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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

    高爐鎳鐵渣粉對混凝土性能的影響
    高爐鎳鐵渣粉對混凝土性能的影響
    • 朱恩歡,林云騰,龔 涵,林小青,何型江,林丹軍
    2017年第12期
    摘要
    引用本文
    摘 要:研究了高爐鎳鐵渣粉對混凝土性能的影響。結果表明,高爐鎳鐵渣粉的摻入能有效的改善混凝土的工作性能,摻入25%高爐鎳鐵渣粉制成的鎳鐵渣混凝土28d和56d強度高于純水泥混凝土,且具有良好的體積穩定性和耐久性。 Abstract: The influence of ground ferronickel-granulated blast furnace slag on the performance of concrete is studied. The results show that the ground ferronickel-granulated blast furnace slag powders can improve the concrete workability. When the content of ground ferronickel-granulated blast furnace slag is 25%, the 28d or 56d compressive strength of ferronickel-slag concrete is higher than those of the reference concrete. And the ferronickel-slag concrete has favorable dimensional stability and durability.
    朱恩歡,林云騰,龔涵,等.高爐鎳鐵渣粉對混凝土性能的影響[J].混凝土與水泥制品,2017(12):97-99. ZHU E H, LIN Y T, GONG H,et al.Influence of Ground Ferronickel-granulated Blast Furnace Slag on the Performance of Concrete[J].China Concrete and Cement Products,2017(12):97-99.
    微生物礦化沉積對再生細骨料性能的影響
    微生物礦化沉積對再生細骨料性能的影響
    • 朱亞光,吳延凱,吳春然
    2017年第12期
    摘要
    引用本文
    摘 要:采用DSM8715菌種作為礦化菌,將再生細骨料浸泡在含有礦化菌的礦化培養液中進行礦化處理。通過XRD對礦化沉淀物進行定性分析,并通過測試再生細骨料的表觀密度、壓碎指標、吸水率等來探索微生物礦化沉積對再生細骨料的改善效果;利用SEM觀察了處理前后再細生骨料表面變化。結果表明,菌種DSM8715礦化反應所產生沉淀為方解石型碳酸鈣,經礦化處理后再生細骨料吸水率、壓碎指標、表觀密度都有明顯降低,通過SEM觀察發現,經處理后的再生細骨料表面有碳酸鈣堵塞孔隙。 Abstract: Using DSM8715 strains as mineralization bacteria, the recycled fine aggregate is soaked in the mineralization with mineralization bacteria cultures.The mineralization of precipitation was analyzed by XRD, the cause of the improve of the basic properties is studied and the surface changes of recycled fine aggregate is observed by SEM. The results show that DSM8715 can produce Calcite calcium carbonate by mineralization reaction, the water absorption of recycled aggregate is lower than before, apparent density and crush index values decrease. SEM analysis observation shows that microbial mineralization precipitation can form a good protective structure on the surface of recyclecl fine aggregate, and effectively fill the pores.
    朱亞光,吳延凱,吳春然.微生物礦化沉積對再生細骨料性能的影響[J].混凝土與水泥制品,2017(12):93-96. ZHU Y G, WU Y K, WU C R.Effects of Microbial Mineralization Precipitation on the Performance of Recycled Fine Aggregate[J].China Concrete and Cement Products,2017(12):93-96.
    預制裝配式女兒墻在某工程中的應用研究
    預制裝配式女兒墻在某工程中的應用研究
    • 呂俊杰
    2017年第12期
    摘要
    引用本文
    摘 要:某工程嘗試使用了鋼筋混凝土預制女兒墻并實施了裝配式施工。通過對女兒墻構件優化設計、預制生產、運輸堆放、吊運安裝、灌漿固定等關鍵環節采取相應的技術措施和方法進行有效控制,達到了保證工程質量、提高效率、減少人工、綠色環保的目的。 Abstract: The prefabricated reirforcde concrete parapet was applied in the 8.6 generation Thin film transistor LCD project by using fabricated construction. It has achieved the purpose of ensuring the quality of the project, improving efficiency and reducing artificial and green environmental protection by taking the corresponding methods and effective control for the key process of optimization design, precast production, transport yard, hoisting and installation, grouting fixed and so on.
