Kwiminyaka yoo-1980, ngenxa yokunqongophala kweiimveliso zekhabhonikunye nezinga lenzuzo ephezulu yeemveliso zekhabhoni, amashishini ekhabhoni ayenenzuzo entle kwezoqoqosho, kwaye amashishini ekhabhoni anyuka ngokukhawuleza kulo lonke ilizwe.Nangona kunjalo, ngenxa yokunqongophala kwecandelo lekhabhoni elizenzekelayo, isikali soshishino lwekhabhoni sincinci, kunzima ukwenza amandla asebenzayo okukhuphisana.Ukongeza, kukho umthamo ogqithisileyo weemveliso eziphantsi, ukubonelela kunye nokungonelanga kweemveliso eziphezulu, kunye nesakhiwo seshishini lekhabhoni elingenangqiqo.Ithemba lophuhliso lwezityalo zekhabhoni lihambelana ngokusondeleyo nenkqubo ye-high-tech carbon batching automatic.

Izixhobo zekhabhoni kunye neemveliso zekhabhoni zizixhobo zekhabhoni.Ubume babo beekhemikhali, iimpawu ze-morphological kunye neempawu zomzimba kunye neekhemikhali zihluke kakhulu ngenxa yemithombo eyahlukeneyo kunye nobuchule bokuvelisa.Ngokwesimo somzimba sinokwahlulwa zibe yimathiriyeli ekrwada eqinileyo (i-aggregate) kunye nezinto ezingamanzi ekrwada (izinto zokuncamathelisa kunye ne-impregnators).

Phakathi kwazo, izinto eziluhlaza zeemveliso zekhabhoni zinokwahlulwa zibe: izinto ezininzi zomlotha kunye nezinto ezincinci zomlotha ngokomxholo wokungcola kwe-inorganic.Isiqulatho sothuthu lwemathiriyeli yothuthu oluphantsi luhlala lungaphantsi kwe-1%, njenge-petroleum coke, i-asphalt coke, njl. njlcoke metallurgical, i-anthracite kunye nokunye.Ukongeza, izinto ezibuyiswayo kwimveliso, njengokucholwa kwegraphite, zinokusetyenziswa njengezinto eziqinileyo.Ngenxa yeendima ezahlukeneyo kunye nokusetyenziswa kwezixhobo ezahlukeneyo zemathiriyeli, iimfuno zabo zomgangatho nazo zahlukile.