Video: Puas yog lub tsev slabs muaj cov pob qij txha expansion?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
Expansion pob qij txha yog tag nrho-dav txiav ntsia rau hauv kev cob qhia hauv pem teb thiab phab ntsa uas tso cai rau cov pob zeb nthuav dav thiab cog lus yam tsis muaj kev sib tsoo. Lawv cais qhov sib txawv ntawm cov slab yog li ntawd tag nrho slab tuaj yeem txav mus yam tsis tau straining qee qhov ntau dua li lwm tus.
Ib yam nkaus, puas yuav tsum tau nthuav dav ntxiv?
Pavement expansion pob qij txha tsuas yog xav tau thaum: txoj kev hauv av tau muab faib ua cov vaj huam sib luag ntev (60 ft (18 m) lossis ntau dua) yam tsis muaj kev cog lus pob qij txha hauv-nruab nrab. Lub pavement yog tsim thaum ambient kub qis dua 40F (4C). Qhov contraction pob qij txha raug tso cai nkag mus los ntawm cov ntaub ntawv loj uas nkag tsis tau.
Ib yam li ntawd, puas yog lub pob zeb ua vaj tse xav tau cov pob qij txha txuas ntxiv? Expansion pob qij txha muab tso rau hauv qhov chaw ua ntej lub qhob yog nchuav. Cov pob qij txha nthuav dav yog siv los tso cai rau lub slab kom txav mus thiab tsis muab kev ntxhov siab rau txhua yam uas nws abuts. Yog koj muaj qhob txoj kev tsheb, txoj kev taug, lossis patio tshwm sim rau tawg dhau sijhawm, muaj ntau yam uas koj tuaj yeem ua tau ua kom ntev lub neej ntawm lub ncuav.
Kuv puas xav tau kev tswj cov pob qij txha hauv pob zeb pob zeb?
Hauv lwm lo lus, yog tias pob zeb ua crack-koj xav rau muaj lub luag haujlwm tseem ceeb hauv kev txiav txim siab qhov twg yuav tawg thiab hais tias nws yuav tawg nyob rau hauv ib txoj kab ncaj ncaj es tsis txhob ntawm random. Qhov chaw pob qij txha kom raug. Qhov chaw pob qij txha (hauv ko taw) tsis ntau tshaj 2-3 npaug ntawm slab thickness (hauv nti). AW 4 slab yuav tsum muaj cov pob qij txha 8-12 ko taw sib nrug.
Yuav nrug deb npaum li cas yuav tsum nthuav cov pob qij txha?
Muab pob zeb ua ke expansion pob qij txha yog ib kauj ruam tsim nyog thaum txhim kho pob zeb slabs vim lawv cia chav rau kev txav mus los . Cov lus qhia nyob deb nruab nrab cov pob qij txha nthuav dav yog 10 ko taw. Lawv yuav tsum muab tso rau tsawg kawg qhov no kaw ua ke kom ntseeg tau tias cov pob zeb pob zeb tsis tawg lossis tawg.
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