Gushonga no guteka ingingo za asfalt: kuki byiyoroshya mubushyuhe burebure? ​​

Asfalt, uruvange rugoye rwa hydrocarbone, rubura ingingo ityaye kubera ibihimbano byayo. Ahubwo, irerekana ingingo yoroshye (mubisanzwe 40-60 ° C kuri peteroli ya peteroli), ibirenze ibyo bikaba bivuye mu mazi meza. Iyi myitwarire ituruka kumiterere ya conloidal:

Imbaraga za molekile: Ku bushyuhe bwinshi, agace ka peteroli y'amavuta (Maltenes) muri Asfalt kiba amazi menshi, guca intege matrix ikomeye asphaltene. Ibi bigabanya imbaraga zinteruro, bigatera byoroshye.
Ubushyuhe bumva: Vicosity ya Asfalt igabanuka cyane hamwe nubushyuhe. Kurugero, kuri 60 ° C, Asfalt isanzwe irashobora gutakaza 90% yo gukomera kwayo, biganisha ku ruhushya. Ashalts ashalts (urugero, sbs cyangwa ubwoko bwa edugiyo hejuru) irwanya ibi binyuze mumiyoboro ya polymer ituma inyubako zigera kuri 70 ° C cyangwa irenga.
Guteka no kubora:
Asfalt yo kubora mbere yo kugera kubintu bitangaje (munsi ya 470 ° C), kurekura imyuka yuburozi nka bejezene. Rero, ingingo yo guteka ntabwo ifitanye isano kuruta flash point (~ 204 ° C), kikagaragaza ingaruka zo gutwika mugihe cyo gushyushya.

Ingaruka zifatika:

Kunanirwa kwa kaburimbo: ubushyuhe bwo mu mpeshyi 50 ° C burashobora koroshya asfalt, bigatera dicfort ihoraho nko kugenda.
Ibisubizo: Koresha imiyoboro yahinduwe (urugero, SBS) cyangwa kogosha inyongeramuzi kugirango zongere ubushyuhe bwinshi.
Muri make, softels ya asfalt kubera gusenyuka kwa colloidal no guhagarika umutima, bisaba udushya twibintu kugirango turamba.