Isu tinoziva kuti base layer yebhitumene pavement yakakamurwa kuita semi-rigid uye yakaoma. Sezvo chigadziko chepamusoro uye chigadziko chepamusoro zvinhu zvezvinhu zvakasiyana-siyana, kusungirirwa kwakanaka uye kusimba kunoramba kuripo pakati pezviviri ndiyo kiyi yezvinodiwa zverudzi urwu rwekufamba. Uyezve, kana bhitumini inofamba ichinyura mumvura, mvura zhinji inonangana pajoinhi iri pakati pepamusoro nepasi, zvichikonzera kukanganisa kwebhitumini yakadai sekugezera, kusunungura, uye makomba. Naizvozvo, kuwedzera yakaderera chisimbiso layer pane semi-yakaomarara kana yakaomeswa base ichaita basa rakakosha mukusimudzira simba, kugadzikana uye kugona kusapinda kwemvura kweiyo pavement structural layer. Isu tinoziva kuti iyo inonyanya kushandiswa tekinoroji ndeyekutora tekinoroji yesynchronous chip sealer mota.

Basa rechikamu chepasi chisimbiso cheiyo synchronous chip sealer mota

1. Interlayer connection
Pane mutsauko uripachena pakati pebhitumini pavement uye semi-yakaomesesa kana yakaomesesa base maererano nechimiro, yekugadzira zvinhu, tekinoroji yekuvaka uye nguva. Nechinangwa, nzvimbo inotsvedza inoumbwa pakati pehupamhi hwepamusoro nehwaro hwepasi. Mushure mekuwedzera chisimbiso chepasi, iyo yepamusoro yepamusoro uye nheyo yepamusoro inogona kunyatsobatanidzwa.

2. Kutamisa mutoro
Iyo bhitumini yepamusoro layer uye semi-yakaomarara kana yakaomesesa base layer inoita mabasa akasiyana mugwara rehurongwa.
Iyo bhitumini yepamusoro layer inonyanya kuita basa reanti-kutsvedza, kusapinda mvura, anti-ruzha, anti-shear kutsvedza uye kutsemuka, uye kuendesa mutoro kune hwaro.
Kuti uwane chinangwa chekutakura mutoro, panofanira kuva nekuenderera kwakasimba pakati pepamusoro pepamusoro uye nheyo yepamusoro, uye kuenderera mberi uku kunogona kuitika kuburikidza nekuita kwechisimbiso chepasi (adhesive layer, permeable layer).

3. Kuvandudza simba pamusoro pemugwagwa
Iyo modulus yekusimba kwebhitumini pamusoro pedenga rakasiyana neiyo yehafu-yakaomarara kana yakaomarara base layer. Kana ivo vakasanganiswa pamwechete pasi pemutoro, iyo yekudzvinyirira diffusion modhi yeimwe neimwe layer yakasiyana, uye deformation zvakare yakasiyana. Pasi pemutoro wakatwasuka uye lateral kukanganisa simba remotokari, Iyo yekumusoro layer ichava netsika yekusimuka inoenderana neiyo base layer. Kana iko kukweshera kwemukati uye kunamatira kweyepamusoro pedenga pachayo uye kukotama uye kushushikana kushushikana pazasi pedenga repamusoro hakugone kuramba kushushikana uku kwekutamisa, iyo nzvimbo yekumusoro ichava nezvinetso zvakaita sekusundidzira, kupuruzira, kana kusunungura uye kupepeta. kuwedzera simba kunodiwa kudzivirira iyi interlayer kufamba. Mushure mekunge chikamu chekuisa chisimbiso chepasi chawedzerwa, kupesana kwekurwisana uye simba rakabatana kudzivirira kufamba kunowedzerwa pakati pezvikamu, izvo zvinogona kuita basa rekubatanidza nekushandura pakati pekuoma uye kushanduka, kuitira kuti nzvimbo yepamusoro, nheyo yepasi, cushion layer uye. nheyo yevhu inogona kuramba mutoro pamwe chete. Kuti uwane chinangwa chekuvandudza simba rose remugwagwa.