    呂俊杰.預制裝配式女兒墻在某工程中的應用研究[J].混凝土與水泥制品,2017(12):88-92. LYU J J.Application Study on Prefabricated Fabricated Parapet in a Engineering Case[J].China Concrete and Cement Products,2017(12):88-92.
    鋁合金模板在裝配式框架結構施工中的應用
    鋁合金模板在裝配式框架結構施工中的應用
    • 涂閩杰1,2,王培新1,2
    2017年第12期
    摘要
    引用本文
    摘 要:為保證預制裝配式混凝土框架結構的整體性,連接節點采用現澆施工,裝配式框架結構后澆節點大多在梁柱接頭部位。傳統木模板難以加固,因此提出后澆部位使用鋁合金模板,在構件深化設計階段充分考慮鋁模安裝問題,結合鋁模開孔位置預埋螺栓,大大提升施工效率,加快建設速度,降低工程成本,解決了預制構件與現澆層的外觀質量差異較大問題。 Abstract: In order to ensure the integrity of precast concrete frame structure, the connection node adopts cast-in-site construction method. The post-pouring joints of the assembled frame structure are mostly in the joint parts of the beam and column, the traditional wood formwork is difficult to reinforce, so the post casting parts are made of aluminum alloy template. Fully considering the aluminum formwork installation problem in the component deepening design stage, bolts are embedded in the aluminum formwork opening position, which can greatly improve the construction efficiency, accelerate the construction speed, reduce the project cost, and solve the large appearance quality differences between precast concrete component and cast-in-place layer.
    涂閩杰,王培新.鋁合金模板在裝配式框架結構施工中的應用[J].混凝土與水泥制品,2017(12):85-87. TU M J, WANG P X.Application for Aluminum Formwork in Precast Concrete Frame Structure Construction[J].China Concrete and Cement Products,2017(12):85-87.
    混凝土復合摻合料火山灰活性快速評定方法研究
    混凝土復合摻合料火山灰活性快速評定方法研究
    • 佟銀子1,2,王元綱1,黃凱健1,張高勤1,胡亞風1
    2017年第12期
    摘要
    引用本文
    摘 要:采用三種二元復合摻合料,研究了硅鋁含量測定法和電導率法快速評定復合摻合料火山灰活性的可行性。結果表明,活性硅鋁百分含量、電導率變化率均與28d活性指數之間存在相關性,能反映復合摻合料的火山灰活性。通過建立活性硅鋁百分含量(或電導率變化率)與28d活性指數的擬合方程,可以對復合摻合料的火山灰活性實現快速評定。 Abstruct:Three kinds of binary compound admixtures were used to study on the feasibility of methods which used to rapidly assessing the pozzolanic activity of compound admixtures by the determination of silicon and aluminum content or the electrical conductivity. The results show that the percentage of active SiO2 and Al2O3, or the rate of electrical conductivity change are correlated with the 28d activity index, which can reflect pozzolanic activity of compound admixtures. By establishing the fitting equation between the percentage of active SiO2 and Al2O3 (or the rate of electrical conductivity change) and the 28d active index, the rapid assessment of the pozzolanic activity of compound admixtures can be achieved.
    佟銀子,王元綱,黃凱健,等.混凝土復合摻合料火山灰活性快速評定方法研究[J].混凝土與水泥制品,2017(12):79-84. TONG Y Z,WANG Y G, HUANG K J,et al.Research on Rapid Assessment Method of Pozzolanic Activity of Concrete with Compound Admixture[J].China Concrete and Cement Products,2017(12):79-84.
