Cov txheej txheem:

Puas yog pob zeb pob zeb tawg?
Puas yog pob zeb pob zeb tawg?

Video: Puas yog pob zeb pob zeb tawg?

Video: Puas yog pob zeb pob zeb tawg?
Video: Xov xwm kub - pob zeb taig hmoob tuag hnub 31/12/2020 2024, Kaum ib hlis
Anonim

Yas shrinkage pob zeb tawg

Cov chaw khoob no ua rau cov pob zeb tsis muaj zog thiab yooj yim dua rau tawg . Thaum dej yog ib qho tseem ceeb ntawm cov khoom txhua pob zeb sib tov, muaj xws li ib yam li dej ntau dhau. Thaum qhov sib tov muaj dej ntau dhau, cov slab yuav ntsws ntau dua yog tias siv cov dej kom raug.

Ua raws li qhov no hauv kev xav, nws puas yog ib txwm ua rau pob zeb slab tawg?

Raws li cov slab poob dej thaum kho nws tau me ntsis me ntsis. Raws li cov pob zeb shrinks, ua slab ua tau tawg txhawm rau txo kev ntxhov siab. Lub shrinkage tawg muaj ntau thiab tuaj yeem tshwm sim ntxov li ob peb teev tom qab qhov slab tau nchuav thiab tiav lawm. Feem ntau lawv tsis yog kev hem thawj rau cov qauv.

Tsis tas li ntawd, lub pob zeb yuav tsum tuab npaum li cas kom tsis txhob tawg? Applied-load tawg . Los tiv thaiv load-kev nyuaj siab tawg , xyuas kom tseeb tias lub slab yog tsim los ntawm ib tug uniformly compacted, zoo-drained subgrade, thiab yog tuab txaus los tiv thaiv hom kev siv nws yuav tau txais. Hauv tsev pob zeb , 4 nti yog qhov tsawg kawg nkaus tuab rau kev taug kev thiab patios.

Yog li ntawd, kuv yuav ua li cas kom kuv cov pob zeb pob zeb tsis txhob tawg?

Tiv thaiv random Cracks hauv pob zeb

  1. Tshaj dej. Cov dej ntau dhau hauv cov pob zeb sib xyaw kuj tuaj yeem ua rau qhov tshwm sim ntawm kev tawg.
  2. Kev npaj tsis zoo sub-qib. Kev npaj rau qib sub yog qhov tseem ceeb hauv kev muab lub hauv paus zoo rau koj cov pob zeb tshiab.
  3. Kev kho tsis raug.
  4. Qhov tob ntawm Joints.
  5. Lub sijhawm sib koom ua ke.
  6. Tsis txhob hnov qab kho.
  7. Sealing Joints.

Vim li cas cov pob zeb tawg tshwm?

Pob zeb expands thiab shrinks nrog kev hloov ntawm noo noo thiab kub. Zuag qhia tag nrho nyiam yog shrink. Shrinkage yog lub ntsiab ua rau tawg , thaum pob zeb hardens nws evaporates cov dej ntau dhau thiab yog li shrinks, yog li tsawg dua cov dej ntsiab lus, tsawg dua yog qhov shrinkage.

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