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    蘇州混凝土水泥制品研究院有限公司

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    第十二期

    廢棄礦物摻合料水工混凝土抗碳化性能試驗研究
    廢棄礦物摻合料水工混凝土抗碳化性能試驗研究
    • 趙井輝,劉福勝,周廣發,武義馨,程 明,劉棟梁
    2014年第12期
    摘要
    引用本文
    摘 要:通過加速碳化方法,研究了水工混凝土單摻花崗巖石粉、單摻粉煤灰及雙摻花崗巖石粉及粉煤灰時的抗碳化性能。結果表明,水工混凝土雙摻礦物摻合料時的抗碳化性能優于單摻礦物摻合料時的抗碳化性能,且混凝土抗碳化性能隨著礦物摻合料摻量及細度的變化,呈現規律性變化。 Abstract: The carbonation resistances of hydraulic concrete mixed with granitic powder or fly ash and hydraulic concrete double mixed with granitic powder and fly ash are studied through the method of accelerated carbonation. And the results show that the carbonation resistance of hydraulic concrete double mixed with granitic powder and fly ash is better than that of hydraulic concrete single mixed with admixture, and the carbonation resistance is changed regularly with the change of content and fineness of mineral admixtures.
    某圖書館吊柱施工
    某圖書館吊柱施工
    • 胡友好
    2014年第12期
    摘要
    引用本文
    摘 要:結合工程實例,介紹了某圖書館懸挑結構中吊柱施工的關鍵工藝,并介紹了相關的施工方法,可為類似結構工程施工參考。 Abstract: Combined with an actual project,the key process to hanging pillar with construction cantilever structure of a library and related construction method are introduced,the result has provided references for the similar construction.
    上反式承臺單側支模施工技術
    上反式承臺單側支模施工技術
    • 潘 毅,武雄飛,王棟杰,劉學飛,劉國棟
    2014年第12期
    摘要
    引用本文
    摘 要:在大多數塔樓底板設計中,混凝土裙樓底板完成面與塔樓底板完成面在同一標高處,即塔樓采用下挖式基礎,該類基礎側面支模較為簡單。本工程塔樓底板混凝土為上反式基礎,基礎完成面比裙樓完成面高4.3m,側壁支模難度較大。本文主要講述了上反式承臺側壁單側支模在成都環球貿易廣場的成功應用,可為其他類似工程提供借鑒。 Abstract: In the most of design of the tower floor, floor complete faces of concrete skirt building and tower are at the same level, that’s to say tower uses digging type foundation whose single-side formwork is relatively simple. In this project, the tower floor concrete is anti-form foundation, its floor complete face is 4.3m taller than that of skirt building floor, and it’s difficult for side-wall formwork. Here, the succeed application case of single-side formwork of anti-form cushion cap side-wall in ICC of Chengdu is introduced, and it can provide some references for other similar projects
    建材行業標準《預制混凝土檢查井》編制簡介
    建材行業標準《預制混凝土檢查井》編制簡介
    • 劉遠祥,余洪方
    2014年第12期
    摘要
    引用本文
    摘 要:建材行業標準JC/T 2241-2014《預制混凝土檢查井》即將頒布實施,為了便于使用者準確貫徹實施標準條款的具體要求和規定,對該標準的編制目的、編制過程作了介紹,并對其主要條款作了解釋和說明。 Abstract:Building materials industry standard JC/T 2241-2014“Prefabricated concrete manhole” will be issued and implemented. In order to facilitate users to accurately implement the specific requirements of the standard terms and rules, the compilation background, purpose and significance of industry standard“Prefabricated concrete manhole” are introduced, and the main items of the standard are explained.
