Rau ntau yam kev tsim kho, txawm tias me me, nws yog qhov yuav tsum tau ua ntej xam tus nqi ntawm cov khoom xav tau. Nws yuav tsis yooj yim rau xam cov khoom siv hauv tsev. Nws yog ib qho nyuaj me ntsis kom paub qhov yuav tsum tau ntawm cov pob zeb crushed, xuab zeb, av nplaum, cement. Kev suav ntawm cov ntaub ntawv zoo li no yuav tsum tau ua raws li lawv cov yam ntxwv. Yog li, pes tsawg tons hauv ib lub voos xwmfab ntawm cov pob zeb crushed? Tsis muaj txiaj ntsig thaum xub thawj siab ib muag, kev paub yuav muaj txiaj ntsig zoo rau txhua tus neeg uas pib tsim lawv tus kheej. Thiab txawm hais tias koj npaj yuav siv cov neeg ua haujlwm ntiav, koj tseem yuav tsum tswj hwm kev noj cov xuab zeb thiab pob zeb, vim tias koj yuav tsum them nyiaj rau nws.
Yam cuam tshuam rau kev txiav txim siab ntawm qhov loj ntawm pob zeb crushed
Yuav suav pes tsawg tons ntawm pob zeb crushed hauv ib lub voos xwmfab, cov qauv hauv qab no yuav tsum raug coj mus rau hauv tus account:
- hom pob zeb uas cov khoom tsim;
- feem ntau;
- flakiness;
- moisture absorption.
Peb yuav xav txog cov xwm txheej no hauv kab lus.
Nyob zeb zeb
Koj zaumpom tias gravel txawv. Koj yuav tsum tsis txhob delve rau hauv geology, vim hais tias cov pob zeb crushed tuaj yeem tsim los ntawm txhua lub pob zeb los ntawm kev hla nws los ntawm lub crusher. Txhua hom muaj nws tus kheej ntom, uas, nyob rau hauv lem, muaj feem xyuam rau qhov tshwj xeeb lub ntiajteb txawj nqus. Muaj ntau hom pob zeb:
- granite;
- bas alt;
- gravel;
- limestone.
Cov khoom uas los ua ntej ntawm daim ntawv yog mined nyob rau hauv quarries los ntawm cov pob zeb ntawm granite pob zeb. Nws yog tsim los ntawm kev sib tsoo tawg tau tom qab blasting. Granite crushed pob zeb muaj durability thiab ntuj xim nplai. Nws yog qhov feem ntau siv thiab siv rau kev tsim kho ntawm ntau yam qauv, lub hauv paus, txoj kev. Tsis tas li ntawd, cov khoom siv granite yog siv rau kev kho kom zoo nkauj.
Bas alt crushed pob zeb yog mined los ntawm bas alt pob zeb. Raws li nws cov yam ntxwv, cov khoom siv no yog cov neeg sib tw rau granite pob zeb. Bas alt crushed pob zeb muaj siab thermal conductivity, ceev, lub zog, Frost tsis kam. Siv los ua ib qho kev sib sau ua ke hauv kev tsim cov pob zeb hnyav, hauv kev tsim kho ntawm txoj kev, rau kev ua tiav cov tsev.
Crushed gravel yog tsim los ntawm xoob sedimentary pob zeb. Cov khoom no muaj daim ntawv ntawm rounded pebbles. Siv hauv kev tsim kho. Cov feem me me yog siv los ua cov khoom siv kho kom zoo nkauj. Gravel muaj cov khoom zoo thiab tus nqi qis.
Crushed limestone yog cov khoom siv hauv tsev tshwj xeeb uas yog mined los ntawm limestone, pob zeb sedimentary. Nws muajsiab tsis kam mus rau qhov kub thiab txias, nrog rau kev cuam tshuam tsis kam. Qhov no yog ib qho khoom siv rau ib puag ncig. Limestone crushed pob zeb yog siv nyob rau hauv kev tsim kho, txiv qaub ntau lawm. Nws kuj yog siv los ua lub ntsej muag pob zeb.
Size ntawm rubble
Txhua hom pob zeb crushed tau muab faib ua feem uas txiav txim siab nws qhov loj. Xav txog ib lub voos xwmfab nrog ib sab ntev ntawm 10 mm los yog ib lub pob nrog tib txoj kab uas hla. Thiab tam sim no - ib lub pob thiab lub voos xwmfab loj dua, piv txwv li, 20 mm. Nqa ib pawg ntawm ib thiab lwm yam, thiab ces sib tov. Raws li qhov tshwm sim, tau qhov loj me (feem feem) 10-20.
