Video: Nws yuav tsum tau kub npaum li cas rau ncuav qhob?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
ntawm 50-60 ° F.
Hais txog qhov no, nws puas zoo rau ncuav pob zeb hauv huab cua txias?
Tsis txhob ncuav pob zeb tshaj hauv av khov, daus, lossis dej khov. Qhob hauv huab cua txias pom zoo kom muaj qhov qis qis, thiab dej tsawg heev rau cement ratio, txo los ntshav thiab txo lub sij hawm teem. Siv pob zeb kho daim pam tiv thaiv khov thiab khaws cov pob zeb ntawm qhov zoo curing kub.
Ib sab saum toj no, qhov tsawg kawg nkaus thiab qhov siab tshaj plaws ntawm pob zeb yog dab tsi? Qhob Kub txwv
| Qhov loj me ntawm cov seem, cm | Qhov ntsuas kub tsawg kawg ntawm cov pob zeb tau muab tso rau thiab khaws cia thaum lub sijhawm tiv thaiv, ° C |
|---|---|
| Tsawg dua 30.48 | 12.77 |
| 30.48 txog 91.44 | 10 |
| 91.44 rau tsawg dua 182.88 | 7.22 |
| Ntau tshaj 182.88 | 4.44 |
Xav txog qhov no, puas yuav kho pob zeb ntawm 40 degrees?
Rau siab-thaum ntxov zog pob zeb uas yuav tsis raug rau lub voj voog khov-thaw, ib hnub ntawm qhov kub siab tshaj 40 degrees yog txaus. Tab sis a pob zeb foundation lossis lwm yam qauv uas yuav nqa cov khoom hnyav thaum muaj hnub nyoog ntxov yuav tsum tau 20 hnub lossis ntau dua ntawm qhov ntsuas kub tsawg kawg ntawm 50 qib.
Koj puas tuaj yeem ncuav pob zeb hauv qab 32 degrees?
Pob zeb yuav tsum tsis txhob muab tso rau hauv khov subgrade. Yog tias kev cia siab tias khov, qhov subgrade yuav tsum tau tiv thaiv thiab nws qhov kub thiab txias tau nce mus txog qhov khov. Feem ntau qhov no txhais tau hais tias siv li ntawm 6 hauv. Cov ntaub ntawv lawv tus kheej yuav tsum sov dua 32 degrees F tab sis tsis sov tshaj qhov pob zeb tias yuav muab tso tawm tsam lawv.
Pom zoo:
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