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房建材料及制品
摘 要：选择了几份典型的外墙外保温系统标准，通过对这几份标准中胶粘剂和抹面胶浆的成型和检测方法的比较，分析了现有检测技术的优劣，并结合工作实践提出了建议。Abstract:Severaltypicalexternalwallinsulationsystemsstandardsareselected.Bycomparingthemoldingandtestingmethodsoftheadhesivesandthesurfacepasteinthesestandards,theadvantagesanddisadvantagesoftheexistingtestingtechnologiesareanalyzed,andsuggestionsareputforwardinconjunctionwithworkpractices.
华治国.外墙保温系统中粘结材料的检测技术分析[J]混凝土与水泥制品,2020(6):70-72.
HUA Z G.Analysis of Detection Technology of Bonding Materials in External Wall Insulation System[J].China Concrete and Cement Products,2020(6):70-72.
周晓群1，刘 凡1，褚逸凡1，丁晓燕2
摘 要：采用低周往复荷载试验，研究了加气混凝土砌块复合墙体和秸秆板材复合墙体的破坏过程、裂缝分布特性和工作机制，对比分析了滞回曲线、骨架曲线等非线性特征参数。试验结果表明，内嵌秸秆板复合墙体具有较好的减震耗能作用。Abstract:Lowcyclereciprocatingloadtestwasusedtostudythefailureprocess,crackdistributionandworkingmechanismofaeratedconcreteblockcompositewallandstrawboardcompositewall,andthenon-linearcharacteristicparameterssuchashysteresisandskeletoncurvewereanalyzed.Theresultsshowthatthecompositewallwithembeddedstrawboardhasbetterenergyabsorptionandseismicperformance.
周晓群,刘凡,褚逸凡,等.内嵌秸秆板复合墙体破坏形态与抗震性能研究[J]混凝土与水泥制品,2020(6):65-69.
ZHOU X Q,LIU F,CHU Y F,et al.Study on Failure Form and Seismic Performance of Embedded Straw Board Composite Wall[J].China Concrete and Cement Products,2020(6):65-69.
杨奉源1,2，余志敬1
摘 要：通过一系列不同配合比泡沫混凝土的制备，系统研究了水胶比、粉煤灰及细砂掺量、表观密度、增稠剂、龄期、水泥强度等级、养护方式等常见因素对泡沫混凝土湿密度与干密度的影响。结果表明，水胶比对泡沫混凝土湿干密度比的影响最大且呈正相关，粉煤灰掺量越高，湿干密度比越大，而表观密度等级和细砂掺量则呈反相关，增稠剂、龄期、水泥强度等级、养护方式等因素对湿干密度比的影响不大。Abstract:Bypreparingaseriesofdifferentmixtureratiooffoamconcrete,theinfluenceofwater-cementratio,flyashandfinesandcontent,apparentdensitygrade,thickeningagent,admixtures,cementgrade,curingageandmethodsonthewetdensityanddrydensityoffoamconcretewereinvestigated.Theresultsshowthatthewet-drydensityratiooffoamconcreteissignificantlyeffectedbywater-cementratio,anditincreaseswiththeincreaseofwater-cementratioandflyashcontentandthereduceoffinesandandapparentdensitygrade,whilethickeningagent,admixtures,cementgrade,curingageandcuringmethodhavelittleeffectonwet-drydensityratio.
杨奉源,余志敬.泡沫混凝土湿密度与干密度关系的研究[J]混凝土与水泥制品,2020(6):61-64,69.
YANG F Y,YU Z J.Research on the Relationship Between Wet and Dry Density of Foam Concrete[J].China Concrete and Cement Products,2020(6):61-64,69.
周博伦，朱杰江
摘 要：对框架-核心筒结构体系楼盖进行了简化计算以及分析。结合中国规范，对一个10m×9m范围内的区格进行不同结构形式的布置，包括混凝土结构以及钢-混组合结构，其中钢-混组合结构包括了压型钢板、钢筋桁架楼承板与钢梁的组合；采用固定的梁系布置，对不同楼盖结构形式的梁板进行了材料成本统计，考虑施工工期的影响，通过换算成时间成本综合考察了各结构形式的优劣。Abstract:Thesimplifiedcalculationandanalysisof floorsystemofframe-tubestructuresarecarriedout,andthefloorsystemsofconcretestructureandsteel-concretecompositestructurearedesignedaccordingtotheChinesestandard,inwhichthesteel-concretecompositestructureincludesthecombinationofcompositeslabs,steel-barstrussdecksandsteelbeams.Thecolumngridsoffloorsystemsare10m×9m,whichadoptsdifferentstructuretypesandconstantarrangementofsecondarybeams.Thematerialcoststatisticsarecarriedoutforbeamsandslabsofdifferentfloorstructures,andtheeffectofconstructionperiodistakenintoaccount,andthemeritsanddemeritsofdifferentstructuraltypesoffloorsystemsarecomprehensivelyinvestigatedbyconversionintotimecost.
周博伦,朱杰江.框架-核心筒结构体系楼盖形式研究[J]混凝土与水泥制品,2020(6):57-60.
ZHOU B L,ZHU J J.Study on Floor System Optimal Selection of Frame-tube Structures[J].China Concrete and Cement Products,2020(6):57-60.
摘 要：通过单因素控制变量试验，研究了预应力筋张拉控制应力与分布情况对部分预应力混凝土叠合板底板变形与抗裂性能的影响。试验结果表明，随着张拉控制应力与预应力筋分布根数的增加，叠合板底板挠度降低，抗裂性能得到极大改善。当预应力筋张拉根数为7根时，张拉控制应力从0.4fptk递增至0.7fptk，构件挠度降低了22.1%，裂缝最大宽度降低幅度可达50.0%。Abstract:Throughsinglevariable-controlledtest,theeffectsofthetensioncontrolstressandthedistributionofprestressedtendononthedeformationandcrackresistanceofpartiallyprestressedconcretecompositeslabswerestudied.Theresultsshowthatwiththeincreaseofthetensioncontrolstressandthenumberofprestressedtendons,thedeflectionofcompositeslabcanbedecreased,meanwhileitscrackresistanceisgreatlyimproved.Whenthenumberofprestressedtendonsis7,thetensioncontrolstressprogressivelyincreasesfrom0.4fptkto0.7fptk,andthedeflectionofcomponentsaredecreasedby22.1%,andthedecreasingrangeofmaximalbreadthofcrackisabletoreach50.0%.
陈思.部分预应力混凝土叠合板底板力学性能试验研究[J]混凝土与水泥制品,2020(6):53-56.
CHEN S.Experimental Research on Mechanical Performance of Partially Prestressed Concrete Composite Slabs[J].China Concrete and Cement Products,2020(6):53-56.