Cov txheej txheem kev kawm tau ntawm kev ua si ntxiv

Cov txheej txheem kev faib tawm ntawm cov tsev kawm ntxiv nrog cov hauv qab no:

Kev faib tawm los ntawm cov khoom xyaw:
Inorganic monsixtures: suav nrog ntau cov inorganic ntsev, xws li cacl2 thiab na2o hydroxide nyob rau hauv waterproofing tus neeg sawv cev, thiab lwm yam.
Organic AdmixTures: Hom admixture no rau feem ntau ntawm cov pob zeb ua kom zoo nkauj, suav nrog cov khoom siv surfactants thiab tsuas yog muaj anionic, cationicic thiab polymeric surfactants, xws li txo cov neeg sawv cev. Lignosulfonates, Lignosulforonic acid fortherehyde condensates, thiab lwm yam.
Composite Admixtures: admixtures ua tau los ntawm cov khoom sib xyaw tsim nyog thiab cov organic sib xyaw, feem ntau muaj ntau lub zog lossis txhim kho ib qho kev ua tau zoo.
Kev faib tawm los ntawm kev ua haujlwm:

Admixtures uas txhim kho cov khoom siv pob zeb ua kom sib xyaw: suav nrog ntau cov neeg sawv cev dej, huab cua Entraining cov neeg sawv cev, thiab lwm yam.
Admixtures uas kho lub sijhawm thiab cov khoom tawv ntawm cov pob zeb ua: suav nrog cov neeg sawv cev, suav nrog cov neeg sawv cev ntxov, tsuj hluav taws xob thaum ntxov, nrawm, thiab lwm yam.
Admixtures txhawm rau txhim kho cov kev ua tsis zoo ntawm cov pob zeb ua: suav nrog cov huab cua-entraining cov neeg sawv cev thiab xeb tsis muaj neeg inhibitors.
Admixtures uas txhim kho lwm cov khoom ntawm cov qhob: suav nrog huab cua-entraining cov neeg sawv cev, cov neeg sawv cev nthuav dav, cov tshuaj tiv thaiv, xim, thiab lwm yam.