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    蘇州混凝土水泥制品研究院有限公司

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    第三期

    清水混凝土在常州高架二期工程中的應用
    清水混凝土在常州高架二期工程中的應用
    • 汪 海,張 珉
    2011年第3期
    摘要
    引用本文
    摘 要:介紹了清水混凝土在常州高架二期工程中的應用。通過實際工程,具體闡述了清水混凝土的配合比設計、原材料質量控制以及施工技術要點。 Abstract: The application of fair-faced concrete in Changzhou Secondary Viaduct Project is introduced. Through practical project, the mix proportion design of fair-faced concrete, quality control of raw materials and key points of construction technology are concretely described.
    超厚超長型筏形基礎加強帶的施工技術
    超厚超長型筏形基礎加強帶的施工技術
    • 龍葉天,周佳軍,雷曉勤,張振興
    2011年第3期
    摘要
    引用本文
    摘 要: 超高層大型建筑目前已經成為城市建設中重要的組成部分?;诔呓ㄖQ向荷載較大的特點,其基礎形式多采用超長超大厚度的筏形基礎。而筏板基礎往往因為建筑長度較長,依據相關規范要求設置多道后澆帶,由此產生了大厚度、小凈空、變截面的后澆帶施工難題。結合成都某工程地下室筏形基礎工程所采用的混凝土膨脹加強帶施工技術,介紹了超厚超長大體積混凝土一次澆筑無縫施工技術,在實踐中對傳統后澆帶的優化替代方案進行了探索。 Abstract: Currently super high-rise large buildings have become the important components in city construction. Based on the characteristic of large erect load for super high-rise buildings, raft foundation with super-long and super-large thickness is adopted to its foundation form. Because of longer building length for raft foundation, according to relevant specification, multi-channel late poured bands should be set, therefore, construction difficulties about large thickness, small clearance and variable cross-section of late poured bands are appeared. Combining with a raft foundation of basement in one Chengdu project, with the construction technique for concrete expansion reinforcing band, jointless construction for one-time-concreting to super-thick and super-long mass concrete is achieved. And optimal substitutive proposals of traditional late poured bands are explored and practiced.
    低碳儲能復合建筑材料制備及性能研究
    低碳儲能復合建筑材料制備及性能研究
    • 譚曉倩,王立久
    2011年第3期
    摘要
    引用本文
    摘 要:在常溫常壓條件下,研制了一種以堿性激發劑激發礦渣、生土為基材,以吸附儲能相變石蠟的膨脹珍珠巖作為輕質骨料的低碳儲能復合建筑材料(LPM),其28d抗折強度和抗壓強度分別可達4.95MPa、23.05MPa。測試了材料的溫度隨環境溫度及時間變化關系以及導熱性能、力學性能,同時與硅酸鹽水泥 (OPC)進行了對比。結果表明:在外界溫度發生變化時,此種復合建筑材料較硅酸鹽水泥具有導熱系數低,升溫、降溫速度慢,溫度變化平緩、波動小的優點,且具有較好的力學性能。 Abstract: Under the normal temperature and pressure condition, a kind of low carbon emission and power storage composite building material (LPM) is prepared, which is using alkaline activated agent acting slag and clay as the substrate, and using expand perlite with adsorption and power storage phase change paraffin as light aggregate. The corresponding flexural and compressive strength can reach 4.95MPa and 23.05MPa. The variation of temperature with environment temperature and time, thermal conductivity and mechanism properties are tested, meanwhile, the LPM is contrasted to the ordinary Portland cement (OPC) as reference one. The results indicate that when the environment temperature changes, compared with the ones of OPC, the thermal conductivity of LPM is lower, the temperature rising and cooling of LPM changes more slowly and the temperature fluctuation is less. Furthermore, the mechanism properties of LPM are better than the ones of OPC.
