第3章 无机胶凝材料.ppt

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1、第3章无机胶凝材料本章主要内容第1节气硬性无机胶凝材料（双语）第2节硅酸盐水泥第3节掺混合材料的硅酸盐水泥第4节其他水泥中北大学土木工程系谢谢大家！中北大学土木工程系3.1AirHardeningInorganicBindingMaterials3.1.1Introduction3.1.2Gypsum3.1.3LimeContentsInthissectionwewillmainlyintroducetheclassificationanddefinitionofbindingmaterials,introduceprodu

2、ction,setting/hardening,technicalrequirements,propertiesandapplicationofgypsumandlime.EmphasisSetting/hardeningPropertiesApplication返回中北大学土木工程系3.1.1Introduction3.1.1.1ClassificationBindingmaterialshavebeenconvenientlygroupedintotwobasicclassifications:1.Inorganicma

3、terials2.OrganicmaterialsAccordingtohardeningbehaviors,theyhavebeenconvenientlygroupedintotwobasicclassifications:1.Airhardening2.Waterhardening中北大学土木工程系3.1.1Introduction3.1.1.2Definition1.Bindingmaterials:Itreferstothematerialswhichcansticktothenon-coherentmateria

4、lsoragglomeratematerialstoproducestrengththroughphysicalandchemicalaction.2.Airhardeningbindingmaterials:Itreferstothematerialswhichcanonlyhardenintheairandkeepanddevelopitsstrengthatthesametime.3.Hydraulicbindingmaterials:Itreferstothematerialswhichcanhardennotonl

5、yintheairbutalsobetterinthewaterandkeepanddevelopitsstrengthatthesametime.返回中北大学土木工程系3.1.2Gypsum3.1.2.1Briefintroductionoftheproductionofgypsum3.1.2.2Settingandhardeningofgypsum3.1.2.3TechnicalRequirementsandPropertiesofGypsum3.1.2.4Applicationsofbuildinggypsum返回中北

6、大学土木工程系3.1.2.1BriefintroductionoftheproductionofgypsumGypsum[calciumsulfatedi-hydrate(CaSO4·2H2O)]occursinnatureasanoff-white,light-gray,orlight-pinkcrystallinemineral.Decorativepieces,whichcanbeusedassemipreciousstone,arecalledalabaster.Whenheatedintherangeof107C

7、to170C,gypsumgivesoffthreequartersofitswater.Theresultinghemi-hydrateiscalledplasterofParis.Ifgypsumisheatedabove400Cto750C,allthewaterisdrivenoff,andtheresultingmaterialiscalledanhydrousgypsumplaster.Thesamematerial,whenfoundinnature,iscalledanhydrite.Buildingg

8、ypsum：Itisakindofpowderybindingmaterialwithnoaddedadmixtureanditsmaincomponentisβ-hemi-hydrategypsum.中北大学土木工程系3.1.2.1Briefintroductionoftheproduc