Hauv lub ntiaj teb ntawm cov khoom siv sib dhos ua kom raug, qhov tseem ceeb ntawm kev muaj lub hauv paus ruaj khov thiab ruaj khov tsis tuaj yeem hais ntau dhau. Txhua qhov kev hloov pauv me me ntawm qhov tseeb ntawm lub rooj tuaj yeem ua rau muaj qhov tsis zoo thiab tsis sib xws - thaum kawg ua rau poob nyiaj thiab lub sijhawm ntau. Vim li no, lub rooj granite zoo yog ib qho ntawm cov peev txheej zoo tshaj plaws uas cov chaw tsim khoom tuaj yeem ua kom lawv cov haujlwm khiav tau zoo thiab ua haujlwm tau zoo. Hauv tsab xov xwm no, peb yuav tham txog qhov zoo ntawm cov rooj granite rau cov khoom siv sib dhos ua kom raug.
Ua ntej, cov rooj granite muab qhov tiaj tiaj thiab ruaj khov zoo kawg nkaus. Vim yog pob zeb uas tshwm sim ntuj, granite muaj zog thiab ntom ntom heev, ua rau nws muaj peev xwm tiv taus qhov hnyav thiab kev co. Qhov no txhais tau tias txawm tias muaj cov yam ntxwv sab nraud xws li kev txav ntawm tus neeg teb xov tooj thiab kev co ntawm lub tshuab, lub rooj tseem ruaj khov thiab tsis cuam tshuam, ua rau kev ua haujlwm raug. Tsis tas li ntawd, cov nplaim granite raug tsim los kom meej thiab tiaj tus, pab cov chaw tsim khoom ua tiav kev sib xws hauv lawv cov khoom siv ua haujlwm. Yog li ntawd, cov rooj granite ua ib qho tseem ceeb hauv kev ua kom zoo dua qub, txuag lub sijhawm muaj nqis, thiab cov nqi.
Lwm qhov zoo ntawm cov rooj granite yog lawv txoj kev tiv thaiv thermal expansion. Raws li lub pob zeb ntuj, granite yog ob qho tib si thermally ruaj khov thiab tsis-conductive. Tsis zoo li cov rooj hlau lossis yas, granite tsis distort lossis nthuav dav vim muaj kev hloov pauv ntawm qhov kub thiab txias, yog li muab qhov yuav luag xoom drift hauv qhov tseeb ntawm qhov ntau ntawm qhov kub thiab txias. Qhov kev tiv thaiv thermal expansion no kuj txhais tau tias cov khoom siv contraction thiab nthuav dav tsis ua rau lub rooj puas tsuaj tag nrho kev ruaj khov thiab qhov tseeb, ua rau nws yog kev nqis peev txhim khu kev qha hauv lub sijhawm ntev.
Cov rooj granite kuj tseem muaj kev tiv thaiv zoo heev rau kev xeb ntawm cov tshuaj lom neeg. Kev siv cov tshuaj lom neeg thaum lub sijhawm sib dhos ua ke yog qhov tshwm sim ntau hauv kev lag luam tsim khoom. Cov rooj granite tiv taus cov tshuaj lom neeg, vim tias qhov chaw tsis muaj qhov thiab ntom ntom txo qhov kev pheej hmoo ntawm kev puas tsuaj ntawm qhov chaw lossis xeb piv rau lwm cov ntaub ntawv xws li yas. Ntxiv mus, cov khoom siv tsis teb rau cov chaw acidic, ua kom lub rooj ruaj khov hauv cov xwm txheej ua haujlwm hnyav.
Cov rooj granite kuj yooj yim rau kev saib xyuas. Yuav kom siv tau ntev, lawv yuav tsum tau saib xyuas tsawg kawg nkaus txog kev ntxuav. Vim nws qhov chaw ruaj khov, granite feem ntau tiv taus cov xim thiab kev sib sau ua ke ntawm cov khib nyiab. Ib daim ntaub so yooj yim nrog daim ntaub ntub dej txaus los kho qhov chaw ntawm lub rooj kom huv si yam tsis tas yuav siv cov txheej txheem ntxuav kim heev. Qhov no txhim kho kev ua haujlwm zoo, txuag lub sijhawm, thiab txo cov nqi kho ntawm cov khoom siv.
Thaum kawg, cov rooj granite muab qhov zoo nkauj zoo nkauj hauv cov khoom siv sib dhos precision. Txawm hais tias qhov zoo nkauj yuav tsis nyob rau sab saum toj ntawm daim ntawv teev npe tseem ceeb, qhov zoo no tsis tuaj yeem tsis quav ntsej. Cov rooj granite muab qhov zoo nkauj thiab zoo nkauj rau cov khoom siv, ua rau qhov zoo ntawm cov khoom tsim tawm. Ntxiv mus, qhov zoo nkauj kuj tseem tuaj yeem ua lub luag haujlwm tseem ceeb hauv kev txhawb cov neeg ua haujlwm thiab qhia txog lub tuam txhab txoj kev cog lus rau qhov zoo.
Xaus lus, cov txiaj ntsig ntawm lub rooj granite zoo tsis tuaj yeem hais ntau dhau hauv cov txheej txheem tsim khoom ntawm cov khoom siv sib dhos. Los ntawm nws qhov kev ua tau zoo heev, tiv taus kev nthuav dav thermal, tiv taus tshuaj lom neeg, yooj yim txij nkawm, thiab zoo nkauj - cov txiaj ntsig no ua rau cov rooj granite yog qhov kev nqis peev zoo heev hauv kev ua kom muaj kev ua haujlwm sib xws, txuag lub sijhawm thiab nyiaj txiag hauv cov txheej txheem tsim khoom.
Lub sijhawm tshaj tawm: Kaum Ib Hlis-16-2023