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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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    第一期

    高性能鋰渣混凝土的研究及應用
    高性能鋰渣混凝土的研究及應用
    • 劉登賢,麻鵬飛,吳 鑫,陳瀏全,周楷文,譚先長
    2018年第1期
    摘要
    引用本文
    摘 要:為了將工業副產品鋰渣應用到混凝土中,試驗分析了鋰渣的物相成分和化學組成,先將鋰渣單摻取代水泥,再將鋰渣分別與礦渣、粉煤灰雙摻到混凝土中,研究鋰渣對混凝土工作性能、力學性能、耐久性的影響。結果表明,鋰渣取代10%~20%的水泥后,混凝土和易性良好,但鋰渣摻量大于20%時,隨著鋰渣摻量的增大混凝土黏稠度增大。粉煤灰與鋰渣雙摻時,混凝土的工作性好于鋰渣與礦粉雙摻;鋰渣摻量在10%~40%時,符合混凝土早期凝結時間要求;混凝土吸水率隨著鋰渣摻量的增大先增大后減小,并隨著養護齡期的增加而降低;采用鋰渣與礦粉、粉煤灰雙摻技術,有助于提高混凝土的長期抗氯離子滲透性能。 Abstract: To apply lithium slag(a kind of industrial by-product) in concrete, the phase composition and chemical composition of lithium-slag are analyzed. Firstly, the cement is replaced with single doped lithium slag. Then the influence of lithium slag on the workability, mechanical properties, durability of concrete is carried out with the lithium slag and slag, fly ash respectively double mixing. The result shows that when the dosage is 10%~20%, it can improve the workability of concrete. But when the dosage is more than 20%, concrete viscosity increases with the increasing of lithium-slag content. The workability of lithium-slag and fly ash mixed is better than that of the mixture of lithium slag and mineral powder. When the dosage is 10%~40%, it can conform to the requirements of the setting time of the early concrete. The water absorption of concrete increases first then decreases with the increase of lithium-slag content, and reduce with the increase of curing age. Using the double mixing technology of the lithium-slag and ash, fly ash can improve the chloride resistance permeability of concrete.
    劉登賢,麻鵬飛,吳鑫,等.高性能鋰渣混凝土的研究及應用[J].混凝土與水泥制品,2018(1):96-100. LIU D X,MA P F,WU X,et al.Study and Application of High Performance Lithium-slag Concrete[J].China Concrete and Cement Products,2018(1):96-100.
    石中泥粉對混凝土性能的影響研究
    石中泥粉對混凝土性能的影響研究
    • 劉 浩1,2,路振剛3,4,劉亞蓮4,趙 陽4,胡云鶴4,張治洲4,孟繼慧4,蔡景順1,2
    2018年第1期
    摘要
    引用本文
    摘 要:通過凈漿、砂漿試驗排除了水泥、粉煤灰、礦粉及砂子造成坍落度快速損失的可能。通過混凝土中摻入不同比例的泥粉,考察了泥粉對混凝土坍落度、擴展度、含氣量及強度的影響,結合熒光、XRD和總有機碳吸附試驗分析了泥粉產生影響的原因。試驗結果表明,聚羧酸減水劑主要被泥粉中蒙脫土大量吸附,使聚羧酸減水劑的塑化性能嚴重降低;泥粉的摻入使混凝土初始含氣量有所降低,但對混凝土含氣量的穩定較為有利;抗壓強度的降低可能因為泥粉削弱了混凝土界面過渡區。 Abstract: The possibility of slump loss of cement, fly ash, mineral powder and sand was eliminated by the cement paste and mortar test. The influence of clay on the slump, slump flow, air content and compression strength of concrete is studied by XFR, XRD and TOC. The results showed that montmorillonite are contained in the clay and the adsorption of superplasticizer is the main cause of property reduced. Compared with concrete with no clay, air content decreases and remains stable when clay added in concrete. The decrease of compression strength may due to weakening of the interfacial transition zone.
    劉浩,路振剛,劉亞蓮,等.石中泥粉對混凝土性能的影響研究[J].混凝土與水泥制品,2018(1):93-95. LIU H,LU Z G,LIU Y L,et al.Influence Research of Clay on Properties of Concrete[J].China Concrete and Cement Products,2018(1):93-95.
