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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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    第三期

    堿激發昆鋼礦渣水泥高溫抗壓強度實驗研究
    堿激發昆鋼礦渣水泥高溫抗壓強度實驗研究
    • 萬夫雄, 魯繼宣,田尚理,游 用,郭榮鑫
    2018年第3期
    摘要
    引用本文
    摘 要:為更廣泛了解堿礦渣水泥耐高溫性能,選用水玻璃和氫氧化鈉分別激發昆鋼礦渣,探究兩種激發劑作用下堿礦渣水泥高溫劣化程度,以及在不同堿含量、不同水膠比和不同水玻璃模數時強度隨溫度的變化規律。實驗結果表明,兩種堿激發昆鋼礦渣水泥隨著溫度升高強度均較大幅度降低,耐高溫性能不佳。在兩種激發劑分別作用下,不同堿含量時常溫強度越高的堿礦渣水泥高溫強度降幅均越大,不同水膠比時堿礦渣水泥高溫強度降低幅度均與溫度區段相關。在水玻璃為激發劑作用下,水玻璃模數越大,堿礦渣水泥高溫強度降幅越小。在相同堿含量和水膠比下,水玻璃激發昆鋼礦渣水泥耐高溫性能明顯好于氫氧化鈉激發。 Abstract: In order to understande the comprehensively high temperature-resistance performance of Alkali-activated Slag (AAS), Water Glass (WG) and Sodium Hydroxide (SH) are used to activate slag from Kunming Iron and Steel Co.,Ltd (KIS), high-temperature deterioration degree of AAS by the two activators, and the law of compressive strength varying with temperature for different alkali content, water-binder ratio and WG modules are studied. Experimental result shows that the strength of AAS from KIS has a great drop with high temperature increasing, and has not good temperature-resistance performance. For AAS with different alkali content, the higher the strength at room temperature, the more sharperly the strength declines at high temperature. For AAS with different water-binder ratio, the degree of the strength declining is related to temperature. The bigger the WG moduleis, the better temperature-resistance performance of AAS is. At the case of the same alkali content and water-binder ratio, temperature-resistance performance of AAS by WG is better than that by SH.
    萬夫雄,魯繼宣,田尚理,等.堿激發昆鋼礦渣水泥高溫抗壓強度實驗研究[J].混凝土與水泥制品,2018(3):101-104. WAN F X,LU J X,TIAN S L,et al.Experimental Study on Compressive Strength of Alkali-activate Slag (AAS) Cement from Kunming Iron and Steel Co., Ltd.after High Temperature[J].China Concrete and Cement Products,2018(3):101-104.
    川煤某集團煤泥特征及其煅燒產物火山灰活性研究
    川煤某集團煤泥特征及其煅燒產物火山灰活性研究
    • 劉冬雪1,向香源1,胡俊陽1,馮啟明1,2,黃 陽1,2,徐中慧1,2
    2018年第3期
    摘要
    引用本文
    摘??要:對川煤某集團洗煤尾泥的物質成分特點及其在不同條件下煅燒磨細后產物的火山灰活性進行了研究,對摻不同煅燒條件下的煤泥所制水泥凈漿用TG-DTG法分析了煅燒條件與其火山灰活性的關系。結果表明,該洗煤尾泥主要由高嶺石和伊利石組成,并含有少量的石英和方解石,其燒失量為31.3%,發熱量為1875kcal/kg;當煅燒溫度為850℃,保溫1.5h,磨細至D90=20μm左右時,其28d活性指數達97%左右,具有良好的火山灰活性,可用于水泥活性混合材和混凝土活性摻合料;對摻不同活性指數的煅燒煤泥所制水泥凈漿試樣進行TG-DTG分析表明,水泥凈漿在不同溫度區域的失重情況與煅燒煤泥活性指數變化規律一致。Abstract:Thecharacteristicsofthematerialcompositionandthepozzolanicactivitywhichaftercalcinationfinegrindingunderthedifferentconditionsofthecoal-washingtailingsintheSichuan-coalGroupwerestudiedsystematically,andtherelationshipbetweencalcinationconditionandpozzolanicactivitywasanalyzedbyTG-DTGmethodofcementpasteunderthedifferentcalcinationconditions.Theresultsshowthatthecoal-washingtailingsmainlyconsistofkaoliniteandillite,andcontainasmallamountofquartzandcalcite,thecalorificlossis31.3%,theheatis1875kcal/kg;whenthecalcinationtemperatureis850℃,thethermalinsulationis1.5h,theactivityindexof28disabout97%whenmilledtoD90=20μm,withbetterpozzolanicactivity,itcanbeusedincementactivemixtureandconcreteactiveadmixture.TheTG-DTGanalysisofcementpastesamplesmadefromcalcinedslimewithdifferentactivityindexshowsthattheweightlossofslime-cementslurryindifferenttemperatureregionsisconsistentwiththatofcalcinedslimeactivityindex.
