Siyazi ukuthi ungqimba oluyisisekelo lwe-bitumen pavement luhlukaniswe lwaba oluqinile futhi oluqinile. Njengoba ungqimba oluyisisekelo kanye nongqimba olungaphezulu kuyizinto zezakhiwo ezihlukene, ukuhlangana okuhle namandla aqhubekayo phakathi kokubili kuyisihluthulelo sezidingo zalolu hlobo lokuhamba ngezinyawo. Ngaphezu kwalokho, lapho umgwaqo wetiyela ugeleza amanzi, amanzi amaningi azogxila endaweni ephakathi nendawo nongqimba olungaphansi, okubangele umonakalo endaweni egandaywe yibitumen njengokugrumba, ukuxebuka, nemigodi. Ngakho-ke, ukwengeza isendlalelo sophawu oluphansi esisekelweni esiqinile kancane noma esiqinile kuzodlala indima ebalulekile ekuthuthukiseni amandla, ukuzinza kanye nekhono elingangeni manzi lesendlalelo sesakhiwo esigandayiwe. Siyazi ukuthi ubuchwepheshe obusetshenziswa kakhulu wukusebenzisa ubuchwepheshe bemoto ehambisanayo ye-chip sealer.

Indima yongqimba oluphansi lophawu lwemoto evumelanisa i-chip sealer

1. Ukuxhumana kwe-Interlayer
Kunomehluko osobala phakathi kwendawo egandaywe yitiyela kanye nesisekelo esiqinile noma esiqinile ngokwesakhiwo, izinto zokwakha, ubuchwepheshe bokwakha kanye nesikhathi. Ngokwenhloso, kwakheka indawo eshelelayo phakathi kongqimba olungaphezulu kanye nesisekelo. Ngemva kokwengeza isendlalelo sophawu oluphansi, isendlalelo esiphezulu kanye nesendlalelo sesisekelo singahlanganiswa ngokuphumelelayo.

2. Dlulisa umthwalo
Ungqimba olungaphezulu lwebitume kanye nongqimba lwesisekelo oluqinile kancane noma oluqinile ludlala izindima ezihlukene ohlelweni lwesakhiwo somgwaqo ogandaywayo.
Ungqimba olungaphezulu lwebitumen ludlala ikakhulukazi indima yokunqanda ukushelela, ukungangeni kwamanzi, ukulwa nomsindo, ukushelela nokuqhekeka kwe-anti-shear, futhi kudlulisele umthwalo esisekelweni.
Ukuze kuzuzwe inhloso yokudlulisa umthwalo, kufanele kube nokuqhubeka okuqinile phakathi kongqimba olungaphezulu kanye nesendlalelo sesisekelo, futhi lokhu kuqhubeka kungabonakala ngesenzo sesendlalelo esingezansi sokuvala (ungqimba olunamathelayo, ungqimba oluvuzayo).

3. Thuthukisa amandla omgwaqo
Imoduli yokuqina kongqimba olungaphezulu lwebitume ihlukile kuleyo yongqimba oluyisisekelo oluqinile noma oluqinile. Uma zihlanganiswa ndawonye ngaphansi komthwalo, imodi yokusabalalisa ukucindezeleka kwesendlalelo ngasinye ihlukile, futhi ukuguqulwa nakho kuhlukile. Ngaphansi komthwalo oqondile namandla omthelela angemuva wemoto, Isendlalelo esingaphezulu sizoba nokuthambekela kokugudluka okuhlobene nesendlalelo sesisekelo. Uma ukungqubuzana kwangaphakathi nokunamathela kongqimba olungaphezulu ngokwalo kanye nokugoba nokucindezeleka okuqinile phansi kongqimba olungaphezulu akukwazi ukumelana nalokhu kucindezeleka kokufuduka, ungqimba olungaphezulu luyoba nezinkinga ezinjengokusunduza, ukuhuquza, noma ukuxegisa nokuxebuka, amandla engeziwe ayadingeka ukuvimbela lokhu kunyakaza kwe-interlayer. Ngemuva kokuthi ungqimba oluphansi lokuvalwa kwengezwe, ukumelana nokungqubuzana namandla okubumbana okuvimbela ukunyakaza kuyanda phakathi kwezingqimba, ezingenza imisebenzi yokubopha nokuguqula phakathi kokuqina nokuguquguquka, ukuze ungqimba olungaphezulu, isendlalelo sesisekelo, isendlalelo se-cushion kanye isisekelo somhlabathi singamelana nomthwalo ndawonye. Ukuze kufezwe inhloso yokuthuthukisa amandla endlela yomgwaqo.

