Siyazi ukuba isiseko somgangatho we-bitumen pavement yahlulwe ibe yi-semi-rigid kwaye iqinile. Ekubeni isiseko sesiseko kunye nomgangatho ophezulu zizinto zeempawu ezahlukeneyo, ukudibanisa okulungileyo kunye namandla aqhubekayo phakathi kwezi zibini zingundoqo kwiimfuno zolu hlobo lwe-pavement. Ukongezelela, xa umgaqo webhitumene ugalela amanzi, uninzi lwamanzi luya kugxila kwindawo ephakathi komphezulu nomgangatho osezantsi, nto leyo ebangela umonakalo kwipavumente yebhitumene njengokugrumba, ukukhulula, kunye nemingxuma. Ke ngoko, ukongeza umaleko wetywina elisezantsi kwisiseko esiqinileyo okanye esiqinileyo kuya kudlala indima ebalulekileyo ekwandiseni amandla, uzinzo kunye nobuchule bokungangeni manzi bomaleko we-pavement structural. Siyazi ukuba itekhnoloji esetyenziswa ngokuqhelekileyo kukwamkela itekhnoloji ye-synchronous chip sealer imoto.

Indima yomaleko wetywina elisezantsi lesithuthi se-synchronous chip sealer

1. Uqhagamshelwano lwe-Interlayer
Kukho iiyantlukwano ezicacileyo phakathi kwendlela yokuhamba ngebhitumene kunye nesiseko se-semi-rigid okanye esomeleleyo ngokwesakhiwo, izinto zokuqulunqa, iteknoloji yokwakha kunye nexesha. Ngenjongo, i-sliding surface yenziwa phakathi komgangatho ophezulu kunye nomgangatho wesiseko. Emva kokongeza umgca wetywina elingaphantsi, umgangatho ongaphezulu kunye nomgangatho wesiseko unokudibaniswa ngokufanelekileyo.

2. Umthwalo wokudlulisa
Umaleko womphezulu webhitumene kunye nongqindilili ophakathi okanye ongqindilili wesiseko udlala indima eyahlukileyo kwinkqubo yesakhiwo sepavumente.
I-bitumen surface layer idlala indima enkulu ye-anti-slip, i-waterproof, i-anti-ingxolo, i-anti-shear slip kunye ne-crack, kwaye idlulisela umthwalo kwisiseko.
Ukuze kuphunyezwe injongo yokuhanjiswa komthwalo, kufuneka kubekho ukuqhubeka okuqinileyo phakathi komgangatho ongaphezulu kunye nomgangatho wesiseko, kwaye oku kuqhubela phambili kunokufezekiswa ngesenzo somgca wokutywina ophantsi (uluhlu olunamathelisa, i-permeable layer).

3. Ukuphucula ukomelela komphezulu wendlela
Imodyuli yokomelela komgangatho webhitumene yomaleko yahlukile kuleyo yomaleko wesiseko oqingqileyo okanye oqinileyo. Xa zidityaniswe kunye phantsi komthwalo, imowudi yokusabalalisa uxinzelelo kwinqanaba ngalinye yahlukile, kwaye i-deformation ihluke. Ngaphantsi komthwalo othe nkqo kunye nefuthe leempembelelo zecala lesithuthi, Umaleko womphezulu uya kuba ne-displacement tendency ngokubhekiselele kwi-base layer. Ukuba ukungqubuzana kwangaphakathi kunye nokuncamathela komgangatho ongaphezulu ngokwawo kunye nokugoba kunye noxinzelelo loxinzelelo ezantsi komgangatho ongaphezulu akukwazi ukumelana nolu xinzelelo lokufuduswa, umaleko womphezulu uya kuba neengxaki ezinje ngokutyhala, ukurula, okanye ukukhulula kunye nokuxobula, amandla ongezelelweyo ayafuneka ukukhusela le ntshukumo ye-interlayer. Emva kokuba umaleko wokutywina osezantsi wongeziwe, ukuxhathisa okukhuphisanayo kunye namandla okubambisana okuthintela ukunyakaza kuyenyuka phakathi kweengqimba, ezinokuthi zenze imisebenzi yokudibanisa kunye nokutshintsha phakathi kokuqina kunye nokuguquguquka, ukwenzela ukuba umaleko womphezulu, umaleko wesiseko, umaleko we-cushion kunye. isiseko somhlaba sinokuxhathisa umthwalo kunye. Ukuze kuphunyezwe injongo yokuphucula amandla apheleleyo epavumente.

