Peb paub tias lub hauv paus txheej ntawm bitumen pavement muab faib ua semi-rigid thiab nruj. Txij li thaum lub hauv paus txheej thiab txheej txheej yog cov khoom siv sib txawv, kev sib txuas zoo thiab lub zog txuas ntxiv ntawm ob yog tus yuam sij rau kev xav tau ntawm hom pavement no. Tsis tas li ntawd, thaum txoj kev taug kev bitumen pom dej, feem ntau ntawm cov dej yuav mloog zoo rau ntawm qhov sib koom ua ke ntawm qhov chaw thiab lub hauv paus txheej, ua rau muaj kev puas tsuaj rau cov pavement bitumen xws li grouting, loosening, thiab potholes. Yog li ntawd, ntxiv cov txheej txheem qis rau ntawm lub hauv paus semi-rigid lossis nruj yuav ua lub luag haujlwm tseem ceeb hauv kev txhim kho lub zog, ruaj khov thiab tsis muaj peev xwm ntawm cov txheej txheem pavement. Peb paub tias cov cuab yeej siv ntau dua yog siv cov thev naus laus zis ntawm synchronous chip sealer tsheb.

Lub luag hauj lwm ntawm cov txheej txheem qis ntawm lub synchronous nti sealer tsheb

1. Interlayer kev sib txuas
Nws muaj qhov sib txawv ntawm qhov sib txawv ntawm cov pavement bitumen thiab semi-rigid lossis rigid puag raws li cov qauv, cov ntaub ntawv muaj pes tsawg leeg, kev tsim kho tshuab thiab lub sijhawm. Objectively, ib tug zawv zawg nto yog tsim ntawm txheej txheej thiab lub hauv paus txheej. Tom qab ntxiv cov txheej txheem qis dua, cov txheej txheem saum npoo thiab txheej txheej tuaj yeem ua tiav zoo.

2. Hloov load
Lub bitumen nto txheej thiab semi-rigid lossis rigid puag txheej ua si sib txawv hauv cov txheej txheem pavement.
Cov txheej txheej bitumen feem ntau ua lub luag haujlwm ntawm kev tiv thaiv plam, tsis muaj dej, tiv thaiv suab nrov, tiv thaiv plam thiab tawg, thiab hloov pauv mus rau hauv paus.
Yuav kom ua tiav lub hom phiaj ntawm kev thauj mus los, yuav tsum muaj kev sib txuas ntxiv ntawm cov txheej txheej saum npoo thiab txheej txheej, thiab qhov kev txuas ntxiv no tuaj yeem pom tau los ntawm qhov kev txiav txim ntawm cov txheej sealing qis (cov nplaum nplaum, txheej permeable).

3. Txhim kho txoj kev ntog zog
Lub modulus ntawm resilience ntawm bitumen nto txheej yog txawv los ntawm cov semi-rigid los yog rigid puag txheej. Thaum lawv ua ke ua ke nyob rau hauv load, qhov kev ntxhov siab diffusion hom ntawm txhua txheej yog txawv, thiab deformation kuj txawv. Nyob rau hauv lub ntsug load thiab lateral cuam tshuam quab yuam ntawm lub tsheb, Lub nto txheej yuav muaj ib tug displacement nyiam mus rau lub hauv paus txheej. Yog tias kev sib txhuam sab hauv thiab adhesion ntawm txheej txheej nws tus kheej thiab khoov thiab tensile kev ntxhov siab nyob rau hauv qab ntawm txheej txheej tsis tuaj yeem tiv taus qhov kev ntxhov siab no, cov txheej txheej saum npoo yuav muaj teeb meem xws li thawb, rutting, lossis txawm loosening thiab tev, yog li ntawd yuav tsum muaj zog ntxiv los tiv thaiv qhov kev txav ntawm interlayer. Tom qab cov txheej txheem qis dua ntxiv, cov kev sib txhuam tsis sib haum thiab kev sib koom ua ke los tiv thaiv kev txav mus los tau nce ntawm cov khaubncaws sab nraud povtseg, uas tuaj yeem ua haujlwm ntawm kev sib txuas thiab kev hloov pauv ntawm rigidity thiab yooj, yog li cov txheej txheej saum npoo, txheej txheej, txheej cushion thiab cov av hauv paus tuaj yeem tiv thaiv cov load ua ke. Yuav kom ua tiav lub hom phiaj ntawm kev txhim kho tag nrho lub zog ntawm txoj kev pavement.