4. Ingangeni manzi futhi iphikisana nokungena emanzini
Esakhiweni esinezendlalelo eziningi sikathelawayeka ogandayiwe wetiyela, okungenani ungqimba olulodwa kufanele kube ingxube kakhonkolo yohlobo lwe-I enamazinga aminyene. Kodwa lokhu akwanele, ngoba ngaphezu kwezici zokuklama, ukwakhiwa kokhonkolo we-asphalt kuphinde kuthinteke izici ezihlukahlukene ezifana nekhwalithi yebitumen, izakhiwo zezinto zamatshe, ukucaciswa kwezinto zamatshe kanye nezilinganiso, isilinganiso se-asphalt, ukuxuba nokufaka imishini, izinga lokushisa elijikelezayo, nesikhathi sokuhamba. Umthelela. Ekuqaleni, ukubumbana kufanele kube kuhle kakhulu futhi ukungena kwamanzi kucishe kufinyelele ku-zero, kodwa ukungena kwamanzi kuvame ukuba phezulu kakhulu ngenxa yokwehluleka kwesixhumanisi esithile, ngaleyo ndlela kuthinte ikhono lokunqanda ukuvuleka kwe-bitumen egandayiwe. Kuthinta ngisho nokuzinza kwe-bitumen pavement ngokwayo, isisekelo kanye nesisekelo senhlabathi. Ngakho-ke, lapho indawo yebitumen isendaweni enemvula futhi izikhala zinkulu futhi ukugeleza kwamanzi kukubi, ungqimba olungezansi lophawu kufanele lugandaywe ngaphansi kwendawo yebitumen.

Uhlelo lokwakha lwemoto evalwayo ehambisanayo ngaphansi kokuvalwa

Umgomo wokusebenza we-synchronous gravel seal ukusebenzisa izinto zokwakha ezikhethekile——imoto evumelanisa i-chip sealer ukufafaza itiyela elinezinga lokushisa eliphezulu kanye namatshe ahlanzekile futhi omile omfaniswano endaweni yomgwaqo cishe ngesikhathi esifanayo, futhi itiyela namatshe aqedwa ngomshini. isikhathi esifushane. Kuhlanganiswe, futhi ngokuqhubekayo kuqinisa amandla ngaphansi kwesenzo somthwalo wangaphandle.

Ama-synchronous chip sealer angasebenzisa izinhlobo ezihlukene zokuhlanganisa itiyela: Ibitumen ehlanzekile ethambile, i-polymer SBS modified bitumen, i-emulsified bitumen, ibitumen elungiswe nge-polymer, i-bitumen ehlanjululiwe, njll. Njengamanje, inqubo esetshenziswa kakhulu e-China ukushisisa itiyela elivamile elishisayo 140°C noma shisisa i-bitumen eshintshiwe ye-SBS ibe ngu-170°C, sebenzisa isisakazeli sebitumen ukufafaza ngokulinganayo itiyela phezu kwesisekelo esiqinile noma esiqinile, bese usakaza i-aggregate ngokulinganayo. I-aggregate iyitshe le-limestone elinosayizi wezinhlayiyana ongu-13.2~19mm. Kufanele ihlanzeke, yome, ingabi nesimo sezulu kanye nokungcola, futhi ibe nokuma okuhle kwezinhlayiyana. Inani letshe eligxotshiwe liphakathi kuka-60% no-70% wendawo egandayiwe.
Inani letiyela ne-aggregate ngu-1200kg·km-2 kanye no-9m3·km-2 ngokulandelana kwayo ngesisindo. Ukwakhiwa ngokwalolu hlelo kudinga ukunemba okuphezulu enanini lokufafazwa kwetiyela kanye nokusabalalisa okuhlanganisiwe, ngakho imoto echwepheshile yokuvala i-bitumen macadam synchronous sealing kufanele isetshenziselwe ukwakha. Phezulu kwesisekelo se-macadam esizinzile esifuthwe ngongqimba, inani lokufafaza licishe libe ngu-1.2~2.0kg·km-2 lebitumen eshisayo noma i-SBS elungisiwe, bese kuba ungqimba lwebitumen echotshoziwe. usayizi wezinhlayiyana olulodwa usakazwa ngokulinganayo kuwo. Usayizi wezinhlayiyana zegravel negravel kufanele ufane nosayizi wezinhlayiyana zokhonkolo we-asphalt ogandaywe kungqimba olungangeni manzi. Indawo yokusabalalisa ingu-60-70% we-pavement egcwele, bese iqiniswa ngerola yesondo lerabha izikhathi ezingu-1-2 ukuze yakheke. Injongo yokusabalalisa igravel ngosayizi wezinhlayiyana zodwa iwukuvikela ungqimba olungangeni manzi ekubeni lonakaliswe amathayi ezimoto zokwakha ezifana namaloli abalulekile kanye namathrekhi okukhasa we-bitumen paver ngesikhathi sokwakhiwa, kanye nokuvimbela itiyela elilungisiwe ukuthi lingancibilikiswa phezulu. Isimo sezulu sezinga lokushisa kanye nengxube ye-asphalt eshisayo. Ukunamathisela isondo kuzothinta ukwakhiwa.
Ngokweqile, amatshe achotshoziwe awaxhumani. Uma ingxube ye-asphalt igandayiwe, ingxube yezinga eliphezulu lokushisa izongena igebe phakathi kwamatshe agaywe, okubangele ukuthi ifilimu yebitumen elungisiwe ishiswe futhi inyibilike. Ngemva kokugingqika nokuhlangana, itshe elimhlophe elichotshoziwe liba Itshe lebitumen lishunyekwa ngaphansi kongqimba lwesakhiwo sebitumen ukuze lwakheke nalo lonke, futhi "ungqimba olunothe uwoyela" olungaba ngu-1.5cm luyakhiwa phansi kwesakhiwo ungqimba, olungadlala ngempumelelo indima yongqimba olungangenwa amanzi.