    劉冬雪,向香源,胡俊陽,等.川煤某集團煤泥特征及其煅燒產物火山灰活性研究[J].混凝土與水泥制品,2018(3):96-100. LIU D X,XIANG X Y,HU J Y,et al.Research of Coal Slime Characteristic of Sichuan-coal Group and Pozzolanic Activity of Its Calcined Products[J].China Concrete and Cement Products,2018(3):96-100.
    鉆孔灌注樁孔位及鋼筋骨架新型定位技術研究
    鉆孔灌注樁孔位及鋼筋骨架新型定位技術研究
    • 谷文漢1,溫小非2,趙如泉1,汪爾乾1,章思奇1,余海龍1,張 松1,呂 浩1
    2018年第3期
    摘要
    引用本文
    摘 要:鉆孔灌注樁是眾多橋梁及其他工程施工的基礎,如果鉆孔灌注樁的孔位及鋼筋骨架中心偏位較大,則會導致橋梁上部結構對鉆孔樁和墩柱產生較大的偏心壓力,從而降低鉆孔灌注樁的承載能力。本文通過對鉆孔灌注樁孔位及鋼筋骨架偏位原因進行深入研究,提出了一種新型快捷易操作并能準確確定孔位和鋼筋骨架中心的定位技術,可為鉆孔灌注樁孔位及鋼筋骨架定位施工提供參考。 Abstract: Bored piles are the foundation of numerous bridges and other construction projects. If the pile and reinforcement cage position deviation of bored pile is larger, the bridge superstructure will cause greater eccentric pressure on the bored pile and column, which can reduce the bearing capacity of the bored pile. Through in-depth study on the reasons for the pile and reinforcement cage position deviation of bored piles, a new type of positioning technology determining the coincidence of holes and reinforcement cage center is proposed, whcih is easy to operate and precise. It has a good effect on a bridge project in Xuzhou and can provide a reference for the hole and reinforcement cage positioning construction of bored piles
    谷文漢,溫小非,趙如泉,等.鉆孔灌注樁孔位及鋼筋骨架新型定位技術研究[J].混凝土與水泥制品,2018(3):93-95. GU W H,WEN X F,ZHAO R Q,et al.Study on Hole Position of Bored Pile and New Type Positioning Technology of Reinforcement Cage[J].China Concrete and Cement Products,2018(3):93-95.
    PCC樁加固航道邊坡方案研究
    PCC樁加固航道邊坡方案研究
    • 高德清
    2018年第3期
    摘要
    引用本文
    摘?要:結合擬建的某航道斜坡式護岸工程,對PCC樁加固方案的設計、數值計算驗證、計算結果對比等方面進行了分析,結果表明,采用該樁型對航道護岸工程進行軟基加固處理,在有效節省造價的同時,岸坡具有良好的穩定性,且加固區的位移量較小,能較好地滿足工程的要求。Abstract:Combinedwithengineeringexampleofachannelslopereinforcement,thedesign,numericalcalculationandcalculationresultscomparisonofPCCpileschemeareanalyzed.TheresultsshowthatthechannelslopeisstablebyusingPCCpilescheme.Meanwhile,theschemeiseconomicalandthedisplacementofthereinforcedareaissmall,andcanmeettherequirementoftheengineeringapplication.
    高德清.PCC樁加固航道邊坡方案研究[J].混凝土與水泥制品,2018(3):89-92. GAO D Q.Scheme Research on Channel Slope Reinforced with PCC Pile[J].China Concrete and Cement Products,2018(3):89-92.
    混凝土外加劑減水率檢測誤差分析
    混凝土外加劑減水率檢測誤差分析
    • 高 峰
    2018年第3期
    摘要
    引用本文
    摘 要:在參加省級混凝土外加劑檢測能力驗證過程中發現:同一混凝土外加劑樣品,不同單位的檢測結果偏差較大。本文通過對檢測全過程的分析,找出了影響檢測結果的多個因素,提出了需要關注的關鍵過程和操作,可減少檢測誤差,提高混凝土外加劑減水率檢測結果的準確性。 Abstract: After taking part in the verification process of testing capability of concrete admixtures at provincial level, it is found that the detection results of the same concrete admixtures by different enterprise has large deviation. By analyzing the whole detection process, many factors that affect the results are found, the key processes and operations which are needed to be concerned are put forward. Detection error is reduced and the accuracy of the test results of concrete admixture water reducing rate is improved.
