Cov hmoov latex uas yaj tau dua (RDP)yog ib qho hmoov polymer uas tau tawg ua dua tshiab uas tsim los ntawm kev siv tshuab tsuag kom qhuav. Nws muaj kev nplaum zoo, kev ywj pheej, kev tawg tsis kam thiab kev tiv thaiv dej, thiab siv dav hauv cov ntaub ntawv tsim kho. nruab nrab. EPS (expanded polystyrene) thermal insulation mortar yog ib qho khoom siv rwb thaiv tsev uas sib xyaw nrog EPS cov khoom me me ua cov khoom sib xyaw ua ke, cement ua cov khoom siv cementing, thiab lwm yam khoom ntxiv. Kev qhia cov hmoov latex uas tau tawg ua dua tshiab rau hauv EPS insulation mortar tuaj yeem txhim kho nws cov khoom siv lub cev thiab cov khoom siv kho tshuab thiab kev ua haujlwm ntawm kev tsim kho.
1. Lub tshuab ua haujlwm ntawm cov hmoov latex uas tawg tau dua hauv EPS rwb thaiv tsev
Ua ib yam khoom siv polymer, RDP tsim ib zaj duab xis polymer tas mus li los ntawm kev rov ua dua thaum lub sijhawm ua kom dej noo. Zaj duab xis no tuaj yeem txheej cov khoom siv cementitious, cov khoom sib xyaw ua ke thiab cov khoom EPS hauv cov mortar, yog li ua kom lub zog sib txuas ntawm cov khoom. Tsis tas li ntawd, cov yeeb yaj kiab polymer tuaj yeem sau cov kab nrib pleb me me thiab cov qhov hauv cov mortar, yog li txhim kho cov khoom siv qhov compactness thiab impermeability. Cov yam ntxwv hloov pauv ntawm RDP pab txo qhov teeb meem tawg ntawm EPS rwb thaiv tsev mortar los ntawm qhov sib txawv ntawm qhov kub thiab txias lossis kev hloov pauv ntawm qhov hnyav.
2. Kev cuam tshuam rau kev ua haujlwm ntawm EPS rwb thaiv tsev mortar
(1) Txhim kho lub zog sib txuas
Kev qhia txog RDP tuaj yeem txhim kho lub zog sib txuas ntawm EPS rwb thaiv tsev mortar. Kev tsim cov zaj duab xis polymer tsis yog tsuas yog ua kom lub zog sib txuas ntawm cov khoom EPS thiab lub matrix xwb, tab sis kuj txhim kho kev ua tau zoo ntawm cov mortar thiab phab ntsa hauv paus, yog li txo qhov kev pheej hmoo ntawm kev poob thiab txhim kho lub zog ntawm lub kaw lus.
(2) Txhim kho qhov tawg tsis kam
Vim tiasRDPmuaj kev ywj pheej zoo, cov zaj duab xis polymer tsim los ntawm nws tuaj yeem ua kom zoo buffer kev ntxhov siab concentration thiab ncua qhov nthuav dav ntawm microcracks. Kev tshawb fawb qhia tau hais tias lub zog flexural thiab tensile zog ntawm EPS rwb thaiv tsev mortar sib xyaw nrog cov nqi tsim nyog ntawm RDP tau zoo dua, uas pab txhim kho qhov kev tiv thaiv kab nrib pleb ntawm cov mortar.
(3) Txhim kho kev ua tau zoo ntawm kev tsim kho
RDP tuaj yeem txhim kho qhov ua haujlwm tau zoo thiab khaws dej ntawm EPS rwb thaiv tsev mortar thiab txhim kho kev ua haujlwm thaum lub sijhawm tsim kho. Nws cov khoom khaws dej pab ncua qhov dej poob ntawm cov mortar, yog li ua kom ntseeg tau tias cov txheej hauv paus tau txais dej tag nrho thiab txhim kho lub zog thaum ntxov.
(4) Txhim kho kev ruaj khov
Qhov tiv thaiv dej thiab tshuaj lom neeg ntawm zaj duab xis RDP txhim kho qhov tiv thaiv khov-thaw thiab carbonation tiv thaiv ntawm EPS rwb thaiv tsev mortar. Qhov no yog qhov tseem ceeb rau kev ua haujlwm ntev ntawm cov khoom siv.
(5) Kev hloov pauv nruab nrab ntawm qhov ceev
Qhov kev qhia txog RDP tsis muaj feem cuam tshuam rau qhov ceev ntawm cov mortar, tab sis kev txhim kho ntawm lub zog compressive yuav tsum tau tswj hwm cov koob tshuaj. RDP ntau dhau yuav ua rau txo qis kev tiv thaiv compression, yog li qhov piv yuav tsum tau ua kom zoo thaum ua tiav lwm yam khoom.
3. Qhov tseem ceeb ntawm kev tsim kho vaj tse
Hauv kev siv engineering tiag tiag, EPS insulation mortar yuav tsum muaj ob qho tib si thermal rwb thaiv tsev zoo thiab cov khoom siv kho tshuab, thaum ua tau raws li qhov yuav tsum tau ua ntawm kev tsim kho yooj yim thiab ruaj khov. Ua ib qho tseem ceeb hloov kho, redispersible latex hmoov muab ntau yam kev daws teeb meem kev ua tau zoo rau EPS insulation mortar. Ntawm ib sab tes, daim ntawv thov ntawm RDP zoo heev txhim kho qhov kev nplaum thiab tawg tsis kam ntawm cov mortar thiab txo qhov kev pheej hmoo ntawm cov txheej rwb thaiv tsev poob thiab tawg; ntawm qhov tod tes, nws txoj kev txhim kho hauv kev tsim kho kev ua tau zoo thiab ruaj khov ntawm cov mortar ua rau EPS insulation mortar tsim nyog dua rau cov haujlwm txuag hluav taws xob hauv tsev siab.
Cov hmoov latex uas yaj tau dua tshiabtuaj yeem txhim kho qhov kev ua tau zoo ntawm kev sib txuas, kev tiv thaiv tawg, kev ua haujlwm ntawm kev tsim kho thiab kev ruaj khov ntawm EPS rwb thaiv tsev mortar los ntawm kev tsim cov zaj duab xis polymer. Hauv kev siv engineering, kev ua kom zoo ntawm cov koob tshuaj thiab kev siv RDP tuaj yeem ua tiav qhov sib npaug zoo tshaj plaws ntawm cov khoom siv. Kev tshawb fawb yav tom ntej tuaj yeem tshawb nrhiav ntxiv txog kev sib koom ua ke ntawm RDP thiab lwm yam kev hloov kho kom tau raws li qhov xav tau ntawm cov thermal rwb thaiv tsev mortars hauv ntau qhov xwm txheej sib txawv.
Lub sijhawm tshaj tawm: Kaum Ib Hlis-20-2024