Gypsum retarder
Gypsum retardants igira uruhare runini mubikorwa byo kubaka no kubaka ibikoresho byubaka, bigamije kugenzura igihe cyagenwe cyibicuruzwa bishingiye kuri gypsumu kugirango bikore neza kandi bishyirwe mubikorwa. Muri ibyo bidindiza, acide organic, umunyu wa elegitoronike, fosifeti yibanze, na proteyine nibice byingenzi bizwi neza. Acide ngengabuzima izwi cyane ikoreshwa nka retarders irimo aside citric, sodium citrate, aside tartaric, potassium tartrate, acide acrylic, na sodium acrylate. Muri iki cyiciro, aside citricike hamwe nu munyu wa sodiumi byitabiriwe cyane bitewe nuburyo bukomeye bwo kudindiza bwerekanwe no kuri dosiye nkeya. Ubu buryo bukomeye bugira akamaro cyane cyane kubikorwa bitandukanye bya gypsumu, kuko byoroshya igihe kinini cyakazi mugihe gikomeza ubuziranenge bwibicuruzwa byanyuma. Usibye acide organic, retarders ya fosifate nka sodium hexametaphosphate na sodium polyphosphate ikoreshwa cyane. Ibi bikoresho nibyingenzi mugukora ibicuruzwa bya gypsumu, harimo gypsumu ihujwe, gypsum putty, nibindi bikoresho bigira uruhare mugukora ibikoresho byubaka gypsumu. Igikorwa cyibanze cyaba fosifate ni ukugabanya umuvuduko wa gypsumu, bigatuma habaho kugenzura neza mugihe cyo kuvanga no gusaba. Mugushira mubikorwa ingamba zidindiza, abayikora barashobora kunoza imikorere yibicuruzwa bya gypsumu, bityo bakazamura imikorere yibikorwa byubwubatsi kandi bakemeza ko imitungo yubatswe igerwaho. Gukenera kwizerwa kandi bifatika byatumye ubushakashatsi bwimbitse muri kano karere, cyane cyane bwibanda ku mikoranire yibi bikoresho na gypsumu. Ibyavuye mu bushakashatsi byerekana ko imiterere ya molekuline yabadindiza igira uruhare runini mu mikorere yabyo, biganisha ku guhanga udushya mu gushyiraho inyungu nyinshi. Mugihe inganda zubwubatsi zikomeje gutera imbere, icyifuzo cyibicuruzwa byiza bya gypsumu biramba. Kubera iyo mpamvu, iterambere no gukoresha ibikoresho bigezweho byo kudindiza ni ngombwa kugirango byuzuze ibisabwa bikenerwa mu mishinga y'ubwubatsi bugezweho. Byongeye kandi, igishushanyo mbonera cy’ibidukikije cyibikoresho kirimo kugenzurwa, bigatuma abashakashatsi bashakisha uburyo burambye hamwe n’ibinyabuzima bishobora kwangirika kubisanzwe. Impirimbanyi hagati yingaruka ningaruka ku bidukikije ningirakamaro kuko abayikora bagamije gutanga ibisubizo byiza bya gypsumu bihuye nintego zirambye zinganda. Muri rusange, ikoreshwa rya gypsum retardants, cyane cyane acide organic, umunyu ushonga, na fosifate, nikintu cyingenzi cyibikoresho byubaka gypsumu byongera imikoreshereze yabyo. Mugukoresha ibikoresho bitandukanye bidindiza, abubatsi barashobora kwemeza uburyo bwiza bwo gukoresha no kurinda ubusugire no kuramba kwinzego. Gukomeza gutera imbere mu kwiga ibijyanye no kudindiza gypsumu ntabwo byongera imikorere y’ibicuruzwa gusa ahubwo binagira uruhare mu buryo burambye mu nganda z’ubwubatsi, amaherezo biganisha ku musaruro mwiza haba mu mikorere ndetse n’inshingano z’ibidukikije. Mu gusoza, gusobanukirwa ubwoko butandukanye bwa gypsum retardants ikoreshwa ubu ni ngombwa kubafatanyabikorwa mu nzego z’ubwubatsi, kuko ibaha imbaraga zo guhitamo inyongeramusaruro zikwiye zigera ku bisubizo bifuza mu gihe bakurikiza imikorere irambye. Ubu bumenyi buteza imbere urwego rwibikoresho byubwubatsi, bikareba ko ejo hazaza h’umusaruro wa gypsumu urangwa no guhanga udushya, gukora neza, no gutekereza ku bidukikije.
