Qhov sib txawv tseem ceeb ntawm flakiness Performance index thiab elongation Performance index yog qhov flakiness Performance index txiav txim siab qhov concentration ntawm flaky hais nyob rau hauv ib tug qauv, whereas elongation Performance index txiav txim siab concentration ntawm elongated hais nyob rau hauv ib tug qauv.
Flakiness Performance index thiab elongation Performance index yog ob hom kev ntsuas tseem ceeb hauv kev txiav txim siab qhov concentration ntawm cov qauv muab los ntawm cov khoom uas muaj nyob hauv cov qauv.
Flakiness Index yog dab tsi?
Qhov ntsuas flakes tuaj yeem piav qhia raws li feem pua ntawm cov pob zeb hauv ib qho kev sib sau uas muaj ALD (Qhov Nruab Nrab Tsawg Tshaj) tsawg dua 0.6 npaug ntawm qhov nruab nrab qhov ntev ntawm pob zeb. Nyob rau hauv lwm yam lus, qhov Performance index tus nqi ntawm aggregates muab qhov feem pua ntawm qhov hnyav ntawm cov khoom sib sau uas muaj qhov tsawg kawg nkaus uas tsawg dua 0.6 npaug ntawm lawv qhov ntsuas qhov ntsuas.
Ntxiv mus, flaky aggregates zoo li tsim cov ntsaws ruaj ruaj uas muaj cov voids tsawg dua vim lawv nyiam ntim nruj piv rau cov khoom sib xyaw ua ke. Raws li qhov tshwm sim, cov khoom flaky xav tau tsawg dua ntawm cov binders.
Nyob rau hauv kev suav cov flakes Performance index ntawm ib qho piv txwv ntawm aggregates, peb yuav tsum nco ntsoov qhov hnyav ntawm txhua feem ntawm cov aggregates uas tau dhau los thiab khaws cia rau ntawm qhov tshwj xeeb sieve peb siv rau kev sim. Nyob rau hauv txoj kev no, peb yuav tsum tau ua tej daim ntawm aggregates dhau los ntawm lub qhov ntawm lub thickness ntawm ib tug gauge. Tom qab ntawd, peb tuaj yeem ntsuas qhov hnyav ntawm cov slots no. Kev suav ntawm qhov ntsuas flake tom qab qhov kev sim no tau muab hauv qab no:
Nyob rau hauv qhov sib npaug no, W1 yog tag nrho qhov hnyav ntawm kev sib sau, thiab W2 yog qhov hnyav ntawm cov khoom sib sau dhau los ntawm 0.6 x dmean loj sieve.
Piv txwv li, qhov ntsuas flakes ntawm cov khoom sib xyaw peb tuaj yeem siv rau hauv kev tsim kho txoj kev yog feem ntau tsawg dua 15%, thiab nws yuav tsum tsis pub tshaj 25%.
Elongation Index yog dab tsi?
Qhov ntsuas elongation tuaj yeem piav qhia raws li qhov hnyav tag nrho ntawm cov khoom khaws cia ntawm ntau qhov ntev gauges uas tau qhia raws li feem pua ntawm tag nrho qhov hnyav ntawm tus qauv. Hauv lwm lo lus, nws yog qhov feem pua los ntawm qhov hnyav ntawm cov khoom uas nws qhov loj tshaj qhov dav yuav ntau dua 1.8 npaug ntawm qhov loj me ntawm cov khoom. Peb tuaj yeem ntsuas qhov elongation Performance index ntawm cov khoom uas dhau los ntawm lub mesh loj 63 hli thiab cov khoom khaws cia ntawm lub mesh loj 6.3 hli.
Lub xub ntiag ntawm elongated aggregate particles nyob rau hauv ib tug sib tov yuav cuam tshuam lub packing ntawm hais thiab kuj tsim ntau qhov chaw. Cov khoom sib sau ua ke no muaj qhov sib piv siab ntawm thaj chaw ntawm thaj chaw rau ntim, uas yog qhov tseem ceeb hauv kev txo qis kev ua haujlwm ntawm pob zeb. Ntxiv mus, yog tias peb siv cov khoom elongated rau kev tsim kho ntawm txoj kev pavement, nws tuaj yeem ua rau kev tawg yooj yim ntawm txoj kev pavement thaum muaj qhov hnyav lossis kev ntxhov siab. Yog li ntawd, nws yog ib qho tseem ceeb heev kom to taub qhov elongation Performance index ntawm ib tug muab aggregate mix.
Peb tuaj yeem suav qhov elongation Performance index raws li hauv qab no:
Ntawm no, W1 hais txog qhov hnyav ntawm cov khoom uas tau khaws cia hauv qhov ntsuas qhov ntev, thiab W2 yog hais txog qhov hnyav ntawm tag nrho cov qauv siv rau kev xeem.
Qhov txawv ntawm Flakiness Index thiab Elongation Index yog dab tsi?
Lub flakeiness Performance index thiab elongation Performance index yog ob yam tseem ceeb ntawm indices muaj txiaj ntsig los txiav txim siab qhov concentration ntawm cov qauv muab los ntawm cov khoom uas muaj nyob hauv cov qauv. Qhov sib txawv tseem ceeb ntawm flakiness Performance index thiab elongation Performance index yog tias flakiness Performance index txiav txim siab qhov concentration ntawm flaky hais nyob rau hauv tus qauv, whereas lub elongation Performance index txiav txim siab concentration ntawm elongated hais nyob rau hauv ib tug qauv.
Cov hauv qab no infographic nthuav tawm qhov sib txawv ntawm flakiness Performance index thiab elongation Performance index nyob rau hauv daim ntawv tabular rau ib sab ntawm kev sib piv.
Summary – Flakiness Index vs Elongation Index
Flakiness Performance index yog feem pua ntawm cov pob zeb hauv ib qho kev sib sau uas muaj qhov nruab nrab qhov ntev tsawg dua 0.6 npaug ntawm qhov nruab nrab ntawm pob zeb. Elongation Performance index yog tag nrho qhov hnyav ntawm cov khoom khaws cia ntawm ntau qhov ntev gauges uas tau qhia raws li feem pua ntawm tag nrho qhov hnyav ntawm cov qauv ntsuas. Qhov sib txawv tseem ceeb ntawm flakiness Performance index thiab elongation Performance index yog tias flakiness Performance index txiav txim siab qhov concentration ntawm flaky hais nyob rau hauv ib tug qauv, whereas lub elongation Performance index txiav txim siab concentration ntawm elongated hais nyob rau hauv ib tug qauv.
