摘 要：根据大量水泥稳定再生骨料抗压回弹模量试验，考察了养护龄期、水泥用量、再生骨料来源及取代率对抗压回弹试验结果的影响。试验数据分析表明，再生骨料的掺加对水泥稳定混合料的抗压回弹模量有明显的增强效果，且在同等再生骨料取代率水平下，随着水泥用量和龄期的增长，抗压回弹模量不断增大，且再生骨料来源的混凝土强度越高，试验测得的抗压回弹值越大。 Abstract: Based on plenty of the compressive resilient modulus test results of cement stabilized recycled aggregate, some effect of curing periods of specimens, cement content, sources of recycled aggregate and replacement ratio on the compressive resilient modulus are studied. The study results indicate that the addition of recycled coarse aggregate can obviously enhance the compressive resilient modulus of cement stabilized macadam. Under the same condition of the replacement ratio of recycled aggregate, there is an increase tendency of compressive resilient modulus with increasing of cement content and curing period. And the higher the strength of concrete with recycled aggregate is, the larger the compressive resilient modulus got by the test is.

摘 要：通过改变铜矿渣的取代水泥量，研究了铜矿渣对混凝土力学性能的影响。结果表明：随着铜矿渣取代率的增加，混凝土的强度略有降低且脆性增加；铜矿渣混凝土的单轴受压应力-应变曲线与普通混凝土相近；采用数值计算模型和损伤模型构造铜渣混凝土的本构关系，回归曲线与实测单轴受压应力-应变曲线的吻合较好，基本能够真实地再现应力-应变曲线，可用于混凝土结构的计算分析。 Abstract: The influence of copper slag on the mechanical properties of concrete is studied by changing the cement content replaced by copper slag. The results show that with increasing the content of copper slag, the strength of concrete decreases a little while the brittleness of concrete increases; the uniaxial compressive stress-strain curve of concrete with copper slag is similar to that of ordinary concrete; the constitutive relation of concrete with copper slag is established using the numerical model and the damage model. The fitted regression curves got by numerical model approach to the measured uniaxial compressive stress-strain curves, and they can be used to analyze the constitutive relations of concrete structure.

摘 要：介绍了生态混凝土在淹水区生态护坡工程应用背景和生态混凝土制备工艺、基本性能、施工工艺以及施工过程中控制要点，并通过泰州市秋雪湖淹水区边坡护坡及绿化工程实例，具体阐述了生态混凝土的工程应用及功能。 Abstract: The application background of eco-concrete in the flooded ecological slope protection engineering as well as its preparation technology、basic performance、construction technology and the key control points during the process of construction are introduced. And according to the example of the slope protection and greening engineering in the Qiuxue Lake in Taizhou, the engineering application functions of eco-concrete are discussed.

摘 要：从混凝土配合比、振捣工艺和模板材料等几方面解释了斜坡混凝土浇筑成型面气泡数量多且不易消除的原因，结合透水模板布在某水电站斜面混凝土施工中的应用实例，分析了透水模板和普通钢模板的气泡排出机理，并依据斯托克斯定律探讨了气泡排出与倾斜模板及其混凝土参数间的相互关系，提出了消除斜坡成型混凝土表面气泡的有效施工工艺措施。 Abstract: The reasons of numerous blowholes occurred and difficult to be free from concrete inclined surface are interpreted according to several impact aspects such as concrete mixture proportion, vibration technique and formwork type. Combined with the examples of concrete cast construction of a hydropower station applied controlled permeability formwork in inclined mould, the blowholes discharged mechanisms of controlled permeability formwork and ordinary steel formwork are analyzed. And base on Stokes Law and fresh concrete parameters, the relationship of blowholes eliminate duration and the inclined formwork is discussed. In addition, the effective construction technical measures for eliminating blowholes formed on concrete inclined surface are put forword.

摘 要：介绍了即将发布的行业标准JC/T 947《先张法预应力混凝土管桩用端板》的编制背景、目的及意义，并对该标准的主要修改条款作了解释和说明。 Abstract: The compilation background, purpose and significance of industry standard JC/T 947 "End plate for pretensioning prestressed concrete piles" which will be published soon are simply introduced. And the main modified items of the standard are introduced and explained.

摘 要：通过3根钢纤维混凝土剪力墙连梁在低周反复荷载作用下的试验，研究了钢纤维体积率等对连梁破坏形态、滞回曲线、变形及耗能性能的影响，在不同钢纤维体积率的连梁试件中，试件的破坏形态不相同，构件的承载力和位移延性大小不同。结果表明，在钢筋混凝土连梁中加入足够的钢纤维，能够有效地改善连梁的变形与耗能能力。 Abstract: Through the experimental study on the three coupling beams of steel fiber concrete shearing walls under the cyclic reverse load, the influences of the volume ratio of steel fiber on the destruction modes, hysteresis curves, deformation and energy costing of the coupling beams are described. During the different volume ratio of steel fiber of the coupling beams, the destruction modes are different, and the capacity and displacement ductility of the specimens are also different. The results show that enough volume ratio of steel fiber in the coupling beams can obviously improve the deformation and energy costing of the coupling beams.