cov khoom

piav qhia luv luv:

Cov khoom siv no yog siv tshwj xeeb rau kev tsim cov txheej txheej tiv thaiv dej uas ywj pheej. Muaj zog elasticity, tuaj yeem ua tau raws li qhov kev co ntawm lub tsev me me, thiab tuaj yeem npog qhov thermal nthuav dav thiab txias contraction, tawg, subsidence thiab lwm yam ua rau muaj qhov tawg tsawg dua 8 hli; Tuaj yeem tsim ncaj qha rau ntawm qhov chaw ntub dej, txwv rau lub ces kaum thiab qhov xau nyob ib puag ncig cov kav dej; Kev nplaum zoo, cov khoom xyaw nquag hauv cov txheej txheej tuaj yeem nkag mus rau hauv qhov chaw cement ntawm cov qhov hws, cov kab nrib pleb me me thiab cov tshuaj tiv thaiv, thiab cov substrate tau koom ua ke rau hauv ib txheej ntawm cov txheej txheej tiv thaiv dej crystalline compact; Kev tiv thaiv ib puag ncig, tsis muaj tshuaj lom, tsis muaj teeb meem, tuaj yeem siv ncaj qha rau hauv kev tsim dej haus; Tiv taus acid, alkali, tiv taus kub siab, nrog kev tiv taus kev laus zoo heev thiab tiv taus corrosion zoo, tuaj yeem siv sab nraum zoov, muaj kev tiv taus huab cua zoo.