Kugadzirwa

Kwemakore makumi matatu nemashanu apfuura, indasitiri yesimbi nesimbi yakaona shanduko huru.Muna 1980 716 mln matani esimbi akagadzirwa uye nyika dzinotevera dzaive pakati pevatungamiriri: USSR (21% yepasi rose kugadzirwa kwesimbi), Japan (16%), USA (14%), Germany (6%), China (5% ), Italy (4%), France nePoland (3%), Canada neBrazil (2%).Maererano neWorld Steel Association (WSA), muna 2014 kugadzirwa kwesimbi munyika kwakasvika 1665 mln tonnes - kuwedzera kwe1% mukuenzanisa ne 2013. Rondedzero yenyika dzinotungamirira dzakashanduka zvikuru.China inotungamira uye iri mberi kune dzimwe nyika (60% yekugadzirwa kwesimbi pasi rose), mugove wedzimwe nyika kubva kumusoro-10 ndeye 2-8% - Japan (8%), USA neIndia (6%), South. Korea neRussia (5%), Germany (3%), Turkey, Brazil neTaiwan (2%) (ona Mufananidzo 2).Kunze kweChina, dzimwe nyika dzakasimbaradza zvinzvimbo zvepamusoro-soro iIndia, South Korea, Brazil neTurkey.

Kushandiswa

Simbi mumhando dzayo dzese (simbi yakakandwa, simbi uye simbi yakakungurutswa) ndiyo inonyanya kushandiswa kuvaka muhupfumi hwenyika hwazvino.Inochengetedza nzvimbo inotungamira mukuvaka pamberi pehuni, ichikwikwidza simende uye ichidyidzana nayo (ferroconcrete), uye ichiri kukwikwidza nemhando nyowani dzezvivakwa zvekuvaka (polimers, ceramics).Kwemakore akawanda, indasitiri yeinjiniya yanga ichishandisa ferrous zvinhu kupfuura chero imwe indasitiri.Kushandiswa kwesimbi kwepasi rose kunoratidzwa nekukwira kumusoro.Avhareji yekukura kwehuwandu hwekushandisa muna 2014 yaiva 3%.Kuderera kwekukura kwekukura kunogona kuonekwa munyika dzakabudirira (2%).Nyika dzichiri kusimukira dzine mwero wepamusoro wekushandiswa kwesimbi (1,133 mln tonnes).