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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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    第八期

    堿激發磷石膏復合膠凝材料力學性能研究
    堿激發磷石膏復合膠凝材料力學性能研究
    • 麻鵬飛,楊 文,程寶軍,亢澤千,康升榮
    2021年第8期
    摘要
    引用本文
    麻鵬飛,楊文,程寶軍,亢澤千,康升榮.堿激發磷石膏復合膠凝材料力學性能研究[J].混凝土與水泥制品,2021(8):83-87. MA P F,YANG W,CHENG B J,et al.Study on Mechanical Properties of Alkali Activated Phosphogypsum Composite Cementitious Materials[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(8):83-87.
    磚粉-石灰石粉混凝土的制備及性能研究
    磚粉-石灰石粉混凝土的制備及性能研究
    • 明 陽1,2,3,4,李 玲1,2,3,4,李 青1,2,3,4,胡 成1,2,3,4,陳 平1,2,3,4,王 磊1,2,3,4
    2021年第8期
    摘要
    引用本文
    摘 ? 要:通過正交試驗研究了磚粉摻量、石灰石粉摻量、水膠比、砂率對混凝土工作性、力學性能和氯離子滲透性的影響,并確定了最優配合比。結果表明:采用25%的磚粉和10%的石灰石粉等質量替代35%的水泥,可以配制出性能優良的C35磚粉-石灰石粉混凝土,且與基準混凝土相比,其體積穩定性和氯離子滲透性得到明顯改善。 Abstract: By using the orthogonal test, the influence of brick powder content, limestone powder content, water-binder ratio and sand ratio on the fluidity, mechanical properties and chloride ion permeability of the concrete with brick power and limestone powder were studied, and the optimum mix proportion was determined. The results show that C35 brick-limestone powder concrete with excellent performance can be prepared by using 25% brick powder and 10% limestone powder instead of 35% cement, and compared with the reference concrete, its volume stability and chloride ion permeability ?are improved obviously.
    明陽,李玲,李青,等.磚粉-石灰石粉混凝土的制備及性能研究[J].混凝土與水泥制品,2021(8):88-91. MING Y,LI L,LI Q,et al.Study on the Preparation and Performance of Concrete with Brick Powder and Limestone Powder[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(8):88-91.
    淺談綠色環保型預拌混凝土工廠的建設
    淺談綠色環保型預拌混凝土工廠的建設
    • 陳小和
    2021年第8期
    摘要
    引用本文
    摘 ? 要:以公司的預拌混凝土工廠綠色轉型升級項目為例,結合預拌混凝土綠色生產及管理的相關規范、規章要求,分別從項目的總體規劃設計、主要工藝方案設計及設備選型、環境保護設施的設計建設及環??刂频木唧w措施等方面,介紹了預拌混凝土工廠向綠色、環保產業化轉型升級的主要措施和實踐。 Abstract: Taking the green transformation and upgrading projects of some ready mixed concrete plants of the company as an example, combined with the relevant specifications and regulations of green production and management of ready mixed concrete, the main measures and practices for the green transformation and upgrading of ready mixed concrete plants from the aspects of overall planning and design of the project, main process scheme design and equipment selection, design and construction of environmental protection facilities and specific measures of environmental protection control are introduced.
    陳小和.淺談綠色環保型預拌混凝土工廠的建設[J].混凝土與水泥制品,2021(8):92-95. CHEN X H.Discussion on the Construction of Green Environmental Ready Mixed Concrete Plants[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(8):92-95.