Qhov xav tau tshaj plaws los ntawm cov neeg siv khoom yog crushed granite loj 5-20. Cov khoom siv no yog siv rau kev tsim khoom ntawm kev ua vaj, paving slabs, chaw nres tsheb, nrog rau kev tsim khoom ntawm ntau yam khoom siv pob zeb. Hauv qhov no, cov neeg nyob hauv lub caij ntuj sov thiab cov tswv tsev ntawm ib tus neeg xav tau ntau npaum li cas ntawm cov pob zeb crushed ntawm feem 5-20 nyob rau hauv ib lub voos xwmfab. Peb yuav tsis thauj koj nrog kev suav, tab sis peb yuav muab qhov ntsuas nruab nrab ntawm qhov hnyav volumetric. Rau ib feem ntawm cov pob zeb crushed, nws yog 1.38 t / m 3.
Thaum thawj theem ntawm kev tsim kho ntawm ntau yam khoom, siv lub pob zeb loj dua. Nws tuaj yeem yog granite crushed pob zeb 20-40 loj. Nws yog siv rau backfilling nkag mus rau qhov chaw tsim kho, foundations. Txhawm rau muab cov khoom siv hauv tsev nrog cov khoom siv no, nws yuav tsum paub tias muaj pes tsawg tons ntawm cov pob zeb crushed ntawm feem 20-40 nyob rau hauv ib lub voos xwmfab. Qhov hnyav ntawm lub pob zeb no yog 1.41 t / m 3.
Rau txoj kev rov qab thiab qhov chaw uas xav tau cov khoom hnyav,crushed pob zeb 40-70 loj yog siv. Tshwj xeeb tshaj yog feem ntau nws yog siv rau kev npaj cov chaw tsim kho ntawm cov dej xau. Nws tsis yooj yim los xam seb muaj pes tsawg tons ntawm cov pob zeb crushed ntawm feem 40-70 nyob rau hauv ib lub voos xwmfab. Txawm li cas los xij, tsis txhob nkim sijhawm rau kev suav. Granite crushed pob zeb muaj qhov nruab nrab volumetric hnyav ntawm 1.47 t / m 3.
Crushed pob zeb 25-60 hauv qhov loj yog siv hauv kev tsheb ciav hlau, kev lag luam, kev tsim vaj tsev, hauv kev tsim cov pob zeb loj loj. Cov neeg siv ib txwm siv cov khoom siv no rau ntau lub tsev xav paub ntau npaum li cas ntawm cov pob zeb crushed ntawm feem 25-60 nyob rau hauv ib lub voos xwmfab. Peb teb: hauv ib lub cubic meter muaj 1.38 tons ntawm pob zeb loj.
Flakiness (zoo li) yog ib qho tseem ceeb tsis tau coj mus rau hauv tus account thaum txiav txim siab pes tsawg tons ntawm pob zeb crushed nyob rau hauv ib lub voos xwmfab. Qhov ntom ntawm qhov ntim ntawm qhov ntim yog nyob ntawm seb cov khoom zoo li cas - lamellar, koob-shaped lossis cuboid. Yuav kom tsis txhob overspending ntawm cov ntaub ntawv yooj yim thiab rau denser filling, nws yog tsim nyog los yuav crushed pob zeb nrog ib tug flakiness ntawm tsis ntau tshaj 15%.
dej saturation
Dej saturation yog ib qho kev ntsuas uas cuam tshuam rau cov pob zeb loj. Cov khib nyiab ntau, qhov ntsuas no siab dua. Qhov nruab nrab feem pua, nyob ntawm seb hom pob zeb crushed, ncav cuag 10%. Dej saturation ntawm littered khoom ncav cuag 100% los yog ntau tshaj. Tsis tas yuav yuav pob zeb uas zoo li cov khib nyiab: qias neeg lossis nrog cov xuab zeb ntau. Ntxiv rau qhov hnyav dua, cov khoom zoo li no tuaj yeem ua tauua los ntawm cov khoom siv pov tseg. Nws raug nqi tsawg.
Specific Gravity (SG)
Txhua yam ntawm cov saum toj no, ob qho tag nrho thiab tus kheej, cuam tshuam rau kev txiav txim siab ntawm pes tsawg tons ntawm pob zeb crushed nyob rau hauv ib lub voos xwmfab. Cov duab no sib txawv me ntsis hauv thaj chaw sib txawv thiab huab cua. Yog hais tias koj xav kom nws tus kheej xam lub volumetric luj ntawm crushed pob zeb, muab lub cubes los ntawm ib tug yam ntawm 1.4 thiab tau tons. Nws kuj yog ib qho yooj yim los txhais lwm txoj kev nyob ib ncig ntawm. Yog tias koj muaj ntau ntau hauv tons, faib nws los ntawm 1, 4 - thiab tau txais lub peev xwm cubic raws li qhov tshwm sim.