    C50混凝土溫升模擬及其在超大體積底板中的應用
    C50混凝土溫升模擬及其在超大體積底板中的應用
    • 朱春銀1,趙 峰1,林 瑋2,武建好1,李佳加1,姚 婷2
    2018年第1期
    摘要
    引用本文
    摘 要:結合南京金鷹天地廣場項目三棟塔樓大體積底板混凝土施工及技術要求,模擬澆筑C50P10大體積混凝土深基坑,同時通過預埋傳感器的方法對混凝土進行溫度和變形監測,可為實際生產提供技術依據。 Abstract: Based on the concrete construction and technical requirements of the large baseplate of three towers in Nanjing GOLD EAGLE square, the concrete pouring of C50P10 was simulated to provide the technical basis for the actual production. Meanwhile, real-time monitoring of concrete pit for temperature and deformation was carried out by embedded sensors.
    朱春銀,趙峰,林瑋,等.C50混凝土溫升模擬及其在超大體積底板中的應用[J].混凝土與水泥制品,2018(1):89-92. ZHU C Y,ZHAO F,LIN W,et al.Simulation of Temperature Rise of C50 Concrete and Its Application in Super Large Baseplate[J].China Concrete and Cement Products,2018(1):89-92.
    筏板基礎大體積混凝土水化熱溫度場數值模擬
    筏板基礎大體積混凝土水化熱溫度場數值模擬
    • 劉亞朋1,2,古 錚1,2,李 盛1,2,王起才1,2,寧貴霞1,2,賈 濤3
    2018年第1期
    摘要
    引用本文
    摘 要:采用三維數值模擬某筏板基礎工程,分析了不同厚度處的水化熱溫度場分布。結果表明,筏板基礎不同厚度處混凝土內部最高溫度均隨著入模溫度的提高而增加,表面溫度隨著保溫措施的增加而增大。最后,對于B2區筏板基礎提出了最優方案,即入模溫度為20℃,8.25m、3.4m、2.7m厚度處分別采用5cm、2cm、2cm厚橡塑板保溫,最大溫差值均控制在20~25℃。 Abstract: Three-dimensional numerical simulation of a raft foundation project is used to analyze the temperature distribution of hydration heat at different thickness. The results show that the interior maximum temperature of concrete in different thickness of raft foundation increases with the increase of molding temperature, and the surface temperature increases with the increase of thermal insulation measures. Finally, the optimum scheme is put forward for the raft foundation of B2 district, which takes the mold temperature of 20 degrees and use 5cm, 2cm and 2cm thickness rubber plastic plate for insulation measure of 8.25m, 3.4m and 2.7m meter thickness, the maximum temperature difference being should be controlled between 20 degrees to 25 degrees.
    劉亞朋,古錚,李盛,等.筏板基礎大體積混凝土水化熱溫度場數值模擬[J].混凝土與水泥制品,2018(1):84-88. LIU Y M,GU Z,LI S,et al.Numerical Simulation of Hydration Heat Temperature Field of Mass Concrete of Raft Foundation[J].China Concrete and Cement Products,2018(1):84-88.
    普通混凝土拌合物用砂含泥量測定裝置的設計
    普通混凝土拌合物用砂含泥量測定裝置的設計
    • 付希堯
    2018年第1期
    摘要
    引用本文
    摘 要:結合建材檢測專業教學及科研實驗,設計并研制了一種便攜式普通混凝土拌合物用砂含泥量測定裝置?;炷涟韬衔镉蒙昂嗔繙y定裝置通過采用PLC控制器、液位和濁度自動檢測裝置解決了常規試驗操作復雜、測試設備不便于攜帶、試驗數據重復性較差等問題,減少了人為操作誤差的影響,也提高了測試數據的準確性。 Abstract: Combined with the construction materials testing professional experiment teaching and scientific research, aegular concrete sand measuring device for a portable clay content was designed and developed, which can reduce the effect of human error and improve the accuracy of test data by adopting the PLC controller, liquid level and turbidity automatic detection devices. In addition, the test device has advantages in operation, portability and stability.
    付希堯.普通混凝土拌合物用砂含泥量測定裝置的設計[J].混凝土與水泥制品,2018(1):80-83. FU X R.Designing of the Measuring Device for Clay Content of Ordinary Concrete[J].China Concrete and Cement Products,2018(1):80-83.
