Yuav ua li cas kom sib tov zoo?

Kev sib xyaw ua ke kom zoo yog qhov tseem ceeb los xyuas kom meej lub zog, durability, thiab kev ua haujlwm ntawm cov khoom kawg.Ntawm no yog ib daim ntawv qhia step-by-step ntawm yuav ua li cas kom sib tov pob zeb:

1. Sau cov khoom siv thiab khoom siv:

• Portland cement
• Aggregates (xuab zeb, gravel, los yog crushed pob zeb)
• Dej
• Cov thawv sib xyaw (lub log, pob zeb sib tov, lossis sib xyaw tub)
• Cov cuab yeej ntsuas (lub thoob, shovel, lossis sib tov paddle)
• Cov iav tiv thaiv ( hnab looj tes, tsom iav kev nyab xeeb, thiab daim npog ntsej muag)

2. Xam cov feem:

• Txiav txim siab qhov kev faib ua feem ntawm cov cement, aggregates, thiab dej raws li qhov xav tau kev sib xyaw ua ke tsim, kev xav tau ntawm lub zog, thiab daim ntawv thov.
• Kev sib xyaw ua ke feem ntau suav nrog 1: 2: 3 (cement: xuab zeb: aggregate) rau lub hom phiaj dav dav thiab 1: 1.5: 3 rau kev siv zog dua.

3. Npaj qhov sib tov:

• Xaiv lub tiaj tus, theem saum npoo rau kev sib xyaw ua vaj tse kom ruaj khov thiab yooj yim ntawm kev tuav.
• Tiv thaiv thaj chaw sib xyaw los ntawm cua thiab ncaj qha tshav ntuj, uas tuaj yeem ua rau kom qhuav ntxov ntxov ntawm cov pob zeb.

4. Ntxiv cov khoom xyaw qhuav:

• Pib los ntawm kev ntxiv qhov ntsuas ntawm cov khoom xyaw qhuav (cement, xuab zeb, thiab aggregate) rau hauv lub thawv sib tov.
• Siv lub duav los yog sib tov paddle los muab cov khoom xyaw qhuav kom huv si, kom ntseeg tau tias kev faib tawm tsis sib xws thiab tsis txhob sib cais.

5. Maj mam ntxiv dej:

• Maj mam ntxiv dej rau qhov sib tov qhuav thaum sib xyaw ua ke kom ua tiav qhov xav tau sib xws.
• Tsis txhob ntxiv dej ntau dhau, vim tias cov dej ntau dhau tuaj yeem ua rau cov pob zeb tsis muaj zog thiab ua rau muaj kev sib cais thiab shrinkage tawg.

6. Sib tov zoo:

• Sib tov lub pob zeb kom huv si kom txog thaum tag nrho cov khoom xyaw sib npaug sib npaug thiab qhov sib tov muaj qhov sib xws.
• Siv lub duav, hoe, los yog sib tov paddle los tig lub pob zeb, kom ntseeg tau tias tag nrho cov hnab ntim qhuav tau muab sib xyaw thiab tsis muaj cov khoom siv qhuav.

7. Txheeb xyuas qhov sib xws:

• Ntsuam xyuas qhov sib xws ntawm cov pob zeb los ntawm kev nqa ib feem ntawm qhov sib tov nrog lub duav lossis cov cuab yeej sib tov.
• Lub pob zeb yuav tsum muaj qhov ua tau zoo sib xws uas tso cai rau nws yooj yim tso, molded, thiab ua tiav yam tsis muaj kev poob qis lossis kev sib cais.

8. Kho raws li xav tau:

• Yog tias cov pob zeb qhuav dhau lawm, ntxiv cov dej me me thiab rov ua kom txog thaum qhov kev xav tau ua tiav.
• Yog tias cov pob zeb ntub dhau lawm, ntxiv cov khoom xyaw qhuav ntxiv (cement, xuab zeb, lossis sib sau) los kho qhov sib xyaw ua ke.

9. Txuas Ntxiv:

• Sib tov cov pob zeb rau lub sijhawm txaus los xyuas kom meej qhov sib xyaw ntawm cov khoom xyaw thiab ua kom cov cement hydration.
• Lub sij hawm sib tov tag nrho yuav nyob ntawm seb qhov loj me, kev sib xyaw, thiab cov kev cai tshwj xeeb ntawm cov pob zeb sib xyaw tsim.

10. Siv tam sim ntawd:

• Thaum sib tov, siv cov pob zeb ua kom sai los tiv thaiv kev teeb tsa ntxov ntxov thiab xyuas kom muaj kev tso npe thiab sib sau ua ke.
• Tsis txhob ncua sij hawm hauv kev nchuav lossis thauj cov pob zeb mus rau qhov chaw uas xav tau kom muaj peev xwm ua haujlwm tau zoo thiab ua tiav kev txhim kho lub zog zoo.

11. Cov cuab yeej sib xyaw kom huv:

• Tom qab siv, ntxuav cov thawv sib xyaw, cov cuab yeej, thiab cov cuab yeej siv tam sim ntawd txhawm rau tiv thaiv kev tsim vaj tse thiab xyuas kom lawv nyob twj ywm hauv qhov zoo rau kev siv yav tom ntej.

Los ntawm kev ua raws li cov kauj ruam no thiab ua raws li cov txheej txheem sib xyaw kom raug, koj tuaj yeem ua tiav cov pob zeb sib xyaw zoo uas ua tau raws li cov qauv kev xav tau rau koj qhov kev tsim kho.