Hnub no, hauv kev tsim kho, ntiag tug thiab kev lag luam, pob zeb thiab pob zeb crushed muaj ntau heev, qhov sib txawv ntawm ob cov ntaub ntawv no tuaj yeem pom tsuas yog peb xav txog cov yam ntxwv ntawm txhua tus. Kev siv pob zeb thiab cov ntxhia hauv kev tsim kho tsuas yog irreplaceable. Txawm tias muaj tseeb hais tias cov ntaub ntawv piav qhia muaj tib lub hauv paus chiv keeb, lawv muaj ntau qhov sib txawv. Ntawm lwm yam, saib ntawm lawv, koj tuaj yeem pom qhov sib txawv ntawm qhov pom. Nrog rau kev kawm tob txog qhov teeb meem, ib tus tsis tuaj yeem tsis nco qab txog thaj tsam ntawm \u200b\u200buse.
Gravel nta
Yog tias koj muaj lub siab xav nkag siab txog cov khoom thiab cov yam ntxwv ntawm cov khoom siv ntuj, ces koj tuaj yeem delve rau hauv nws keeb kwm. Qhov kev xaiv no yog lub pob zeb uas yog tsim los ntawm txoj kev sedimentary. Lub gravel yog heev friable, thiab kuj muaj interspersed minerals los ntawm ib tug nyuaj puas. Peb ntau yam tuaj yeem paub qhov txawv, ntawm lawv: nplua-grained, nruab nrab, thiab cov khoom loj. Thawj ntau yam muaj cov ntsiab lus uas nws loj txawv ntawm 1 txog 1.25millimeters. Cov pob zeb loj nruab nrab tsis pub tshaj 5 millimeters, xws li kev suav nrog loj, lawv qhov ntev yog 10 millimeters. Xav txog gravel thiab crushed pob zeb, qhov sib txawv ntawm cov uas yuav tau piav nyob rau hauv tsab xov xwm, nws yog tsim nyog hais txog cov thawj hom, uas tej zaum yuav muaj ib tug txawv qhov chaw ntawm keeb kwm. Yog li, muaj pas dej, roob, hiav txwv, glacial, thiab cov khoom siv dej.
siv thaj chaw
Yog tias xav tau los muab qhov zoo tshaj plaws tuav thaum lub sijhawm tsim kho, ces koj yuav tsum nyiam lub roob ntxhia, thaum dej thiab hiav txwv muaj qhov smoother. Qhov no yog vim txhua yam impurities los ntawm hom av, xuab zeb, thiab lwm yam. Cov yam ntxwv no qhia tau hais tias lub roob ntau yam feem ntau siv thaum lub sij hawm tsim kho. Nws yog siv thaum lub sij hawm kev tsim kho ntawm txoj kev, raws li ib tug muab tub lim, rau backfilling qhov chaw, raws li zoo raws li thaum sib tov pob zeb mortar los tsim ib lub hauv paus. Yog tias koj txiav txim siab xav txog pob zeb thiab pob zeb crushed (qhov txawv), koj tuaj yeem pom cov duab ntawm cov ntaub ntawv no hauv kab lus.
Ntau yam
Ntawm kev muag khoom koj tuaj yeem nrhiav pob zeb ntawm ntau yam xim, nws tuaj yeem yog xim av, paj yeeb, daj lossis xiav. Cov yam ntxwv no ua rau nws tuaj yeem nrhiav kev siv cov pob zeb hauv av no rau kev kho kom zoo nkauj. Yog tias tsim nyog, nws tuaj yeem siv los kho thaj chaw ua liaj ua teb.
Ntse pob zeb crushed
Nws txawv ntawm cov khoom siv saum toj no feem ntau hauv cov yam ntxwv sab nraud. Yog liYog li, pob zeb crushed muaj ib tug rougher nto, ntxiv rau, nws muaj ntse ces kaum. Qhov ntev ntawm cov khoom no feem ntau tshaj qhov ntev ntawm cov pob zeb. Nws yog mined los ntawm crushing limestone, granite thiab pob zeb. Ntuj roughness txhawb nqa zoo adhesion rau nto thiab lwm yam ntaub ntawv. Qhov no nthuav cov peev txheej ntawm cov ntxhia hauv kev xyaum. Yog tias koj tab tom xav txog gravel thiab crushed gravel, qhov sib txawv ntawm cov ntaub ntawv no tau piav qhia hauv tsab xov xwm. Qhov ntev ntawm lub tom kawg txiav txim siab qhov Scope. Yog hais tias cov ntsiab lus tsis pub tshaj 5 millimeters, ces nws yog siv nyob rau hauv tsim ntawm qhov chaw, txoj kev, thiab kuj rau kev tiv thaiv tiv thaiv dej khov.
