Cov yam ntxwv ntawm asphalt pavement tiv thaiv kev saib xyuas
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Cov yam ntxwv ntawm asphalt pavement tiv thaiv kev saib xyuas
Sijhawm tso tawm:2023-11-09
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Synchronous gravel sealing tshuab tau raug txhawb nqa thiab siv hauv tsev thiab txawv teb chaws. Nws yog ib qho kev siv nyiaj txiag thiab kev tu vaj tse zoo. Lub tsheb sib tsoo synchronous gravel sealing yog siv los nthuav cov asphalt binder (hloov asphalt, emulsified asphalt, thiab lwm yam) thiab ib qho me me pob zeb (feem ntau siv 4 mus rau 6 hli, 6 mus rau 10 hli) ntawm txoj kev nto ib txhij, thiab tom qab ntawd dhau mus. cov roj hmab log tsheb rau cov menyuam compactor Los yog lub ntuj dov ntawm cov tsheb ua ib txheej ntawm asphalt gravel pavement. Nws tuaj yeem kho cov kab nrib pleb, txo cov pavement reflective tawg, thiab txhim khu kev hnav. Cov zaj duab xis asphalt tsim rau ntawm txoj kev nto tuaj yeem tiv taus qhov nkag ntawm cov dej saum npoo av. Nws muaj lub sijhawm tsim kho luv luv, thev naus laus zis yooj yim, thiab muaj zog siv tau. Tam sim no, lub synchronous gravel seal txheej feem ntau yog siv rau hauv kev tiv thaiv kev saib xyuas ntawm txoj kev loj, txoj kev loj loj, lub nroog thiab lub nroog txoj kev, thiab tseem tuaj yeem siv rau hauv lub hauv paus hnav txheej ntawm txoj kev tshiab thiab cov txheej txheem qis ntawm txoj kev txhim kho. Thaum cov nyiaj tsim kho nruj, nws tuaj yeem siv los ua txoj kev hloov pauv rau txoj kev loj qis.
Thaum lub sij hawm kev tsim kho tshwj xeeb, cov thev naus laus zis no feem ntau tsom rau cov txheej txheem sab saud, thaum cov txheej txheem sealing sab saud thiab cov txheej hnav feem ntau tsis quav ntsej, ua rau poob ntawm cov peev txheej. Nyob rau hauv xyoo tas los no, thev naus laus zis xws li micro-surfacing thiab ultrasonic abrasion tau txuas ntxiv mus. Nyob rau hauv tus txheej txheem ntawm kev tiv thaiv kev txij nkawm ntawm asphalt txoj kev, sealing tshuab feem ntau yog siv. Feem ntau siv technologies muaj xws li kub thiab txias nyias txheej npog thiab tawg sealing. txheej thiab ntau lwm yam. Qhov kev xaiv tseem ceeb ntawm sealing txheej tshuab rau asphalt pavement yog ib txhij asphalt gravel sealing txheej. Cov tshuab no tuaj yeem txuag tau tus nqi ntawm qhov project. Tsis tas li ntawd, txij li cov tshuab no tau siv nyob rau hauv Fabkis thaum kawg ntawm lub xyoo pua 20th, nws tau nthuav dav mus rau Tebchaws Meskas thiab Europe. Lub teb chaws, suav nrog ob peb hauv Asia, Africa, thiab Australia, kuj tau pib siv cov thev naus laus zis no hauv cov haujlwm tshwj xeeb. Cov ntaub ntawv qhia tau hais tias tsuas yog li 5% ntawm cov haujlwm nyob sab Europe tsis siv cov thev naus laus zis no los tiv thaiv kev saib xyuas txoj kev. Tam sim no, thaum siv cov tshuab sealing no hauv peb lub tebchaws, cov kev cai hauv qab no yuav tsum tau ua tiav.
(1) Cov kev xav tau sib sau ua ke. Txhawm rau tiv thaiv kev hnav thiab tsim kua muag ntawm lub tsheb thaum lub sijhawm ua haujlwm loj, cov pavement aggregates yuav tsum muaj qhov nyuaj txaus. Tshwj xeeb tshaj yog nyob rau hauv cov ntaub ntawv ntawm cov tsheb thauj mus los hnyav thiab lub tsheb thauj khoom, kev xaiv ntawm kev sib sau ua ke ua kom pom tseeb dua; qhov gradation feem ntau tsis tov nrog hmoov. Siv ib hom gradation; Thaum xaiv cov aggregates, nco ntsoov siv lub voos xwmfab zoo los tiv thaiv cov tsos ntawm tus pin-type flakes thiab xyuas kom txaus embedding ntawm cov aggregate hauv asphalt.
(2) Asphalt. Kev xaiv asphalt yuav tsum xub ua kom tau raws li qhov yuav tsum tau muaj rau kev xaiv asphalt uas tau teev tseg los ntawm txoj kev loj. Raws li qhov ua tau raws li cov lus qhia tshwj xeeb, emulsified, hloov kho, roj hmab, lossis roj av asphalt zoo tib yam tuaj yeem xaiv.
(3) Cov khoom siv. Thaum siv cov pob zeb sealing tshuab rau kev saib xyuas txoj kev, cov pob zeb yuav tsum tau ua kom nruj, thiab lub pob zeb yuav tsum tau them tag nrho los ntawm asphalt kom tiv thaiv kev hnav thiab tsim kua muag ntawm txoj kev los ntawm lub log. Thaum cov khoom sib kis ntau dhau lawm, cov asphalt binder yuav raug nyem tawm ntawm qhov khoob hauv cov pob zeb thaum lub tsheb dov hla txoj kev, thiab cov roj saum npoo yuav tshwm sim, yog li txo qhov kev sib txhuam thiab kev sib txhuam ntawm txoj kev; Txawm li cas los xij, yog tias cov pob zeb sib kis me me dhau, cov pob zeb tsis tuaj yeem sib txuas tau zoo, thiab cov pob zeb yuav raug pov tawm ntawm txoj kev.
Hauv cov ntsiab lus, kev siv asphalt ib txhij gravel sealing tshuab muaj qhov ua tau zoo heev. Nws tuaj yeem tsis tsuas yog tiv thaiv dej tsub zuj zuj ntawm txoj kev, txhim kho lub zog shear ntawm txoj kev, tab sis kuj tseem txhim khu kev ua tau zoo ntawm txoj kev nyob rau hauv qis thiab kub kub. Lub siab tawg tiv thaiv tiv thaiv asphalt nto los ntawm kev puas tsuaj los ntawm kev yaig lossis tawg. Cov thev naus laus zis no nthuav tawm cov kev hloov pauv asphalt thiab cov pob zeb ua tau zoo sib npaug ntawm txoj kev nyob rau tib lub sijhawm kom ntseeg tau tias muaj kev sib xyaw ua ke ntawm ob qho tib si thiab txhim kho cov nplaum thiab lub zog ntawm ob. Tsis tas li ntawd, cov cuab yeej no muaj txiaj ntsig zoo, yooj yim, txuag cov peev txheej thiab cov nqi, thiab muaj peev xwm ua tau zoo. Nyob rau tib lub sijhawm, vim muaj kev xav tau siab rau cov khoom siv sib xws, cov nqi ua haujlwm raug txo qis heev. Yog li ntawd, txoj kev no tuaj yeem txhawb nqa los txhim kho qhov kev sib tsoo thiab kev ua haujlwm ntawm kev ua haujlwm ntawm asphalt ntau li ntau tau.