Taw qhia
Batching nroj tsuag yog ib qho tseem ceeb ntawm kev tsim kho kev lag luam. Cov nroj tsuag no yog siv los tsim cov pob zeb, uas yog ib qho ntawm cov khoom siv tseem ceeb hauv kev tsim kho. Kev ua haujlwm zoo ntawm cov nroj tsuag batching yog qhov tseem ceeb los xyuas kom meej tias cov pob zeb ua tau zoo. Hauv kab lus no, peb yuav tham txog cov khoom siv raw uas xav tau rau kev ua haujlwm zoo ntawm cov nroj tsuag batching.
Qhov tseem ceeb ntawm cov khoom siv raw
Cov khoom siv raw yog qhov tseem ceeb rau kev ua haujlwm ntawm cov nroj tsuag batching. Yog tias tsis muaj cov khoom siv raw, cov nroj tsuag batching tsis tuaj yeem tsim cov pob zeb. Yog li ntawd, nws yog ib qho tseem ceeb uas yuav tsum tau siv cov khoom zoo raw khoom kom ntseeg tau tias cov pob zeb ua tau zoo.
Cov khoom siv raw
Muaj cov khoom sib txawv uas xav tau rau kev ua haujlwm zoo ntawm cov nroj tsuag batching. Cov khoom siv raw no muaj xws li cement, dej, aggregates, thiab additives.
Cement
Cement yog cov khoom siv tseem ceeb siv hauv kev tsim cov pob zeb. Nws yog cov hmoov zoo ua los ntawm limestone, av nplaum, thiab lwm yam minerals. Cov cement feem ntau yog siv los khi lwm cov ntaub ntawv ua ke hauv cov pob zeb sib xyaw.
Muaj ntau hom cement muaj, xws li Portland cement, slag cement, thiab ya tshauv cement. Portland cement yog hom cement feem ntau siv hauv kev tsim cov pob zeb.
Nws yog ib qho tseem ceeb uas yuav tsum tau siv cov cement zoo los xyuas kom meej tias cov pob zeb tsim tau zoo. Qhov zoo ntawm cov cement tuaj yeem raug sim siv ntau txoj hauv kev xws li kev ntsuas qhov zoo, ntsuas suab, thiab ntsuas lub zog.
Dej
Dej yog lwm yam khoom siv tseem ceeb uas siv hauv kev tsim ua vaj tse. Cov dej yog ntxiv rau cov cement los ua ib qho muab tshuaj txhuam, uas tom qab ntawd khi cov aggregates ua ke.
Nws yog ib qho tseem ceeb uas yuav tau siv cov dej huv uas tsis muaj impurities. Tus nqi ntawm cov dej siv hauv kev tsim cov pob zeb yuav tsum yog kom ntseeg tau tias cov pob zeb tsim tau zoo.
Aggregates
Aggregates yog lwm yam khoom siv tseem ceeb siv hauv kev tsim ua vaj tse. Aggregates feem ntau muab faib ua ob pawg: nplua aggregates thiab coarse aggregates.
Fine aggregates muaj xws li xuab zeb, thaum coarse aggregates muaj xws li gravel thiab crushed pob zeb. Qhov kev faib ua feem ntawm cov nplua thiab ntxhib aggregates siv nyob rau hauv cov pob zeb ntau lawm txawv nyob ntawm seb qhov yuav tsum tau muaj zog thiab ntom ntawm cov pob zeb.
Nws yog ib qho tseem ceeb uas yuav tsum tau siv cov khoom sib xyaw ua ke kom ntseeg tau tias cov pob zeb tsim tau zoo. Qhov zoo ntawm cov khoom sib xyaw tuaj yeem raug sim siv ntau txoj hauv kev xws li kev soj ntsuam sieve, ntsuas qhov ntsuas qhov tshwj xeeb, thiab ntsuas qhov nqus.
Cov khoom xyaw
Admixtures yog cov khoom siv ntxiv rau kev sib xyaw ua ke los txhim kho nws cov khoom. Admixtures feem ntau yog siv los txhim kho kev ua haujlwm, durability, thiab lub zog ntawm cov pob zeb tsim.
Qee qhov admixtures feem ntau siv hauv kev tsim ua vaj tse xws li dej-txo admixtures, air-entraining admixtures, thiab set-retarding admixtures.
Nws yog ib qho tseem ceeb uas yuav tsum tau siv cov khoom sib xyaw ua ke kom raug kom ntseeg tau tias cov pob zeb tsim tau zoo.
Xaus
Hauv kev xaus, cov khoom siv raw yog qhov tseem ceeb rau kev ua haujlwm zoo ntawm cov nroj tsuag batching. Nws yog ib qho tseem ceeb uas yuav tsum tau siv cov khoom siv raw zoo los xyuas kom meej tias cov pob zeb ua tau zoo. Cov khoom siv raw siv hauv kev ua vaj tse muaj xws li cement, dej, aggregates, thiab admixtures. Kev siv cov khoom lag luam zoo sib xws thiab kuaj lawv cov khoom kom ntseeg tau tias cov pob zeb tsim tau zoo.
