发泡石膏轻质墙体材料的制备与性能分析

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1、发泡石膏轻质墙体材料的制备与性能研究oftheclosedbubblesandmakethebubbles’sizemoreevenlycomparedwiththeblanksample；Theoptimumdosageoftheaddingfoamwas1009powdersmixedwith150mlfoamsforpreparingfoamingplaster，underthisoptimumconditions，foamingplasters’densityandcoefficientofheatconductivityachievedabettervalue，a

2、ndcomparedtotheblankplastersample，theapparentdensityofthesampledecreasedfrom1205kg／mJto517kg／m3，thecoefficientofthermalconductivityreducedfrom0．217W／(m·K)toO．121W／(m·K)．Themechanicalpropertiesandwaterresistanceofthesamplewererelativelygood，stillCansatisfytherequirementsforpreparingfoamingp

3、lastermaterials．3．ThefoamingplastermaterialWasmodifiedinordertosolvetheproblemofitsownlowhardnessandpoorwaterresistancebyaddingmodifiedcomponentssuchasflyash，cementandcompositewaterproofingagent，theinfluenceandmechanismofthemodifyingresearchwerediscussed．Ithasbeenfoundthataddingfly·ashCani

4、mprovetheworkabilityofplasterslurry，thestrengthandthewaterresistanceperformanceCanbemodifiedbyaddingcementandcomposffewaterproofingagent．Theoptimummodificationschemewasmixed15wt％cement，20wt％flyash，and6wt％compositewaterproofingagentwithintheinorganicpowder．Thefoamingplastersample’waterdeman

5、dfornormalconsistencyWas44％，theflexuralstrengthWas1．98MPa,thecompressivestrengthWas3．90MPa,thewaterabsorptionrateWas18．6％，andthesofteningcoefficientWas0．67afterthemodification．Compared埘tlltheunmodifiedsample，thefoamingplastersample’waterdemandfornormalconsiStencyWasreducedby5％，thebendingst

6、rengthWasincreasedby44．5％，thecompressivestrengthWasincreasedby38．3％，thewaterabsorptionrateWasreducedby58．6％，andsofteningcoefficientWasincreasedby45．7％．4。Thepolypropylenefiberswereaddedintotheinorganicpowdertoenhancethebendinganti-crackingperformanceoffoamingplastermaterials，andthefiberrein

7、forcedfoamingplasterlightweightinsulationinsidewallplankWasprepared．Theresultshowedthattheaddingfiberhadimprovedthebendinganti-crackingperformanceofthefoamingplastermaterials．Whentheaddingfibers’lengthwere10—16mmandthemixingdosagewere1．0wt％谢mtheafter-mixedmeth