麻鹏飞,杨文,程宝军,亢泽千,康升荣.碱激发磷石膏复合胶凝材料力学性能研究[J].混凝土与水泥制品,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.

摘   要：通过正交试验研究了砖粉掺量、石灰石粉掺量、水胶比、砂率对混凝土工作性、力学性能和氯离子渗透性的影响，并确定了最优配合比。结果表明：采用25%的砖粉和10%的石灰石粉等质量替代35%的水泥，可以配制出性能优良的C35砖粉-石灰石粉混凝土，且与基准混凝土相比，其体积稳定性和氯离子渗透性得到明显改善。 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.

明阳,李玲,李青,等.砖粉-石灰石粉混凝土的制备及性能研究[J].混凝土与水泥制品,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.

摘   要：以公司的预拌混凝土工厂绿色转型升级项目为例，结合预拌混凝土绿色生产及管理的相关规范、规章要求，分别从项目的总体规划设计、主要工艺方案设计及设备选型、环境保护设施的设计建设及环保控制的具体措施等方面，介绍了预拌混凝土工厂向绿色、环保产业化转型升级的主要措施和实践。 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.

陈小和.浅谈绿色环保型预拌混凝土工厂的建设[J].混凝土与水泥制品,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.

摘   要：通过对4片新型EPS模块浇筑墙体进行轴心和偏心受压试验，研究了试件的破坏形态、极限承载力和变形规律。在试验基础上，利用ABAQUS软件建立了新型EPS模块浇筑墙体有限元模型，并对试件的极限承载力进行了对比分析。结果表明：新型EPS模块内存在连接桥，墙体的破坏首先出现在连接桥处，最终破坏形式为受压区混凝土破坏；随着偏心距逐渐增大，墙体的极限承载力明显降低，应变与普通混凝土墙体的变化相似；有限元分析结果与试验结果吻合良好，可为工程设计提供分析方法和理论依据。 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,徐晓,等.新型EPS模块浇筑墙体受压性能试验研究[J].混凝土与水泥制品,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.

摘   要：钢筋锈蚀导致混凝土结构性能下降，使用寿命缩短。纤维增强复合（FRP）筋具有高抗拉强度和优异的耐腐蚀性能，在部分结构中可代替钢筋，以提升混凝土结构的耐久性。将FRP筋应用于混凝土结构中是未来发展的重要方向，但目前关于其抗剪性能及抗剪机理尚未阐述清楚。本文对国内外关于FRP筋混凝土梁的抗剪性能研究进行了总结与分析。 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.

吕家美,邸博,何立杰,等.全FRP筋增强混凝土梁抗剪性能综述[J].混凝土与水泥制品,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.

摘   要：基于LS-DYNA显示动力分析程序，对3种不同配筋梁的冲击试验进行了数值模拟，通过参数分析探究了不同落锤高度下系统总能和各部件能量在整个冲击过程中的变化规律以及不同时间下剪应力沿梁长的分布情况。结果表明：随着落锤高度增加，落锤动能与梁体内能交换会出现滞后现象，落锤高度对梁体内各部件的耗能比例没有显著影响，冲击过程中惯性效应不明显；通过分析梁体内的剪应力分布情况，揭示了梁体在冲击过程中剪应力的传播规律和落锤高度对梁体抗剪性能的影响。 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的钢筋混凝土梁落锤冲击响应分析全FRP筋增强混凝土梁抗剪性能综述[J].混凝土与水泥制品,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.