    水泥-粉煤灰改性脫硫石膏基自保溫砌塊的研究
    水泥-粉煤灰改性脫硫石膏基自保溫砌塊的研究
    • 許國東1,2,李 寧3 ,林 平3
    2014年第12期
    摘要
    引用本文
    摘 要:分析了水泥-粉煤灰改性脫硫石膏基自保溫砌塊的原材料性能以及配合比,介紹了砌塊的生產工藝和產品性能。采用有機無機復合的方法對脫硫石膏改性,其物理力學和熱工性能滿足夏熱冬冷地區建筑節能自保溫墻體的要求。 Abstract: The properties and mixture ratio of raw materials of thermal insulation block from desulfurization gypsum modified by cement and fly ash are analyzed, and the production technology and product performance of the desulfurization gypsum building block are introduced. The physical-mechanical and thermal performance of the desulfurization gypsum building block can meet the requirements of the building energy efficiency insulated wall in the area with hot summer and cold winter by using the method of organic and inorganic compound to modify desulfurization gypsum.
    預拌砂漿用外加劑的技術經濟特性分析
    預拌砂漿用外加劑的技術經濟特性分析
    • 范紅兵1,胡建安2,王 濤3
    2014年第12期
    摘要
    引用本文
    摘 要:隨著預拌砂漿的推廣和普及,作為改善砂漿性能的外加劑得到了廣泛的應用,不同的外加劑對砂漿的技術性能有著不同的作用。研究了四種不同砂漿外加劑對預拌砂漿技術性能的影響,結果表明,砂漿外加劑不同的摻量對砂漿的性能影響較大,當外加劑的摻量為0.025%~0.075%時,能有效提高砂漿的抗壓強度和拉伸粘結強度。外加劑的摻入可以改善砂漿的收縮率和抗凍性,多組分的砂漿外加劑體現出較為優異的技術經濟特性。 Abstract:With the promotion and popularization of ready mixed mortar,admixture which can improve the performance of mortar has been widely used. Admixtures would affect the performance of building mortar. Here, the effect of four kinds of mortar admixture on the performance of mortars is investigated, and the results show that the admixture content has a great effect on the performance of the mortar. When the admixture content is 0.025%~0.075%, the compressive strength and tensile strength of mortars increase effectively, and the shrinkage and freezing resistance are improved as well. The mortar admixture with multi-component shows more prominent technical and economic characteristics.
    砌法對混凝土空心砌塊熱工性能的影響
    砌法對混凝土空心砌塊熱工性能的影響
    • 魏 玲1,肖 婷2
    2014年第12期
    摘要
    引用本文
    摘 要:運用數值計算的方法模擬了24種不同孔洞結構的240mm×115mm×90mm(長×寬×高)粉煤灰小型空心砌塊的耦合傳熱過程,得出單個空心砌塊的當量導熱系數值。模擬中考慮沿著砌塊長度方向及寬度方向傳熱對當量導熱系數的影響。結果表明:沿著傳熱垂直方向增加孔數減弱了砌塊的保溫隔熱效果,沿著傳熱平行方向增加孔數增強了砌塊的保溫隔熱性能。另外,還對三種砌法的砌筑單元結果進行了比較,選出了最優方案,此種砌法不僅減少了尋找最優孔型的工作量和時間,而且新型砌法的結果比以往方法找出的最優方案要為理想。 Abstract: The coupled heat transportation process of 240mm×115mm×90mm(length × width × height)fly-ash small-sized hollow block with 24 kinds of configurations with different hole number and arrays was simulated, and equivalent thermal conductivity (ETC) of single hollow block was obtained. Heat transfer along length and width direction of the hollow block is considered in the simulation. The results show that with the increase of the holes number in vertical direction of heat transfer, the effect of thermal insulation on hollow blocks is weakened, but with the increase of the holes number in parallel direction of heat transfer, the effect of thermal insulation on hollow blocks is enhanced. The results of three kinds of methods of bricklaying with trowel on masonry units are compared, which helps to pick out the optimal solution. This method can not only reduce the workload and time to find the optimal groove, but the result using new method is better than that of using the conventional method.