Izindaba ezidinga ukunakwa ngesikhathi sokwakhiwa

(1) Ukuze kwakheke ifilimu yebitumen eyunifomu futhi enobukhulu obulinganayo ngokufafaza ngendlela yenkungu, itiyela elivamile elishisayo kufanele lishisiswe libe ngu-140°C, futhi izinga lokushisa lebitumen elishintshiwe le-SBS kumelwe libe ngaphezu kuka-170°C.
(2) Izinga lokushisa lokwakha longqimba lwebitumen seal akufanele libe ngaphansi kuka-15°C, futhi ukwakhiwa akuvunyelwe enkathini enomoya, inkungu eminyene noma ezinsukwini zemvula.
(3) Ugqinsi lwefilimu yebitumen luhlukile uma ukuphakama konozi kuhlukile (ukugqagqana kwenkungu emise okwefeni efuthwe ngombhobho ngamunye kuhlukile), futhi ubukhulu befilimu yebitumen bufanelekile futhi bufana ngokulungisa ukuphakama kwe-nozzle.
(4) Imoto yokuvala i-gravel sealing kufanele ihambe ngesivinini esifanelekile kanye nesivinini esifanayo. Ngaphansi kwalesi sisekelo, izinga lokusabalalisa lento yetshe kanye nesibophezelo kufanele kufane.
(5) Ngemva kokuthi itiyela elilungisiwe kanye netshe lifafazwa (lisakalisiwe), ukulungiswa mathupha noma ukuphetshwa kufanele kwenziwe ngokushesha, futhi ukulungisa indawo yokuqala, indawo yokugcina, ilunga longitudinal, eliwugqinsi kakhulu, lizacile kakhulu noma alilingani.
(6) Thumela umuntu okhethekile ukuthi abambe umshanelo we-bamboo ukuze alandele imoto yokuvalwa kwe-chip ehambisanayo, futhi ashanele amatshe agxotshiwe ngaphandle kobubanzi bendawo egandaywe (okungukuthi, ububanzi bebitumen esakazwayo) ebubanzini bokugandaya ngokuhamba kwesikhathi, noma wengeze i-baffle ukuvimbela amatshe ochotshoziwe Ubude be-Popup Pave Width.
(7) Uma noma iyiphi into esemotweni yokuvalwa kwe-synchronous chip sealing isetshenziswa, amaswishi okuphepha akho konke ukulethwa kwezinto kufanele acishwe ngokushesha, inani elisele lezinto ezibonakalayo kufanele lihlolwe, futhi ukunemba kokuxubana kufanele kuhlolwe.

