Nyob rau hauv cov txheej txheem ntawm kev tsim cov raj mis yas, kev nyab xeeb thiab kev ntseeg tau yog ob qho kev txiav txim siab tseem ceeb. Cov hwj yas siv rau cov khoom ntim xws li khoom noj, tshuaj, thiab tshuaj pleev ib ce. Yog li ntawd, tus qauv tsim zoo xav tau kom ntseeg tau tias cov khoom ua raws li cov qauv kev nyab xeeb thiab kev ntseeg tau thiab ntseeg tau lub sijhawm siv.
Firstly, cov khoom siv xaiv ntawm cov hwj yas yas yog lub hauv paus rau kev ua kom muaj kev nyab xeeb thiab kev ntseeg tau. Khoom Noj Khoom Haus Qib Polyethylene (PE) thiab polypropylene (PP) yog cov khoom siv yas ntim rau hauv cov khoom noj ntim khoom, nrog kev nyab xeeb corrosion zoo thiab kev nyab xeeb rau zaub mov. Ib qho ntxiv, cov txheej thiab cov ntaub ntawv luam tawm rau saum npoo ntawm cov qauv kev nyiam tu kom ntseeg tau tias cov khoom lag luam tsis paug cov khoom ntim khoom.
Qhov thib ob, kev tsim qauv yas yuav tsum tau them sai sai rau kev sib khi thiab kev tiv thaiv dhau mus. Khoom noj khoom haus, tshuaj, tshuaj pleev ib ce, thiab lwm yam uas yuav tsum ua kom nruj rau kev sib kis, oxidation, thiab evapation. Yog li ntawd, lub raj mis lub qhov ncauj tsim thiab hau qauv ntawm cov hwj yas yuav tsum tau muab cov khoom sib khi thiab xau kev ua tau zoo. Tsim nyog tsim qauv thiab cov txheej txheem tuaj yeem ua kom pom tseeb tias cov hwj yas yuav tsis xau lossis txeej thaum siv, yog li ua kom muaj kev nyab xeeb thiab kev nyab xeeb ntawm cov khoom.
Thaum kawg, tus tsim ntawm cov hwj yas yuav tsum xav txog cov khoom lag luam compressive thiab thermal kuj. Thaum lub sijhawm thauj mus los thiab chaw cia khoom, cov raj ntaub yas yuav raug rau sab nraud siab thiab kub nyhuv. Yog li ntawd, cov qauv tsim ntawm cov hwj yas yuav tsum ua kom ntseeg tau tias cov khoom muaj cov teeb meem muaj teeb meem xws li deformation, to taub lub cev muaj zog.
Hauv ntej, kev nyab xeeb thiab kev ntseeg tau ntawm lub raj mis yas tsim yog qhov tseem ceeb hauv kev ua kom cov khoom zoo thiab cov neeg tau txais kev txaus siab. Los ntawm cov khoom tsim tsim nyog xaiv, kev tsim qauv thiab cov qauv tsim qauv, raws li cov khoom siv hluav taws xob, ua kom tau txais kev nyab xeeb ntawm cov neeg siv khoom, thiab txhim kho lub npe nrov thiab kev sib tw.