    新型EPS模塊澆筑墻體受壓性能試驗研究
    新型EPS模塊澆筑墻體受壓性能試驗研究
    • 宋珊珊,李倩茹,徐 曉,郝文秀,于萬里
    2021年第8期
    摘要
    引用本文
    摘 ? 要:通過對4片新型EPS模塊澆筑墻體進行軸心和偏心受壓試驗,研究了試件的破壞形態、極限承載力和變形規律。在試驗基礎上,利用ABAQUS軟件建立了新型EPS模塊澆筑墻體有限元模型,并對試件的極限承載力進行了對比分析。結果表明:新型EPS模塊內存在連接橋,墻體的破壞首先出現在連接橋處,最終破壞形式為受壓區混凝土破壞;隨著偏心距逐漸增大,墻體的極限承載力明顯降低,應變與普通混凝土墻體的變化相似;有限元分析結果與試驗結果吻合良好,可為工程設計提供分析方法和理論依據。 Abstract: Four new EPS module cast-in-place walls were tested under axial compression and eccentric compression, ?and the failure mode, ultimate bearing capacity and deformation law of the specimens were studied. On the basis of the test, the finite element model of new EPS cast-in-place wall was established by using ABAQUS software, and the ultimate bearing capacity of the specimen was compared and analyzed. The results show that there is a connecting bridge in the new EPS module, and the wall failure first appears at the connecting bridge, and the final failure mode is concrete failure in the compression zone. With the increase of the eccentricity, the ultimate bearing capacity of the wall decreases obviously, and the change of the concrete strain is similar to that of the ordinary concrete wall. The results of finite element analysis are in good agreement with the test results, which can provide analysis method and theoretical basis for engineering design.
    宋珊珊,李倩茹,徐曉,等.新型EPS模塊澆筑墻體受壓性能試驗研究[J].混凝土與水泥制品,2021(8):64-68. SONG S?S,LI Q?R,XU X,et al.Experimental Study on Compression Performance of New EPS Module Walls[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(8):64-68.
    全FRP筋增強混凝土梁抗剪性能綜述
    全FRP筋增強混凝土梁抗剪性能綜述
    • 呂家美1,邸 博2,何立杰2,黃柳超2
    2021年第8期
    摘要
    引用本文
    摘 ? 要:鋼筋銹蝕導致混凝土結構性能下降,使用壽命縮短。纖維增強復合(FRP)筋具有高抗拉強度和優異的耐腐蝕性能,在部分結構中可代替鋼筋,以提升混凝土結構的耐久性。將FRP筋應用于混凝土結構中是未來發展的重要方向,但目前關于其抗剪性能及抗剪機理尚未闡述清楚。本文對國內外關于FRP筋混凝土梁的抗剪性能研究進行了總結與分析。 Abstract: The corrosion of steel bar leads to the deterioration of the performance and the shortening of the service life of concrete structures. Fiber reinforced polymer(FRP) bars have high tensile strength and excellent corrosion resistance, and can replace steel bars in some structures to improve the durability of concrete structures. The application of FRP bars in concrete structures is an important development direction in the future. However, the shear behavior and shear mechanism of FRP reinforced concrete beams have not been explained clearly. Therefore, the research on shear behavior of FRP reinforced concrete beams at home and abroad is summarized and analyzed.
    呂家美,邸博,何立杰,等.全FRP筋增強混凝土梁抗剪性能綜述[J].混凝土與水泥制品,2021(8):69-73. LYU J M,DI B,HE L J,et al.Review on Shear Behavior of Concrete Beams Strengthened with FRP Bars and Stirrups[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(8):69-73.
    基于LS-DYNA的鋼筋混凝土梁落錘沖擊響應分析
    基于LS-DYNA的鋼筋混凝土梁落錘沖擊響應分析
    • 廖俊智,何 勇
    2021年第8期
    摘要
    引用本文
    摘 ? 要:基于LS-DYNA顯示動力分析程序,對3種不同配筋梁的沖擊試驗進行了數值模擬,通過參數分析探究了不同落錘高度下系統總能和各部件能量在整個沖擊過程中的變化規律以及不同時間下剪應力沿梁長的分布情況。結果表明:隨著落錘高度增加,落錘動能與梁體內能交換會出現滯后現象,落錘高度對梁體內各部件的耗能比例沒有顯著影響,沖擊過程中慣性效應不明顯;通過分析梁體內的剪應力分布情況,揭示了梁體在沖擊過程中剪應力的傳播規律和落錘高度對梁體抗剪性能的影響。 Abstract: The impact tests of three different reinforced beams were simulated based on the LS-DYNA explicit dynamic analysis program, and the change law of the total energy of the system and the energy of each component during the entire impact process under different drop weight heights and the distribution of shear stress along the beam length at different times were studied through parameter analysis. The results show that with the increase of the drop weight height, the kinetic energy of the falling weight and the energy in the beam body show a hysteresis phenomenon, and the drop weight height has no significant effect on the energy consumption ratio of various components in the beam body, and the inertial effect is not obvious during the impact process. The effects of the shear stress propagation law and the drop weight height on the shear resistance of the beam during the impact process are revealed by analyzing the distribution of shear stress.
