文档来源为 :从网络收集整理.word 版本可编辑 .欢迎下载支持.国际会议英文演讲稿篇一：国际会议作报告英语发言稿Thank you, prof. My name is.I m from.I am very pleased to be here to join this forum. Thetopicofmypresentationispropertiesofrapidconstructionmaterialsforsoilpavementoffieldairfield. As is shown in the picture, the main partsof my research are about soil pavement.My presentation will include these four parts:First,some backgroundinformationaboutthisresearch; second, the main work we have done; third,some conclusions we have got and the last: innovationand presentation of our published papers.Why IchoosethisitemIthinkitcanbeillustrated from the following four parts. First, theexistingquantityof airfieldsisstillnot sufficientand the airfieldshave many shortcomingsespeciallyinwar time. Second, the complementary facilities, suchas highway runways are farlessthan airfields,however,have more weakness. Third, a certain amount of fieldairfieldisquitenecessaryconsideringsomeemergenciessuch as rescue and disasterrelief.Forth,1文档收集于互联网，如有不妥请联系删除.文档来源为 :从网络收集整理.word 版本可编辑 .欢迎下载支持.the field airfield can fill the void of airfield andthey can be combined to be airfield network.The meaning and aim of this research containsthreeparts.Fast,convenientand validity,fastmeansthe field airfield must be constructedasfastaspossible,convenientmeans theconstruction should need the minimum equipment, laborandmaterialsconsideringtheactualconstructioncondition, validity means the constructed airfield isabletosupportthe operationofgivenaircraftinspecifically time.Just like many other territories, the situationof the researchisthatthe Army takes advancedline.The Army declares that they can reach to anywhere onthe earth in 96 hours, the most important method forforceprojectionisthoughaircraft,thusrapidconstruction of pavement is the key problem for rapidforce transportation.The main work we have done can be summarized asfourparts,materialschoosing,scheme making,mechanicalpropertiesresearchandwater-stableproperties research.2文档收集于互联网，如有不妥请联系删除.文档来源为 :从网络收集整理.word 版本可编辑 .欢迎下载支持.We choose two kinds of soils, which are got fromXi an, Shanxi province and Jiuquan, Gansu provinceseparately. The sand from Ba River was considerate toinvestigatetheinfluenceofsandtothepropertiesofstabilizedsoil.The chosenthreekindsof powdersarecement, lime and new-typestabilizerdeveloped by Changan University.The principlesinconsideringthefunction of 4 kings of fibers are referring differentlength, type and mixing them.Onaccountofthetime,Iwillmake abriefdescription about the experiment scheme. In summary,threepartswere proposedto distinguishtheaffectingfactors in making experiment scheme. They are powdercontrol,fiber controland otherfactors.Takingpowdercontrolforexample,thedosageofcementisrespectively6%, 8% and 10% when thesoilisstabilizedonly by cement, while the dosage of cement decrease to3%, 5% and 7% when the lime is addicted to stabilizedsoil.The followingtwo factorsarestabilizerand sand.Sixkindsofexperimentswereperformedtoinvestigatetheinfluenceofabovefactorstothemechanical properties of stabilized soil. The aim of3文档收集于互联网，如有不妥请联系删除.文档来源为 :从网络收集整理.word 版本可编辑 .欢迎下载支持.compaction test is to find the maximum dry density andoptimummoisturecontent.Theaimofcompressionstrength test is to determine the optimum dosage ofcement, lime, powder stabilizer and fiber, meanwhileevaluatingtheperformanceofstabilizedsoil.The aimofsplittingtensionstrengthtestissimilartocompression strength test, the left picture is samplestabilized by cement, while the right picture is thesample stabilizedby fiberand cement. The directsheerisanotherimportantparameteringeotechnicalengineering.Itinfluencesthefoundationbearingcapacityand many otherpropertiesespeciallyforsoilbase and base course.The leftpictureshows the courseof makingsample and therightpicture shows thetestprocess.TheCBR testandrebound modulustestarereferencedfromhighwaytestspecificationtoevaluatingthecomprehensivecapacitiesofeachstructurelevelofthepavement. For both the two tests,the left picture shows the course of making s