4. Ukungangeni kwamanzi kunye nokuchasana nokubona
Kulwakhiwo olunamanqanaba amaninzi kwipavumente yebhitumene yohola wendlela, ubuncinci umaleko omnye kufuneka ube ngumxube wesamente yebhitumene ekumgangatho oxineneyo. Kodwa oku akwanelanga, kuba ukongeza kwimiba yoyilo, ukwakhiwa kwekhonkrithi ye-asphalt kukwachatshazelwa zizinto ezahlukeneyo ezifana nomgangatho webhitumene, iipropathi zezinto zamatye, ukucaciswa kwezinto zamatye kunye nobungakanani, umlinganiselo we-asphalt, ukuxuba kunye nezixhobo zokugalela, ubushushu obuqengqelekayo, kunye nexesha lokuhamba. Impembelelo. Ekuqaleni, ukubumbana kufuneka kube kuhle kakhulu kwaye ukunyanzeliswa kwamanzi kuphantse kube ngu-zero, kodwa ukunyanzeliswa kwamanzi kudla ngokuba phezulu kakhulu ngenxa yokusilela kwekhonkco elithile, ngaloo ndlela kuchaphazela amandla okuthintela ukubonwa kwepavement yebhitumene. Ide ichaphazele ukuzinza kwendlela yebhitumene ngokwayo, isiseko kunye nesiseko somhlaba. Ngoko ke, xa umphezulu webhitumene ukwindawo enemvula kwaye izikhewu zinkulu kwaye ukuseza kwamanzi kunzulu, umaleko wetywina ongezantsi kufuneka ugalelwe phantsi komphezulu webhitumene.

Iskimu sokwakhiwa kwesithuthi sokutywina esihambelanayo phantsi kokutywinwa

Umthetho-siseko wokusebenza we-synchronous gravel seal kukusebenzisa isixhobo sokwakha esikhethekileyo——synchronous chip sealer vehicle ukutshiza ibhitumene yobushushu obuphezulu kunye nococeko nokoma kwamatye afanayo kumphezulu wendlela phantse ngaxeshanye, kunye nebhitumene namatye agqityezelwa ngendlela ixesha elifutshane. Idityanisiwe, kwaye ngokuqhubekayo ukomeleza amandla phantsi kwesenzo somthwalo wangaphandle.

Izitywini zetshiphu ezilungelelanisiweyo zinokusebenzisa iindidi ezahlukeneyo zezibophelelo zebhitumene: Ibhitumene ethambileyo esulungekileyo, ipolima yebhitumene elungisiweyo ye-SBS, ibhitumene eguquliweyo, ibhitumene elungisiweyo yepolymer, ibhitumene ehlanjululweyo, njl. njl. Okwangoku, eyona nkqubo isetyenziswa kakhulu eTshayina kukufudumeza ibhitumene eqhelekileyo eshushu ukuya 140°C okanye ubushushu be-SBS elungisiweyo yebhitumene ukuya ku-170°C, sebenzisa isisasazi sebhitumene ukutshiza ngokulinganayo ibhitumene kumphezulu wesiseko esomeleleyo okanye esiqinileyo, uze usasaze iaggregate ngokulinganayo. Iaggregate yigrabile yelimestone enobungakanani besuntswana le-13.2 ~ 19mm. Kufuneka icoceke, yome, ingabi namozulu kunye nokungcola, kwaye ibe nemilo elungileyo. Ubungakanani bamatye atyunyuziweyo buphakathi kwe-60% kunye ne-70% yendawo egangathiweyo.
Ubungakanani bebhitumene kunye ne-aggregate yi-1200kg·km-2 kunye ne-9m3·km-2 ngokulandelelanayo ngokobunzima. Ulwakhiwo ngokwesi sicwangciso lufuna ukuchaneka okuphezulu kubungakanani bokutshizwa kwebhitumene kunye nokusasazwa ngokubanzi, ngoko ke isithuthi sobuchwephesha sebhitumen macadam sokutywina kufuneka sisetyenziselwe ukwakha. Kumphezulu wesiseko semacadam esizinzisiweyo sesamente esitshizwe kumaleko, ubungakanani bokutshiza bumalunga ne-1.2 ~ 2.0kg·km-2 yebhitumene eshushu okanye ibhitumene elungisiweyo ye-SBS, kwaye emva koko umaleko webhitumene ecushiweyo Ubungakanani besuntswana elinye busasazwe ngokulinganayo kuyo. Ubungakanani besuntswana legrabile kunye negrabile kufuneka bungqinelane nobungakanani besuntswana lekhonkrithi yeasphalt egangathiweyo kumaleko angangeni manzi. Indawo yokusabalalisa i-60-70% ye-pavement epheleleyo, kwaye emva koko izinzile kunye ne-rubber tire roller-i-1-2 amaxesha ukwenza. Injongo yokusasaza igrabile ngobungakanani besuntswana elinye kukukhusela umaleko ongangeni manzi ukuba wonakaliswe ngamatayara ezithuthi zokwakha ezifana neelori eziphathekayo kunye neetrakhi zebitumen paver ngexesha lolwakhiwo, kunye nokuthintela ibhitumene elungisiweyo ekunyibilikeni imozulu yobushushu kunye nomxube we-asphalt eshushu. Ukuncamathelisa ivili kuya kuchaphazela ulwakhiwo.
Ngokwethiyori, amatye atyumkileyo awadibananga. Xa umxube we-asphalt ugangathiwe, umxube wobushushu obuphezulu uyakungena isithuba phakathi kwamatye atyunyuziweyo, oko kubangela ukuba ifilimu yebhitumene elungisiweyo ifudunyezwe kwaye inyibilike. Emva kokuqengqeleka nokudityaniswa, ilitye elimhlophe elityunyuziweyo liba Igrabile yebhitumene ifakwe emazantsi ebhitumene umaleko ukuze yenze yonke into kunye nayo, kwaye "umaleko otyebile ngeoyile" omalunga ne-1.5cm wenziwa emazantsi esakhiwo sebhitumene. umaleko, onokudlala indima yomaleko wokungangeni manzi.