    蘭州地區泵送混凝土測強曲線及無損檢測方法適用性研究
    蘭州地區泵送混凝土測強曲線及無損檢測方法適用性研究
    • 喬宏霞1,2,路承功1,焦曉光3,胡宸瑞1
    2017年第12期
    摘要
    引用本文
    摘 要:針對無損檢測方法中全國統一回彈測強曲線與超聲聲速和抗壓強度關系曲線應用到地方工程檢測中的差異性,以蘭州地區原材料制作而成的C30~C60四個強度等級的泵送混凝土為研究對象,同時充分考慮齡期的影響,利用最小二乘法原理進行回歸分析分別建立了滿足規范要求的蘭州地區泵送混凝土測強曲線、超聲聲速和抗壓強度關系曲線及抗壓強度和超聲聲速與回彈強度三者之間的關系曲線,并結合國家統一測強曲線和其它地區關系曲線進行了對比分析研究。結果表明,超聲聲速、回彈強度值和混凝土強度值有很好地相關性,不能隨意將其它地區無損檢測關系曲線應用到當地工程檢測之中,由超聲聲速和回彈值共同推定得到的抗壓強度值可以最大限度地規避單一檢測帶來的操作誤差,提高了無損檢測的適用性。 Abstract:Aiming at the difference of the curves of the national unified rebound strength and ultrasonic velocity and compressive strength from different area engineering detection, taking four groups of C30~C60 strength grade pump concrete prepared using the raw materials from Lanzhou area as the research object, and considering the effects of age, the relationship of rebound strength, compressive strength and ultrasonic velocity of these pumping concrete which can meet the requirements of the codes were studied using the least square method regression analysis. And the national unified strength curve and other regional relationship curves are comparatively analyzed. The results show that there is a good correlation between ultrasonic velocity, rebound strength and concrete strength. The non-destructive testing curves in other areas should not be applied to the regional engineering testing. The value of compressive strength obtained by ultrasonic velocity and rebound value can avoid the operation error caused by single detection, and improve the applicability of nondestructive testing.
    喬宏霞,路承功,焦曉光,等.蘭州地區泵送混凝土測強曲線及無損檢測方法適用性研究[J].混凝土與水泥制品,2017(12):74-78. QIAO H X, LU C G, JIAO X G,et al.Study on Applicability of Strength Curves of Pumping Concrete and Nondestructive Testing Method in Lanzhou Area[J].China Concrete and Cement Products,2017(12):74-78.
    裝配式混凝土結構質量行為控制要點初探
    裝配式混凝土結構質量行為控制要點初探
    • 鄧志良1,周廣良2
    2017年第12期
    摘要
    引用本文
    摘 要: 裝配式混凝土結構在設計、生產、施工、安裝、監理、檢測過程中,各種質量行為直接影響到工程質量,為保證裝配式結構工程的質量安全,探討了裝配式混凝土結構參建各方的質量行為控制要點。 Abstract:During the process of design, production, construction, installation, supervision and testing of assembled concrete structures, various quality behaviors affect the quality of the project directly . In order to ensure the quality and safety of the fabricated structure engineering, the quality behavior control points are discussed.
    鄧志良,周廣良.裝配式混凝土結構質量行為控制要點初探[J].混凝土與水泥制品,2017(12):69-73. DENG Z L, ZHOU G L.Discussion on Quality Behavior Control Points of Fabricated Concrete Structure[J].China Concrete and Cement Products,2017(12):69-73.
    裝配式建筑構件生產工藝設計探討
    裝配式建筑構件生產工藝設計探討
    • 李 應
    2017年第12期
    摘要
    引用本文
    摘 要:根據裝配式建筑構件的特點,簡述了裝配式建筑構件廠設計的思路,介紹了機組流水法、流水傳送法和臺座法的工藝特點和適用范圍。分析了目前工藝設計中存在的一些問題,提出應根據產品特點合理選擇生產工藝,以減少浪費、提高效率。 Abstract: According to the characteristics of the assembled building components, the thought of the prefabricated building component factory design is resumed. The technical characteristics and using range of water flow unit method, transmission method and the pedestal method are introduced. Some problems existing in the process design are analyzed, and the reasonable selection of production technology according to the characteristics of the product is proposed to reduce waste and improve efficiency.
    李應.裝配式建筑構件生產工藝設計探討[J].混凝土與水泥制品,2017(12):65-68. LI Y.Discussion for Production Process Design of Prefabricated Building Component[J].China Concrete and Cement Products,2017(12):65-68.
