简介:沥青玛蹄脂碎石路面近年来较为广泛地用于高速公路的新建及大修中。根据工程的使用情况简单地介绍了沥青玛蹄脂碎石(SMA)路面混合料配合比设计及技术要求。
简介:ShapeMemoryAlloy(SMA)opticallyactivatedisthekeylechnologyofopticalSMAactivator,AccordingtotheshapememorymechanismofSMA,researchesaredoneontheactivatingresponsetimeandlightwavelengthofactivatingsourceelcofSMAopticallyactivatedtoapproachtheparameterswelectionofopticalactivation,SMAhastheoptimumefficiecyintherageof13secondsto27secondswhenSMAisilluminatedcontinuslybywavelengthof675nm;ThepoweroflightwavehasaloweffectonSMA;thelongertheactivatingwavelenth,thequickertheresponsetimeofSMAactivated,Iftheproperactivatingtimeandactivatingwavelength,areadopted,andthestructuredeformationofcompositematerialofSMAimbeddedmaybeactielycontrolled,andidealeffectwillbegotten,TheresarchprovidesanevdenceforthedesignofopticalSMAactivatorandisofgreatsignificncetoitsapplication,Theresarchonsmartstructurehasawideapplicationprospect.