Vim Li Cas Feem Ntau Cov Tuam Txhab Tsim Kho Tam Sim No Xaiv Cov Tsis Muaj Alkali-dawb Accelerators Hloov Alkali-based Accelerators?

Vim li cas feem ntau cov tuam txhab tsim kho tam sim no xaiv cov alkali-dawb accelerators es tsis txhob alkali-based accelerators?

Hauv kev tsim vaj tsev, ntau cov khoom siv tau siv. Tus neeg saib xyuas ceev ceev, tus neeg saib xyuas dej txo qis, tus neeg sawv cev nce viscosity, tus neeg sawv cev thaum muaj zog, tus neeg saib xyuas dej tsis zoo thiab lwm yam.

Ntawm lawv, tus neeg sawv cev ceev ceev yog ib qho tseem ceeb admixture. Txhawm rau tiv thaiv cov pob zeb txau los ntawm kev poob vim lub ntiajteb txawj nqus, nws yog ntxiv rau kev tsim kho ntawm tus neeg sawv cev ceev ceev, uas tuaj yeem ua rau cov pob zeb coagulate nyob rau hauv ob peb feeb kom tau raws li cov kev cai tshwj xeeb ntawm kev txau, kev tsim kho sai thiab dej nres. Hom yog kev tsim kho qhov av.

Tus neeg saib xyuas ceev tau muab faib ua ob hom, alkali ceev-teeb tus neeg saib xyuas thiab alkali-dawb ceev-tus neeg saib xyuas, vim li cas tam sim no feem ntau ntawm kev xaiv kev tsim kho yog alkali-dawb ceev-teeb neeg saib xyuas es tsis yog alkali ceev-teeb neeg saib xyuas, yog vim li cas koj paub ntau npaum li cas?

Alkali ceev-teeb tus neeg saib xyuas

Alkali ceev-setting tus neeg saib xyuas muaj qhov zoo ntawm kev nthuav dav tus nqi siab, siab ntxov zog, pheej yig tus nqi, tab sis tib lub sij hawm muaj qhov tsis zoo xws li cov ntsiab lus alkali siab, ceev hardening ceev, thiab yooj yim rau alkali aggregate cov tshuaj tiv thaiv. Nws yog aluminium hydroxide, sodium hydroxide thiab calcium oxide raws li cov khoom siv raw, thiab tom qab ntawd sib xyaw nrog qee qhov ntawm cov txheej txheem retarder, cov khoom siv raw yog cov khoom siv khib nyiab, muaj qee cov chloride ions thiab lwm yam impurities.

Muaj alkali ceev-teeb tus neeg saib xyuas hauv kev siv tiag tiag ntawm cov teeb meem hauv qab no feem ntau muaj:

1. Hauv kev siv engineering, vim nws qhov kev nthuav dav siab, muaj zog thaum ntxov, yog li ua rau cov qauv pob zeb tawg, ua rau muaj teeb meem zoo.

2. Kev siv tsis tsim nyog ntawm alkali ceev-setting tus neeg saib xyuas, cov qauv pob zeb ua rau corrosion ntawm reinforcing steel, cov qauv yog cuam tshuam rau corrosion, cuam tshuam rau kev ruaj ntseg ntawm cov qauv.

3. Kev siv cov alkali ceev-setting tus neeg saib xyuas yuav cuam tshuam rau lub durability ntawm cov pob zeb, txo cov pob zeb tsis kam mus rau khov thiab thawing, muaj peev xwm los tiv thaiv carbonation.

4. Qee cov khoom tsis tsim nyog ntawm kev ua lag luam muaj cov alkali dawb, uas tsis yog tsuas yog tsis zoo rau lub zog thaum ntxov ntawm pob zeb, tab sis kuj muaj kev cuam tshuam rau kev txhim kho lub zog lig ntawm pob zeb.

5. Tom qab sib tov alkali ceev-teeb tus neeg saib xyuas hauv engineering daim ntawv thov, nws yuav cuam tshuam rau lub twj tso kua mis ntawm pob zeb.

6. Muaj alkali ceev-teeb neeg saib xyuas yog ntau corrosive rau tib neeg lub cev. Nws yuav tsim cov npuas ntau thaum nws ntsib alkali, yog li nws yuav tsum tsis txhob siv rau hauv cov pob zeb nrog alkali. Sulfur thiab chlorine uas muaj cov neeg sawv cev ceev ceev thiab cov tshuaj alkaline hnov ​​​​mob los tsim sulfate thiab sulfite, tib neeg lub cev muaj kev cuam tshuam loj heev.

7. Cov tshuaj chlorine-muaj cov neeg sawv cev ceev ceev yog yooj yim rau decompose chlorine ions nyob rau hauv cov txheej txheem ntau lawm, uas yuav ua rau ib co kuab paug rau ib puag ncig.

Tab sis alkali-dawb ceev-tus neeg saib xyuas tsis muaj teeb meem no. Alkali-dawb ceev-teeb tus neeg saib xyuas muaj kev cuam tshuam me ntsis ntawm lub zog ntawm cov pob zeb hauv qab theem, thiab nws tseem tuaj yeem txhim kho qhov ruaj khov ntawm cov pob zeb, uas yog qhov tseem ceeb tshaj plaws hauv kev tiv thaiv ib puag ncig.

Yog li ntawd, alkali-dawb ceev-teeb neeg saib xyuas los hloov alkaline ceev-setting tus neeg saib xyuas yog qhov kev sib piv.