產線設計的規范化
    建筑干混砂漿生產線設計的規范化
    • 秦翻萍
    2015年第4期
    摘要
    引用本文
    摘 要:針對干混砂漿生產工藝特點和行業發展現狀,分析討論了生產線總平面規劃設計、生產工藝設計、建筑結構設計、環保及職業衛生設計等主要環節。提出了干混砂漿生產線設計的規范化要求和應按照我國的法律、法規、規范,實行高水平的設計、建設思路,避免大量作坊式生產線的出現是本行業健康發展的方向。 Abstract:According to the characteristics of the dry-mixed mortar production technology and industry development present situation, the main links of the production line are discussed, such as the general layout planning and design, production process design, structure design, environmental protection and occupational health and so on. It’s point out that the standardization of design requirements of the dry-mortar production line, implementation of high level design and construction in accordance with the laws, regulations and specifications of our country, and avoiding the emergence of large workshop production lines are healthy development directions of the industry.
    濕法球磨改性固硫灰輕質隔墻條板的制備
    濕法球磨改性固硫灰輕質隔墻條板的制備
    • 孫 婷1,鄧躍全1,武 林1,曲瑞雪2
    2015年第4期
    摘要
    引用本文
    摘 要:研究了濕法球磨固硫灰性能的變化,濕法球磨10min可使固硫灰平均粒徑從5000nm下降到1800nm,硫酸鈣完全轉化為二水硫酸鈣,能有效消除因體積膨脹引起后期安定性不良問題;探討了固硫灰和水泥摻量對隔墻條板用水量、容重和強度的影響規律。結果表明,濕磨使固硫灰中硫酸鈣溶解后重結晶成棒狀、錐狀晶須,利于與水泥水化產物緊密結合,形成輕質、高強材料,有較好應用前景。 Abstract: The performance changes of wet milling circulating fluidized bed combustion (CFBC) fly ash are studied. When wet milling time is 10min, the particle mean size of the CFBC fly ash decreases from 5000nm to 1800nm, calcium sulphate could be totally changed into dehydrate calcium sulphate, which effectively gets rid of the problem of later poor stability caused by dilatability. The influence laws of contents of CFBC fly ash and cement on water consumption, bulk density and strength of light weight panels for partition wall are discussed. The results show that through wet milling, calcium sulphate in the CFBC fly ash dissolves, and then crystallizes into rod or cone whisker, which was closely integrated with cement hydrates, thus those become a light weight and high strength material. The technology has a good prospect.
    復合墻體熱濕耦合傳遞模擬軟件的開發與應用
    復合墻體熱濕耦合傳遞模擬軟件的開發與應用
    • 宋計勇1,劉福勝1,卞漢兵2,王宏斌1,張 琳1
    2015年第4期
    摘要
    引用本文
    摘 要:為快速得到復合墻體溫度場及濕度場,基于熱濕耦合傳遞理論,以Fortran語言編制了復合墻體的熱濕耦合傳遞計算程序,并在Windows操作環境下混編VB程序和Fortran程序,開發出復合墻體熱濕性能模擬軟件(HMCT1.0)。該軟件可對不同室內外環境參數下復合墻體溫度場、濕度場進行快速計算及分析,為方便快捷的選擇合適墻體組材奠定了基礎,并結合實例說明其應用。 Abstract:To get the temperature field and humidity field of composite wall quickly, based on the theory of heat and moisture coupling transfer, the heat and moisture coupling transfer program of composite wall is programmed using Fortran language, the VB program and Fortran program are mixed and programmed in the windows operating system, and the simulation software of composite wall heat and moisture performance(HMCT1.0)is developed. The heat and moisture performance of composite wall in different indoor and outdoor environments can be analyzed using the software, which provides a convenient method for engineers to select the best set of wall material. In addition, the application of the software with example is illustrate.
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