摘 要：结合实际生产，总结了混凝土排水管钢筋骨架生产过程中容易遇到的问题，并提出了相应的解决措施，以期为制管企业提供参考，提高制管质量。 Abstract: Combined with actual production, the problems that are easily encountered in the production process of concrete drainage pipe reinforcement skeleton are summarized, and corresponding solutions are put forward, so as to provide reference for management enterprises and improve the pipe quality.

赵瑞军,王春蓉.混凝土排水管钢筋骨架生产中的若干问题及解决方案探讨[J].混凝土与水泥制品,2018(4):33-37. ZHAO R J,WANG C R.Discussion on Some Problems and Solution of Steel Frame for Concrete Drainage Pipe in Production[J].China Concrete and Cement Products,2018(4):33-37.

摘  要：为制备干硬性再生混凝土，设计了专用加压成型装置和成型工艺，利用正交试验方法设计配合比，对混凝土不同龄期的抗压强度进行测试。试验结果表明，制备的干硬性再生混凝土试件成型效果理想，且前期强度增长较快，当水胶比取0.3、再生粗骨料取代率取50%、砂率取45%、成型压力取10kPa时，试件的力学性能较优。Abstract:Forthepreparationofstiffrecycledconcrete,aspecialpressureformingdeviceandpreparationprocessisdesigned.Themethodoforthogonalisusedtodesignmixes.Thecompressivestrengthofspecimenwithdifferentagesistested.Theresultsshowthattheformingeffectoftestblocksisgood,andtheearlystrengthgrowsfaster,whenthewater-cementratiois0.3,thereplacementofrecycledcoarseaggregateis50%,thesandrateis45%,themoldingpressureis10kPa,themechanicalpropertiesofstiffrecycledconcretearebetter.

许飞,王兵,宋鲁光.干硬性再生混凝土的制备及力学性能试验研究[J].混凝土与水泥制品,2018(4):102-104. XU F,WANG B,SONG L G.Research on Preparation and Mechanical Properties of Stiff Recycled Concrete[J].China Concrete and Cement Products,2018(4):102-104.

摘  要：为了缓解建筑垃圾对生态环境的不利影响，提高建筑垃圾的资源化利用率，使用再生骨料部分替代天然骨料制备了再生混凝土。通过对比分析再生混凝土中天然骨料和再生骨料的界面性能，并研究了骨料的掺配比例对再生混凝土抗压强度、劈裂强度以及变形性能的影响，在尽可能提高再生骨料利用率的基础上，确定了再生混凝土中再生骨料的最优掺配比例。Abstract:Inordertoalleviatetheadverseeffectsofconstructionwasteontheecologicalenvironmentandimprovetheresourceutilizationrateofconstructionwaste,recycledconcretewaspreparedbyusingrecycledaggregateinsteadofnaturalaggregate.Theinterfacialpropertiesofnaturalaggregateandrecycledaggregateofrecycledconcretewascompared,andtheeffectoftheaggregateblendingratiooncompressivestrength,splittingstrengthanddeformationperformanceofrecycledconcreteisstudred.Onthebasisofincreasingtheutilizationratioofrecycledaggregateasmuchaspossible,theoptimumblendingratiooftherecycledaggregateofconcretewasdetermined.

张玉栋,张立群,郭强,等.基于骨料掺配的再生混凝土界面和力学性能研究[J].混凝土与水泥制品,2018(4):99-101. ZHANG Y D,ZHANG L Q,GUO Q ,et al.Study on Interface and Mechanical Performance of Recycled Concrete Based Adding Aggregate[J].China Concrete and Cement Products,2018(4):99-101.

