Dab tsi ntau yam yog dej-txo cov neeg sawv cev thiab lawv tus yam ntxwv yog dab tsi?

Dej-txo cov neeg sawv cev, tseem hu ua cov tshuaj yas lossis cov tshuaj ntsuab siv rau hauv cov pob zeb ua kom zoo dua qub, thiab txhim kho cov ntsiab lus ntawm cov khoom siv. Muaj ob peb ntau hom dej-txo cov neeg sawv cev, txhua tus nrog nws tus kheej cov yam ntxwv thiab kev siv. Nov yog qee hom:

1. Lignosulfonates: Lignosulfonates muab tau los ntawm ntoo pulp thiab yog ib hom ntawm cov hom dej uas txo qis. Lawv feem ntau yog siv rau hauv cov pob zeb sib xyaw los txhim kho kev ua haujlwm thiab txo cov ntsiab lus dej thaum khaws dag zog tsim nyog. Lignosulfonates yog tus nqi-ua tau zoo thiab tshaj nrog ntau yam ntawm cov cemement.
2. Naphthalene Sulfonates: Naphhalene Sulfonate-based dej reducers muaj txiaj ntsig ntawm kev txo cov dej sib tov thaum txhim kho cov Flowability thiab workability. Lawv yog tshwj xeeb yog tsim nyog rau kev tsim kom muaj lub siab-zog qhob nrog dej tsawg-rau-xis mas piv. Naphthalene sulfonates kuj tseem tuaj yeem pab txo qis kev pheej hmoo ntawm kev cais thiab los ntshav hauv cov pob zeb.
3. Melamine sulfonates: melamine-based dej reducers muaj cov khoom siv dej zoo dua piv rau Greposulfonates thiab Naphtenene sulfonates thiab naphthalene sulfonates. Lawv muab kev ua haujlwm zoo heev, muaj lub zog thaum ntxov, thiab txhim kho lub durability hauv pob zeb sib xyaw. Melamine sulfonates feem ntau yog siv nyob rau hauv cov kev ua tau zoo pob zeb ua xws li cov pob zeb ua ntej thiab prestressed.
4. Polycarboxylate yog tus kheej (pccarboxylate muaj kev pab yog ib tug tshiab tshaj plaws ntawm cov neeg sawv cev dej-txo tau rau lawv cov kev ua haujlwm siab thiab versatility. Lawv tuaj yeem txo cov dej hauv cov dej sib xyaw thaum tswj cov dej ntws tawm thiab ua haujlwm ntau dua. Cav ua kom zoo nkauj heev nrog ntau hom cement thiab conmixtures thiab siv tau nyob rau hauv tus kheej consolidating pob zeb ua (SCC) thiab qib siab ua vaj tse (HPC) cov ntawv thov.
5. Kev ua ke Profixtures ua ke: qee cov neeg sawv cev dej-txo cov qauv ua kev sib xyaw ua ke kom ua tiav cov hom phiaj sib txawv. Cov tswv yim zoo no tuaj yeem muab cov teebmeem kev ua haujlwm, xws li txhim kho qis qis qis dua, txhim kho kev txhim kho zog, lossis txo qhov cua nkag.

Cov yam ntxwv ntawm cov dej-txo cov neeg sawv cev yuav suav nrog:

• Dej txo: Lub chaw ua haujlwm ntawm cov dej-txo cov neeg sawv cev yog txhawm rau kom ua tiav cov dej sib xyaw uas yuav tsum tau ua kom tiav cov khoom siv ua vaj tse. Qhov no yuav pab txhim kho lub zog, kav ntev, thiab kev ua haujlwm ntawm cov khoom thaum tsis tshua muaj kev pheej hmoo ntawm cais thiab los ntshav.
• Kev ua haujlwm: Dej txo cov neeg sawv cev txhim kho kev ua haujlwm thiab kev sib xyaw ua ke ntawm kev sib xyaw thiab kev sib xyaw ua ke yam tsis muaj kev txi lub zog los yog cohesion. Lawv pab kom muaj kev sib raug zoo sib faib ntawm cov khoom siv sib xyaw thiab cov khoom siv xis nyob thoob plaws hauv kev sib xyaw.
• Kev sib xyaw: Dej txo cov neeg sawv cev yuav tsum tau sib xyaw nrog lwm cov kws lij choj thiab ntxiv rau cov neeg sawv cev cua, teeb tsa ua si, thiab cov retarders, thiab accelerators. Sib cav kom ntseeg tau tias cov khoom xav tau thiab kev ua tau zoo ntawm cov pob zeb ua tiav tsis muaj kev cuam tshuam lossis cov kev mob tshwm sim.
• Qhov nqi tshuaj npaum li cas: Qhov ua tau zoo ntawm cov neeg sawv cev dej-txo cov neeg sawv cev yog nyob ntawm qhov ntau npaum li cas ntawm cov ntsiab lus ntawm cov ntsiab lus hauv cov ntsiab lus hauv kev sib xyaw. Kev pom zoo saib cov nqi yuav txawv nyob ntawm cov yam ntxwv xws li Maas hom, agent yam ntxwv kub, thiab xav tau cov khoom lag luam kub.
• Lub sijhawm teem sijhawm: Qee cov neeg sawv cev dej txo yuav cuam tshuam rau lub sijhawm ua haujlwm sib xyaw, lub sijhawm ua kom rov ua haujlwm thaum pib thiab sijhawm kawg. Kev siv tshuaj tuag thiab xaiv dej txo qis yog tsim nyog kom ua tiav cov yam ntxwv uas xav tau rau kev siv kev siv khoom siv.
• Tus nqi thiab kev ua tau zoo: kev txiav txim siab xws li raug nqi-ua tau zoo, kev ua tau zoo, thiab cov phiaj xwm kev txo nqi dej rau ib daim ntawv thov. Nws yog qhov tseem ceeb los ntsuas cov txiaj ntsig thiab cov kev txwv ntawm ntau hom kev txo qis los txiav txim siab cov kev xaiv tsim nyog tshaj plaws rau cov phiaj xwm.

Dej-txo cov sawv cev ua si lub luag haujlwm tseem ceeb hauv kev ua tau zoo thiab siv cov qhob ua kom zoo thiab txhim kho kom zoo ntawm cov qauv tsim tiav.