Inqubo yokwakha
(1) Ukugingqika. Isendlalelo esingangeni manzi esisanda kufafazwa (sifafazwa) asikwazi ukugoqwa ngokushesha, ngaphandle kwalokho itiyela elishintshiwe lizinga lokushisa eliphezulu lizonamathela emathayini erola yomgwaqo enethayi leraba futhi linamathele kude netshe. Uma izinga lokushisa le-bitumen elishintshiwe le-SBS lehla liba ngu-100°C, irola yomgwaqo enethayela elinerabha isetshenziselwa ukuzinzisa ukucindezela ohambo olulodwa lokuya nokubuya, futhi isivinini sokushayela singu-5-8km·h-1, ukuze itshe licindezelwe. kubitumeni eguquliwe futhi iboshwe ngokuqinile.
(2) Ukongiwa kwemvelo. Ngemuva kokuthi ungqimba lophawu lugandaywe, akuvunyelwe ukuthi izimoto zokwakha zibhuleke kungazelelwe futhi zijike. Umgwaqo kufanele uvalwe, futhi ngemva kokwakhiwa kongqimba lwe-bitumen olulungisiwe lwe-SBS luxhunywe eduze nokwakhiwa kwesendlalelo esingaphansi, ungqimba olungaphansi lwebitumen kufanele lwakhiwe ngokushesha, futhi ungqimba olungaphansi lungavulelwa ithrafikhi kuphela ngemva komugqa ophansi. ungqimba lugandaywe. Phezu kwesendlalelo esingangeni manzi esiqiniswe amarola anethayela lenjoloba, isibopho phakathi kwetshe nebitumen siqine kakhulu, futhi i-ductility (i-elastic recovery) yetiyela elungisiwe inkulu, engabambezeleka kanye futhi yehlise ukuqhekeka kwesisekelo. kungqimba engaphezulu ngokudlala indima yongqimba olubamba ukucindezeleka kwemifantu ekhanyayo.
(3) Ukuhlolwa kwekhwalithi esizeni. Ukuhlolwa kokubukeka kubonisa ukuthi ukusabalala kwebitumen kongqimba lwebitume kufanele kube ngaphandle kokuvuza futhi ungqimba lukawoyela luwugqinsi kakhulu; ungqimba lwebitumene kanye nongqimba oluhlanganisiwe lwegravel yosayizi owodwa kufanele lusatshalaliswe ngokulinganayo ngaphandle kwesisindo esinzima noma ukuvuza. Ukutholwa kwenani lokufafaza kuhlukaniswe ngenani eliphelele lokutholwa kanye nokutholwa kwephuzu elilodwa; eyokuqala ilawula inani eliphelele lokufafaza lesigaba sokwakha, ikala igraveli kanye nebitume, ibala indawo yokufafaza ngokobude nobubanzi bengxenye yokufafaza, bese ibala inani lokufafaza lengxenye yokwakha. Isilinganiso sesicelo sesisonke; Okokugcina kulawula izinga lesicelo sephoyinti ngalinye kanye nokufana.
Ngaphezu kwalokho, ukutholwa kwephoyinti elilodwa kusebenzisa indlela yokubeka ipuleti: okungukuthi, sebenzisa itheyiphu yensimbi ukukala indawo engaphezulu yepuleti isikwele (i-enamel plate), nokunemba kungu-0.1cm2, kanye nesisindo i-square plate ikalwa ngokunemba okungu-1g; khetha ngokungahleliwe iphoyinti lokulinganisa esigabeni sokufafaza esivamile , beka amapuleti ayizikwele angu-3 ngaphakathi kobubanzi obusakazekayo, kodwa kufanele agweme ithrekhi yesondo lokuvala imoto, ibanga eliphakathi kwamapuleti angu-3 sikwele ngu-3~5m, kanye nenombolo yesiteki. indawo yokulinganisa lapha imelelwa indawo yepuleti lesikwele esimaphakathi; iloli elivala uphawu lwe-synchronous chip lakhiwa ngokwesivinini esivamile sokwakha kanye nendlela yokusabalalisa; susa ipuleti lesikwele elithole amasampula, bese ufafaza itiyela kanye negravel endaweni engenalutho ngesikhathi, ukale isisindo sepuleti lesikwele, bitumen, kanye negravel, okunembile ukuya ku-1g; Bala isisindo sebitumen kanye negravel kupuleti lesikwele; khipha i-gravel ngama-tweezers namanye amathuluzi, cwilisa futhi uncibilikise itiyela ku-trichlorethylene, womise i-gravel futhi ukale isisindo, futhi ubale isisindo setshe letiyela nebitumen epuletini sikwele; Inani lendwangu, bala inani eliyisilinganiso lemilingo emi-3 ehambisanayo.

Siyazi ukuthi imiphumela yokuhlola ibonisa ukuthi siyazi ukuthi inani letiyela elifafazwe yi-synchronous gravel sealer imoto lizinzile ngoba alithintwa isivinini semoto. I-Sinoroader synchronous sealer iloli Inani lethu lokusabalalisa itshe eligayiwe linezidingo eziqinile ngesivinini semoto, ngakho umshayeli kudingeka ashayele ngesivinini esingaguquki ngesivinini esithile.