摘 要：为研究废玻璃粉混凝土的抗碳化性能，将中位粒径为9.45μm、16.38μm和25.15μm的三种废玻璃粉分别等质量取代10%、20%和30%的水泥制成混凝土试块，在标准条件下养护3d、28d、56d后，测得各龄期下各试块的抗压强度以及加速碳化至3d、7d、14d、28d和56d的碳化值，并通过压汞法和扫描电镜（SEM）测得试块内部孔径分布和微观形貌。结果表明，标养3d时，中位径16.38μm的废玻璃粉更有利对大孔细化，混凝土早期密实度高，抗碳化能力更佳；标养56d后，中位径为9.45μm废玻璃粉掺量≤10%时，试块强度和碳化深度与基准组相当。Abstract:Inordertostudythecarbonationresistanceofwasteglasspowderconcrete,theconcretespecimenswith10%,20%and30%cementwerereplacedbythreekindsofwasteglasspowderswiththemedianparticlesizesof9.45μm,16.38μmand25.15μm,respectively,andofterthestandardcuringfor3d,28dand56d,Thecompressivestrengthandthe3d,7d,14d,28dand56dofcarbonizationvalueofthesamplesundervariouscuringconditionsweremeasured.Theporesizedistributionandmicrostructureweremeasuredbymercuryintrusionandscanningelectronmicroscopy(SEM).Theresultsshowsthatwhenthestandardspecimencuringis3d,themediandiameterof16.38μmwasteglasspowderismoreconducivetomacroporerefining,concreteearlyhigh-density,betteranti-carbonationability.After56dofstandardicuring,whenthedosageofwasteglasswiththemediandiameterof9.45μmislessthanorequalto10%,thestrengthandcarbonationdepthofthespecimenareequivalenttothereferencegroup,whichshowsthatinthewasteglasspowderconcrete,theappropriatecontentofwasteglasspowder,particlesizeandcuringagecanimprovethecompressivestrengthandcarbonationresistance.

邓攀,陆启宏,柯国军,等.不同粒径及掺量废玻璃粉对混凝土抗碳化性能的影响[J].混凝土与水泥制品,2018(4):95-98. DENG P,LU Q H,KE G J,et al.The influence of Different Particle Size and Dosage of Waste Glass Powder on Anti-carbonization Performance of Concrete[J].China Concrete and Cement Products,2018(4):95-98.

摘 要：套筒灌浆料的应用性能对装配式建筑节点连接质量影响重大，但低温限制了套筒灌浆料性能的发挥。通过研究拌合水温度、环境温度对套筒灌浆料力学性能、接头试件抗拉性能以及施工应用性能的作用与影响，探索出了简便可行的套筒灌浆料冬期施工工艺。Abstract:Theapplicationperformanceofcementitiousgroutforcouplerofrebarsplicinghasagreatinfluenceonthequalityoftheconnectionoftheassembledbuilding.Butlowtemperaturehaslimitedtheperformanceexertingofcementitiousgroutforcouplerofrebarsplicing.Thesimpleandfeasibleconstructiontechnologyforcementitiousgroutforcouplerofrebarsplicinginwinterperiodisstudiedthroughresearchingtheeffectandinfluenceofmixingwatertemperatureandambienttemperatureonmechanicalproperties,tensilepropertiesofjointspecimensandconstructionapplicationpropertiesofthecementitiousgroutforcouplerofrebarsplicing.

杨国刚,侯维红,吴文选,等.低温条件下套筒灌浆料应用性能的研究[J].混凝土与水泥制品,2018(4):90-94. YANG G G,HOU W H,WU W X,et al.Research on Application Properties of Cementitious Grout for Coupler of Rebar Splicing under Low Temperature[J].China Concrete and Cement Products,2018(4):90-94.

摘  要：铝合金模板是我国近年来新出现的一种新型模板系统，当对铝合金模板成型混凝土构件抗压强度进行推定时，采用回弹法这种非破损检测技术检测结果与混凝土实体强度存在较大的偏差，且这种偏差存在系统性。经过对混凝土成型过程的分析研究发现，引起系统性偏差的主要因素是铝合金模板成型的混凝土结构构件表层与构件内部在强度、空间结构等方面存在明显差异。Abstract:AluminumalloytemplateisanewtemplatesysteminChinainrecentyears,whenthealuminumalloytemplatecastconcretecompressivestrengthisassumedbyreboundmethod,thereisalargedeviationbetweentheresultsofreboundmethodandconcretesolidstrength,andthisdeviationissystematic.Throughtheanalysisandresearchoftheconcreteformingprocess,themaininfluencingfactorsthatcausesystematicdeviationaretheobviousdifferencesinstrengthandspatialstructureoftheconcretecomponentsbetweenthesurfaceandtheinteriorofcomponentsthatmoldedbythealuminumalloyformwork.

蒋孙春.回弹法检测铝合金模板成型混凝土构件抗压强度的系统性影响因素研究[J].混凝土与水泥制品,2018(4):85-89. JIANG S C.Study of Systematic Effecting Factors on Compressive Strength of Aluminum Alloy Template Cast Concrete Component Tested by Rebound Method[J].China Concrete and Cement Products,2018(4):85-89.