Homemade Cement Recipe nrog HPMC
Cov khoom xyaw:
4 qhov chaw Portland cement
4 seem xuab zeb
4 seem gravel los yog crushed pob zeb
1 feem HPMC (Hydroxypropyl Methylcellulose)
Dej (raws li xav tau)
Cov lus qhia:
Nyob rau hauv ib lub thawv loj los yog sib tov tub, muab cov Portland cement, xuab zeb, thiab gravel / crushed pob zeb hauv qhov piv ntawm 4: 4: 4.Qhov kev faib ua feem no ua kom muaj kev sib npaug sib npaug rau cov cement muaj zog thiab ruaj khov.
Ua tib zoo sib tov cov khoom xyaw qhuav ua ke siv rab chais lossis cov cuab yeej sib tov kom txog thaum lawv zoo sib xyaw thiab tsim ib qho sib xyaw.Qhov no yuav xyuas kom meej tias cov cement muaj lub zog zoo ib yam thiab kav ntev.
Hauv ib lub thawv cais, sib tov HPMC nrog dej.Qhov pom zoo feem ntau ntawm HPMC yuav tsum tau ntxiv yog feem ntau 0.2% mus rau 0.3% los ntawm qhov hnyav ntawm tag nrho cov sib tov qhuav.Xam qhov xav tau ntawm HPMC raws li qhov hnyav ntawm cov cement sib tov.Piv txwv li, yog tias koj muaj tag nrho ntawm 1 kilogram ntawm qhuav mix, koj yuav ntxiv 2 mus rau 3 grams ntawm HPMC.
Maj mam ncuav HPMC sib tov rau hauv cov khoom xyaw qhuav thaum sib tov tas li.Maj mam ntxiv dej raws li xav tau thiab txuas ntxiv sib tov kom txog thaum sib tov mus txog qhov sib xws.Ceev faj tsis txhob ntxiv dej ntau dhau, vim nws tuaj yeem ua rau cov cement tsis muaj zog.
Ua tib zoo sib tov tag nrho cov sib tov rau ob peb feeb kom txog thaum tag nrho cov khoom xyaw sib npaug sib npaug thiab qhov xav tau ua haujlwm sib xws tau ua tiav.Cov cement yuav tsum tuav nws cov duab thaum tsim rau hauv ib lub pob tab sis tseem yog malleable txaus rau daim ntawv thov yooj yim.
Thaum cov cement sib tov rau qhov xav tau sib xws, nws yog npaj rau kev siv.Siv cov cement rau qhov xav tau ntawm qhov chaw siv lub trowel, kom ntseeg tau tias txawm tias muaj kev tiv thaiv thiab compaction kom raug.
Cia cov cement los kho thiab tawv raws li cov neeg tsim khoom cov lus qhia.Qhov no feem ntau yog ua kom cov cement moist los ntawm npog nws nrog ib daim ntaub ntub dej los yog cov ntawv yas rau ob peb hnub.Kev kho kom zoo yog qhov tseem ceeb rau cov cement kom ua tiav nws lub zog siab tshaj plaws thiab kav ntev.
Nco tseg: Qhov kev faib ua feem ntawm HPMC tuaj yeem sib txawv raws li cov kev cai tshwj xeeb lossis cov lus pom zoo ntawm cov chaw tsim khoom.Nws raug nquahu kom sab laj nrog cov ntaub ntawv cov khoom lossis ncav cuag HPMC cov chaw tsim khoom kom paub meej cov lus qhia ntawm qhov tsim nyog ntawm HPMC kom ntxiv rau cov cement sib tov.
Nco ntsoov ua raws li txhua qhov kev tiv thaiv kev nyab xeeb thiab cov lus qhia thaum ua haujlwm nrog cov cement, suav nrog hnav khaub ncaws tiv thaiv, hnab looj tes, thiab tsom iav, thiab ua kom muaj cua zoo hauv thaj chaw ua haujlwm.
Txaus siab rau siv koj cov cement hauv tsev nrog cov txiaj ntsig ntxiv ntawm HPMC, uas tuaj yeem txhim kho kev ua haujlwm thiab kev ua haujlwm tag nrho hauv ntau daim ntawv thov!
