Pob Tawb: Phau Ntawv Qhia Uitimate rau Beginner

Pob zeb yog cov khoom siv ntau yam thiab ruaj khov uas yog siv rau hauv ntau hom kev tsim kho. Txawm hais tias koj yog tus nyiam DIY lossis tus kws tshaj lij kev tsim kho, nws yog ib qho tseem ceeb kom muaj kev nkag siab zoo ntawm cov pob zeb thiab nws cov khoom. Hauv phau ntawv qhia qhov kawg no rau cov neeg pib tshiab, peb yuav tham txog txhua yam koj yuav tsum paub txog pob zeb, suav nrog nws yog dab tsi, nws ua li cas, hom pob zeb, thiab lub luag haujlwm ntawm cellulose ether hauv pob zeb.

Qhob yog dab tsi?

Pob zeb yog sib tov ntawm cov cement, dej, aggregates (xws li xuab zeb, gravel, los yog crushed pob zeb), thiab ntau yam tshuaj additives. Thaum cov khoom xyaw no sib xyaw ua ke, muaj tshuaj lom neeg cov tshuaj tiv thaiv tshwm sim, ua rau cov khoom siv tawv thiab ruaj khov. Lub zog thiab durability ntawm cov pob zeb yog nyob ntawm qhov zoo thiab proportions ntawm cov khoom xyaw siv.

Lub pob zeb ua li cas?

Cov txheej txheem ntawm kev ua vaj tse muaj ob peb kauj ruam. Thawj kauj ruam yog sib tov cov cement, dej, thiab aggregates nyob rau hauv qhov proportions kom tsim tau ib tug muab tshuaj txhuam. Cov muab tshuaj yog muab tso rau hauv pwm los yog formwork thiab tso cai rau harden los yog kho. Thaum cov pob zeb tau kho lawm, cov pwm los yog formwork raug tshem tawm, thiab cov pob zeb tau npaj siv.

Hom Qhob:

Muaj ntau ntau hom pob zeb, txhua tus nrog nws cov khoom tshwj xeeb thiab kev siv. Qee yam ntawm cov pob zeb ntau tshaj plaws yog:

1. Lub cev muaj zog zoo li qub: Lub zog zoo li qub yog cov pob zeb ntau tshaj plaws siv hauv kev tsim kho. Nws muaj lub zog compressive ntawm 2500-5000 psi.
2. High Strength Concrete: Cov pob zeb muaj zog yog siv rau hauv cov ntawv thov uas yuav tsum muaj lub zog siab dua. Nws muaj lub zog compressive ntawm 10,000-20,000 psi.
3. Lightweight Concrete: Lub teeb yuag yog siv rau hauv cov ntawv thov qhov hnyav yog qhov kev txhawj xeeb. Nws yog tsim los ntawm kev sib xyaw ua ke xws li nthuav shale, av nplaum, lossis slate.
4. Self-Compacting Concrete: Self-compacting pob zeb yog hom tshwj xeeb ntawm cov pob zeb uas ntws thiab compacts ntawm nws tus kheej, tsis tas yuav muaj kev vibration.
5. Fiber-Reinforced Concrete: Fiber-reinforced qhob yog ib hom pob zeb uas muaj fiber ntau ntxiv, xws li steel, iav, lossis hluavtaws fibers, los txhim kho nws cov khoom.

Lub luag haujlwm ntawm Cellulose Ether hauv pob zeb:

Cellulose ether yog ib qho tshuaj ntxiv uas feem ntau siv hauv pob zeb los txhim kho nws cov khoom. Nws yog cov dej-soluble polymer uas tuaj yeem muab ntxiv rau cov pob zeb sib xyaw kom txhim kho nws txoj haujlwm ua haujlwm, txo cov dej nqus dej, thiab ua kom nws lub zog thiab kav ntev.

Qee txoj hauv kev uas cellulose ether tuaj yeem txhim kho cov khoom ntawm pob zeb yog:

1. Txhim kho kev ua haujlwm: Cellulose ether tuaj yeem txhim kho kev ua haujlwm ntawm cov pob zeb sib xyaw, ua kom yooj yim rau qhov chaw thiab ua tiav.
2. Txo cov dej nqus dej: Cellulose ether tuaj yeem txo cov dej nqus los ntawm cov pob zeb, ua rau nws tiv taus ntau dua rau lub voj voog khov-thaw thiab txo qhov kev pheej hmoo ntawm kev tawg.
3. Ua kom muaj zog thiab ua haujlwm ntev: Cellulose ether tuaj yeem ua kom lub zog thiab ua haujlwm ntev ntawm cov pob zeb, txhim kho nws cov kev tiv thaiv kev puas tsuaj, cuam tshuam, thiab tshuaj tua kab mob.
4. Enhanced Adhesion: Cellulose ether tuaj yeem txhim kho qhov adhesion ntawm cov pob zeb mus rau lwm qhov chaw, txhim kho nws daim ntawv cog lus lub zog thiab txo qhov kev pheej hmoo ntawm delamination.

Xaus:

Hauv kev xaus, pob zeb yog cov khoom siv ntau yam thiab ruaj khov uas yog siv rau ntau yam kev tsim kho. Kev nkag siab txog cov khoom ntawm pob zeb thiab lub luag haujlwm ntawm cellulose ether hauv nws qhov kev ua tau zoo yog qhov tseem ceeb rau txhua tus neeg ua haujlwm nrog pob zeb. Los ntawm kev xaiv qhov zoo ntawm cov pob zeb thiab sib xyaw cellulose ether rau hauv kev sib xyaw, koj tuaj yeem txhim kho kev ua haujlwm, lub zog, thiab ua haujlwm ntev ntawm koj cov pob zeb ua vaj tse.