沥青的概述OverviewofAsphalt23课件.pptxVIP

沥青的概述OverviewofAsphalt

导入Introduction此路面是什么路面？用到哪些材料？Whattypeofpavementisthis?Whatmaterialsareused?沥青Asphalt碎石Gravel砂Sand石屑Stonechips矿粉Mineralpowder沥青混合料Asphaltmixture

工人正在做什么？用到哪些材料？Whatistheworkerdoing?Whatmaterialsareused?屋面防水卷材施工Constructionofroofwaterproofcoiledmaterial导入Introduction

防水卷材由哪些材料组成？Whatmaterialsdoeswaterproofcoiledmaterialconsistof?纤维胎基FibersubstrateSBS改性沥青SBSmodifiedasphalt隔离材料IsolationmaterialSBS防水卷材SBSwaterproofcoiledmaterial有什么作用Whatsthefunction导入Introduction

环氧煤沥青防腐钢管Epoxycoaltarbitumenanticorrosivesteelpipe这是什么材料？Whatkindofmaterialisthis?有什么作用Whatsthefunction导入Introduction

认识沥青UnderstandingAsphalt固体石油沥青Solidpetroleumbitumen半固体石油沥青Semi-solidpetroleumbitumen

认识沥青UnderstandingAsphalt稀释沥青Cutbackbitumen乳化沥青Emulsifiedasphalt

一、沥青的认识I.UnderstandingofAsphalt沥青是一种有机胶凝材料，由十分复杂的高分子碳氢化合物及其非金属（氧、氮、硫）的衍生物组成。在常温下以液态、固态、半固态存在，颜色呈黑色以及黑褐色。Asphaltisanorganiccementitiousmaterialcomposedofhighlycomplexhydrocarbonpolymersandtheirnon-metallicderivatives(oxygen,nitrogen,sulfur).Itexistsinliquid,solid,andsemi-solidstatesatroomtemperature,withcolorsrangingfromblacktodarkbrown.

二、沥青分类II.ClassificationofAsphalt地沥青Naturalbitumen石油沥青Petroleumbitumen天然沥青Naturalasphalt焦油沥青Tarasphalt煤沥青Coaltarbitumen木沥青Woodtar泥炭沥青Peattar页岩沥青Shaleasphalt

三、沥青的应用III.ApplicationofAsphalt性质Nature能溶有机溶剂Solubleinorganicsolvents及难溶于水Andinsolubleinwater良好的憎水性Goodhydrophobicity良好的粘结性Goodadhesion良好的塑性Goodplasticity耐酸、碱、耐腐蚀Acid,alkaliandcorrosionresistance应用Application防潮Moisture-proofing防腐Anti-corrosion在土木工程中，沥青广泛应用于防水材料和防腐材料，主要运用于屋面、地面和地下结构的防水，木材、钢材的防腐。Incivilengineering,asphaltiswidelyusedinwaterproofingandanticorrosivematerials,mainlyappliedtowaterproofingofroofs,floors,andundergroundstructures,aswellascorrosionprotectionoftimberandsteel.道路工程中，Inroadengineering,

本节重点是认识沥青。Thefocusofthissectionistounderstandasphalt