Kuyambira m'ma 1940,simenti ya wayaanayamba kugwiritsidwa ntchito m'makampani opanga zombo.Pakalipano, sikuti amagwiritsidwa ntchito pomanga zombo, komanso nkhawa zambiri.Iwo amadziwika kuti ufulu kashiamu okusayidi mu simenti clinker zimakhudza bata, chifukwa ufulu kashiamu okusayidi akuyamba hydrate pambuyo kuumitsa simenti, buku la madzi ake biliyoni mankhwala (kashiamu hydroxide) kuonjezera 1.5 ~ 2.0 nthawi, kotero kuti simenti kuumitsa thupi kuphulika, zomwe zimapangitsa kuti simenti ikhale yosakhazikika.
Choncho, zikhoza kuganiziridwa kuti ngati ufulu calcium okusayidi mu simenti kuumitsa kusowa hydration m'tsogolo, ndiye izo sizidzachititsa vuto osauka bata simenti.Deta yoyenera ikuwonetsa kuti mphamvu ya calcium oxide yaulere mu phulusa lamoto pa bata ndi yopepuka kuposa ya calcium oxide yaulere mu clinker.Zitha kuwoneka kuti kuchuluka kwa hydration kwa mitundu iwiri ya calcium oxide yaulere ndi yosiyana.Mlingo wa hydration wa calcium oxide waulere mu phulusa lamoto ndiwofulumira.Chimodzi mwa zifukwa ndi chakuti kutentha kwa phulusa la ng'anjo kumakhala kotsika kusiyana ndi clinker ndipo phulusa la ng'anjo limakhala loyaka.Kuwala koyaka kashiamu oxide ndikosavuta kuthira kuposa kutentha kwa calcined calcium oxide.
Chovalacho chimakhala chocheperako ngati chikutidwa.Zomwe zili mu calcium oxide yaulere mu phulusa la ng'anjo ndizokwera kwambiri, ndipo ndizosavuta kuthira madzi kuti zipange calcium hydroxide yokhala ndi mphamvu yokoka yaying'ono, yomwe imakhudzanso mpweya wake m'madzi ozungulira.Imagwiritsidwa ntchito pomanga uinjiniya, uinjiniya wa hydraulic, kapangidwe kazinthu ndi ma mesh wama waya ndi ~ ya kapangidwe ka zitsulo zachitsulo za simenti, ndi chinthu chokhazikika chokhazikika, kugawa yunifolomu muzowonongeka (matope a simenti), Taiwan ndi matope a simenti. , mphamvu pamene mapindikidwe ophatikizana, ndi li amakhudzana wina ndi mzake, amapereka masewera athunthu kuzinthu zophatikizika, Mitundu ingapo yamagulu okhala ndi zinthu zabwino kwambiri amapangidwa.
Nthawi yotumiza: 30-07-21