    廖俊智,何勇.基于LS-DYNA的鋼筋混凝土梁落錘沖擊響應分析全FRP筋增強混凝土梁抗剪性能綜述[J].混凝土與水泥制品,2021(8):74-78. LIAO J Z,HE Y.Analysis of Impact Response of Reinforced Concrete Beams Based on LS-DYNA[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(8):74-78.
    耳板式空腹桁架免支撐疊合板抗彎性能試驗研究
    耳板式空腹桁架免支撐疊合板抗彎性能試驗研究
    • 張 旭1,陳 強1,龐祖杰2,孔 瀟1,梁 藝2,王少杰1,胡兆文2
    2021年第8期
    摘要
    引用本文
    摘 ? 要:通過標準砝碼重物加載方法,研究了耳板式空腹桁架免支撐疊合板未澆筑后澆混凝土層、澆筑后澆混凝土層之后且上部鋼管未拆除和拆除上部鋼管三個施工受力階段的抗彎性能,明晰了疊合板在各施工受力階段的工作機制與設計計算方法。結果表明:耳板式空腹桁架免支撐疊合板在施工受力各階段均具有良好的抵抗開裂與變形的能力,上部鋼管、后澆混凝土層均可顯著提高混凝土疊合底板的抗彎剛度。研究成果可為減少或免除普通混凝土疊合底板豎向支撐的使用,提高其抗裂性能提供有效路徑。 Abstract: Through the loading method of standard weights, the flexural performance of the ear plate vierendeel truss composite slab without support in three construction stress stages of the post-cast concrete layer without pouring, the post-cast concrete layer after pouring and the upper steel tube without removing and the upper steel tube is removed were studied, and the working mechanism and design calculation method of the composite slab in each construction stress stage were clarified. The results show that the ear plate vierendeel truss composite slabs without support have good resistance to cracking and deformation at all construction stages, both the upper steel tube and post-cast concrete layer can significantly improve the flexural stiffness of concrete composite slabs. The research results can provide one of the effective ways for reducing or eliminating the use of vertical bracing of common concrete composite slab and improve its crack resistance.
    張旭,陳強,龐祖杰,等.耳板式空腹桁架免支撐疊合板抗彎性能試驗研究[J].混凝土與水泥制品,2021(8):79-82,95. ZHANG X,CHEN Q,PANG Z J,et al.Experimental Study on Flexural Performance of Ear Plate Vierendeel Truss Composite Slab Without Support[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(8):79-82,95.
    PVA纖維分散性及纖維混凝土彎曲韌性試驗研究
    PVA纖維分散性及纖維混凝土彎曲韌性試驗研究
    • 鄧宗才1,趙連志2,丁建明1,賀少鋒1
    2021年第8期
    摘要
    引用本文
    摘 ? 要:提出了一種新型纖維混凝土拌和工序和評價纖維分散性的簡易方法,并研究了不同摻量PVA纖維對混凝土力學性能和彎曲韌性的影響。結果表明:新型拌合工序可以有效降低對纖維的損傷,有助于纖維在混凝土中均勻分散;當纖維摻量為4.5 kg/m3和7.5 kg/m3時,纖維分散性較好,而當纖維摻量為10.5 kg/m3時,纖維分散性欠佳;隨著PVA纖維摻量的增加,混凝土的抗壓、抗拉強度先增后減,彎拉強度和韌性耗能能力逐漸增強。 Abstract: A new mixing process of the fiber-reinforced concrete and a simple method for evaluating fiber dispersion were put forward, and the effects of different contents of PVA fiber on the mechanical properties and flexural toughness of concrete were studied. The results show that the new mixing method can effectively reduce the damage to the fiber and help the fiber disperse evenly in the concrete. When the fiber content is 4.5 kg/m3 and 7.5 kg/m3, the fiber dispersion is better, but the fiber dispersion is unsatisfactory when the fiber content is 10.5 kg/m3. With the increase of PVA fiber content, the compressive strength and tensile strength increase first and then decrease, and the flexural tensile strength and the toughness energy dissipation capacity gradually increase.