4. Waterproof thiab anti-seepage
Nyob rau hauv ntau txheej txheej ntawm txoj kev loj bitumen pavement, tsawg kawg ib txheej yuav tsum yog I-type densely graded bitumen qhob sib tov. Tab sis qhov no tsis txaus, vim hais tias ntxiv rau cov qauv tsim, kev tsim kho ntawm asphalt pob zeb tseem cuam tshuam los ntawm ntau yam xws li bitumen zoo, cov khoom siv pob zeb, pob zeb cov khoom specifications thiab proportions, asphalt ratio, mixing thiab paving khoom, dov kub, thiab lub sijhawm dov. Kev cuam tshuam. Keeb kwm, lub compactness yuav tsum zoo heev thiab cov dej permeability yuav luag xoom, tab sis cov dej permeability feem ntau yog siab dhau heev lawm vim tsis ua hauj lwm ntawm ib tug tej yam txuas, yog li cuam tshuam rau lub anti-seepage peev xwm ntawm bitumen pavement. Nws txawm cuam tshuam rau kev ruaj ntseg ntawm bitumen pavement nws tus kheej, lub hauv paus thiab cov av hauv paus. Yog li ntawd, thaum lub bitumen nto nyob rau hauv ib tug rainy cheeb tsam thiab qhov khoob yog loj thiab cov dej seepage yog loj, lub sab sealing txheej yuav tsum tau paved nyob rau hauv lub bitumen nto.

Txoj kev tsim kho ntawm synchronous sealing tsheb nyob rau hauv sealing

Lub hauv paus ntsiab lus ua haujlwm ntawm synchronous gravel seal yog siv cov cuab yeej siv tshwj xeeb - synchronous chip sealer lub tsheb los txau cov bitumen kub thiab cov pob zeb huv si qhuav ntawm txoj kev yuav luag tib lub sijhawm, thiab cov bitumen thiab pob zeb ua tiav hauv ib qho lub sij hawm luv luv. Ua ke, thiab tsis tu ncua ntxiv dag zog rau lub zog hauv qab kev ua haujlwm ntawm cov khoom siv sab nraud.

Synchronous nti sealers siv tau ntau hom bitumen binders: Softened ntshiab bitumen, polymer SBS hloov bitumen, emulsified bitumen, polymer hloov emulsified bitumen, diluted bitumen, thiab lwm yam. Tam sim no, cov txheej txheem feem ntau siv nyob rau hauv Suav teb yog los ua kom sov zoo tib yam kub bitumen rau. 140 ° C los yog tshav kub SBS hloov bitumen rau 170 ° C, siv ib tug bitumen kis tau tusyees tshuaj tsuag cov bitumen rau saum npoo ntawm lub hauv paus rigid lossis semi-rigid, thiab tom qab ntawd kis cov sib npaug sib npaug. Cov aggregate yog limestone gravel nrog qhov loj me ntawm 13.2 ~ 19mm. Nws yuav tsum huv, qhuav, tsis muaj huab cua thiab impurities, thiab muaj ib tug zoo particle zoo. Tus nqi ntawm cov pob zeb crushed yog nruab nrab ntawm 60% thiab 70% ntawm thaj chaw paving.
Tus nqi ntawm bitumen thiab aggregate yog 1200kg·km-2 thiab 9m3·km-2 raws li qhov hnyav. Kev tsim kho raws li txoj kev npaj no yuav tsum muaj qhov tseeb ntawm cov tshuaj bitumen txau thiab sib sau ua ke, yog li yuav tsum tau siv cov cuab yeej ua haujlwm bitumen macadam synchronous sealing tsheb rau kev tsim kho. Nyob rau saum npoo ntawm cov cement-stabilized macadam puag uas tau muab txau los ntawm txheej, cov tshuaj tsuag yog li 1.2 ~ 2.0kg·km-2 ntawm cov bitumen kub los yog SBS hloov bitumen, thiab tom qab ntawd ib txheej ntawm crushed bitumen nrog ib tug ib tug particle loj yog tusyees kis rau nws. Qhov luaj li cas ntawm cov pob zeb thiab pob zeb yuav tsum sib npaug ntawm qhov loj me ntawm asphalt pob zeb ua rau ntawm txheej tsis muaj dej. Qhov chaw sib kis yog 60-70% ntawm tag nrho cov pavement, thiab tom qab ntawd stabilized nrog cov roj hmab log tsheb rau 1-2 zaug los tsim. Lub hom phiaj ntawm kev sib kis pob zeb nrog ib qho loj me me yog los tiv thaiv cov txheej txheem dej los ntawm kev puas tsuaj los ntawm cov log tsheb ntawm kev tsim kho tsheb xws li cov tsheb thauj khoom thiab cov crawler lem ntawm bitumen paver thaum lub sij hawm tsim kho, thiab tiv thaiv cov hloov bitumen los ntawm melted los ntawm siab. kub huab cua thiab kub asphalt sib tov. Kev tuav lub log yuav cuam tshuam rau kev tsim kho.
Raws li txoj cai, cov pob zeb crushed tsis nyob rau hauv kev sib cuag nrog ib leeg. Thaum cov asphalt sib tov yog paving, qhov kub-kub sib tov yuav nkag mus rau qhov sib txawv ntawm cov pob zeb crushed, ua rau cov hloov bitumen zaj duab xis kom sov thiab yaj. Tom qab dov thiab compacting, lub pob zeb dawb crushed ua Cov pob zeb bitumen yog embedded nyob rau hauv qab ntawm cov txheej txheem bitumen los ua ib tug tag nrho nrog nws, thiab ib tug "roj nplua nuj txheej" txog li 1.5cm yog tsim nyob rau hauv qab ntawm lub structural. txheej, uas tuaj yeem ua lub luag haujlwm ntawm cov txheej txheem dej tsis zoo.