Imibandela efuna ingqalelo xa kusakhiwa

(1) Ukwenza ifilim yebhitumene efanayo kunye nokutyeba ngokulinganayo ngokutshiza ngendlela yenkungu, ibhitumene eqhelekileyo eshushu kufuneka ifudunyezwe ukuya kutsho kwi-140°C, kwaye ubushushu bebhitumene elungisiweyo ye-SBS kufuneka bube ngaphezu kwe-170°C.
(2) Iqondo lobushushu bolwakhiwo lomaleko wesitywina sebhitumene akufunekanga libe ngaphantsi kwe-15°C, kwaye ulwakhiwo aluvumelekanga xa kunomoya, inkungu eshinyeneyo okanye iintsuku ezinemvula.
3 ukuphakama komlomo.
(4) Isithuthi sokutywina segrabile esihambelanayo kufuneka sibaleke ngesantya esifanelekileyo kunye nesantya esifanayo. Ngaphantsi kwesi sizathu, izinga lokusasazeka kwezinto zelitye kunye nesibophelelo kufuneka zihambelane.
5
(6) Thumela umntu okhethekileyo ukuba abambe umtshayelo we-bamboo ukuze alandele isithuthi sokutywina se-synchronous chip, aze atshayele amatye atyunyuziweyo ngaphandle kobubanzi bepaveyi (oko kukuthi, ububanzi bebhitumene esasazwayo) kububanzi bokuhamba ngexesha, okanye wongezelele. i-baffle ukukhusela amatye atyumkileyo i-Popup Pave Width.
(7) Xa nasiphi na isixhobo esikwisithuthi sokutywinwa se-synchronous chip sisetyenzisiwe, izitshixo zokhuseleko kulo lonke ukuhanjiswa kwezinto kufuneka zicinywe ngoko nangoko, isixa esishiyekileyo semathiriyeli kufuneka sihlolwe, kunye nokudibanisa ukuchaneka kufuneka kuhlolwe.

