Kupfuura simende yegrey yakajairika kune simende chena, chinhu chekuvaka chakasarudzika chinokosheswa neruvara rwayo rwakachena uye magadzirirwo akasiyana-siyana. Kuchena kwayo kwakasiyana kunobva mukusarudza kwakasimba kwezvinhu zvakabikwa—vagadziri vanoshandisa limestone, kaolin ivhu, uye silica ine iron oxide shoma nezvimwe zvinhu zvinokonzera mavara.
Kugadzirwa kunoda kunyatsorongeka: mafuta akaita segasi rechisikigo anodzivirira kusvibiswa, nepo michina yekukuya yeceramic kana yematombo inodzivirira kusviba kwesimbi. Mushure mekunyungudika pa1450°C kuti iite clinker, gypsum inowedzerwa isati yakuyiwa zvakanaka kuti iwane kuchena kwaunoda, ichiiswa muzvikamu zvina.
Kunyangwe ichifananidzwa nesimende yegrey, mashandisirwo ayo ekushongedza asina kusimba: kubva pakupenda kwezvivakwa uye pasi pevhu kusvika kuzvifananidzo nezvigadzirwa zvesimende zvine mavara. Inosimudzirawo kushanda zvakanaka kwesimba kuburikidza nechiedza uye inobvumira kusanganisa pigment ine simba kune magadzirirwo akagadzirwa. Musanganiswa wesainzi nehunyanzvi, simende chena inoramba ichisimudzira kugona kwekuvaka kwemazuva ano.
Nguva yekutumira: Gumiguru-09-2025