摘 要：污水厂污泥焚烧是一种有效的减量化处理方式，焚烧产生的污泥焚烧灰渣通常被运到填埋场进行填埋处置。根据污泥灰渣的物理特性，对其进行了急性毒性分析和水化活性分析，并经过无害化处理的污泥焚烧灰渣寻找到了使其资源化利用的新方法，即固化后制成的路基材料。用该法制成的路基材料抗压强度满足规定的技术要求，同时，重金属浸出毒性也满足国家固体废物排放标准的要求。 Abstract： Incineration of sewage sludge is an effective reduction treatment, sewage sludge incineration ash is usually transported for landfill disposal. According to the physical characteristics of the sewage sludge incineration ash, acute toxicity analysis and hydration activity analysis are carried out, and new methods of sewage sludge incineration ash are found out for resource utilization with harmless treatment, which is making roadbed material after solidification. The compressive strength of this roadbed material can meet the technical requirements, while heavy metals leaching toxicity of solid wastes can meet the requirements of national emission standards for solid wastes.

摘 要：以南宁市西南商都工程施工为例，介绍了不同部位混凝土的不同施工技术，阐述了各部位混凝土的质量控制要点。 Abstract：Taking one Nanning Southwest city project as an example, the different construction technologies of different concrete sections are introduced, and the key points of quality control of different concrete sections are described.

摘  要：在试验基础上，对PVA纤维补偿收缩混凝土的膨胀性能进行了研究，并结合实际工程，采用配置暗梁钢筋，加强施工质量监控及现场温控等技术措施，成功进行了148m超长混凝土工业水池的无缝施工。Abstract:Basedontheexperiment,theexpansionperformanceofPVAfiber-compensatingshrinkageconcreteisstudied.Combiningthepracticalprojects,ｗｉｔｈbeam-reinforcedconfiguration,thetechnologymeasuressuchasconstructionqualitymonitoringandfieldtemperaturecontrollingareenhanced.Non-jointconstructionissuccessfullycarriedoutforsuper-longconcreteindustrywaterpondwith148meters.

摘 要：试验研究了不同施工工艺对道面混凝土表面耐磨性的影响。结果表明，任何一种施工工艺处理后的道面混凝土耐磨性都会降低，降低幅度随表面纹理构造深度的增大而增大，拉毛道面的磨槽深度低于刻槽道面，而刻槽道面的抗滑能力衰减率明显低于拉毛道面。因此，在混凝土道面使用比较频繁且防滑能力要求较高的机场，表面抗滑处理以刻槽道面相对较好。 Abstract： The effects of different construction technologies on the abrasion resistance of pavement concrete surface are studied by experiments. The results indicate that the abrasion resistance of airport pavement concrete will be reduced after any construction technology treatments, and the decreased degree is increased with the surface texture depth increasing. The abrasion of napped pavement is smaller than the snicked pavement, and the anti-slide attenuation rate of snicked pavement is obviously slower than the one of napped pavement. Therefore, the snicked pavement will be better for anti-slide which is in the frequent usage and high anti-slide requirement airport.

摘  要：介绍了双筋并绕全自动滚焊机的设计思路、创新点和技术特点。指出，双筋并绕有效解决了14～16mm钢筋直径钢筋骨架难以成型的问题。同时，由于电控系统采用三相硅整流焊接技术，使该滚焊机还具有焊接压力小、热能传递快、焊接时间短等特点。Abstract：Thedesignideas,innovationpointsandtechnicalfeaturesoffull-automaticrollingaroundwelderswithdoublemuscleparallelwindingareintroduced.Anditpointsoutthattheschemeofdoublemuscleparallelwindingcaneffectivelyresolvetheproblemofframeworkofsteelreinforcementwith14～16mmbardiameterhardtomould.Meanwhile,becauseofusingthethree-phasesiliconrectifierweldingtechnology,thefull-automaticrollingaroundwelderhasmanyadvantagessuchaslowerweldingstress,fasterheattransferspeed,shorterweldingtime.

摘 要：介绍了预应力简支T形梁混凝土施工中常见的几种质量缺陷，结合工程实际，分析了产生缺陷的原因；提出了相应的预防措施和处理措施。针对预应力混凝土简支T形梁危害较大的质量缺陷—孔洞做了重点论述，并结合试验与现场施工验证，将补偿收缩混凝土应用于混凝土孔洞修补中，结果表明，补偿收缩混凝土用于修补混凝土孔洞是可行的。 Abstract: The common quality defects in the concrete construction of prestressed simple branch T-shape beams are introduced. Combining with project practices, the reasons for the defects are analyzed and the relevant preventive and treatment measures are proposed. The more harmful quality defect—holes in the prestressed concrete simple branch T-shape beams is significantly discussed, and the shrinkage-compensating concrete is applied in the concrete holes repairing combined with the test and field construction verification. The results show that the shrinkage-compensating concrete applied in the concrete holes repairing is feasible.