Ntev npaum li cas ua ntej koj tuaj yeem tsav ntawm pob zeb

Title: Ntev npaum li cas ua ntej koj tuaj yeem tsav ntawm pob zeb

(Ntev npaum li cas ua ntej koj tuaj yeem tsav ntawm pob zeb)

Taw qhia

Pob zeb yog ib qho khoom siv zoo kawg thiab ruaj khov uas tau siv dav hauv kev tsim kho rau ntau pua xyoo. Thaum nws tuaj yeem siv los tsim kev, choj, cov tsev, thiab lwm yam qauv, nws kuj tuaj yeem ua nkig thaum raug huab cua txias xws li qhov kub thiab txias, av noo, los yog ya raws. Hauv tsab xov xwm no, peb yuav tham txog yuav siv sij hawm ntev npaum li cas rau kev ua vaj tse rau hnub nyoog thiab degrade lub sij hawm, cia peb nkag siab zoo dua nws cov khoom thiab cov kev txwv.

Kev laus thiab degradation ntawm pob zeb

Raws li kev muaj hnub nyoog, nws poob lub zog thiab yoog raws vim muaj tshuaj lom neeg ntawm nws cov khoom. Tus nqi ntawm cov hnub nyoog pob zeb nyob ntawm ntau yam, suav nrog qhov kub thiab txias, noo noo cov ntsiab lus, kho lub sijhawm, thiab raug rau tej yam khoom xws li ntsev, dej, thiab huab cua huab cua phem heev.

Nyob rau hauv chav tsev kub (20°C), pob zeb feem ntau muaj hnub nyoog ntawm tus nqi ntawm ib nti ib xyoos. Txawm li cas los, raws li cov pob zeb tau raug rau qhov kub thiab txias dua los yog cov ntsiab lus noo noo, nws yuav ua kom nws cov txheej txheem kev laus, ua rau lub sijhawm luv luv kom txog thaum nws mus txog qhov tshwj xeeb ntawm degradation.

Qhov degree ntawm degradation uas tshwm sim thaum lub sij hawm kev laus nws txawv nyob ntawm seb hom pob zeb siv. Piv txwv li, Cov pob zeb raug rho tawm haujlwm tsis tshua muaj kev tawg thiab tawg dua li cov pob zeb qhuav qhuav. Raws li qhov tshwm sim, Cov pob zeb raug rho tawm feem ntau ua rau nws cov txheej txheem kev laus qeeb qeeb, siv ob peb xyoos lossis ntau xyoo dhau los kom ncav cuag nws qhov xwm txheej kawg.

Kub thiab noo noo ntsiab lus

Tus nqi ntawm cov pob zeb muaj hnub nyoog kuj nyob ntawm seb cov dej noo nyob hauv qhov sib tov. Thaum cov pob zeb sib xyaw nrog dej, nws undergoes cov tshuaj tiv thaiv uas ua rau cov pa me me npuas tsim nyob rau hauv qhov sib tov. Qhov no tsim ib qho porosity uas tso cai rau cov pob zeb nthuav dav thiab cog lus nyob rau hauv siab, nce nws tag nrho lub zog.

Raws li qhov kub thiab txias nce, tus nqi ntawm cov pob zeb muaj hnub nyoog qeeb. Qhov no yog vim hais tias cov tshuaj tiv thaiv ntawm cov cement thiab dej tau dhau los ua cov lus tshaj tawm, ua rau cov sib tov ua cohesive ntau dua thiab tsis tshua muaj kev tawg thiab tawg.

Ntxiv rau qhov kub thiab noo noo, hom pob zeb siv kuj cuam tshuam rau nws lub hnub nyoog thiab degradation tus nqi. Qee hom pob zeb muaj kev tiv thaiv ntau dua rau kev tawg thiab tawg dua li lwm tus, ua rau lawv zoo dua rau kev siv sab nraum zoov qhov twg kub hloov pauv thiab noo noo theem yuav tseem ceeb dua.

Kho lub sij hawm

Lub sij hawm kho ntawm pob zeb yog lub sij hawm thaum nws solidifies tom qab nws tau nchuav rau hauv av los yog lwm yam nruab nrab. Lub sijhawm no nyob ntawm ntau yam, suav nrog hom kev ua vaj tse tshwj xeeb, cov dej noo nyob rau hauv qhov sib tov, thiab kub thaum lub sij hawm curing txheej txheem.

Thaum pob zeb raug tso cai kho kom tiav, nws yuav nyuaj thiab ruaj khov. Txawm li cas los, yog tsis kho kom zoo, cov cement yuav hnov ​​​​mob nrog ya raws thiab oxygen hauv huab cua, ua rau nws tawg thiab tso cov tshuaj phem.

Xaus

(Ntev npaum li cas ua ntej koj tuaj yeem tsav ntawm pob zeb)

Hauv kev xaus, Lub hnub nyoog pob zeb thiab degradation yog cov txheej txheem nyuaj uas nyob ntawm ntau yam. Thaum nws muaj peev xwm ncua qhov pib ntawm cov txheej txheem no los ntawm kev sib xyaw thiab kho kom zoo, Nws yog ib qho tseem ceeb kom nco ntsoov tias pob zeb yog cov khoom siv ruaj khov heev uas tseem tuaj yeem ua tsis tau raws li qhov xwm txheej hnyav. Los ntawm kev nkag siab txog hnub nyoog thiab degradation tus nqi ntawm pob zeb, cov kws kes duab vajtse, engineers, thiab cov neeg cog lus tuaj yeem txiav txim siab paub ntau ntxiv thaum xaiv thiab tsim cov khoom siv rau lawv cov haujlwm.
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