4. Isingapindi mvura uye inopesana nepeji
Munzvimbo ine ma-multi-layered bhitumeni pavement, chinenge chimwechete chinofanirwa kunge chiri I-type ine densely graded bitumen concrete musanganiswa. Asi izvi hazvina kukwana, nekuti mukuwedzera kune dhizaini zvinhu, kuvakwa kweasphalt kongiri kunokanganiswawo nezvinhu zvakasiyana-siyana senge bitumen quality, matombo zvinhu zvivakwa, matombo zvinhu zvirevo uye kuenzana, asphalt ratio, kusanganisa uye paving midziyo, rolling tembiricha, uye nguva yekufamba. Impact. Pakutanga, iyo compactness inofanira kunge yakanaka kwazvo uye mvura inopindirana inenge zero, asi mvura inoputika inowanzokwira zvakanyanya nekuda kwekukundikana kweimwe link, zvichiita kuti iite anti-seepage kukwanisa kwebhitumini pavement. Inotokanganisa kugadzikana kwebhitumini pavement pachayo, nheyo uye nheyo yevhu. Nokudaro, kana nzvimbo yebhitumini iri munzvimbo inonaya mvura uye maburi akakura uye mvura inoyerera yakakomba, chikamu chepasi chisimbiso chinofanira kuiswa pasi pevhu rebhitumini.

Kuvaka chirongwa cheiyo synchronous yekuisa chisimbiso mota pasi pekuvharwa

The kushanda musimboti we synchronous gravel seal kushandisa yakakosha midziyo yekuvaka——synchronous chip sealer mota kupfapfaidza bhitumene inopisa zvikuru uye yakachena uye yakaoma matombo eunifomu pamugwagwa panguva imwe cheteyo, uye bhitumini nematombo zvinopera mu nguva pfupi. Yakasanganiswa, uye inoramba ichisimbisa simba pasi pechiito chemutoro wekunze.

Synchronous chip sealers anogona kushandisa marudzi akasiyana ebhitumeni: Bitumen yakapfava, polymer SBS modified bitumen, emulsified bitumen, bitumen yakagadziridzwa yepolymer, diluted bitumen, nezvimwewo. Parizvino, nzira inonyanya kushandiswa kuChina ndeyekupisa bhitumini yakajairika 140°C kana kupisa SBS yakagadziridzwa bhitumeni kusvika 170°C, shandisa chiparadzi chebhitumene kupfapfaidza bhitumeni zvakaenzana pamusoro pebhesi rakaomarara kana kuti semi-rigid base, wobva waparadzira aggregate zvakaenzana. Aggregate imatombo eraimestone ane saizi ye13.2 ~ 19mm. Inofanira kunge yakachena, yakaoma, isina mamiriro ekunze netsvina, uye iine chimiro chakanaka. Huwandu hwematombo akapwanyika huri pakati pe60% ne70% yenzvimbo yakarongwa.
Huwandu hwebhitumini uye aggregate i1200kg·km-2 uye 9m3·km-2 zvichienderana nehuremu. Kuvaka maererano nechirongwa ichi kunoda kunyatsojeka kwehuwandu hwekupfapfaidza bhitumeni nekupararira, saka bhitumen macadam synchronous sealing mota yehunyanzvi inofanirwa kushandiswa pakuvaka. Pamusoro pecement-stabilized macadam base yakapfapfaidzwa nepakati, huwandu hwekupfapfaidza hunosvika 1.2~2.0kg·km-2 yebhitumeni inopisa kana SBS yakagadziridzwa bhitumeni, kwozoita layer yebhitumene yakapwanyika ine single particle size yakawaridzwa zvakaenzana pairi. Saizi yegravel negravel inofanirwa kuenderana nesaizi yeasphalt kongiri yakarongwa padhiza isingapinde mvura. Nzvimbo yekuparadzira ndeye 60-70% yemugwagwa wakazara, uye wozodzikamiswa nerubber tire roller kuti 1-2 nguva dzigadzire. Chinangwa chekuparadzira matombo ane size imwe chete ndeyekudzivirira kuti isapinda mvura kuti isakuvadzwe nemavhiri emota dzinovaka dzakaita semarori ekutakura zvinhu nemarori anokambaira ebhitumen paver panguva yekuvakwa, uye kudzivirira bhitumini yakagadziridzwa kuti isanyungudiswe nepamusoro. tembiricha yemamiriro ekunze uye inopisa asphalt musanganiswa. Kunamatira vhiri kuchakanganisa kuvaka.
Nechepfungwa, matombo akapwanyika haabatanidzine. Kana asphalt musanganiswa wagadzirwa, musanganiswa wekupisa kwepamusoro-soro unopinda pakakoromoka pakati pematombo akapwanyika, zvichiita kuti firimu rebhitumini rakagadziridzwa ripiswe nekunyunguduka. Mushure mekukunguruka nekupetana, dombo jena rakapwanyika rinobva raita Ivhu rebhitumini rinoiswa muzasi mebhitumeni muurongwa weraya kuti riumbe rose naro, uye "mafuta ane mafuta akawanda" angaita 1.5cm anoumbwa pazasi pezvakaumbwa. layer, iyo inogona kuita basa redhiza isingapinde mvura.