    提高徑向擠壓制管工藝鋼筋骨架質量的措施研究
    提高徑向擠壓制管工藝鋼筋骨架質量的措施研究
    • 趙瑞軍
    2018年第1期
    摘要
    引用本文
    摘 要:為了滿足徑向擠壓制管工藝對鋼筋骨架的特殊質量要求,分別從提高滾焊機生產效率、鋼筋骨架焊接質量、骨架尾端垂直度控制、縱向筋扭曲控制、保護層厚度控制、承口斜坡段角度控制出發,研究了提高鋼筋骨架質量的措施,以期提高徑向擠壓制管工藝制管質量。 Abstract: In order to meet the special quality of radial extrusion pipe process on reinforcement skeleton, the production efficiency, welding quality of rolling machine, welding quality, steel skeleton skeleton end longitudinal rib distortion verticality, concrete protection layer thickness, socket crossing angle control were studied to improve steel skeleton quality measures to improve the pipe quality of radial extrusion process.
    趙瑞軍.提高徑向擠壓制管工藝鋼筋骨架質量的措施研究[J].混凝土與水泥制品,2018(1):77-79. ZHAO R J.Measure Study on Quality of Reinforcement Skeleton for Improving the Radial Extrusion Pipe Process[J].China Concrete and Cement Products,2018(1):77-79.
    二次預應力組合梁框架體系研究
    二次預應力組合梁框架體系研究
    • 樓 卓
    2018年第1期
    摘要
    引用本文
    摘 要:基于二次預應力梁的特點,將二次預應力組合梁引入民用建筑的大跨度框架體系中??偨Y了二次預應力組合梁框架的設計要點,提出了二次預應力組合梁框架的構造要點和施工措施,同時進行了二次預應力組合梁和普通后張法預應力梁對比算例分析。最后得出二次預應力組合梁框架體系具有很大應用前景。 Abstract: Based on the characteristics of the twice prestressed beams, the twice prestressed composite beams was introduced into a large span frame system of civil buildings. The key points for the design of frame beam of twice prestressed composite beam frame system was summarized. The key points and construction measures of twice prestressed beam frame construction were proposed, and the examples between the twice prestressed concrete composite beam and the ordinary prestressed concrete beam were analyzed. In addition, it was concluded that the twice prestressed composite beam frame system has great application prospects.
    樓卓.二次預應力組合梁框架體系研究[J].混凝土與水泥制品,2018(1):73-76+83. LOU Z.Research on Twice Prestressed Composite Beam Frame System[J].China Concrete and Cement Products,2018(1):73-76+83.
    HRB500鋼筋輕骨料混凝土梁端部局部受壓性能試驗研究
    HRB500鋼筋輕骨料混凝土梁端部局部受壓性能試驗研究
    • 肖志敏1,2,邵永健1,2,朱愛萍3,勞裕華1,2,張程遠1,2
    2018年第1期
    摘要
    引用本文
    摘 要:為研究HRB500鋼筋輕骨料混凝土梁端部的局部受壓性能,進行了25個試件的試驗,設計參數有輕骨料混凝土強度等級、Ab/Al、Acor/Al等。通過試驗,獲得了試件的破壞形態與破壞特征、試件的荷載-位移曲線等試驗結果。試驗結果表明:在本文試驗參數范圍內,試件的破壞形態均為劈裂破壞;配置鋼筋骨架對局壓承載力有一定的提高作用,但作用有限;輕骨料混凝土強度等級與Acor/Al越高,Ab/Al越小,局壓承載力越高。通過分析,得到了HRB500鋼筋輕骨料混凝土梁端部局部受壓承載力的計算公式,計算值與試驗值吻合良好。 Abstract: In order to make understanding of the local compression bearing capacity oflightweight aggregate concrete with HRB500 reinforcement experiments on strength of lightweight aggregate concrete, Ab / Al,Acor / Al of the 25 lightweight aggregate concrete specimens are completed. Experiment achieve the failure pattern and characteristics of the specimens,load-displacement curves and so on are achieved. Experimental results show that lightweight aggregate concrete with HRB500 reinforcement cageincrease bearing capacity in a certain range.The local loading bearing capacityincreasewhen the strength of lightweight aggregate concreteraise,the Acor / Al raiseorthe Ab / Al reduce.Besides, considering the influence of the local compression bearing capacity of the HRB500reinforcementcage,the bearing capacity calculation formula fitting the test results is set up.
