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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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    第九期

    資源環境綜合效益下綠色建筑技術評價方法研究——評《基于資源與環境綜合效益的綠色建筑技術評價》
    資源環境綜合效益下綠色建筑技術評價方法研究——評《基于資源與環境綜合效益的綠色建筑技術評價》
    • 李麗萍
    2020年第9期
    摘要
    引用本文
    目前,建筑行業消耗了大量的自然資源,破壞了生態環境。在建筑活動中如何實現資源與環境綜合效益的最大化是個難題。李紀偉等編著的《基于資源與環境綜合效益的綠色建筑技術評價》一書分析了建筑活動過程中材料生產、建設施工、運營維護、廢棄拆除4個階段對于環境的影響和資源的消耗,根據系統動力學分析方法預測了12種資源、環境因素的影響,根據各種因素,提出了基于資源環境綜合效益的綠色建筑技術評價方法,并編制出相應的評價工具以驗證評價方法的合理性。筆者通過對該書的學習,總結了以下幾個方面的內容以供參考。
    李麗萍.資源環境綜合效益下綠色建筑技術評價方法研究—評《基于資源與環境綜合效益的綠色建筑技術評價》[J].混凝土與水泥制品,2020(9):97.
    裝配式結構節點應力分析與抗震性能研究 ——評《裝配式結構節點抗震性能》
    裝配式結構節點應力分析與抗震性能研究 ——評《裝配式結構節點抗震性能》
    • 陳小兵
    2020年第9期
    摘要
    引用本文
    裝配式混凝土建筑結構具有施工速度快、施工工藝簡單、環境友好、節省資源的特點,是我國建筑工業化發展的主要方向。影響裝配式混凝土結構穩定性的關鍵環節是梁柱連接處,其直接決定著結構框架的內力分配、彎矩傳遞及整體性能。目前,我國對裝配式結構節點力學性能規律的認識還不足,導致節點實際應用受到限制。為了加強其認識,張延年等人編著了《裝配式結構節點抗震性能》一書,該書以物理試驗和理論分析為研究方法,從強度、剛度、耗能、抗震、應力、應變等方面,全面系統地對階梯鋼板式節點、鉤掛式節點、加強環節點的抗震性能和機理進行了分析,揭示了3類節點抗震承載力、強度退化、剛度退化、耗能行為、力學效應的變化規律。筆者基于該書的學習,總結重點章節如下。
    陳小兵.裝配式結構節點應力分析與抗震性能研究—評《裝配式結構節點抗震性能》[J].混凝土與水泥制品,2020(9):96.
    聚丙二醇摻量對堿礦渣水泥砂漿性能和水化過程的影響
    聚丙二醇摻量對堿礦渣水泥砂漿性能和水化過程的影響
    • 張蘭芳1,2,付彬鴻2,3,宋松松2,3,梁秋爽4
    2020年第9期
    摘要
    引用本文
    摘 ? 要:研究了不同摻量聚丙二醇對堿激發礦渣(AAS)水泥砂漿流動度、力學性能和干縮的影響,并通過電化學交流阻抗法(EIS)探討了其對砂漿水化過程的影響。結果表明,聚丙二醇的摻入能夠顯著提高AAS水泥砂漿的流動性,且摻量越大,流動性提高越明顯,但砂漿密度有輕微降低。聚丙二醇的摻入降低了AAS水泥砂漿的抗折、抗壓強度,但是隨著齡期的增長,抗折、抗壓強度均有所提高。摻入聚丙二醇能有效降低AAS砂漿的干縮。當聚丙二醇摻量為1%~3%時,各齡期的孔溶液電阻值(R1)較基準組有所減小,聚丙二醇抑制了AAS砂漿的水化反應。當摻量為5%~9%時,各齡期的R1大于基準組,AAS砂漿水化反應加快,且R1隨著聚丙二醇摻量的增加而增大。 Abstract: The effect of different content of polypropylene glycol on the fluidity, mechanical properties and shrinkage of alkali-activated slag(AAS) cement mortar was studied, and its influence on hydration process of AAS mortar was discussed by electrochemical impedance spectroscopy(EIS). The results show that the polypropylene glycol can improve the fluidity of AAS cement mortar, and the greater the content of polypropylene glycol, the more obvious the fluidity increase, but the density of the mortar slightly decreases. The flexural and compressive strength of AAS cement mortar decrease with the addition of polypropylene glycol, but with the increase of age, the flexural and compressive strength increase. Polypropylene glycol can effectively reduce the shrinkage of AAS mortar. The pore solution resistance(R1) of AAS mortar is lower than that of the control group when the polypropylene glycol content is 1%~3%, polypropylene glycol inhibits the hydration reaction. When the content is 5%~9%, R1 is greater than that of the control group, the hydration reaction of AAS mortar is accelerated, and R1 increases with the increase of the polypropylene glycol content.