Zvinhu zvinoda kutarisirwa panguva yekuvaka

(1) Kugadzira yunifomu uye kukora zvakaenzana bhitumeni firimu nekupfapfaidza muchimiro chemhute, bhitumeni yakajairika inopisa inofanira kudziyisa kusvika 140°C, uye tembiricha yebhitumeni yakagadziridzwa yeSBS inofanira kuva pamusoro pe170°C.
(2) Tembiricha yekuvakisa yebhitumini seal layer haifanire kunge yakaderera kupfuura 15°C, uye kuvaka hakubvumidzwe mumhepo, mhute yakaoma kana kunaya.
(3) Ukobvu hwefirimu rebhitumeni hwakasiyana kana kureba kwemhuno kwakasiyana (kupindirana kwemhute yakaita sefeni yakapfapfaidzwa nemhuno yega yega kwakasiyana), uye ukobvu hwebhitumini firimu hwakakodzera uye hwakafanana nekugadzirisa kureba kwemuromo.
(4) Mota yekuvharisa matombo inofanira kufamba nekumhanya kwakakodzera uye kumhanya kwakafanana. Pasi pechinhu ichi, mwero wekupararira kwematombo uye binder zvinofanirwa kuenderana.
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(6) Tumira munhu akakosha kuti abate mutsvairo weshenjere kuti atevere mota inovharisa chip sealing, uye kutsvaira matombo akapwanyika kunze kwehupamhi hwepaving (kureva, upamhi hwebhitumini inowaridzwa) muhupamhi hwepaving nekufamba kwenguva, kana kuwedzera. baffle kudzivirira matombo akapwanyika Popup Pave Width.
(7) Kana chero chinhu chiri pamotokari yesynchronous chip sealing chikapera, ma switch ekuchengetedza zvinhu zvese zvinotumirwa anofanira kudzimwa pakarepo, huwandu hwezvinhu hwasara hunofanira kuongororwa, uye kusanganiswa kwechokwadi kunofanira kuongororwa.