    肖志敏,邵永健,朱愛萍,等.HRB500鋼筋輕骨料混凝土梁端部局部受壓性能試驗研究[J].混凝土與水泥制品,2018(1):68-72. XIAO Z M,SHAO Y J,ZHU A P,et al.Experimental Study on Local Compression Performance of Lightweight Aggregate Concrete Beam End with HRB500 Reinforcement[J].China Concrete and Cement Products,2018(1):68-72.
    裝配式輕鋼復合保溫外墻板的制備及其在村鎮住宅中的節能效果評價
    裝配式輕鋼復合保溫外墻板的制備及其在村鎮住宅中的節能效果評價
    • 吳炎平1,朱群敏1,李敏濤2
    2018年第1期
    摘要
    引用本文
    摘 要:為提高村鎮住宅的建筑節能水平與產業化水平,研究制備了一種適用于農村低層建筑的水泥基裝配式輕鋼復合保溫外墻板,并通過試驗和數值模擬手段對該墻板的熱工性能進行了研究。結果表明,裝配式輕鋼復合保溫外墻板具有良好的建筑節能保溫效果,滿足夏熱冬冷地區居住建筑50%節能設計要求,可以對新農村的建設起到示范作用,具備一定的推廣應用價值。 Abstract: In order to improve the energy level of village buildings, a assembled light steel composite thermal insulation exterior wall panel that is suitable for rural low-rise buildings was developed. The thermal performance of the wall panel was studied by test and simulation method. The results show that the wall panel has a good building energy saving effect, which can meet 50% energy saving requirement of residential buildings in hot-summer and cold-winter zone, the wall panel plays a very good demonstration role in new rural construction, owning value of promotion and application.
    吳炎平,朱群敏,李敏濤.裝配式輕鋼復合保溫外墻板的制備及其在村鎮住宅中的節能效果評價[J].混凝土與水泥制品,2018(1):63-67. WU Y P,ZHU Q M,LI M T.Preparation of Assembled Light Steel Composite Thermal Insulation Exterior Wall Panel and Its Energy Saving Influence Evaluation in Village Construction[J].China Concrete and Cement Products,2018(1):63-67.
    聚甲醛纖維對混凝土性能的影響
    聚甲醛纖維對混凝土性能的影響
    • 張麗輝1,2,劉建忠1,2,周華新1,2,陽知乾1,2
    2018年第1期
    摘要
    引用本文
    摘 要:為了利用聚甲醛(POM)纖維的性能優勢,并促進其在纖維混凝土領域的推廣與應用,研究了POM纖維和PP纖維對混凝土新拌性能、塑性抗開裂性能、力學性能、體積穩定性和耐久性能的影響規律。結果表明,摻入POM纖維雖降低了混凝土的新拌性能、抗壓強度和干燥收縮變形,但卻有效提高了砂漿的塑性抗開裂能力、混凝土的劈裂抗拉強度和耐久性能。與PP纖維相比,當POM纖維和PP纖維的摻量相同時,摻加POM纖維的混凝土具有更為優異的新拌性能、塑性抗開裂能力、抗壓強度、劈裂抗拉強度、抗氯離子滲透性能、抗碳化能力和抗凍性能。 Abstract: In order to use the advantages of polyoxymethylene (POM) fiber and promote its application in the field of fiber reinforced concrete, the effects of POM fiber and polypropylene (PP) fiber on the workability, anti-plastic-cracking property, mechanical performance, volume stability and durability of concrete are investigated. The experimental results showed that the inclusion of POM fiber can reduce the workability, compressive strength and drying shrinkage of concrete, but can improve the anti-plastic-cracking property, split tensile strength and durability of concrete. Compared to PP fiber, POM fiber reinforced concrete has better workability, anti-plastic-cracking capacity, compressive strength, split tensile strength and resistance to chloride ion permeability, carbonation and frost when the content of POM and PP fiber are the same.
    張麗輝,劉建忠,周華新,等.聚甲醛纖維對混凝土性能的影響[J].混凝土與水泥制品,2018(1):58-62. ZHANG L H,LIU J Z,ZHOU H X,et al.Effects of Polyoxymethylene Fiber on Properties of Concrete[J].China Concrete and Cement Products,2018(1):58-62.
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