    張蘭芳,付彬鴻,宋松松,等.聚丙二醇摻量對堿礦渣水泥砂漿性能和水化過程的影響[J].混凝土與水泥制品,2020(9):92-95. ZHANG L F,FU B H,SONG S S,Effect of Polypropylene Glycol Content on Performance and Hydration Process of Alkali Activated Slag Cement Mortar[J].CHINA CONCRETE AND CEMENT PRODUCTS,2020(9):92-95.
    玻璃粉和鋼渣對自密實混凝土力學性能的影響
    玻璃粉和鋼渣對自密實混凝土力學性能的影響
    • 孟繼軍
    2020年第9期
    摘要
    引用本文
    摘 ? 要:為研究玻璃粉和鋼渣協同使用對自密實混凝土力學性能的影響,分別以20%、30%和40%的玻璃粉替代水泥,40%、60%和80%鋼渣替代細骨料,制備了9種不同配合比的自密實混凝土試件,通過坍落度試驗、J型環試驗、V型漏斗試驗和L型儀試驗測試了新拌自密實混凝土的工作性,并分析了硬化后自密實混凝土的抗壓強度、劈裂抗拉強度、抗折強度和彈性模量。結果表明,當玻璃粉和鋼渣協同使用時,可以顯著提高鋼渣替代細骨料的比例,替代比例高達80%;自密實混凝土的和易性隨著玻璃粉含量的增加而增大,隨鋼渣摻量的增加而減??;抗壓強度、劈裂抗拉強度、抗折強度和彈性模量隨鋼渣摻量的增加而增加,隨玻璃粉摻量的增加逐漸減小。自密實混凝土中鋼渣和水泥的最佳摻量分別為80%和20%。 Abstract: In order to study the effect of glass powder and steel slag on the mechanical properties of self-compacting concrete, 9 kinds of self-compacting concrete specimens with different mix proportions were prepared by using 20%, 30% and 40% glass powder instead of cement, 40%, 60% and 80% steel slag instead of fine aggregate, respectively. The workability of fresh self-compacting concrete was tested by slump flow test, J-Ring test, V-funnel test and L-box test, and the compressive strength, splitting tensile strength, flexural strength and elastic modulus of hardened self-compacting concrete were analyzed. The results show that when glass powder and steel slag are used together, the substitution ratio of steel slag to replace fine aggregate can significantly increase, and the substitution ratio is as high as 80%. The workability of self-compacting concrete increases with the increase of glass powder content, and decreases with the increase of steel slag content. The compressive strength, splitting tensile strength, flexural strength and elastic modulus increase with the increase of steel slag content, and decrease with the increase of glass powder content. The optimum content of steel slag and cement in self-compacting concrete is 80% and 20%, respectively.
    孟繼軍.玻璃粉和鋼渣對自密實混凝土力學性能的影響[J].混凝土與水泥制品,2020(9):88-91. MENG J J.Effect of Glass Powder and Steel Slag on the Mechanical Properties of Self-compacting Concrete[J].CHINA CONCRETE AND CEMENT PRODUCTS,2020(9):88-91.
    施工因素對地鐵車站側墻混凝土早期裂縫影響監測分析
    施工因素對地鐵車站側墻混凝土早期裂縫影響監測分析
    • 徐 文1,2,李忠超3,張建亮2,張 堅2,汪 洋2
    2020年第9期
    摘要
    引用本文
    摘 ? 要:監測了不同施工季節、模板材質和拆模時間等工況下某地鐵車站主體結構側墻混凝土溫度、應變歷程,分析了其對混凝土早期收縮開裂的影響。結果表明,施工時氣溫越高,側墻混凝土溫升、溫降、溫降速率以及溫降收縮越大,開裂風險也顯著上升。使用鋼模板有利于早期散熱,可顯著降低側墻混凝土的溫升與溫度峰值,降低其開裂風險。延長木模板拆模時間可減小側墻混凝土的溫降速率,利用混凝土的徐變效應抑制開裂風險。上述施工因素變化過程中,側墻混凝土的里表溫差及其引起的開裂風險總體較小。 Abstract: The temperature and strain history of sidewall concrete of a metro station main structure were monitored under conditions including different construction seasons, form materials and its removal time, based on which the effects of these conditions on the early age cracking of sidewall concrete were analyzed furtherly. The results show that the temperature rise, temperature drop, temperature drop rate and shrinkage deformation at temperature drop stage of sidewall concrete increase with the increase of air temperature during construction, and the cracking risk of sidewall concrete also rises obviously. The application of steel form helps hydration heat dissipation and decreases the temperature rise and peak of sidewall concrete significantly, as well as the cracking risk. Removing wood form later decreases the temperature drop rate and cracking risk of sidewall concrete because of creep effect. The temperature difference between center and surface of sidewall concrete and the cracking risk caused by it are always small under the above variable construction conditions.?
