Cov txheej txheem:

Yuav ua li cas koj xam MPa rau pob zeb?
Yuav ua li cas koj xam MPa rau pob zeb?

Video: Yuav ua li cas koj xam MPa rau pob zeb?

Video: Yuav ua li cas koj xam MPa rau pob zeb?
Video: Cas koj thiaj ci pob zeb rau kuv zov | Kawm muas 2024, Hlis ntuj nqeg
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Compressive lub zog ntawm kho tus qauv mortar lub voos xwmfab yog xam los ntawm kev ntsuas qhov siab tshaj plaws thauj khoom siv rau lub voos xwmfab kom tawg (hauv Newtons) thiab faib tus nqi los ntawm qhov chaw hla ntu ntawm lub voos xwmfab (hauv mm^2), xam los ntawm qhov loj me. Qhov tshwm sim, tshaj tawm raws li N / mm^2 yog sib npaug rau MPa.

Yog li ntawd, dab tsi txiav txim siab MPa hauv pob zeb?

Txhais. Ib megapascal ( MPa ) yog ib qho kev ntsuas ntawm lub zog compressive ntawm pob zeb . Nws tso cai rau cov neeg soj ntsuam paub tias lub siab npaum li cas tuaj yeem siv rau pob zeb ua ntej nws tawg los yog ua tsis tau. Siab dua MPa ntawm pob zeb , cov khoom siv zog yuav muaj zog dua, thiab qhov tsawg dua nws yuav ua tsis tiav.

Ib yam li ntawd, 30 MPa pob zeb siv rau dab tsi? Siab zog Pob zeb Rau 30 MPa (nominal ntawm 28 hnub) no pob zeb kev sib xyaw yog tsim nyog rau kev tshem tawm cov kab teeb thiab cov slabs; nrog rau cov khoom precast xws li flagstones thiab hnyav-duty nto xws li rhiav pem teb.

Kuj paub, koj ua haujlwm li cas MPa?

Qhov tseeb, los ntawm kev txhais, 1 Pascal yog sib npaug rau 1 Newton/meter2, uas txhais tau tias 1 megaPascal ( MPa ) sib npaug 1,000 kiloNewtons (kN)/m2. Yog hais tias koj paub lub siab exerted rau ib tug barrier ntawm paub cheeb tsam nyob rau hauv MPa , muab faib los ntawm thaj tsam hauv square metres, thiab tom qab ntawd muab faib los ntawm 1,000 kom tau txais tag nrho cov quab yuam tawm ntawm qhov thaiv hauv kN.

Qhov siab tshaj MPa yog dab tsi?

Ib txwm Class pob zeb

  • 20 MPa thiab 25 MPa. Feem ntau siv rau hauv tsev slabs, driveways, footings thiab footpaths.
  • 32 MPa, 40 MPa, 50 MPa. Lub zog siab dua yog feem ntau siv rau cov pob zeb uas yuav muaj kev thauj khoom ntau dua thiab kev khiav tsheb.

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