Tuam Txhab Xov Xwm

Ua npuas ncauj cov roj hmab khoom yog tsim los ntawm cov qauv siv tshuaj lossis roj hmab ua ke nrog cov khoom siv hauv paus kom tau daim txhuam cev-xws li cov roj hmab porous qauv khoom. Cov thev naus laus zis no tau siv nyob rau ntau lub qhov rooj ntau lawm, xws li cov ntaub qhwv tsheb thiab lub qhov rai siv gavkets, cov ntaub ntawv seismic, cov chaw tiv thaiv kev ua si, thiab lwm yam.

Feem ntau hais lus, roj hmab cov khoom lag luam yuav tsum tau yoog raws li cov pwm sib txuas, cov khoom siv roj hmab ntau dua, muaj cov pwm ua kom muaj zog yog hu ua pwm. Tsis txaus ntseeg yog ib qho tseem ceeb rau cov laj thawj tseem ceeb rau cov khoom lag luam tsis xws luag ntawm cov khoom lag luam roj hmab thiab qhov cuam tshuam rau ntau cov khoom siv tau zoo. Nws tuaj yeem ua rau tsis xws luag xws li distortion thiab ntuag ntawm qhov chaw, thiab qee yam txawm puas lub pwm, coj teeb meem rau kev tsim khoom qub. Kawm txog qhov tsis txaus ntseeg uas cuam tshuam rau cov txiaj ntsig ntawm cov khoom lag luam roj hmab yog qhov tseem ceeb tshaj plaws kom ntseeg tau tias tsis zoo, tiv thaiv kev txhuam, thiab txhim kho ntau dua.

Cov teeb meem thiab cov kev daws teeb meem hauv cov roj hmab foaming 1, tsis txaus foaming lub qhov (loj heev lossis me me-vulcanization