Dab tsi yog limestone ua los ntawm

Limestone yog ib lub pob zeb uas tsim los ntawm ntau lab xyoo dhau los ntawm cov kab mob hauv hiav txwv prehistoric xws li coral thiab plhaub tawg. Cov kab mob no tau sau rau hauv dej hiav txwv hauv pem teb thiab tau ntim los ntawm cov txheej txheem ntawm cov xuab zeb, ua rau cov pob zeb uas peb paub niaj hnub no.
 

Lub hauv paus tseem ceeb ntawm limestone yog calcium carbonate, ib qho ntxhia uas pab tsim cov plhaub thiab pob txha hauv hiav txwv creatures. Cov ntxhia no kuj yog cov khoom tseem ceeb hauv chalk thiab marble. Ntxiv rau calcium carbonate, limestone kuj tseem muaj qee yam impurities xws li av nplaum, xuab zeb, thiab cov khoom siv organic. Txawm li cas los xij, cov impurities no tsis cuam tshuam los ntawm kev siv ntau ntawm limestone hauv kev tsim kho, kev ua liaj ua teb, thiab kev lag luam.

Limestone yog ntau yam khoom siv hauv tsev uas tau siv ntau pua xyoo hauv kev tsim vaj tsev, txoj kev, thiab monuments. Nws cov kav ntev, kev zoo nkauj tsis tu ncua, thiab kev ntxhib los mos ua rau nws yog qhov kev xaiv nrov rau architects thiab builders.

Ntxiv mus, limestone yog ib qho tseem ceeb hauv kev ua liaj ua teb, muab cov calcium rau cov nroj tsuag uas tseem ceeb rau lawv txoj kev loj hlob thiab kev loj hlob. Nws kuj tseem siv rau hauv kev tsim cov cement, ntawv, thiab lwm yam khoom siv.

Hauv kev xaus, limestone yog ib qho tseem ceeb thiab ntau yam khoom siv ntuj tsim uas tau pab txhawb kev loj hlob ntawm tib neeg kev vam meej. Nws ntau yam kev siv thiab cov txiaj ntsig ua rau nws yog ib qho tseem ceeb ntawm cov khoom siv hauv ntau yam lag luam thiab ib feem tseem ceeb ntawm peb lub neej.