Cov teeb meem xav tau kev saib xyuas thaum tsim kho

(1) Txhawm rau tsim ib qho kev sib npaug thiab sib npaug-thickness bitumen zaj duab xis los ntawm kev txau rau hauv daim ntawv pos huab, zoo tib yam kub bitumen yuav tsum tau rhuab mus rau 140 ° C, thiab qhov kub ntawm SBS hloov bitumen yuav tsum siab tshaj 170 ° C.
(2) Kev tsim kho qhov kub thiab txias ntawm cov txheej txheem bitumen yuav tsum tsis txhob qis dua 15 ° C, thiab kev tsim kho tsis raug tso cai thaum muaj cua daj cua dub, huab cua hnyav lossis hnub los nag.
(3) Lub thickness ntawm bitumen zaj duab xis yog txawv thaum qhov siab ntawm lub nozzle sib txawv (qhov sib tshooj ntawm cov kiv cua zoo li pos nphuab txau los ntawm txhua lub nozzle sib txawv), thiab cov thickness ntawm cov zaj duab xis bitumen yog haum thiab sib xws los ntawm kev kho cov qhov siab ntawm lub nozzle.
(4) Lub synchronous gravel sealing lub tsheb yuav tsum khiav ntawm qhov tsim nyog thiab nrawm nrawm. Nyob rau hauv cov ntaub ntawv no, qhov sib kis tus nqi ntawm cov khoom siv pob zeb thiab cov binder yuav tsum sib phim.
(5) Tom qab hloov kho bitumen thiab gravel yog sprinkled (sib cais), phau ntawv kho los yog patching yuav tsum tau nqa tawm tam sim ntawd, thiab kho yog qhov pib, kawg taw tes, longitudinal sib koom, tuab heev, nyias los yog tsis sib xws.
(6) Xa ib tus neeg tshwj xeeb los tuav lub xyoob broom kom ua raws li lub tsheb sib dhos synchronous chip sealing, thiab cheb cov pob zeb crushed sab nraum qhov dav ntawm paving (uas yog, qhov dav ntawm bitumen kis) rau hauv paving dav nyob rau hauv lub sij hawm, los yog ntxiv ib qho baffle los tiv thaiv cov pob zeb crushed Popup Pave Width.
(7) Thaum twg cov khoom siv ntawm lub tsheb sib dhos synchronous chips sealing lub tsheb raug siv lawm, cov hloov kev nyab xeeb rau tag nrho cov khoom xa tuaj yuav tsum tau muab tua tam sim ntawd, cov khoom seem yuav tsum raug kuaj xyuas, thiab qhov tseeb ntawm kev sib xyaw yuav tsum raug kuaj xyuas.