    鄧宗才,趙連志,丁建明,等.PVA纖維分散性及纖維混凝土彎曲韌性試驗研究[J].混凝土與水泥制品,2021(8):49-53. DENG Z C,ZHAO L Z,DING J M,et al.Experimental Study on PVA Fiber Dispersion and Bending Toughness of Fiber Reinforced Concrete[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(8):49-53.
    復摻纖維和?;⒅閷駸岘h境下混凝土性能的影響
    復摻纖維和?;⒅閷駸岘h境下混凝土性能的影響
    • 呂家棟1,趙立財1,2
    2021年第8期
    摘要
    引用本文
    摘 ? 要:研究了復摻鋼纖維、聚丙烯纖維和?;⒅閷炷量箟盒阅艿挠绊?,通過微觀定量方法描述了混凝土孔隙結構與抗壓性能之間的關系,結合聲發射技術分析了濕熱環境下混凝土的壓縮破壞特征。結果表明:復摻鋼纖維、聚丙烯纖維和?;⒅榛炷猎诟骷墱囟认碌目箟簭姸染罡?,且隨溫度上升的強度損失率最低;復摻鋼纖維、聚丙烯纖維和?;⒅榛炷恋目紫堵屎涂紫斗中尉S數與抗壓強度有良好的非線性關系;復摻鋼纖維、聚丙烯纖維和?;⒅榭墒够炷恋钠茐男问綇囊詮埨茐臑橹鬓D變為以剪切破壞為主。 Abstract: The effects of steel fiber, polypropylene fiber and vitrified beads on the compressive performance of concrete were studied, and the relationship between pore structure and compressive performance of concrete was described by microscopic quantitative method, and the compression failure characteristics of concrete under hot-humid environment were studied. The results show that the compressive strength of the concrete mixed with steel fiber, polypropylene fiber and vitrified beads is the highest at all temperatures, and the strength loss rate with the increase of temperature is the lowest. The porosity and fractal dimension of the concrete mixed with steel fiber, polypropylene fiber and vitrified beads have good nonlinear relationship with compressive strength. The addition of steel fiber, polypropylene fiber and vitrified beads can change the concrete failure mode from tensile failure to shear failure.
    呂家棟,趙立財.復摻纖維和?;⒅閷駸岘h境下混凝土性能的影響[J].混凝土與水泥制品,2021(8):54-58. LYU J D,ZHAO L C.Effects of Composite Fiber and Vitrified Beads on the Performance of Concrete in Hot-humid Environment[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(8):54-58.
    基于響應面法的玄武巖纖維再生混凝土力學性能分析
    基于響應面法的玄武巖纖維再生混凝土力學性能分析
    • 陳興祥,譚 燕,童 瑤,張維維
    2021年第8期
    摘要
    引用本文
    摘 ? 要:基于Design Expert軟件,采用響應面法(RSM)分析了玄武巖纖維(BF)長度和體積摻量對再生粗骨料替代率為20%的玄武巖纖維再生混凝土(BFRAC)力學性能的影響。結果表明:BF體積摻量對BFRAC力學性能的影響程度大于BF長度;對于抗折強度、劈裂抗拉強度和抗壓強度,對應的BF最佳摻量分別為0.2%、0.1% 和0.2%。 Abstract: Based on Design Expert software, the response surface method(RSM) was used to analyze the influence of basalt fiber (BF) length and volume content on the mechanical properties of basalt fiber recycled concrete(BFRAC) with 20% replacement rate of recycled coarse aggregate. The results show that BF volume content has a greater influence on the mechanical properties of BFRAC than that of BF length. For the flexural strength, split tensile strength and compressive strength of BFRAC, the corresponding optimal BF content is 0.2%, 0.1% and 0.2%, respectively.
    陳興祥,譚燕,童瑤,等.基于響應面法的玄武巖纖維再生混凝土力學性能分析[J].混凝土與水泥制品,2021(8):59-63. CHEN X X,TAN Y,TONG Y,et al.Analysis of Mechanical Properties of Basalt Fiber Recycled Concrete Based on Response Surface Method[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(8):59-63.
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