Kev faib cov dej txo tus neeg sawv cev

Kev faib tawm morphological:

Kua thiab hmoov

Kev txo dej thiab kev muaj peev xwm txhim kho pawg:

Muab faib rau hauv cov dej zoo tib yam (tseem hu ua plasticizer, dej txo qis tsawg dua 8 feem pua), cov dej ua haujlwm siab (tseem hu ua superplasticizer, dej txo qis tsawg dua 14 feem pua) thiab cov dej ua haujlwm siab (txo cov dej. tus nqi tsis tsawg tshaj li 25 feem pua), thiab muab faib ua hom zog thaum ntxov, hom qauv thiab hom retarded.

Kev faib khoom siv:

1. Lignosulfonate:

Nws yog ib qho dej txo qis, thiab nws cov khoom siv raw yog lignin, uas feem ntau muab rho tawm los ntawm cov ntoo coniferous. Lignin yog tsim los ntawm polymerization ntawm peb lignin monomers: p-argonyl cawv, coniferyl cawv, thiab sinapyl cawv, thiab yog siv rau mortar. Nws tuaj yeem txhim kho kev tsim kho, fluidity thiab lub zog, thiab cov dej txo qis yog 5 feem pua ​​-10 feem pua.

2. Naphthalene sulfonate superplasticizer:

Nws yog qhov ua tau zoo tshaj plaws dej reducer siv hauv kuv lub tebchaws. Nws yog ib yam khoom ntawm naphthalene sulfonated los ntawm sulfuric acid thiab ces condensed nrog formaldehyde. Nws belongs rau anionic surfactants. Cov tsos ntawm hom dej no txo ​​tus neeg sawv cev tuaj yeem yog lub teeb daj mus rau tsaus xim av hmoov nyob ntawm cov khoom. Nws yog yooj yim soluble nyob rau hauv dej thiab muaj ib tug zoo dispersion nyhuv ntawm ntau cov ntaub ntawv hmoov xws li cement. Cov dej txo tus nqi tuaj yeem ncav cuag 25 feem pua.

3. Melamine-raws li dej reducer:

Nws yog cov khoom ntawm sulfonation ntawm melamine los ntawm sulfuric acid thiab condensation nrog formaldehyde, yog li cov tshuaj lub npe yog sulfonated melamine formaldehyde resin, uas belongs rau anionic surfactant. Cov tsos ntawm hom dej reducer no yog cov hmoov dawb, yooj yim soluble hauv dej, zoo dispersion ntawm hmoov cov ntaub ntawv, siab dej txo tus nqi, zoo fluidity thiab kho tus kheej.

4. Hmoov polycarboxylate:

Nws yog ib hom tshiab ntawm kev ua haujlwm siab dej txo tus neeg sawv cev tsim nyob rau xyoo tas los no. Nws muaj cov dej zoo txo ​​tus nqi, fluidity thiab permeability. Obviously txhim khu lub zog ntawm cov cement mortar, tab sis cov txheej txheem ntau lawm yog qhov nyuaj, thiab tus nqi dav dav yog siab dua.

5. Casein:

Nws yog biopolymer tau tom qab cov mis nyuj tau acid-precipitated thiab nruas-qhuav.

6. Polycarboxylate ua haujlwm siab dej reducer;

Polycarboxylate high-performance dej reducer yog cov pob zeb superplasticizer (dej reducer) nrog cov thev naus laus zis tshaj plaws, cov ntsiab lus thev naus laus zis siab tshaj plaws, qhov kev thov zoo tshaj plaws thiab kev ua tau zoo tshaj plaws hauv ntiaj teb. Polycarboxylate high-performance dej reducer yog cov khoom sib xyaw ntawm carboxylic acid grafted multi-polymer thiab lwm yam zoo additives. Kev sib piv nrog cov khoom zoo sib xws hauv tsev thiab txawv teb chaws qhia tau hais tias polycarboxylate high-performance dej reducer tau mus txog qib siab thoob ntiaj teb tam sim no nyob rau hauv cov nqe lus ntawm kev ua tau zoo thiab kev ua haujlwm ntawm tus nqi.

Polycarboxylate dej reducer yog cov hmoov polycarboxylate dej reducer

Vim muaj kev qhia txog cov pab pawg tshwj xeeb hauv cov txheej txheem tsim khoom, nws muaj cov yam ntxwv ntawm cov dej txo qis, kev ua haujlwm zoo thiab kev siv dav.

Nws muaj kev ua haujlwm ruaj khov thiab muaj cov dej zoo txo ​​cov nyhuv hauv qhov sib txawv PH nqi ib puag ncig.

Thiab nws yog universal polycarboxylate superplasticizer

Nws muaj ntau yam kev siv thiab tuaj yeem siv rau:

1. Tsis-shrinkage grouting khoom, grouting tus neeg saib xyuas, cement-based self-leveling mortar, thiab lwm yam.

2. Waterproof mortar, kho mortar, thermal rwb thaiv tsev mortar thiab nws cov mortar txuam;

3. Gypsum-based self-leveling, ntau hom gypsum mortar, thiab lwm yam.

4. Lwm cov khoom siv siab fluidity mortar, pob zeb, thiab lwm yam.