Kuvaka nzira
(1) Kuumburuka. Iyo isingapindi mvura ichangobva kusaswa (yakasaswa) haikwanise kukungurutswa pakarepo, zvikasadaro bhitumini yakagadziridzwa inonamira pamavhiri erubber-tyred road roller yonamira kubva pagravel. Kana tembiricha yeSBS yakagadziridzwa bhitumene yadzikira kusvika 100°C, rabha-tyred road roller inoshandiswa kudzikamisa kudzvanya kwerwendo rumwe chete rwokudzoka, uye sipidhi yekutyaira i5-8km·h-1, kuitira kuti gravel inotsikirirwa. mubhitumini yakagadziridzwa uye yakasungirirwa zvakasimba.
(2) Kuchengetedza. Mushure mekunge chisimbiso chaitwa, hazvibvumidzwe kuti mota dzekuvaka dzirove kamwe kamwe dzotendeuka. Mugwagwa unofanirwa kuvharwa, uye mushure mekuvakwa kweSBS yakagadziridzwa bhitumeni seal layer yakanyatsobatanidzwa nekuvakwa kweiyo yepasi, bhitumeni yezasi inofanira kugadzirwa nekukasira, uye yepasi inogona kuvhurirwa traffic mushure meiyo yepasi. layer is paved. Pamusoro pe layer isingapinde mvura yakagadzikiswa nemaroller ane rabha-tyred, chisungo chiri pakati pegravel nebhitumini chakasimba zvikuru, uye dura (elastic recovery) yebhitumeni yakagadziridzwa yakakura, inogona kunyatsononotsa uye kuderedza kutsemuka kwe base layer. pamusoro pedhizaini nekutamba chinhanho chekudzvanya-kunyudza layer inopenya inopenya.
(3) Pa-saiti yemhando yekuongorora. Kuongororwa kwechitarisiko kunoratidza kuti bhitumini inopararira yebhitumini seal layer inofanira kunge isina kudonha uye mafuta layer akanyanya kukora; bhitumini layer uye aggregate layer yegravel ye size-single gravel inofanira kupararira pasina huremu hunorema kana kudonha. Kuonekwa kwehuwandu hwekumwaya kunokamurwa kuita huwandu hwese kuonekwa uye kuona-poindi imwe chete; yekutanga inodzora huwandu hwese hwekumwaya hwechikamu chekuvakisa, inoyera matombo nebhitumini, inoverenga nzvimbo yekumwaya zvinoenderana nehurefu nehupamhi hwechikamu chekumwaya, yobva yaverenga kuwanda kwekumwaya kwechikamu chekuvaka. Yakazara application rate; iyo yekupedzisira inodzora individual point application rate uye kufanana.
Pamusoro pezvo, kucherechedzwa kwenzvimbo imwe chete kunotora nzira yekuisa purati: ndiko kuti, shandisa tepi yesimbi kuyera nzvimbo yeskweya plate (enamel plate), uye kurongeka kuri 0.1cm2, uye huremu hwe. iyo square plate inoyerwa kuita 1g; sarudza nzvimbo yekuyeresa muchikamu chemazuva ese chekupfapfaidza, isa 3 square plates mukati mehupamhi hwekupararira, asi anofanirwa kunzvenga nzira yevhiri remotokari rakavharwa, chinhambwe chiri pakati pe3 square plates i3~5m, uye nhamba yesiteki. measuring point pano inomiririrwa nenzvimbo yepakati square plate; synchronous chip sealing rori inogadzirwa maererano neyakajairwa kuvaka kumhanya uye nzira yekuparadzira; bvisa square plate yatambira samples, womwaya bhitumini ne gravel panzvimbo isina chinhu nenguva, woyera huremu hwesquare plate, bhitumene, negravel, zvinosvika 1g; Verenga uremu hwebhitumini ne gravel mu square plate; budisa matombo ane matinji nemamwe maturusi, soka uye nyungudutsa bhitumini mu trichlorethylene, woomesa matombo acho uye woyera, uye woverenga kuwanda kwematombo nebhitumini mundiro yeskweya; Huwandu hwemachira, verenga avhareji yemari yezviyedzo 3 zvakada kufanana.

Tinoziva kuti mibairo yebvunzo inoratidza kuti tinoziva kuti huwandu hwebhitumeni yakapfapfaidzwa neyakafanana neyakavharwa sealer mota haina kugadzikana nekuti haikanganisike nekumhanya kwemotokari. Sinoroader synchronous sealer rori Yedu yakapwanyika yekuparadzira dombo ine zvinodikanwa pakumhanya kwemotokari, saka mutyairi anosungirwa kuti kutyaira arambe achimhanya pane imwe sipidhi.