Mamiriro Migwagwa kunoenderana zvaidiwa kuti Asphalt paving michina

Chokwadi kuti vakadaro Asphalt, vanhu vanozivikanwa kwenguva refu. Natural Asphalt (gomo nebwe dzine musanganiswa bhitumini vane chicherwa zvinhu) rakashandiswa kunyange VaIjipiti vekare uye VaFenikiya somunhu bhainda pakuvaka zvivako uye ngarava. South American maIndia vakashandisa Asphalt kuti impregnate magwa avo. Asphalt yaishandiswa navaEgipita nokuda pakuomesa zvitunha, uye pamusoro wayo East kwainzi mushonga. Uyezve, dzinongoitika Asphalt abudisa kubva paGungwa Rakafa mubhedha, kushandiswa (uye vachiri kushandisa) pakusika varnishes uye pendi.

Kushandisa chakagadzirwa Asphalt (bhitumini musanganiswa nekuumbanidzwa, anodzvinyirirwa ibwe, jecha, chicherwa upfu) sezvo mashoko nokuda mugwagwa tichigadzira akatanga mukupera XIX remakore muEurope USA. Panguva iyoyo takatanga kushandisa Asphalt uye Russia.

Chokwadi, sezvo Asphalt kuisa zvigadzirwa, uye ayo kugadzirwa yava kuchinja kukuru, asi dzinokosha kuramba chete.

Modern mugwagwa kuvaka

Chinonyanya kukosha zvimiso inowanzotorwa motokari ndiwo muitiro pakuita yakasimba mugwagwa pamusoro ehupfumi. Pasina chakaipa turnover hwemazuva Migwagwa kwakaoma zvisingaiti, uye saka kuvakwa mugwagwa ndiyo kuchikosheswa chero nyika.

Compliance Asphalt kuisa zvemichina uye ayo kunyatsoshanda zvine chokuita zvakananga kugadzirwa uye unhu kudzora zvinhu zvinoshandiswa kuumba Asphalt pavements. Kutadza kutevedza kunoguma vakurumidze kukundikana kwatiri.

The kubudirira kwesayenzi yemazuva ano zvinoita kuti nguva kuvandudza ave chinoumba Kuronga Asphalt, uye yose gadziriro kugadzirwa mugwagwa mabasa.

Kana isu kutaura mabikirwo Asphalt, zvaitwa mumatanho mana:

• nokudzidziswa hwaro;
• muchidziisa Asphalt kupfavisa nayo;
• achiisa pamusoro Asphalt pamusoro nechimwe;
• Rolling-Asphalt compactor kuti compacting nokuputsa nayo.

Panopera matanho aya, Asphalt anofanira kuva imwe nguva asati okurapa kwakakwana uye kuwana nepurani simba.

Michina iyi zvinoreva kwazvo rairambidzwa sezvakarayirwa nezviito, zvaidiwa okunze uye Meteorological constraints. Kukundikana kutevera zvinodiwa izvi (semuenzaniso, havachanyatsogoni kuisira kutevedzana kana panguva yakaderera tembiricha iri mvura) zvinotungamirira kuti yakarongwa matombo richagara zvishoma pane dzose.

Kunyange kunyatsotevedza vose Asphalt michina hazvivimbisi kuti mugwagwa pamusoro hakurevi kumwe kuvariritira uye nenguva kugadziriswa.

Kushandiswa chando Asphalt kuti mugwagwa kugadziriswa

Izvi zvinhu akaonekwa tichishandisa yapfuura munyika yedu. Wakaitwa kubva kwakajairika polymer-dzakachinjwa Asphalt pamwe akawedzera nechando uye plasticizing yokuvirisa. Cold Asphalt kuisa zvigadzirwa yekudyidzana nyore muitiro rokugadzirisa mugwagwa, sezvo anobvumira kuti aite nenzira yakafara tembiricha siyana. Rinogona kuiswa yakaderera tembiricha (-15 ° ^C). Uyezve, mugwagwa mabasa anogona kuitwa ekunze kuchinaya. Paakapa Asphalt kutonhora hakurevi pre-kurapwa uye lähikuva unhani akagadzira. Asi chinonyanya kukosha zvinobatsira kuti kuchitonhora Asphalt, - mabikirwo nokuisa ichi zvinhu hakurevi chaiyo michina. Zvaringana kudira pothole kana gomba uye inoputswa nefoshoro, pashure izvo polymerization kwacho kunotanga uye Asphalt anoomesa nokukurumidza. Kana mutengo, kana achienzaniswa mari nguva nenguva vanokwanisa migwagwa pamwe kwakajairika Asphalt, zvinoitika kuti kushandiswa chando Asphalt achava kunyange isingadhuri.