Nyob rau hauv ib txwm muaj xwm txheej, qhov ceev ntawm granite tsis hloov pauv ntau dhau sijhawm, tab sis nyob rau hauv qee qhov xwm txheej tshwj xeeb, nws yuav hloov pauv. Cov hauv qab no yog kev tshuaj xyuas los ntawm ntau yam:
Nyob rau hauv ib txwm muaj xwm txheej, qhov ceev yog ruaj khov
Granite yog pob zeb igneous uas muaj cov minerals xws li feldspar, quartz thiab mica, thiab nws cov txheej txheem tsim yog ntev thiab nyuaj. Tom qab nws tsim, nws cov qauv minerals sab hauv thiab cov tshuaj lom neeg muaj zog ruaj khov. Granite muaj cov qauv ntom nrog cov khoom sib xws thiab cov khoom me me. Nws cov porosity feem ntau yog 0.3% - 0.7%, thiab nws cov dej nqus feem ntau yog ntawm 0.15% thiab 0.46%. Tsuav yog nws tsis raug kev cuam tshuam los ntawm lub cev thiab tshuaj lom neeg los ntawm sab nraud, qhov kev npaj ntawm cov minerals sab hauv yuav tsis hloov pauv yooj yim, thiab qhov hnyav ib chav tsev yuav tseem nyob ruaj khov, nrog rau qhov ceev ntawm ntuj. Piv txwv li, cov khoom granite siv hauv qee lub tsev qub tau nyiaj dhau ntau pua lossis txawm tias ntau txhiab xyoo. Hauv lub xeev zoo-khaws cia, lawv qhov ceev tsis tau hloov pauv pom.
Cov xwm txheej tshwj xeeb tuaj yeem ua rau muaj kev hloov pauv ntawm qhov ceev
Kev cuam tshuam ntawm lub cev: Yog tias granite raug kev cuam tshuam los ntawm cov zog sab nraud xws li kev nias thiab kev cuam tshuam ntev, nws yuav ua rau muaj kev hloov pauv me me hauv nws cov qauv sab hauv. Piv txwv li, hauv thaj chaw uas muaj av qeeg ntau zaus, granite raug kev ntxhov siab loj heev los ntawm kev txav mus los ntawm cov pob zeb. Qhov sib txawv ntawm cov khoom hauv cov pob zeb sab hauv yuav raug nias thiab txo qis, thiab cov qhov me me uas twb muaj lawm yuav raug kaw ib nrab, ua rau muaj kev nce ntxiv ntawm cov khoom siv ib chav thiab nce qhov ceev. Txawm li cas los xij, cov kev hloov pauv no feem ntau yog me me heev thiab xav tau cov zog sab nraud muaj zog heev thiab txuas ntxiv mus.
Kev tshuaj lom neeg: Thaum granite raug rau ib puag ncig tshuaj lom neeg tshwj xeeb ntev, nws qhov ceev yuav hloov pauv. Piv txwv li, yog tias granite raug rau cov tshuaj acidic lossis alkaline ntev, qee yam ntawm nws cov khoom siv hauv av yuav raug tshuaj lom neeg nrog cov tshuaj no. Cov zaub mov zoo li feldspar thiab mica yuav raug xeb thiab yaj hauv cov chaw acidic, ua rau poob qee yam tshuaj. Qhov no ua rau muaj ntau qhov khoob hauv granite, txo qhov hnyav tag nrho, thiab yog li txo qhov ceev. Tsis tas li ntawd, thaum granite raug rau ib puag ncig noo noo nrog ntau cov pa roj carbon dioxide ntev, nws yuav raug cov tshuaj carbonation, uas tseem yuav cuam tshuam rau nws cov qauv sab hauv thiab cov khoom sib xyaw, thiab yog li cuam tshuam rau nws qhov ceev.
Kev puas tsuaj: Nyob rau hauv cov teebmeem ntuj tsim ntev xws li cua, hnub ci thiab nag, qhov chaw ntawm granite yuav maj mam tev tawm thiab lwj. Txawm hais tias kev puas tsuaj feem ntau cuam tshuam rau txheej txheej ntawm granite, raws li lub sijhawm dhau mus thiab kev puas tsuaj tob zuj zus, cov khoom siv tag nrho ntawm granite yuav ploj mus. Nyob rau hauv qhov xwm txheej uas qhov ntim tseem tsis hloov pauv lossis hloov me ntsis, qhov hnyav yuav txo qis thiab qhov ceev kuj yuav txo qis. Txawm li cas los xij, kev puas tsuaj yog ib qho txheej txheem qeeb heev thiab nws yuav siv sijhawm ntau pua lossis txawm tias ntau txhiab xyoo rau qhov ceev hloov pauv ntau.
Feem ntau, nyob rau hauv ib puag ncig thiab kev siv ib txwm muaj, qhov ceev ntawm granite tuaj yeem suav tias ruaj khov thiab tsis hloov pauv. Txawm li cas los xij, nyob rau hauv kev cuam tshuam ntawm cov khoom siv tshwj xeeb, tshuaj lom neeg thiab ntuj tsim, nws qhov ceev yuav hloov pauv mus rau qee qhov dhau sijhawm.
Lub sijhawm tshaj tawm: Tsib Hlis-19-2025