    湖南省建筑墻體自保溫體系綜合評價
    湖南省建筑墻體自保溫體系綜合評價
    • 王 鵬,楊偉軍,周英杰
    2011年第3期
    摘要
    引用本文
    摘 要:墻體自保溫是夏熱冬冷地區建筑節能工作的發展趨勢,本文結合湖南省建筑節能的現狀,對湖南省墻體自保溫體系進行了系統的介紹和分析。通過對五種自保溫墻體材料性能的介紹,對各種墻體自保溫材料的特點進行了分析,并結合應用實際提出了相關建議。 Abstract:The self-thermal insulation for the wall is the trend for the work of building energy saving in the hot summer and cold winter zone. Combining with the current situation of building energy saving of Hunan Province, the systemic introduction and analysis on the system of self-thermal insulation for the wall in Hunan Province are carried out. Through the introduction of the properties of five kinds of self-thermal insulation wall materials, the characteristics of self-thermal insulation wall materials are analyzed, and according to the application practice, the relevant suggestions are offered.
    現澆混凝土CBM內??招臉巧w的施工實踐
    現澆混凝土CBM內??招臉巧w的施工實踐
    • 王瀟洲
    2011年第3期
    摘要
    引用本文
    摘??要:現澆混凝土CBM自穩型內??招臉巧w具有輕質高強、抗振動性能及保溫隔音性能好的優點,而且施工方便,經濟實用。工程實踐表明,抗浮是混凝土空心樓蓋施工的關鍵技術,施工過程中只要加強對CBM管安裝固定、混凝土澆筑等關鍵工序的質量控制,空心樓蓋施工質量就可以得到有效保障。Abstract:Theself-stabilizationCBMtubesincast-in-placeconcreteofhollowfloorhavetheadvantagesoflightweight,highstrength,anti-vibration,heatpreservationandgoodsoundproofperformance,furthermore,itiseasytobeconstructed,economicalandpractical.Theengineeringpracticeprovesthatanti-floatingisakeytechniqueinconstructionofcast-in-placeconcreteofhollowfloor,andthequalityofhollowfloorwillbeeffectivelyguaranteedaslongasthequalitycontrolofthekeyprogramssuchasthefirm-installmentofCBMtubesandtheprocessofpouringconcrete,isstrengthened.
    混凝土砌塊砌體剪壓作用下抗剪強度公式研究
    混凝土砌塊砌體剪壓作用下抗剪強度公式研究
    • 張 潞1, 宋 力2
    2011年第3期
    摘要
    引用本文
    摘 要:通過對主拉應力破壞理論和庫侖破壞理論及墻體抗剪時的三種破壞形態的分析,研究了混凝土砌塊砌體在剪壓復合受力下抗剪強度計算方法,建立了混凝土砌塊砌體抗剪強度公式。 Abstract: The shear strength computational methods of concrete block masonry under shear-compression loading are studied based on the analysis of the maximum tensile stress theory, the classic Coulomb friction law and the three kinds of failure models of the wall against shearing. And the shear strength formula of concrete block masonry is established.
    水鎂石纖維路面混凝土性能影響因素的灰關聯熵分析
    水鎂石纖維路面混凝土性能影響因素的灰關聯熵分析
    • 張曉旭1,仇玉良1,劉開平2,關博文2
    2011年第3期
    摘要
    引用本文
    摘 要:通過強度試驗,運用灰關聯熵的系統分析方法,分析了水灰比、纖維長徑比、纖維摻量、減水劑摻量,坍落度等因素對路面混凝土28d抗彎拉強度和壓折比影響的主次關系和影響程度。分析表明,對于水鎂石纖維路面混凝土,水灰比是一個非常重要的參數;水鎂石纖維的長徑比及摻量也是混凝土強度的重要因素。結果證明,在水泥混凝土多因素的分析中,灰關聯熵法是一種簡單實用且結果比較準確的方法,其結論可為水鎂石混凝土配合比設計參數提供有效的計算依據。 Abstract:Through the compressive strength test, the major and minor relationship and effects of the factors of water-cement ratio, length-diameter ratio of brucite fiber, dosage of fiber, dosage of water reducer and slump on 28d flexural strength and ratio of compressive strength to flexural strength of pavement concrete are analyzed by using systematic analysis method of grey relation entropy. The results indicate that for brucite fiber reinforced pavement concrete, the water-cement ratio is a very important parameter, the length-diameter ratio and the dosage of brucite fiber are also the important factors affecting the strength of concrete. The results prove that in the multifactor analysis for cement concrete, the gray relation entropy method is a kind of simple, practical and resulting accurate method, and the conclusion can provide a valid calculation basis for design parameter of mix proportion of brucite concrete.
