Lub ntiaj teb' s cement ntau lawm tau nce los ntawm 800 lab tons hauv 1980 txog 1.8 billion tons nyob rau xyoo 2003, thiab cia siab tias yuav nce ntawm qhov nruab nrab txhua xyoo tau nce ntawm 3.6% los ntawm 2020. Cov kev hloov tshuab tsim hauv kev lag luam cement tsis tsuas yog ua tau zoo heev txhim kho kev ua tau zoo thiab kev muaj peev xwm ntawm kev ua cov cement ntau lawm, tab sis kuj tso cov kev xav tshiab rau cov neeg refractories. Kev noj ntawm refractories ib tuj ntawm cov cement tau nqis los ntawm 1.2kg yav dhau los rau 0.58kg ntawm tam sim no, thiab nws cia siab kom poob rau 0.5kg hauv xyoo 2005. Ntxiv rau cov tsoos magnesia cib, magnesia chrome cib, siab alumina cib thiab av nplaum cib, cov pob zeb qis qis castable muaj ntau qhov tseeb pom tseeb ua rau hauv lub taub hau thiab kiln tus Tsov tus tw, cov yeeb nkab txias dua, yeeb lauj tshib thiab hauv qab ntawm decomposer.
Cov teeb meem tseem ceeb ntawm cov refractories rau cov iav kev lag luam yog kev txhim kho ntawm kub txias melting. Kev txhim kho ntawm lub tshuab melting, tshuab siv roj ua hluav taws xob ntau thiab tshuab thev naus laus zis ntawm cov khoom siv arsenic dawb tso rau pem hauv ntej ntau txoj cai nruj rau cov refractories.
Nyob rau hauv xyoo tas los, kev pab cuam lub neej ntawm iav tso cua sov tau zoo dua, thiab ntab khoom ntau lawm kab ntawm cov iav tiaj tus tuaj yeem ntev npaum li 10 xyoo. Cov kev pabcuam lub neej ntawm cov iav cua sov zoo nkauj yog 5-7 xyoo, thiab qhov tshwj xeeb ntawm iav cub tawg yog 2 xyoos. Yog li, refractories yuav tsum muaj cov haujlwm ntawm kev ua haujlwm siab ntawm corrosion, tsis tshua muaj kev cuam tshuam rau cov iav tsis zoo, tsis muaj kuab paug rau ib puag ncig, zoo ruaj khov, thiab pom tseeb txuag lub zog.