Nrog qhov ntau thiab tsawg ntawm 5 mus rau 10 millimeters, cov khoom siv yog siv hauv kev tsim cov pob zeb thiab tsim cov slabs. Yog hais tias cov khoom muaj ib feem ntawm 10 mus rau 20 millimeters, ces cov khoom siv yuav siv tau nyob rau hauv lub tsim ntawm roadbeds, creation ntawm lub hauv paus rau lub tsev rau ntau yam hom phiaj, raws li zoo raws li nyob rau hauv tus txheej txheem ntawm lub tsev choj. Cheebtsam los ntawm 20 mus rau 40 millimeters feem ntau yog siv nyob rau hauv kev tsim ntawm hnyav thiab complex qauv. Yog tias xav tau kev txhim kho txoj kev tsheb los yog tsim ib lub tsev ntau-storey, ces feem ntau ntawm 40 mus rau 70 millimeters yog siv. Thaum ua haujlwm kho kom zoo nkauj, crushed pob zeb qhov ntau thiab tsawg ntawm 70 mus rau 120 millimeters yog siv. Xav txog gravel thiab crushed pob zeb, qhov sib txawv ntawm uas yog pom tseeb, nws yog tsim nyog sau cia hais tias tom kawg ntxhia yog yus muaj los ntawm zoo heev zog, raws li zoo raws li tsis kam mus rau tsawg kub. Cov khoom yuav yograu cov pab pawg sib txawv, uas nyob ntawm qhov ntsuas ntawm Frost resistance.
Qhov txawv ntawm cov zaub mov
Txawm hais tias ob qho tib si cov ntaub ntawv muaj tib lub hauv paus, lawv tau siv ntau yam hauv kev tsim kho thiab ua tiav. Thawj qhov uas koj yuav tsum tau them sai sai rau thaum sib piv gravel thiab crushed pob zeb yog qhov sib txawv ntawm qhov loj. Nws yog ib qho tseem ceeb uas yuav tsum tau hais txog lub peev xwm ua raws li qee yam khoom siv.
Gravel hais txog qhov zoo tshaj plaws yog qhov qis dua rau nws tus nrog sib tw. Nws yog vim li no tias cov ntxhia no feem ntau siv hauv kev tsim kho. Lub cev daim ntawv ntawm rubble kuj tseem hu ua cov tswv yim. Cov dav hlau thiab cov ces kaum ntawm lub pob zeb pab txhawb kom zoo dua compaction. Cov khoom no muaj peev xwm sau tag nrho cov voids. Yog tias koj txiav txim siab xaiv gravel, koj tuaj yeem tsis meej pem ntawm roob thiab granite ntau yam. Nws yog qhov nyuaj heev kom nkag siab vim qhov zoo sib xws ntawm cov khoom ntawm cov qib sib txawv. Txawm li cas los xij, ntau hom pob zeb muaj qhov sib txawv uas koj yuav tsum xav txog thaum yuav.
Qhov txawv ntawm kev tsim khoom thiab tsuas
Thaum xav txog pob zeb thiab pob zeb crushed, koj yuav tsum pom qhov sib txawv ntawm ob cov ntxhia no thiab tshwj xeeb tshaj yog tsim thiab rho tawm. Thawj cov khoom siv ntuj tsim yog xoob xoob tawg tawg uas tsis muaj qhov qhia meej meej. Pob zeb tuaj yeem tsim tshwj xeeb hauv cov xwm txheej ntuj, thaum lub sijhawm kev puas tsuaj ntawm pob zeb ib ntus. Yog hais tias lub pob zeb muaj ib feem ntau tshaj 80 millimeters, ces nws yog crushed rau hauvrubble. Lub hiav txwv thiab dej hom ntawm cov ntxhia no muaj ib tug ntau sloping nto, vim li no nws yog tsis tshua muaj siv nyob rau hauv kev tsim kho. Feem ntau, ib txoj hauv kev yog siv rau kev tsuas, uas suav nrog kev sau ntawm ib qho chaw ntawm lub pob zeb uas nyob ntawm qhov chaw. Hauv qhov no, siv cov txheej txheem tshwj xeeb. Yog tias tsim nyog, cov pob zeb yuav raug ua ntxiv, uas suav nrog kev tshuaj xyuas, ntsuas, thiab ntxuav. Xav txog gravel thiab crushed pob zeb, qhov sib txawv ntawm uas tau piav nyob rau hauv tsab xov xwm, koj yuav tsum coj mus rau hauv tus account tias thawj cov ntaub ntawv tsis muaj txawv teb chaws impurities precisely vim hais tias cov ntxhia undergoes dag dag, uas frees nws los ntawm impurities xws li av, av nplaum thiab xuab zeb. Yog li ntawd, nws muaj peev xwm tau txais gravel, uas yog freed los ntawm sedimentary impurities.
Qhov txawv ntxiv
Qhov txawv ntawm pob zeb thiab pob zeb crushed kuj yog thawj hom pob zeb qhia pom muaj txhua yam pob zeb. Vim li no, nws yog ib qho tsim nyog los ntsuas lub zog thiab tiv thaiv qhov kub thiab txias los ntawm kev ua ntau yam qauv, thaum yooj yim destructible thiab tsis muaj zog grains koom nrog hauv cov txheej txheem.
Crushed pob zeb ntau lawm nta
Pob zeb thiab pob zeb crushed, qhov sib txawv, cov duab uas koj tuaj yeem nyeem thiab xav txog hauv kab lus, yog tsim thiab mined nyob rau hauv ntau txoj kev. Piv txwv li, crushed pob zeb yog tau los ntawm stripping, tom qab uas crushing tshuab tuaj rau hauv kev ua si. Hom tom kawg yog txiav txim siab los ntawm qhov zoo ntawm cov khoom kawg. Thaum lub sij hawm tsim cov txheej txheem, crushed pob zeb yuav tau, nyob rau hauv uas muaj ib tug tej yam npaum li cas ntawm ca nplej. Qhov me me lawv ntim muaj nyob rau hauv ntau, ntauib qho ntxhia yog suav tias yog qhov zoo.
