1. Tswj qhov zoo ntawm cov khoom siv pob zeb:
Qhov zoo ntawmpob zebcov khoom siv raw muaj qhov tseem ceeb heev ntawm kev ua haujlwm ntawm pob zeb. Kev ua tau zoo ntawm cov khoom siv raw siv hauv kev npaj shrinkage thiab cracking-resistant pob zeb yuav tsum ua tau raws li qhov yuav tsum tau ua ntawm cov qauv tsim nyog. Yog li ntawd, cov khoom siv hluav taws xob zoo tuaj yeem xaiv tau, thiab ya tshauv thiab ntxhia hmoov yog ob-sib xyaw; Qhov zoo ntawm kev sib sau ua ke muaj kev cuam tshuam zoo rau kev tawg ntawm cov pob zeb, thiab cov av nkos thiab cov ntsiab lus av nkos yuav tsum tau tswj xyuas. Xuab zeb thiab gravel nrog nruam gradation thiab me porosity; xaiv cov dej ua tau zoo txo tus neeg sawv cev nrog cov dej txo qis thiab me me shrinkage piv.
2. Optimizing qhob mix parameters:
Qhov tsis sib xws ntawm cov pob zeb sib xyaw ua ke muaj kev cuam tshuam zoo rau kev tawg ntawm cov pob zeb. Yog li ntawd, txhawm rau txhim kho qhov ntim ruaj khov ntawm cov pob zeb, kev sib xyaw tsim cov cai ntawm cov pob zeb tawg-tiv taus yuav tsum tau ua raws li kev tsim ntawm cov pob zeb sib xyaw: uas yog, tsawg cement noj, tsawg dej noj, tsim nyog dej-cement. Piv txwv li, qhov siab tshaj plaws aggregate density, thiab dual blending ntawm active admixtures thiab superplasticizers, thiab lwm yam. Nyob rau hauv cov xwm txheej ntawm kom ntseeg tau tias lub workability yuav tsum tau los ntawm tus tsim thiab kev tsim kho, cov ntsiab lus ntawm coarse aggregate nyob rau hauv lub pob zeb yuav tsum tau nce ntau li ntau tau. , cov xuab zeb tus nqi thiab cov ntsiab lus ntawm slurry yuav tsum tau txo, thiab cov fluidity thiab uniformity ntawm cov pob zeb yuav tsum tau tswj nyob rau tib lub sij hawm.
3. Lwm yam kev ntsuas los txhim kho pob zeb tawg tsis kam:
Txhawm rau daws qhov teeb meem ntawm pob zeb tawg, qhov kev ua haujlwm ntawm cov pob zeb tawg tuaj yeem txhim kho los ntawm kev ntxiv cov khoom siv tiv thaiv kev sib tsoo; nto ntub curing kuj tuaj yeem nqa tawm rau thaj tsam loj; thermal rwb thaiv tsev los yog kev ntsuas cua txias yuav tsum tau ua rau cov pob zeb loj loj tom qab tshem tawm formwork; Kev tsim kho ntawm qhov chaw Tsis txhob nqa tawm hauv nag, daus thiab cua daj cua dub; rau cov qauv hauv av diaphragm phab ntsa, siv cov kev ntsuas backfilling.