    高峰.混凝土外加劑減水率檢測誤差分析[J].混凝土與水泥制品,2018(3):86-88. GAO F.Analysis on Testing Error of Water Reducing Rate of Concrete Admixture[J].China Concrete and Cement Products,2018(3):86-88.
    混凝土抗滲性能現場檢測技術試驗研究
    混凝土抗滲性能現場檢測技術試驗研究
    • 蔣 銳,薛晨曦,楊 戈,李玉春
    2018年第3期
    摘要
    引用本文
    摘 要:混凝土滲透性是決定混凝土耐久性的重要因素,是我國工程建設質量見證取樣強制控制的檢測項目,但一直缺乏有效的現場檢測方法,只能通過送樣試塊在試驗室試驗控制,與實際工程質量有較大偏差。本文利用Torrent透氣法(一種新型混凝土滲透性檢測技術),與傳統的水壓滲透試驗方法進行對比試驗研究,建立了Torrent透氣法最大壓力差ΔPmax與滲水高度法滲透深度Lw的相互關系,論證了Torrent透氣法應用于混凝土抗滲性現場無損檢測的可行性。 Abstract:The concrete permeability is an important factor to the durability of concrete and is the compulsory control testing project of the witness sampling in China, but it lacks effective on-site detection method, which must be tested in laboratory, thus there is a large deviation with the actual project. Torrent ventilation method is used to be compared with the experimental research laboratory pressure permeation test method, the relationship between maximum differential pressure ΔPmax of Torrent breathable and penetration depth Lw of water penetration height method are established, which has demonstrated the feasibility of Torrent ventilation method applied on messuring the permeability of concrete.
    蔣銳,薛晨曦,楊戈,等.混凝土抗滲性能現場檢測技術試驗研究[J].混凝土與水泥制品,2018(3):82-85. JIANG R,XUE C X,YANG G,et al.Experimental Study on On-site Testing Technology of Concrete Permeability[J].China Concrete and Cement Products,2018(3):82-85.
    GB/T 19685—2017《預應力鋼筒混凝土管》 標準修訂主要條款說明
    GB/T 19685—2017《預應力鋼筒混凝土管》 標準修訂主要條款說明
    • 謝一飛,鄧稚川,余洪方
    2018年第3期
    摘要
    引用本文
    摘?要:結合GB/T19685—2017《預應力鋼筒混凝土管》標準修訂情況,從標準范圍、產品分類及尺寸、原輔材料、制管技術要求、成品質量、檢驗規則和附錄出發,介紹了標準的修訂條款,以期為我國PCCP行業的發展提供更為規范的技術依據和指導。Abstract:CombinedwiththerevisionoftheGB/T19685—2017PrestressedConcreteCylinderPipe,fromtheaspectsofstandardrange,productclassificationandsize,rawmaterials,processingtechnology,qualityrequirements,inspectionrulesandappendix,theclauserevisiondescriptionisintroducedtopromotethedevelopmentofChinaPCCPindustryandprovidetechnicalbasisandguidelines.
    謝一飛,鄧稚川,余洪方.GB/T 19685—2017《預應力鋼筒混凝土管》標準修訂主要條款說明[J].混凝土與水泥制品,2018(3):79-81. XIE Y F,DENG Z C,YU H F.Main Revision Clause Description of GB/T 19685-2017 Prestressed Concrete Cylinder Pipe[J].China Concrete and Cement Products,2018(3):79-81.
    裝配式構件生產線和生產工藝研究
    裝配式構件生產線和生產工藝研究
    • 劉志明,雷春梅
    2018年第3期
    摘要
    引用本文
    摘 要:總結了墻板等預制構件的拆分技術、制造技術、施工工藝流程及工藝操作要點,并結合工程實例,介紹了鋼筋骨架加工、模板設計、混凝土澆筑、關鍵施工節點優化等關鍵技術。 Abstract: The separation technology, manufacturing technology, construction process and technical operation points of the wall, panels and other prefabricated components were introduced. Based on the actual case, the steel skeleton processing, template design, concrete placement and key construction node optimization were also introduced。
    劉志明,雷春梅.裝配式構件生產線和生產工藝研究[J].混凝土與水泥制品,2018(3):76-78. LIU Z M,LEI C M.Research on Production Line and Production Process of Assembly Prefabricated Components[J].China Concrete and Cement Products,2018(3):76-78.
