Cov neeg sawv cev hauv lub cev, xws li cov tshuaj sib xyaw, thiab lwm yam tshuaj sib xyaw ua ke, thiab lwm yam. Thaum cov qhuav-cug cug yog tov nrog dej, nyob rau hauv qhov kev txiav txim ntawm hydrophilic tiv thaiv colloid thiab tshuab cov hmoov av yuav disperse mus rau hauv dej.
Vim muaj cov yam ntxwv sib txawv thiab kev hloov kho ntawm txhua tus kab mob kom sib txawv, qee tus muaj cov nyhuv ntawm kev nce zuj zus thixotropy. Lub tshuab ntawm nws cov cawv yog los ntawm ntau yam, suav nrog cov hmoov ntawm cov hmoov av ntawm lub sij hawm, cawv ntawm cov kev tiv thaiv kab mob khaub thuas, thiab cawv ntawm txoj siv xis thiab dej siv. Qhov cuam tshuam ntawm cov hauv qab no suav nrog kev cuam tshuam ntawm kev nce cov huab cua npuas, nrog rau kev cuam tshuam ntawm nws tus kheej cov kev sib ntxiv thiab kev sib cuam tshuam nrog lwm cov kev sib ntxiv. Yog li no, customized thiab subdivided xaiv ntawm redispersible polymer hmoov yog ib qho tseem ceeb txhais tau tias cuam tshuam cov khoom zoo. Ntawm lawv, cov kev pom ntau ntawm kev pom yog tias cov hmoov polymer uas muaj cov tshuaj khib nyiab ntawm lub colp, thiab cov neeg pleev xim polymer, tshwj xeeb yog cov tshuaj tiv thaiv kab mob polymer, tshwj xeeb yog cov tshuaj tiv thaiv kab mob, rau dej. Qhov nce ntawm α ua rau kev txhim kho ntawm cohesion ntawm kev siv tshuaj khib, yog li txhim kho qhov ua haujlwm ntawm lub cug. Tom qab, lub tshuaj khib ntub uas muaj cov yas hmoov rho tawm tau thov rau qhov chaw ua haujlwm. Nrog rau kev txo qis ntawm noo noo ntawm peb theem - qhov nqus ntawm cov npoo av, thiab qhov kev sib xyaw ua ke sib xyaw, thiab thaum kawg ua cov yeeb yaj kiab txuas ntxiv. Cov txheej txheem no feem ntau tshwm sim nyob rau hauv lub pores ntawm cug tshuaj thiab saum npoo ntawm cov khoom.
Nws yuav tsum tau hais txog qhov ntawd, txhawm rau ua tus txheej txheem no tsis pub dhau, thaum lub ntsej muag polloid dua, cov hmoov polymer tag nrho, cov hmoov polymer tag nrho, cov hmoov polymer los ntawm cov yeeb yaj kiab polymer system. Qhov no tsis yog teeb meem hauv lub cav cade xis, vim tias nws yuav tau cog qoob loo ntawm Quantz tsim los ntawm cov cement, thiab tib lub sijhawm tsis muaj kev tiv thaiv hydrophilic. Colloid, zaj yeeb yaj kiab uas yog insoluble hauv dej thiab tsim los ntawm ib-lub sij hawm disispersible latterx hmoov, tab sis kuj nyob rau hauv cov xwm txheej ntawm kev ncua ntev hauv dej. Hauv cov tshuab tsis yog-alkaline, xws li gypsum lossis cov tshuab uas muaj rau cov khoom siv hluav taws xob, nws tsis cuam tshuam rau cov duab kawg, nws tsis muaj kev cuam tshuam rau cov ntawv thov ntawm cov khoom siv hluav taws xob uas tsis sib xws hauv cov kab ke no.
Nrog kev tsim ntawm cov duab thib kawg, lub moj khaum ntawm cov capacic thiab cov khoom siv hydraulic yog tsim nyob rau hauv lub ntsej muag zoo nkauj, thiab lub cev pob txha taub hau, thiab cov khoom siv hydraulic Kev sib txuas tau yooj yim. Qhov kev sib txuas no tuaj yeem xav tau ntau cov springs me me sib txuas nrog rau lub pob txha tsis sib xws. Txij li thaum lub zog tensile ntawm cov duab dhos polymer ntawm cov khoom siv yas tau ntau dua li cov khoom siv hydraulic yog qhov ua kom zoo dua, uas yog, lub zog cohesive. txhim kho. Txij li qhov hloov tau thiab tsis muaj peev xwm ntawm cov polymer yog ntau dua li cov kev ntxhov siab ntawm cov kev ntxhov siab ntawm lub cug captance ntawm cug cug.
Lub Sijhawm Post: Feb-20-2025