Vim Li Cas Feem Ntau Cov Kev Tsim Kho Tam sim no xaiv Alkali-dawb Accelerator Hloov Alkali Accelerator?

Hauv kev tsim ua vaj tse, ntau cov khoom siv tau siv, suav nrog cov accelerators, dej reducers, thickeners, cov neeg ua hauj lwm muaj zog thaum ntxov, thiab cov tshuaj tiv thaiv dej.

Ntawm cov no, accelerators yog indispensable. Txhawm rau tiv thaiv cov pob zeb txau los ntawm kev poob vim lub ntiajteb txawj nqus, accelerators raug ntxiv thaum tsim kho. Lawv tso cai rau cov pob zeb teeb tsa tsis pub dhau feeb, ua tau raws li cov kev cai tshwj xeeb ntawm kev txau, kev tsim kho sai, thiab kev tiv thaiv dej. Ib qho piv txwv yog kev tsim kho qhov av.

Accelerators muab faib ua ob hom: alkaline accelerators thiab non-alkaline accelerators. Vim li cas feem ntau cov kev tsim kho tam sim no xaiv cov uas tsis yog-alkaline accelerators es tsis txhob alkaline accelerators? Nov yog yam koj yuav tsum paub:

Alkaline Accelerators

Alkaline accelerators muaj qhov zoo xws li tus nqi nthuav dav, siab thaum ntxov zog, thiab tus nqi qis. Txawm li cas los xij, lawv kuj muaj qhov tsis zoo xws li cov ntsiab lus alkali siab, tawv tawv sai, thiab nyiam ua rau muaj kev cuam tshuam alkali-tag nrho. Lawv yog tsim los ntawm cov ntaub ntawv xws li txhuas hydroxide, sodium hydroxide, thiab calcium oxide, tov nrog ib tug npaum li cas ntawm retarders. Cov khoom siv raw yog cov khoom siv khib nyiab uas muaj qee yam ntawm impurities xws li chloride ions.

Hauv kev siv tswv yim, alkaline accelerators feem ntau nthuav tawm cov teeb meem hauv qab no:

1. High expansion tus nqi thiab lub zog thaum ntxov: Qhov no tuaj yeem ua rau cov pob zeb tawg, ua rau muaj teeb meem zoo.
2. Corrosion thiab txo kev nyab xeeb: Kev siv tsis raug ntawm alkaline accelerators tuaj yeem ua rau steel corrosion thiab cov qauv corrosion, cuam tshuam rau kev nyab xeeb.
3. Cov teebmeem tsis zoo ntawm kev ua haujlwm ntev: Kev siv cov alkaline accelerators tuaj yeem cuam tshuam tsis zoo rau cov pob zeb ua kom ntev, txo nws cov khov-thaw tsis kam thiab carbonation tsis kam.
4. Cov khoom tsis tsim nyog: Qee cov khoom lag luam muaj cov alkali dawb, uas ua rau muaj kev puas tsuaj rau lub zog thaum ntxov thiab tom qab.
5. Kev cuam tshuam rau lub twj tso kua mis: Ntxiv alkaline accelerators tuaj yeem cuam tshuam lub twj tso kua mis ntawm pob zeb.
6. Corrosion rau tib neeg: Alkaline accelerators tuaj yeem tsim ntau npuas thaum ntsib alkali, ua rau lawv tsis haum rau alkaline pob zeb. Accelerators uas muaj leej faj thiab chlorine teb nrog alkaline tshuaj los tsim sulfates thiab sulfites, uas yog heev corrosive rau tib neeg.
7. Ib puag ncig muaj kuab paug: Cov chlorine-muaj accelerators tuaj yeem decompose rau hauv chloride ions thaum lub sij hawm tsim khoom, ua rau muaj kuab paug ib puag ncig.

Tsis-Alkaline Accelerators

Tsis-alkaline accelerators tsis muaj cov teeb meem no. Lawv muaj kev cuam tshuam me me rau tom qab lub zog ntawm cov pob zeb thiab tuaj yeem txhim kho lub durability ntawm pob zeb. Hauv ib puag ncig engineering, non-alkaline accelerators yog qhov tseem ceeb.

Cov ntsiab lus: Tsis yog-alkaline accelerators nyiam dua alkaline accelerators vim lawv qhov cuam tshuam tsawg kawg nkaus ntawm kev ua vaj tse, txhim kho durability, thiab txo kev pheej hmoo ntawm ib puag ncig thiab tib neeg kev noj qab haus huv.