c30自密实混凝土配合比实验(1)

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1、结02陈伟2010010131实验四C30自密实混凝土配合比设计实验实验六混凝土力学性能及氯离子扩散系数试验实验报告学号：2012010269班号：水工22实验日期：2014.5.12实验者：辜英晗同组人：石磊、李轶博冯姜波若、田向东nthemainterminal,andthetelephoneOfficeisresponsibleforprovidingtheappropriatesizeadapterpatchpanelsandelectricalprotectionunit.(Shuttlebus)wiring

2、(IDF)setupintheworkshoponthesecondfloorofthebuilding,locatedintheDistrictofweakelectricalcabinets(well).EngineroomplacedinsidetheCabinet,IDFplacedastandard40Ucabinetsforinstallationofnetworkandwiringdevices,managementcomputerandtelephoneinformation.Cabinetdistri

3、butionframearemadeofSuperfiveRJ45patchpanelhorizontaltwistedpairconnections.Computerinformationmanagement,adminareausingthejumpers,whichusesprivateRJ45-RJ45softjumpersfornetworkdeviceswithjumpershoppingbetweenallswitches,changes,expansionandmaintenanceweredonequ

4、icklyinthewiringcloset.TwistedlengthCentreroomislocatedonthesecondfloor,outwardradiationofeachline(exceptsomepointsmayexceed)doesnotexceed100metresinlength,allinformationforthevariousfloorsallrooms(distributionCabinet)unifiedmanagement.Districtworkshopbuildingdi

5、stributionlines(IDF)viafiberopticcablesconnectedtothetotalroomcabinets.Fiberlengthwere:workshopstwoIDF:totalmorethan1200squaremeters,doublethenumberofstrandscanbecalculatedbymultiplyingtheaveragelengthofthenumberofinformationpointsare.Averagelevelofeachlengthofc

6、able:L=[(S1+S2)/2]+L1+L2l:averagelengthofcable;L1:MDFcableallowance;L2:otherallowancesS1:minimumhorizontalcablelength;S2:maximumhorizontallengthofcable;Officebuildingofinformation:aminimumof26meters,thelongestwas92meters,L=[(28+92)/2]+2.5+1=62.5m;Totallengthof62

7、.5mx792=49500-meterineachbox(KFT)by300meterspercarton;Thetwisted-paircableboxyouwant=49500÷300=165(KFT);lossesnotincluded,eachabout15meters.Metallineslot,andmetallinetubeof结02陈伟2010010131一、实验目的1、掌握混凝土配合比设计的基本方法。2、学习如何测定混凝土拌和物的基本性能。3、为混凝土力学性能实验准备试件。4、学习混凝土主要力学性能的

8、测试方法。5、学习混凝土氯离子扩散系数的试验方法。二、实验相关知识和原理㈠自密实混凝土：1.简介：自密实混凝土(Self—CompactingConcrete，简称SCC)可以定义为：混凝土能够保持不离析和均匀性。不需要外加振动完全依靠重力作用充满模板每一个角落、达到充分密实和获得最佳的性能。在20世纪80年代早期，挪威建造混凝土