    徐文,李忠超,張建亮,等.施工因素對地鐵車站側墻混凝土早期裂縫影響監測分析[J].混凝土與水泥制品,2020(9):84-87. XU W,LI Z C,ZHANG J J,et al.Monitoring Analysis of Influence of Construction Factors on Early Age Cracking of Sidewall Concrete in Metro Station Engineering[J].CHINA CONCRETE AND CEMENT PRODUCTS,2020(9):84-87.
    表面硬度法檢測套筒灌漿料抗壓強度試驗研究
    表面硬度法檢測套筒灌漿料抗壓強度試驗研究
    • 吳玉龍1,丁晨晨1,2,顧 盛1,盧康昕3,孫才勇1
    2020年第9期
    摘要
    引用本文
    摘 ? 要:提出了以DL型里氏硬度計作為檢測設備的鋼筋套筒連接灌漿料抗壓強度無損檢測方法,測試了灌漿料試件的表面硬度,并建立了測強曲線。研究結果表明,灌漿料試件的表面硬度基本服從正態分布,前后兩次表面硬度測試結果的重復性較好。試件的表面硬度與抗壓強度具有強正相關性,推薦采用指數回歸方法建立測強曲線,相關系數可達0.945。 Abstract: A non-destructive testing method for the compressive strength of grouting materials for steel sleeves using DL type Leeb hardness tester as a testing device was put forward, and the surface hardness of grouting materials was tested and the strength curve was established. The results show that the surface hardness of grouting materials is normally distributed, and the surface hardness test has good repeatability. The surface hardness of the specimen is strongly correlated with the compressive strength, and it is recommended to use the exponential function regression to establish strength curve, and the correlation coefficient can reach 0.945.
    吳玉龍,丁晨晨,顧盛,等.表面硬度法檢測套筒灌漿料抗壓強度試驗研究[J].混凝土與水泥制品,2020(9):79-83. WU Y L,DING C C,GU S,et al.Experimental Study on Compressive Strength of Grouting Materials for Sleeves by Surface Hardness Method[J].CHINA CONCRETE AND CEMENT PRODUCTS,2020(9):79-83.
    T/CECS 10082—2020《混凝土用鈣鎂復合 膨脹劑》標準解讀
    T/CECS 10082—2020《混凝土用鈣鎂復合 膨脹劑》標準解讀
    • 陸安群1,2,徐 文3,王 瑞1,2,王育江1,2,田 倩1,2,劉加平1,3
    2020年第9期
    摘要
    引用本文
    摘 ? 要:T/CECS 10082—2020《混凝土用鈣鎂復合膨脹劑》已于2020年6月1日開始實施,為便于準確貫徹實施該標準的具體要求和規定,介紹了T/CECS 10082-2020標準的編制背景、編制目的和意義,并對其主要條款作了解讀。 Abstract: The standard T/CECS 10082—2020 Calcium and Magnesium Oxides Based Expansive Agent for Concrete has been implemented on June 1, 2020. As a new standard, in order to carry out and implement the specifications of the standard reasonably and scientifically for the users,the establishing background, purpose and meanings of the standard are introduced, and the main issues of the standard are interpreted.
    陸安群,徐文,王瑞,等.T/CECS 10082—2020《混凝土用鈣鎂復合膨脹劑》標準解讀[J].混凝土與水泥制品,2020(9):74-78. LU A Q,XU W,WANG R,et al.Interpretation of T/CECS 10082—2020 Calcium and Magnesium Oxides Based Expansive Agent for Concrete[J].CHINA CONCRETE AND CEMENT PRODUCTS,2020(9):74-78.
    基于不同連接技術的裝配式混凝土剪力墻 抗震性能研究進展
    基于不同連接技術的裝配式混凝土剪力墻 抗震性能研究進展
    • 姚丹丹1,劉文鋒2
    2020年第9期
    摘要
    引用本文
    摘 ? 要:研究了裝配式剪力墻的連接技術,探討了水平及豎向接縫結合部位連接形式和鋼筋連接形式,分析了不同連接技術的研究現狀和抗震性能,并對裝配式剪力墻連接技術的發展進行了展望。 Abstract: The connection technology of prefabricated shear wall is studied, and the horizontal and vertical seam binding site connection form and the reinforced connection form are discussed, and the research status and seismic performance of different connection technologies are analyzed, and the development of prefabricated shear wall connection technologies is prospected.
