Isiteshi sokuxuba itiyela siletha ukunethezeka kubantu. Ngikusho ngani lokho? Ngoba wonke umuntu kumele azi ukuthi uma ufuna ukusebenzisa itiyela kumele ulisebenzise lisashisa, ngoba ngeke lisebenze uma libanda, futhi alikwazi ukusetshenziswa uma liqinile, ngakho lidinga ukushiswa nokunyakaziswa ukuze kwenze kube nzima kakhulu ngesikhathi sokusebenzisa.
Ake sikhulume ngesiteshi sokuxuba itiyela kuqala. Kuphela ngokusiqonda ngamunye ngamunye singasiqonda kangcono isiteshi sokuxuba itiyela esizokhuluma ngaso namuhla. I-asphalt iwuketshezi oluphilayo olunsundu ngokumnyama olune-viscosity oluhlanganiswe ama-hydrocarbon nezinto ezingezona ezensimbi zezisindo zamangqamuzana ahlukene. Ingaphezulu limnyama futhi liyancibilika ku-carbon disulfide. Ngaso leso sikhathi, iphinde ibe yi-organic gelling material, engangeni manzi, ifaka umswakama futhi ivikele ukugqwala. Ingahlukaniswa ikakhulukazi ngezinhlobo ezintathu: itiyela lamalahle, i-petroleum asphalt kanye ne-asphalt yemvelo. I-asphalt isetshenziswa kakhulu ezimbonini ezinjengokumboza, amapulasitiki, irabha, nemigwaqo egandayiwe.
Imigwaqo yethu yakhiwe ngetiyela, esingabuye sibizwe ngetiyela, ngakho sihlala sithi imigwaqo yetiyela. Izinga lokushisa le-asphalt liphezulu kakhulu lapho kuthululwa imigwaqo, ngoba emazingeni okushisa aphansi, kunzima kunetshe futhi akukwazi ukusetshenziswa nhlobo, ngakho-ke kudingeka isiteshi sokuxuba i-asphalt. Imishini yokuxuba i-asphalt ikakhulukazi iqukethe i-batching system, uhlelo lokomisa, uhlelo oluvuthayo, uhlelo lokukala nokuxuba, uhlelo lokuhlinzeka ngetiyela, uhlelo lokuhlinzeka ngempushana, isisilo somkhiqizo ophelile kanye nohlelo lokulawula. Isiteshi sokuxuba i-asphalt siyindawo ebaluleke kakhulu yokwakha umgwaqo. Isiteshi sokuxuba i-asphalt siyisethi ephelele yemishini yokukhiqiza ngobuningi bakakhonkolo we-asphalt, futhi lezi zisetshenziswa ngokuvamile zisetshenziswa ekuthululeni okukhulu kwemigwaqo usimende. Ingakwazi futhi ukukhiqiza ingxube yetiyela, ingxube yetiyela enombala, njll. Kuyinto edingekayo yokwakha imigwaqo emikhulu, imigwaqo yebanga, imigwaqo kamasipala, izikhumulo zezindiza, namachweba. Manje wonke umuntu uyasiqonda isiteshi sokuxuba itiyela.