    嚴寒地區聚丙烯纖維砂漿應用于陶?;炷翂w抗裂的性能研究
    嚴寒地區聚丙烯纖維砂漿應用于陶?;炷翂w抗裂的性能研究
    • 呂 春1, 劉 杰2
    2011年第3期
    摘要
    引用本文
    摘??要:針對嚴寒地區陶?;炷疗鰤K墻體極易產生裂縫的現狀,在墻體飾面砂漿中摻加聚丙烯纖維以改善砂漿的抗裂性能。試驗研究了聚丙烯纖維長度及摻量對陶?;炷疗鰤K墻體飾面砂漿的抗壓、抗折、抗裂性能的影響。結果表明,聚丙烯纖維的最佳長度為15mm,最佳摻量為0.15%~0.20%。Abstract:Forthestatusofceramicconcreteblockwallcausingcrackseasilyincoldareas,?thecrackresistanceofmortarcanbeimprovedbyaddingthepolypropylenefiberinthewallfacingmortar.Theeffectsofthelengthanddosageofpolypropylenefiberoncompressivestrength,flexuralstrengthandcrackresistanceoffacingmortarinceramicconcreteblockwallareresearchedbyexperiment.Theresultsshowthattheoptimumlengthofpolypropylenefiberis15mm,andtheoptimumdosageis0.15%~0.20%.
    玄武巖纖維增強、阻裂性能的試驗研究
    玄武巖纖維增強、阻裂性能的試驗研究
    • 何軍擁1,2,黃小清1,田承宇3
    2011年第3期
    摘要
    引用本文
    摘 要:試驗研究了不同摻量的玄武巖纖維對高性能混凝土和易性、抗壓強度、抗折強度和抗拉強度的影響。結果發現,摻入玄武巖纖維后,混凝土的坍落度略有降低,但粘聚性能和保水性大大提高,且7d抗壓強度和28d抗折強度明顯提高。試驗結果還表明,在水泥砂漿中摻入亂向短切玄武巖纖維后,其強度及抗裂性能均得到改善。此外,在低摻量情況下,玄武巖纖維與聚丙烯纖維對混凝土增強、增韌性能的影響基本一致。 Abstract:The effects of different dosages of basaltic fiber on workability, compressive strength, flexural strength and tensile strength of high performance concrete are researched by experiment. The results indicate that after adding basaltic fiber, the slump of concrete is slightly decreased, but cohesion properties and water retention are greatly increased. 7d compressive strength and 28d flexual strength are obviously increased. Experimental results also show that after adding random short-cut basaltic fiber into cement mortar, the strength and crack resistance of mortar are both improved. Besides, under the situation of low dosage, the influences of basaltic fiber on reinforcing and toughening performances of concrete are basically identical with the influences of polypropylene fiber.
    用組合模型預測軟土地基樁基沉降
    用組合模型預測軟土地基樁基沉降
    • 丁 斌
    2011年第3期
    摘要
    引用本文
    摘 要:結合溫州地區某樁基工程實測沉降數據,以多元回歸分析模型、時間序列分析模型及GM(1,1)灰色理論模型為組合模型的子模型,經大量數據的演算,探討了不同組合模型建模方案在對歷史數據的擬合及未知數據的預測上的不同特點,總結了各種組合模型的一般規律及其適用性 Abstract:Combining with the actually monitoring settlement data of one pile foundation project in Wenzhou district, using multivariate regression analysis model, time-series analysis model and grey theory model GM(1,1) as the submodel of combined models, the different characteristics of historical data fitting and unknown data forecasting made by different modeling scheme of combined models are discussed according to a lot of calculus of data, and the general law and its applicability are summarized for the different combined models.
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