    姚丹丹,劉文鋒.基于不同連接技術的裝配式混凝土剪力墻抗震性能研究進展[J].混凝土與水泥制品,2020(9):68-73. YAO D D,LIU W F.Research Progress on Seismic Performance of Prefabricated Concrete Shear Walls Based on Different Connection Technologies[J].CHINA CONCRETE AND CEMENT PRODUCTS,2020(9):68-73.
    鋼筋桁架混凝土疊合板底板吊裝受力性能分析
    鋼筋桁架混凝土疊合板底板吊裝受力性能分析
    • 姚一辰1,韓普各2
    2020年第9期
    摘要
    引用本文
    摘 ? 要:通過疊合板脫模、吊裝荷載的理論計算,建立了有限元模型,利用理論計算驗證了有限元模型的正確性,得到基于共節點模型以對疊合板進行較真實的仿真模擬。討論了吊繩、節間、懸挑長度、板寬及吊環等影響疊合板吊裝的主要因素,在最不利工況下分析了各因素對疊合板受力性能的影響。 Abstract: Through the theoretical calculation of the demoulding and hoisting load of composite slab, the finite element model is established. The correctness of the finite element model is verified by the theoretical calculation. The model based on the common node can simulate the composite slab more realistically. The main factors that affect the hoisting of the composite slab, such as the lifting rope, the internode, the cantilever length, the width of slab and the hoisting lug are discussed. Under the most unfavorable condition, the influence of various factors on the mechanical properties of composite slabs is analyzed.
    姚一辰,韓普各.鋼筋桁架混凝土疊合板底板吊裝受力性能分析[J].混凝土與水泥制品,2020(9):62-67. YAO Y C,HAN P G.Analysis of Mechanical Performance of Reinforced Concrete Composite Slabs with Steel-bar Truss[J].CHINA CONCRETE AND CEMENT PRODUCTS,2020(9):62-67.
    輕質混凝土夾芯復合墻板傳熱系數研究與工程應用
    輕質混凝土夾芯復合墻板傳熱系數研究與工程應用
    • 尚仁杰1,楊 瀟1,侯兆新1,寅志強1,孫小曦2
    2020年第9期
    摘要
    引用本文
    摘 ? 要:蒸壓加氣混凝土與巖棉復合的圍護墻板是一種新型的建筑圍護結構板材,不需要附加保溫層就可滿足寒冷地區的熱工要求。GB 50176—2016《民用建筑熱工設計規范》就如何計算圍護墻板的熱工參數給出了計算方法,但需要相鄰部分熱阻比值不大于1.5,當熱阻比值大于1.5時需要通過傳熱有限元計算考慮熱橋的影響,給傳熱系數計算帶來困難?;诖?,提出了一種傳熱系數的簡化計算方法,借助線性變截面的熱傳導公式,考慮了復合板肋部熱橋影響,以綜合傳熱系數最大為條件,得到了綜合傳熱系數和綜合熱阻。利用所提出的計算方法對某工程外圍護墻板進行了傳熱系數計算,并與有限元計算結果進行了對比,相差僅0.3%,可以滿足工程設計要求。 Abstract: The integrated lightweight composite wallboard made of autoclaved aerated concrete and rock wool panel is a new type of building enclosure system, which can meet the thermal requirements of cold areas in China without additional insulation. GB 50176—2016 The Code for Thermal Design of Civil Buildings gives a thermal calculation method, which requires the thermal resistance ratio of adjacent parts to be less than 1.5, or else it needs to consider the influence of heat bridge by heat transfer finite element calculation. The finite element method brings difficulties to thermal design. Therefore a heat transfer calculation method based on the linear variable cross-section considering the thermal bridge effect of the composite ribs is put forward, and the heat transfer coefficient and thermal resistance of the wallboard are obtained under the condition of maximum heat transfer. The heat transfer coefficient of the composite wallboard is calculated using the method in this paper, and the results are compared with the finite element calculation method, the difference is only 0.3%, which can meet the engineering design requirements.
    尚仁杰,楊瀟,侯兆新,等.輕質混凝土夾芯復合墻板傳熱系數研究與工程應用[J].混凝土與水泥制品,2020(9):57-61. SHANG R J,YANG X,HOU Z X,et al.Study and Application of Heat Transfer Coefficient of Lightweight Concrete Sandwich Composite Wallboard[J].CHINA CONCRETE AND CEMENT PRODUCTS,2020(9):57-61.
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