Inkqubo yokwakha
(1) Ukuqengqeleka. Umaleko ongangenwa manzi osandul’ ukutshizwa (wafafazwa) awunakuqengqeleka ngoko nangoko, kungenjalo ibhitumene elungisiweyo yobushushu obuphezulu iya kubambelela kumatayara erola yendlela enerabha kwaye ishiye igrabile. Xa iqondo lobushushu lebhitumene elungisiweyo ye-SBS lehla ukuya malunga ne-100°C, irola yendlela enerabha etyibilikayo isetyenziselwa ukuzinzisa uxinzelelo kuhambo olunye lokuya nokubuya, kwaye isantya sokuqhuba yi-5-8km·h-1, ukuze igrabile icinezelwe. kwibhitumene elungisiweyo kwaye idityaniswe ngokuqinileyo.
(2) Ulondolozo. Emva kokuba umaleko wetywina ugangathiwe, akuvumelekanga ngokungqongqo ukuba iimoto zokwakha ziqhoboke ngesiquphe kwaye zijike. Indlela kufuneka ivalwe, kwaye emva kolwakhiwo lwe-bitumen eguquliweyo ye-SBS idityaniswe ngokusondeleyo nolwakhiwo lwamaleko asezantsi, umaleko osezantsi webhitumene kufuneka wakhiwe ngokukhawuleza, kwaye umaleko osezantsi unokuvulwa kuphela kwizithuthi emva komgangatho ophantsi. umaleko ugangathiwe. Kumphezulu womaleko ongangeni manzi uzinziswe ziirola ezinerabha, ibhondi phakathi kwegrabile nebhitumene yomelele kakhulu, kwaye i-ductility (elastic recovery) yebhitumene elungisiweyo inkulu, enokulibazisa ngempumelelo kwaye inciphise iintanda zomaleko wesiseko. Kumaleko womphezulu ngokudlala indima yomaleko ofunxa uxinzelelo olubonakalisa iintanda.
(3) Ukuhlolwa komgangatho kwindawo. Uhlolo lwenkangeleko lubonisa ukuba isaleko sebhitumene yomaleko webhitumene kufuneka ilingane ngaphandle kokuvuza kwaye umaleko we-oyile utyebile kakhulu; umaleko webhitumene kunye nomaleko odibeneyo wegrabile enobungakanani obunye kufuneka usasazwe ngokulinganayo ngaphandle kobunzima obunzima okanye ukuvuza. Ukufunyaniswa kwexabiso lokutshiza kwahlulwe kwisixa esipheleleyo sokubhaqwa kunye nenqaku elinye; owokuqala ulawula umlinganiselo wokufefa wecandelo lokwakha, ukala igrabile nebhitumene, ubala indawo yokufefa ngokobude nobubanzi becandelo lokufefa, emva koko ubale ubungakanani bokufefa kwecandelo lokwakha. Ireyithi yesicelo xa iyonke; le yokugqibela ilawula iqondo lesicelo senqaku kunye nokufana.
Ukongeza, ubhaqo lwendawo enye luthatha indlela yokubeka ipleyiti: oko kukuthi, sebenzisa iteyiphu yentsimbi ukulinganisa indawo yesikwere (ipleyiti ye-enamel), kunye nokuchaneka yi-0.1cm2, kunye nobunzima be-square. ipleyiti yesikwere ikalwa ukuya kutsho kwi-1g; ngokungakhethiyo khetha indawo yokulinganisa kwicandelo eliqhelekileyo lokutshiza , beka iipleyiti ezi-3 zesikwere ngaphakathi kobubanzi obusasazwayo, kodwa kufuneka baphephe umkhondo wevili lesithuthi lokutywina, umgama phakathi kwe-3 square plate yi-3 ~ 5m, kunye nenombolo yestake indawo yokulinganisa apha imelwe yindawo ephakathi kwepleyiti yesikwere; i-synchronous chip sealing truck yakhiwe ngokwesantya esiqhelekileyo sokwakha kunye nendlela yokusasaza; thatha i-square plate efumene iisampulu, kwaye ufefe ibhitumene kunye negrabile kwindawo engenanto ngexesha, ubunzima bepleyiti yesikwere, bhitumene, kunye negrabile, ngokuchanekileyo ukuya kwi-1g; Bala ubunzima bebhitumene kunye negrabile kwipleyiti yesikwere; khupha igrabile ngeengqayi kunye nezinye izixhobo, cwina kwaye unyibilikise ibhitumene kwi-trichlorethylene, yomise igrabile kwaye uyilinganise, kwaye ubale ubunzima begrabile kunye nebhitumene kwisikwere pleyiti; Isixa selaphu, bala umndilili wexabiso le-3 parallel experiments.

Siyazi ukuba iziphumo zovavanyo zibonisa ukuba siyazi ukuba isixa sebhitumene esitshizwe yi-synchronous gravel sealer imoto izinzile noko kuba ayichatshazelwa sisantya sesithuthi. I-Sinoroader synchronous sealer truck Isixa sethu sokusasaza ilitye elityumkileyo sineemfuno ezingqongqo kwisantya sesithuthi, ngoko ke umqhubi kufuneka aqhube ngesantya esingaguqukiyo ngesantya esithile.