Cov Kev Xav Tau Zoo thiab Cov Qauv Ntsuas: Lub teb chaws tus qauv * GB / T 9963-2019: Kerbstones * qhia meej meej cov lus qhia zoo rau granite kerbstones. Cov ntsiab lus tseem ceeb suav nrog lub zog compressive (qhov nruab nrab tsis pub tsawg dua 100 MPa), dej nqus dej (tsis pub tshaj 0.3% lossis 0.6%, nyob ntawm cov qauv tshwj xeeb), khov -thaw tsis kam (tsis muaj kev puas tsuaj loj lossis tsis muaj xim thaum simulated freeze-thaw cycle test), thiab nto tiav (ua tau raws li cov qauv kuaj pom).
Dimensional kam rau ua thiab tsos zoo: Hais txog qhov ntev ntawm qhov kam rau ua, qhov kev tso cai yuam kev yog ± 3 hli rau qhov ntev thiab ± 2 hli rau qhov siab; cross-sectional flatness yuav tsum tau tswj kom tsawg dua lossis sib npaug li 1 mm / m kom ntseeg tau tias muaj kev txhim kho qib. Cov tsos mob yuav tsum tau ua kom cov chaw tsis muaj kab nrib pleb, chipped npoo, lossis cov fab tawg, nrog rau cov xim tsis sib xws. Cov kev txwv tshwj xeeb ntawm cov ntsiab lus radionuclide kuj tau tsim kom muaj kev nyab xeeb thaum siv.
Kev Tswj Xyuas Kev Ua Haujlwm thiab Kev Txhim Kho: Lub teb chaws tus qauv tseem qhia cov ncauj lus kom ntxaws txog kev ua thiab kev teeb tsa ntawm granite kerbstones. Thaum lub sij hawm ua, cov txheej txheem xws li txiav, sib tsoo, thiab polishing yuav tsum tau tswj nruj me ntsis kom lav cov khoom zoo. Installation specifications npog tsis xws li embedment qhov tob, kho txoj kev, thiab qhov sib nrug; cov no ua kom cov kerbstones nyob ruaj khov thiab tawg - tiv taus hauv kev pabcuam thaum tswj kev sib txuas nrog cov ntaub ntawv nyuaj (xws li cov siv hauv txoj kev thiab plazas), yog li txhim kho kev nyab xeeb thiab kav ntev.
