Video: Dab tsi yog qhov sib xyaw rau pob zeb?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
Qhov sib xyaw ua ke ntawm 1 feem ntawm cement, 3 qhov chaw xuab zeb , thiab 3 qhov sib sau ua ke yuav tsim kev sib xyaw ua ke ntawm kwv yees li 3000 psi. Sib tov dej nrog cov cement, xuab zeb , thiab pob zeb yuav tsim ib qho muab tshuaj txhuam uas yuav khi cov ntaub ntawv ua ke kom txog thaum sib tov hardens.
Tsis tas li lo lus nug yog, dab tsi yog qhov sib xyaw kom raug rau pob zeb hauv lub hauv paus?
A qhob mix ntawm 1 feem cement: 2 qhov chaw xuab zeb: 4 qhov sib xyaw ua ke (los ntawm ntim) yuav tsum tau siv rau footings. Pob zeb yuav tsum muab tso rau hauv ib nrab ib teev ntawm sib tov.
Tom qab ntawd, lo lus nug yog, qhov piv ntawm cov xuab zeb gravel thiab cement rau pob zeb yog dab tsi? Ib txwm piv yog 1 part cement ,,2 ntu xuab zeb , thiab 3 ntu pob zeb (luv lo lus ib feem rau duav, thoob, lossis lwm yam khoom siv ntsuas). # Pib ntxiv dej rau hauv qhov sib tov maj mam, sib tov tsis tu ncua kom txog thaum nws dhau los ua yas txaus los tso rau hauv koj daim ntawv.
Ua li no, 1 2 3 mix yog dab tsi?
Pob zeb yog tsim los ntawm cov cement, xuab zeb , gravel thiab dej . Hauv kev ua kom muaj zog, cov no cov khoom xyaw Feem ntau yuav tsum tau muab sib xyaw rau hauv qhov sib piv ntawm 1: 2: 3: 0.5 kom ua tiav lub zog siab tshaj plaws. Qhov ntawd yog 1 feem cement, 2 ntu xuab zeb 3 qhov chaw gravel, thiab 0.5 feem dej.
C35 qhob mix ratio yog dab tsi?
1:1.5:2.5 ( Cement /Sand / Fine Aggregate) rau c35 ua qib pob zeb.
Pom zoo:
Yuav ua li cas yog qhov tsawg kawg nkaus pob zeb npog nyob rau hauv mm ntawm ib tug cam khwb cia nyob rau hauv qhov chaw pob zeb tso tawm tsam thiab mus tas li raug rau lub ntiaj teb?
Table-1: Yam Tsawg Npog Thickness rau Cast-in-Place Qhob Hom kev tsim ua vaj tse hla, hli Qhob nrum tiv thaiv thiab txuas mus tas li nrog hauv av 75 Pob zeb sib chwv nrog av lossis dej No. 19 txog No. 57 tuav 50 No. 16 bar thiab me dua 40
Dab tsi yog qhov siab tshaj plaws rau lub pob zeb pob zeb?
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Dab tsi yog pob zeb uas muaj qhov sib xyaw ntawm hydrocarbons hu ua?
Pob zeb uas muaj qhov sib xyaw ntawm hydrocarbons hu ua. Roj Shale
Dab tsi yog qhov sib xyaw zoo tshaj plaws rau pob zeb?
Lwm 'txoj cai qub ntawm tus ntiv tes xoo' rau kev sib xyaw ua vaj tse yog 1 cement: 2 xuab zeb: 3 gravel los ntawm ntim. Sib tov cov khoom xyaw qhuav thiab maj mam ntxiv dej kom txog thaum lub pob zeb ua haujlwm. Qhov sib tov no yuav tsum tau hloov kho nyob ntawm qhov sib xyaw siv los muab cov pob zeb ua haujlwm zoo
Dab tsi yog qhov sib xyaw zoo tshaj plaws rau cov pob zeb pob zeb?
Kev sib xyaw ua ke ntawm 1 feem ntawm cov cement: 2 qhov chaw xuab zeb: 4 qhov sib xyaw ua ke (los ntawm ntim) yuav tsum tau siv rau kev taw qhia. Cov pob zeb yuav tsum tau muab tso rau hauv ib nrab ib teev ntawm kev sib tov.Brickwork - Muab koj cov pob zeb tso rau hauv koj lub trench