    沖擊荷載下型鋼混凝土梁的動態響應及破壞模式仿真分析
    沖擊荷載下型鋼混凝土梁的動態響應及破壞模式仿真分析
    • 鞏玉發1,段勁松1,2,段圣允3
    2018年第3期
    摘要
    引用本文
    摘 要:為研究沖擊荷載下型鋼混凝土梁的動態響應及破壞模式,使用有限元軟件建立型鋼混凝土梁沖擊仿真模型,并用相關試驗結果驗證模型的有效性。研究了剛體沖擊速度、混凝土強度等級、支座約束條件、箍筋間距等參數對型鋼混凝土梁沖擊響應的影響,對不同沖擊速度下型鋼混凝土梁的破壞模式進行了分析。結果分析表明:沖擊速度和約束條件對型鋼混凝土梁的沖擊變形影響顯著;箍筋間距、混凝土強度對抗沖擊變形影響較大;隨著剛體沖擊速度的增加,梁的整體破壞模式發生改變。 Abstract:In order to study the dynamic response and damage-failure of steel reinforced concrete beam under impact load, a finite element model of SRC beam which is verified with related test results is established. The effects of impact velocity, concrete strength, restraint condition, stirrup spacing on the impact deformation are taken into account, and the failure modes of the SRC beam under impact load are analyzed. The results show that the impact velocity and restraint condition are significant factors on the impact deformation. Stirrup spacing and stirrup spacing have great influence on the capacity of anti-impact deformation. With the impact velocity increasing, the damage forms of entire SRC beam are changed from one to another.
    鞏玉發,段勁松,段圣允.沖擊荷載下型鋼混凝土梁的動態響應及破壞模式仿真分析[J].混凝土與水泥制品,2018(3):71-75. GONG Y F,DUAN J S,DUAN S Y.Dynamic Respond and Finite Element Analysis of Failure Mode of Steel Reinforced Concrete Beams under Impact Loads[J].China Concrete and Cement Products,2018(3):71-75.
    憎水劑對摻稻殼灰蒸壓加氣混凝土性能的影響
    憎水劑對摻稻殼灰蒸壓加氣混凝土性能的影響
    • 徐方磊,蔣曉曙,黃小紅,王建新,操林海
    2018年第3期
    摘要
    引用本文
    摘??要:摻稻殼灰蒸壓加氣混凝土過高的吸水率影響了其工作性能,為改善蒸壓加氣混凝土的吸水特性,研究了三種不同類型憎水劑對蒸壓加氣混凝土吸水性能的影響。對比分析了摻甲基硅醇鈉、辛基三乙氧基硅烷和聚硅氧烷粉末憎水劑的蒸壓加氣混凝土吸水率、抗壓強度和導熱系數。結果表明:三種不同類型的憎水劑均能顯著降低AAC的吸水率;對比三種憎水劑對蒸壓加氣混凝土性能的影響,發現聚硅氧烷粉末憎水劑改性效果最佳,其適宜摻量為0.3%~0.7%。Abstract:Thehighwaterabsorptionofautoclavedaeratedconcretehasaffecteditsworkingperformance.Inordertoimprovethewaterabsorptioncharacteristicsofautoclavedaeratedconcrete,theeffectsofthreedifferenttypesofhydrophobicagentsonthewaterabsorptionofautoclavedaeratedconcretewerestudied.Thewaterabsorption,compressivestrengthandthermalconductivityofautoclavedaeratedconcretewithsodiummethacrylate,octyltriethoxysilaneandpolysiloxanepowderwerecomparedandanalyzed.TheresultsshowthatthreedifferenttypesofhydrophobicagentscouldsignificantlyreducethewaterabsorptionofAAC.Theeffectofthreekindsofhydrophobicagentsontheperformanceofautoclavedaeratedconcreteisfoundthatthemodifiedeffectofpolysiloxanepowderisthebestanditsappropriatecontentis0.3%~0.7%.
    徐方磊,蔣曉曙,黃小紅,等.憎水劑對摻稻殼灰蒸壓加氣混凝土性能的影響[J].混凝土與水泥制品,2018(3):68-70. XU F L,JIANG X S,HUANG X H,et al.Influence on Hydrophobic Agent of the Properties of Autoclaved Aerated Concrete with Rice Husk Ash[J].China Concrete and Cement Products,2018(3):68-70.
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