Taxane webinar ah oo ka socda Ururka Waddooyinka Asphalt ee Qaranka ayaa dejiyay si ay u muujiyaan faa'iidooyinka walxahan soo koraya
Dib-u-warshadaynta taayirku waa habka loo beddelo taayirrada duugga ah ee dhammaadka-nololeed ama aan la rabin oo loo beddelo walxo loo isticmaali karo badeecooyin cusub.Taayirada dhamaadka-noloshu waxay caadi ahaan noqdaan musharraxiinta dib-u-warshadaynta marka ay noqdaan kuwo aan shaqaynayn dartiis ama dhaawacantay oo aan dib loo tuman karin ama dib loo goyn karin.
Marka loo eego warshadaha taayirrada, dib u warshadaynta taayirka waa sheeko guul weyn.Kaydka taayirada qashinka ayaa hoos uga dhacay in ka badan bilyan 1991 ilaa 60 milyan oo kaliya 2017 iyo warshadaha laamiga ayaa ah arrin weyn oo hoos u dhigaysa tirada taayirada meelaha qashinka ah.
Codsiyada caagga ah ee dhulka ayaa lagu tiriyaa 25% isticmaalka taayirka qashinka ah ee 2017. Caag dhulka waxaa loo isticmaalaa in lagu soo saaro tiro ka mid ah badeecooyinka laakiin isticmaalka ugu weyn ee caagga dhulka ayaa loogu talagalay caag asphalt, oo isticmaalaya qiyaastii 220 milyan oo rodol ama 12 milyan oo taayir ah sannadkii.Isticmaalayaasha ugu badan ee caagga asphalt waa gobolada California iyo Arizona, oo ay ku xigto Florida, iyadoo isticmaalka la filayo inuu ku kordho gobolada kale.
Rabadhka taayirka dib loo warshadeeyay (RTR) ee taayirada qashinka ah waxa loo isticmaali jiray asphalt warshadaha laamiyada ilaa 1960-kii.RTR waxa loo isticmaalay sidii wax ka beddelka asphalt-ka iyo wax-ku-darka isku-darka asphalt-ka ee isku-dhafka asphalt-ka iyo kuwa furan iyo daawaynta dusha sare.
Caag taayir ah oo dib loo warshadeeyay ayaa asal ahaan dib loo warshadeeyay kaaso laga dhigay qaybo aad u yar yar si loogu isticmaalo sidii daamur ahaan.Ku darida caagga dhulka hoostiisa ah ee daamurku waxay gacan ka geysan kartaa hagaajinta iska caabbinta burburka, caabbinta barafka, tayada raacitaanka, nolosha laamiga iyo hoos u dhaca heerarka qaylada laamiga.Ku darida caagga dareeraha asphalt-ka waxay dib u dhigtaa gabowga iyo oksaydhaynta xidhaha ka dhasha, taas oo kordhisa nolosha laamiga iyadoo yaraynaysa jabka iyo dildilaaca.
Maareynta iyo gooynta taayirada waa hab si taxadar leh loo qorsheeyay oo la kormeeray si loo soo saaro walxo caag ah oo nadiif ah oo aad u sarreeya.Caag jajaban ayaa lagu soo saaraa hab lagu shiido taayirada caagga ah qaybo aad u yaryar.
Inta hawsha lagu jiro, fiilada xoojinta taayirka iyo fiberku waa la saarayaa.Birta waxaa lagu saaraa birlab, fiberkana waxaa laga saaraa hami.Ka shaqaynta taayirada iyadoo la isticmaalayo jabka qaylo-dhaanta waxa ay ku lug leedahay in la gooyo qaybaha taayirada waaweyn ee yaryar, sida caadiga ah 50 mm, iyada oo la isticmaalayo biro fiiqan.Qaybahan yaryar ayaa markaa barafoobay oo jabay.Qaybaha caagga ah waa la miiray oo loo qaybiyaa jajabyo kala duwan, sida uu qeexay macaamilka.Qaybaha caagga ah ee ka soo baxa ayaa si joogto ah u cabbiran oo aad nadiif u ah.Nidaamyada boorsooyinka otomaatiga ah waxay caawiyaan hubinta miisaanka boorsada saxda ah iyo baabi'inta wasakheynta isdhaafka ah.
Ururka Laamiyada Daamur ee Qaranka (NAPA), ayaa xagaagan martigelin doona Meesha Rubberku Ku Kulmo Taxanaha Webinar-ka Waddada ee caagga taayirka dib loo warshadeeyey iyo daamur.
Waqtiga boostada: Juun-19-2020