    高溫火災下?;⒅楸鼗炷涟宓臏囟葓龇治? />
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                          <a href="/product/1912.html" target="_parent" class="title"><i class="iconfont12"></i>高溫火災下?;⒅楸鼗炷涟宓臏囟葓龇治?/a>
                        
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                                      <span class="attrValue"><i class="iconfont2"></i> 李飛飛,張澤平 </span>
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                                      <span class="attrValue"> 2014年第12期</span>
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                            <span class="newMs">摘   要:通過對?;⒅楸鼗炷猎噳K的高溫試驗研究,確定了高溫(火災)條件下的物理力學及熱工性能,并進一步運用有限元分析軟件ABAQUS對?;⒅楸鼗炷涟暹M行了火災高溫條件下的模擬分析,得出其火災高溫條件下的溫度場的分布規律。
Abstract: The temperature tests of glazed hollow beads insulation concrete blocks are carried out to study and determine mechanical and thermal performance of the test blocks under the fire high temperature. Then the glazed hollow beads insulation concrete plates are simulated and analyzed by using finite element analysis software ABAQUS under fire high temperature, and the distribution rule of temperature field under the condition of fire high temperature is obtained.</span>
                         
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    不同軸壓比下碳纖維混凝土柱滯回性能研究
    • 徐亞豐,陳 謙,張曉平
    2014年第12期
    摘要
    引用本文
    摘 要:采用C30混凝土按碳纖維體積摻量2‰進行配合比設計,制作了3個試驗試件柱,對其進行水平低周往復加載,分析其在軸壓比0.4、0.5、0.6下試件的滯回曲線、骨架曲線及位移延性系數;同時采用ABAQUS軟件對碳纖維混凝土柱的滯回性能進行有限元分析,得到碳纖維柱的滯回曲線和應力云圖。結果表明,軸壓比的變化對試件滯回曲線的飽滿程度影響不大,不同軸壓比下試件的滯回曲線均比較飽滿,沒有出現捏攏現象,到達極限承載力后,曲線下降平緩;隨著軸壓比的增大,試件的極限承載力降低,所對應的極限位移和延性系數均減小。采用ABAQUS軟件模擬得到的曲線與試驗所得曲線吻合較好。 Abstract: Three specimens of carbon fiber reinforced concrete columns with C30 concrete strength grade and 2‰ carbon fiber are tested to study their hysteresis curve, skeleton curve and displacement ductility coefficient when the axial compressive ratios are 0.4, 0.5 and 0.6. And carbon fiber concrete columns are analyzed by using the finite element software ABAQUS, the hysteretic curve and stress nephogram of the columns are achieved. The results show that the change of axial compression ratio has little influence on the full extent of the hysteretic curves. The hysteretic curves under different axial compression ratios are full without significant pinch phenomenon. When the limit bearing capacity of the columns is reached, the skeleton curve decreases slowly. With the increase of axial load ratio, the ultimate bearing capacity and limit displacement decrease. The simulation curve and experimental curve are in good agreement which proved the rationality of simulation.
    摻聚丙烯纖維高強混凝土高溫后導溫性能研究
    摻聚丙烯纖維高強混凝土高溫后導溫性能研究
    • 王飛劍,張 琦,杜紅秀,閻蕊珍
    2014年第12期
    摘要
    引用本文
    摘 要:分別對摻聚丙烯纖維高強混凝土和素高強混凝土高溫后導熱系數、表觀密度進行了試驗研究,分析了兩者的表觀密度、導熱系數和導溫系數的變化規律,結果表明,高溫后摻聚丙烯纖維高強混凝土和素混凝土的表觀密度、導熱系數均呈下降趨勢,高溫前后摻聚丙烯纖維高強混凝土比素高強混凝土的表觀密度小、導熱系數和導溫系數大,而且其導熱系數和導溫系數隨溫度變化規律更為明顯。 Abstract: The thermal conductivity and the apparent density of the polypropylene fiber reinforced HSC and plain HSC were tested and studied. The results indicate that the apparent density, thermal conductivity and thermal diffusivity of polypropylene fiber reinforced HSC and plain HSC all show downward trends after elevated temperature. Before and after elevated temperature, the apparent density of polypropylene fiber reinforced HSC is smaller than that of plain HSC, but its the thermal conductivity and thermal diffusivity are bigger those of plain HSC, and change rules of thermal conductivity and thermal diffusivity of polypropylene fiber reinforced HSC with temperature are more regular.
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