Qhov sib xyaw ua ke yog dab tsi?

 

 

Qhov sib xyaw ua ke yog dab tsi?

Kev sib xyaw ua ke ntawm pob zeb yog ib qho tseem ceeb ntawm kev tsim kho, ncaj qha cuam tshuam rau lub zog, durability, thiab tag nrho cov qauv zoo. Los ntawm kev ua kom zoo tshaj qhov sib xyaw ua ke, peb tuaj yeem tsim cov pob zeb ua tau raws li qhov tshwj xeeb xav tau ntawm txhua qhov kev tsim kho, los ntawm cov txheej txheem loj loj mus rau cov tsev me me. Nyob rau hauv phau ntawv qhia no, peb delve rau hauv cov ntsiab lus tseem ceeb ntawm kev sib xyaw ua ke, tshawb xyuas lawv cov kev hloov pauv rau cov kev siv sib txawv, thiab qhia txog lawv qhov tseem ceeb hauv kev ua kom lub neej ntev thiab kev ruaj ntseg ntawm txhua tus qauv.

Nkag siab txog qhov sib xyaw ua ke

A qhob mix ratiosawv cev rau kev sib xyaw ua ke ntawm cov khoom xyaw-cement, dej, xuab zeb, thiab aggregates-uas tsim cov pob zeb uas xav tau rau lub zog, kev ua haujlwm, thiab kav ntev. Qhov sib xyaw ua ke yog qhia raws li qhov kev faib ua feem ntawm cov khoom no thiab sib txawv raws li cov kev cai tshwj xeeb ntawm qhov project. Cov kev tsim kho sib txawv yuav tsum muaj qhov sib txawv sib txawv los txhim kho kev ua tau zoo nyob rau hauv ntau yam kev thauj khoom, ib puag ncig, thiab kev zoo nkauj.

Cov ntsiab lus tseem ceeb ntawm kev sib xyaw ua ke

Cement: Lub binder nyob rau hauv lub pob zeb sib tov, cement reacts nrog dej los tsim ib tug muaj zog matrix uas tuav cov xuab zeb thiab aggregates ua ke. Tus nqi ntawm cov cement nyob rau hauv qhov sib tov dictates lub zog thiab binding peev xwm ntawm qhov kawg pob zeb.

Dej: Dej yog cov catalyst uas ua rau cov cement, pib cov tshuaj tiv thaiv hu uadej dej. Cov dej me me dhau los ua rau qhuav, sib tov sib xyaw, thaum cov dej ntau dhau ua rau cov pob zeb ua rau nws qhov porosity.

Xuab zeb: Xuab zeb ua rau lub pob zeb ua haujlwm tau zoo, muab cov khoom sib xyaw ua ke thiab txo qhov yuav ua rau shrinkage thiab tawg. Nws cov khoom zoo sau nyob rau hauv qhov sib txawv ntawm cov aggregates loj.

Aggregates: Pob zeb lossis pob zeb crushed ua cov khoom ntxhib ntawm kev sib xyaw. Aggregates ho txhim kho cov pob zeb ua kom muaj zog, txo nws cov nqi, thiab tiv thaiv kom tsis txhob muaj ntau dhau.

Common Concrete Mix Ratios

Kev sib xyaw sib txawv yog haum rau cov kev siv tshwj xeeb, raws li qhov xav tau lub zog thiab kev ua haujlwm ntawm cov pob zeb. Ib tug qauvgeneral-purpose mix ratiofeem ntau sawv cev li1:2:4- ib feem ntawm cov cement, ob seem xuab zeb, thiab plaub seem aggregates. Qhov piv no muab qhov sib npaug ntawm lub zog thiab kev ua haujlwm, ua rau nws zoo tagnrho rau kev siv pob zeb xws li cov plag tsev thiab pavements.

Rau kev siv tshwj xeeb ntxiv, cov piv txwv hauv qab no yog ntau:

1:1.5:3: Qhov sib xyaw no muab lub zog ntau dua thiab siv rau hauv cov khoom siv xws li kab teeb, kab, thiab cov phab ntsa thauj khoom.

1:3:6: Kev sib xyaw ua ke qis dua feem ntau siv rau cov khoom tsis yog cov qauv, xws li paving thiab cov khoom sib sib zog nqus.

1:1:2: Ib qho piv txwv ntawm lub zog siab uas tsim los rau cov ntawv siv hnyav uas xav tau lub zog siab tshaj plaws, xws li cov hauv paus lossis cov khoom siv hauv tsev siab.

Xam xam qhov sib xyaw ua ke

Txhawm rau txiav txim siab qhov sib xyaw ua ke zoo tshaj plaws rau ib txoj haujlwm tshwj xeeb, peb ua raws li cov txheej txheem tsim qauv uas txiav txim siab cov khoom xav tau ntawm cov pob zeb thiab txhua qhov kev cai hauv lub tsev.

Cov kauj ruam los xam Mix Ratios:

Txheeb xyuas cov khoom vaj tse uas xav tau: Xav txog qhov xav tau compressive zog, durability, thiab workability rau daim ntawv thov.

Sib tham Standards: Xa mus rau cov cai hauv tsev thiab cov lus qhia tshwj xeeb kom ua tau raws li cov cai hauv zos thiab cov lus pom zoo.

Txiav txim siab txog cov khoom siv: Xam qhov tseeb ntawm cov cement, xuab zeb, thiab aggregates xav tau raws li qhov sib xyaw ua ke xaiv. Piv txwv li, hauv a1: 2: 4 mx, rau txhua 1 feem ntawm cov cement, peb yuav siv 2 feem ntawm cov xuab zeb thiab 4 feem ntawm cov khoom sib xyaw.

Ntsuas thiab sib tov: Ua tib zoo ntsuas thiab ua tib zoo sib xyaw cov khoom kom ntseeg tau tias muaj kev sib luag thiab kev ua haujlwm zoo ib yam. Kev sib xyaw ua ke yog qhov tseem ceeb rau kev ua tiav qhov xav tau lub zog thiab kav ntev.