Sanadihii la soo dhaafay, dusha sare ee yaryar ayaa noqday mid aad iyo aad u ballaaran oo loo isticmaalo habka dayactirka ka hortagga ah. Horumarinta tignoolajiyada yar-yar ee dusha sare waxay soo martay qiyaas ahaan heerarka soo socda ilaa maantadan la joogo.
Marxaladda koowaad: aayar-dillaac iyo shaabad qulqulaya oo dejisa aayar. Inta lagu jiro Qorshaha Sideedaad ee Shanta Sano, tignoolajiyada Emulsifier Asphalt ee laga soo saaray dalkaygu ma ahayn mid heerkii loo baahnaa, iyo emulsifiers qunyar u dillaacay oo ku salaysan lignin amine ayaa inta badan la isticmaalayey. Daamurka la isku daray ee la soo saaray waa nooc tartiib tartiib ah oo u dejisan nooca emulsified, sidaa darteed waxay qaadataa waqti dheer in la furo taraafikada ka dib marka shaabaddii slurry la dhigo, saameynta dhismaha ka dib waa mid aad u liidata. Marxaladani waa qiyaastii 1985 ilaa 1993.
Marxaladda labaad: Cilmi-baarista joogtada ah ee jaamacadaha waaweyn iyo machadyada cilmi-baarista sayniska ee warshadaha waaweyn ee waddooyinka, waxqabadka emulsifiers ayaa soo fiicnaaday, waxaana si tartiib tartiib ah u dillaacay iyo emulsifiers daamur ah oo degdeg ah ayaa bilaabay inay soo baxaan, gaar ahaan anionic sulfonate emulsifiers. Waxa loo yaqaan: dildilaaca qunyar ah iyo dejinta degdega ah ee slurry seal. Waqtigu wuxuu socday qiyaastii 1994 ilaa 1998.

Marxaladda saddexaad: Inkasta oo waxqabadka emulsifier-ku uu soo fiicnaaday, shaabadda slurry weli ma buuxin karto shuruudaha waddooyinka kala duwan, iyo shuruudo sare ayaa loo soo bandhigay tilmaamayaasha waxqabadka ee hadhaaga asphalt, sidaas awgeed fikradda shaabada slurry ee la beddelay ayaa soo baxday. Styrene-butadiene cinjirka ama cinjirka chloroprene ayaa lagu daraa asphalt-ka emulsified. Waqtigaan, ma jiraan shuruudo sare oo loogu talagalay qalabka macdanta. Marxaladani waxay socotaa qiyaastii 1999 ilaa 2003.
Marxaladda afraad: soo-baxa-yar-yar-yar. Ka dib markii shirkadaha ajnabiga ah sida AkzoNobel iyo Medvec ay soo galeen suuqa Shiinaha, shuruudahooda agabka macdanta iyo asphalt-ka emulsified ee loo isticmaalo shaabada slurry waxay ka duwanaayeen shaabada slurry. Waxa kale oo ay shuruudo sare saaraysaa xulashada alaabta ceeriin. Basalt waxaa loo xushay sida maaddada macdanta, shuruudaha ciidda sare ee u dhigma, asphalt emulsified modified iyo xaalado kale ayaa loo yaqaan 'yar-surfacing. Waqtigu waa 2004 ilaa hadda.
Sanadihii la soo dhaafay, hoos u dhigista buuqa yar yar ayaa u muuqday in uu xalliyo dhibaatada buuqa ee dusha sare, laakiin codsigu ma badna saameyntuna waa mid aan fiicnayn. Si loo hagaajiyo jilicsanaanta iyo jeexjeexyada isku-dhafka ah, fiber-yar-yar-yar ayaa soo muuqday; si loo xalliyo dhibaatada saliida baabi'inta dusha sare ee wadada asalka ah iyo isku dhejinta udhaxeysa isku-dhafka iyo dusha sare ee asalka ah, fiilada-yar-yar-yar-yar-yar oo fiber ah ayaa ku dhashay.
Dhammaadkii sanadka 2020, wadarta masaafada wadooyinka waaweyn ee dalka oo dhan waxay gaadhay 5.1981 milyan kiiloomitir, kuwaas oo 161,000 kiiloomitir ay u furnaayeen isu socodka wadooyinka. Waxaa jira qiyaastii shan xalal dayactir ka hortag ah oo diyaar u ah laamiga asphalt:
1. Waxay yihiin nidaamyada lakabka ceeryaamo xidhidh: lakabka ceeryaamo xidhidh, lakabka ciidda xidhidh, iyo lakabka ceeryaamo-xidhid ciid-ka kooban;
2. Nidaamka xidhitaanka dhagax-dhagaxa: lakabka daboolida daamur ee daamur leh, lakabka dhalada kulul ee kulul, lakabka daboolida daamur ee wax laga beddelay, lakabka daboolida daamur ee caag ah, lakabka xargaha fiber-ka, dusha la safeeyey;
3. Nidaamka xidhidhiyaha slurry: xidhidhiyaha slurry, xidhid slurry oo wax laga beddelay;
4. Nidaamka muraayadda-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar) ah,-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar) ah-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar) ah-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar-yar ah),iyo-faybar-yar-yar-yar-yar-yar-yar;
5. Nidaamka jiifka kulul: daboolka lakabka khafiifka ah, NovaChip lakabka xidhashada aadka u dhuuban.
Waxaa ka mid ah, micro-surfacing ayaa si ballaaran loo isticmaalaa. Faa'iidooyinkeeda ayaa ah in aysan kaliya haysan kharashyada dayactirka oo hooseeya, laakiin sidoo kale waxay leedahay muddo gaaban oo dhismo ah iyo saameyn daaweyn oo wanaagsan. Waxay wanaajin kartaa hab-dhaqanka ka-hortagga barafka ee waddada, ka-hortagga qulqulka biyaha, hagaajinta bilicda iyo habsami-u-socodka waddada, iyo kordhinta awoodda rarka ee waddada. Waxay leedahay faa'iidooyin badan oo muuqda xagga ka-hortagga gabowga laamiga iyo fidinta nolosha adeegga ee laamiga. Habkan dayactirka ah ayaa si weyn looga isticmaalaa dalalka horumaray sida Yurub iyo Maraykanka iyo sidoo kale Shiinaha.