Kev tsim kho txheej txheem
(1) Rolling. Cov txheej dej tsis muaj dej uas nyuam qhuav tau txau (sprinkled) tsis tuaj yeem dov tam sim ntawd, txwv tsis pub cov kub hloov kho bitumen yuav ua raws li cov log tsheb ntawm cov roj hmab-tyred txoj kev cov menyuam thiab lo cov pob zeb. Thaum qhov kub thiab txias ntawm SBS hloov bitumen poob mus txog 100 ° C, cov roj hmab log tsheb yog siv los tswj lub siab rau ib puag ncig mus ncig, thiab kev tsav tsheb ceev yog 5-8km·h-1, kom cov pob zeb nias. rau hauv cov hloov kho bitumen thiab bonded khov kho.
(2) Kev txuag. Tom qab txheej txheej foob tau ua tiav, nws raug txwv nruj rau kev tsim kho tsheb kom nres tam sim ntawd thiab tig mus. Txoj kev yuav tsum raug kaw, thiab tom qab kev tsim kho ntawm SBS hloov bitumen sealing txheej yog sib txuas nrog kev tsim kho ntawm cov txheej txheem qis, cov txheej txheem bitumen yuav tsum tau tsim tam sim ntawd, thiab cov txheej txheem qis tsuas yog qhib rau kev khiav tsheb tom qab qis dua. txheej yog paved. Nyob rau saum npoo ntawm cov txheej txheem dej tsis ruaj khov los ntawm cov roj hmab-tyred rollers, cov ntawv cog lus ntawm pob zeb thiab bitumen yog qhov ruaj khov, thiab cov ductility (elastic rov qab) ntawm cov hloov bitumen loj, uas tuaj yeem ua haujlwm tau zoo thiab txo cov kab nrib pleb ntawm lub hauv paus txheej. nyob rau saum npoo txheej los ntawm kev ua si lub luag hauj lwm ntawm ib tug stress-absorbing txheej reflective tawg.
(3) Kev tshuaj xyuas qhov zoo ntawm qhov chaw. Kev tshuaj xyuas qhov tshwm sim qhia tau hais tias qhov kev sib kis ntawm cov txheej txheem bitumen foob yuav tsum yog txawm tias tsis muaj dej thiab cov roj txheej yog tuab heev; cov txheej bitumen thiab aggregate txheej ntawm ib qho me me gravel yuav tsum sib npaug sib npaug yam tsis muaj qhov hnyav los yog tawm. Sprinkling npaum li cas nrhiav tau muab faib ua tag nrho cov nyiaj nrhiav kom tau thiab ib-taw tes nrhiav tau; tus qub tswj tag nrho cov sprinkling tus nqi ntawm seem kev tsim kho, hnyav lub gravel thiab bitumen, xam qhov sprinkling cheeb tsam raws li qhov ntev thiab dav ntawm seem sprinkling, thiab ces xam tus nqi ntawm sprinkling seem ntawm kev tsim kho. Zuag qhia tag nrho tus nqi thov; lub tom kawg tswj cov ntsiab lus ntawm tus kheej daim ntawv thov tus nqi thiab qhov sib xws.
Tsis tas li ntawd, qhov kev tshawb nrhiav ib leeg tau txais txoj hauv kev tso cov phaj: uas yog, siv daim kab xev steel los ntsuas qhov chaw ntawm lub phaj square (enamel phaj), thiab qhov tseeb yog 0.1cm2, thiab qhov loj ntawm lub phaj square yog hnyav rau qhov tseeb ntawm 1g; random xaiv qhov ntsuas ntsuas hauv ntu ntu ntu, tso 3 daim phiaj xwm txheej hauv qhov dav dav, tab sis lawv yuav tsum tsis txhob khiav ntawm lub tsheb sib khi lub log, qhov deb ntawm 3 square daim hlau yog 3 ~ 5m, thiab tus naj npawb ntawm ceg txheem ntseeg. ntsuas taw tes ntawm no yog sawv cev los ntawm txoj hauj lwm ntawm nruab nrab square phaj; synchronous chip sealing tsheb yog tsim ua raws li kev tsim kho kom ceev thiab kev sib kis; tshem tawm cov square phaj uas tau txais cov qauv, thiab nphoo bitumen thiab gravel rau ntawm qhov chaw seem nyob rau hauv lub sij hawm, hnyav qhov hnyav ntawm lub phaj square, bitumen, thiab gravel, raug rau 1g; Xam qhov loj ntawm bitumen thiab gravel nyob rau hauv lub square phaj; tshem tawm cov pob zeb nrog tweezers thiab lwm yam cuab yeej, tsau thiab yaj cov bitumen hauv trichlorethylene, qhuav cov pob zeb thiab hnyav nws, thiab xam cov pob zeb loj thiab bitumen nyob rau hauv lub square phaj; Tus nqi ntawm cov ntaub, xam tus nqi nruab nrab ntawm 3 qhov kev sim sib npaug.

Peb paub tias qhov kev ntsuam xyuas tau qhia tias peb paub tias tus nqi ntawm bitumen txau los ntawm lub tsheb synchronous gravel sealer yog qhov ruaj khov vim nws tsis cuam tshuam los ntawm kev ceev ntawm lub tsheb. Sinoroader synchronous sealer tsheb Peb cov pob zeb sib tsoo muaj qhov yuav tsum tau ua nruj me ntsis ntawm kev ceev ntawm lub tsheb, yog li tus neeg tsav tsheb yuav tsum tau tsav ntawm qhov ceev ntawm qee qhov ceev.