    化學發泡鎂水泥輕質泡沫混凝土影響因素分析研究
    化學發泡鎂水泥輕質泡沫混凝土影響因素分析研究
    • 劉文斌1,周 慧1,劉日鑫1,肖雪軍1,邵 煥2
    2017年第12期
    摘要
    引用本文
    摘??要:通過正交法對化學發泡鎂水泥輕質泡沫混凝土影響因素進行了分析。結果表明,四個因素中磷酸對鎂水泥混凝土強度影響最大,氯化鎂用量對軟化系數影響最明顯。XRD分析表明樣品中存在大量的5Mg(OH)2·MgCl2·8H2O(相5)和少量的Mg(OH)2,也有氯化鎂相和氧化鎂相。SEM分析表明,生成的518相以纖維狀形式存在,夾雜在片狀Mg(OH)2之間。Abstract:Theinfluencefactorsoffoamedmagnesiumcementlightweightfoamconcreteareanalyzedbyorthogonalmethod.TheresultsshowthatthegreatesteffectonthestrengthoffoamconcreteisH3PO4andtheeffectofmagnesiumchlorideonthesofteningcoefficientisthemostobviousofthefourfactors.XRDanalysisshowsthatalargenumberof5Mg(OH)2-MgCl2-8H2O(phase5)andasmallamountofMg(OH)2existinsample,themagnesiumchloridephaseandtheMagnesiumOxidephaseisobserved.The518phaseexistsamongMg(OH)2astheformationofthefiberform.
    劉文斌,周慧,劉日鑫,等.化學發泡鎂水泥輕質泡沫混凝土影響因素分析研究[J].混凝土與水泥制品,2017(12):61-64. LIU W B, ZHOU H, LIU R X,et al.Analysis Research on Influence Factors of Magnesium Cement Lightweight Foam Concrete Using Chemical Foamed Method[J].China Concrete and Cement Products,2017(12):61-64.
    纖維格柵增強水泥混凝土彎曲性能試驗研究
    纖維格柵增強水泥混凝土彎曲性能試驗研究
    • 郭 旺,蘇 駿
    2017年第12期
    摘要
    引用本文
    摘??要:為研究基體混凝土強度、配網率及纖維格柵表面處理方式對水泥混凝土抗彎性能的影響,對十組600mm×600mm×100mm的混凝土方板試件進行了抗彎性能試驗,分析了試件破壞過程。結果表明,與基體強度C30相比,基體強度為C40時,水泥混凝土的抗彎強度提高了28.1%~32.5%;與素混凝土相比,鋪設一層纖維格柵,使混凝土抗彎強度提高7.15%~11.05%,鋪設兩層格柵使混凝土抗彎強度提高12.8%~24.6%;鋪設纖維格柵使混凝土的開裂荷載提高了1.25%~9.87%;格柵表面刷環氧樹脂并黏砂處理后,能有效改善纖維束的整體受力性能,使混凝土的抗彎強度提高了3.1%~7.0%。Abstract:Inordertoinvestigatetheinfluenceofconcretematrixstrength,criticaltextileratioandsurfacetreatmentmethodsoffibergridontheflexuralpropertiesofcementconcrete,tengroupsofsquareconcreteplateswithdimensionsof600mm×600mm×100mmweretestedthroughbendingexperiment,andthefailureprocessesofthespecimenswereanalyzed.TheresearchresultshowsthatcomparedwithC30concrete,thebendingstrengthofC40concreteisimprovedby28.1%to32.5%;comparedwithplainconcrete,thebendingstrengthofconcretewithlayingalayeroffibergridcanincreaseby7.15%to11.05%,andthebendingstrengthofconcretewithlayingtwolayersfibergridcanincreaseby12.8%to24.6%.Becauseoflayingfibergrid,thecrackingloadofconcretecanincreaseby1.25%to9.87%.Thefibergridsurfaceistreatedwithepoxyresinandsand,whichcaneffectivelyimprovethestressperformanceofthefiberbundle,andthebendingstrengthofcementconcreteisimprovedby3.1%to7.0%.
    郭旺,蘇駿.纖維格柵增強水泥混凝土彎曲性能試驗研究[J].混凝土與水泥制品,2017(12):57-60. GUO W, SU J.Experimental Study on Flexural Properties of Fiber Grid Reinforced Cement Concrete[J].China Concrete and Cement Products,2017(12):57-60.
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