Video: Dab tsi ua rau pob zeb hauv pem teb tawg?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
Tej zaum ib leeg feem ntau vim li cas rau thaum ntxov tawg hauv pob zeb yog yas shrinkage. Thaum lub pob zeb tseem nyob rau hauv nws lub xeev yas (ua ntej hardening), nws puv dej. Cov dej no siv qhov chaw thiab ua lub slab ib qho me me. Raws li cov slab poob dej thaum kho nws tau me ntsis me ntsis.
Hauv qhov no, nws puas yog ib txwm ua rau pob zeb hauv pem teb tawg?
Kev tawg hauv Qhob Flooring Feem ntau qhov kev puas tsuaj ntawm ob qho tib si pem teb yog tshwm sim los ntawm muaj dej. Qee zaum, pob zeb tawg tuaj yeem tshwm sim sib cais los ntawm qhov muaj dej noo, txawm tias dej yuav luag ib txwm pom cov no tawg thaum kawg.
Ib sab saum toj no, kuv puas yuav tsum txhawj xeeb txog cov kab nrib pleb hauv kuv cov pob zeb ua vaj tse? Thaum twg tus saum a pob zeb slab poob dej sai heev, crazing tawg yuav yuav tshwm sim. Thaum unsightly, crazing tawg tsis yog structural kev txhawj xeeb . Hnub tshav ntuj los yog cua daj cua dub nyob qhov twg tus saum lub slab dries tawm sai dua tus hauv qab, tus saum lub pob zeb nto tuaj yeem ua crusty.
Tom qab ntawd, kuv yuav ua li cas kom kuv cov pob zeb hauv pem teb tsis txhob tawg?
Rau zam yas shrinkage, tus yuam sij yog mus khaws tus pob zeb nto ntub los ntawm npog nws nrog burlap, polyethylene sheeting los yog yas. Qhov no tseem ceeb tshwj xeeb tshaj yog nyob rau hauv huab cua huab cua xws li cua siab, kub kub lossis tshav ntuj ncaj qha.
Puas yog cov plaub hau tawg hauv cov pob zeb tshiab ib txwm muaj?
Vim pob zeb yog ib qho khoom siv nruj heev, qhov shrinking no tsim kev ntxhov siab rau lub pob zeb slab. Tshwj xeeb tshaj yog nyob rau hauv huab cua kub, shrinkage tawg tuaj yeem tshwm sim thaum ntxov li ob peb teev tom qab cov slab tau nchuav thiab ua tiav. Feem ntau, yas shrinkage tawg tsuas yog ib kab plaub hau nyob rau hauv dav thiab yog NW nyuam qhuav pom.
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
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