Ubushyuhe ni ikintu cy'ingenzi mu mikorere ya eteri ya selulose.
Muri rusange, uko viscosity irushaho kuba nyinshi, ni ko ingaruka nziza zo kubika amazi muri gypsum mortar. Ariko, uko viscosity irushaho kuba nyinshi, ni ko uburemere bwa cellulose ether burushaho kuba bwinshi, kandi uko bigabanuka mu gushonga kwayo bizagira ingaruka mbi ku mbaraga n'imikorere y'ubwubatsi bwa mortar. Uko viscosity irushaho kuba nyinshi, ni ko ingaruka zo gukomera ku mortar zigaragara cyane, ariko ntabwo ari ingano igaragara.
Uko ubushyuhe bwinshi bungana, ni ko ubushyuhe bungana bungana. Mu gihe cyo kubaka, bugaragara nk'ubufata ku gikoresho cyo gukurura no gufatana cyane n'ubutaka. Ariko ntabwo ari byiza kongera imbaraga z'imiterere ya bushyuhe bungana. Byongeye kandi, mu gihe cyo kubaka, imikorere ya bushyuhe bungana n'ubu ...
Ibikoresho by'inkuta ahanini ni inyubako zifite imyenge, kandi zose zifite amazi menshi. Ariko, ibikoresho by'ubwubatsi bya gypsum bikoreshwa mu kubaka inkuta bitegurwa hifashishijwe amazi ku rukuta, kandi amazi anyurwa byoroshye n'urukuta, bigatuma ibura ry'amazi akenewe mu kumena gypsum, bigatera ingorane mu kubaka sima no kugabanya imbaraga z'imigozi, bigatera imiyoboro, ibibazo by'ubwiza nko gupfuka no gutobora. Kunoza uburyo amazi abikwa mu bikoresho by'ubwubatsi bya gypsum bishobora kongera ubwiza bw'inyubako n'imbaraga zo gufatanya n'urukuta. Kubwibyo, ibikoresho bibungabunga amazi byabaye kimwe mu bintu by'ingenzi bivanga ibikoresho by'ubwubatsi bya gypsum.
Gusigwa gypsum, gypsum ifatanye, gypsum ifata amazi, gypsum putty n'ibindi bikoresho by'ifu y'ubwubatsi birakoreshwa. Kugira ngo byorohereze kubaka, hongerwamo ibikoresho bigabanya amazi mu gihe cyo gukora kugira ngo byongere igihe cyo kubaka gypsum. Kubera ko gypsum ivangwa na Retarder, ibi bibuza inzira yo guhumeka ya gypsum ya hemihydrate. Ubu bwoko bwa gypsum slurry bugomba kubikwa ku rukuta amasaha 1 kugeza kuri 2 mbere yuko rugwa. Inkuta nyinshi zifite ubushobozi bwo kwinjiza amazi, cyane cyane inkuta z'amatafari na sima ihumeka. Urukuta, ikibaho cyo gukingira amazi gifite imyenge n'ibindi bikoresho bishya byoroheje ku rukuta, bityo hagomba gukorwa uburyo bwo kubika amazi ku rukuta kugira ngo hirindwe ko igice cy'amazi mu rukuta cyakwimurirwa ku rukuta, bigatera kubura amazi no kutagira amazi ahagije iyo urukuta rwa gypsum rwakomeye. Bitera gutandukana no gushibuka kw'aho urukuta ruhurira na gypsum. Kongeramo ibikoresho bifata amazi ni ukugira ngo hagumane ubushuhe buri mu rukuta rwa gypsum, kugira ngo hamenyekane uburyo urukuta rwa gypsum ruhura n'amazi ku rukuta, kugira ngo hamenyekane imbaraga zo guhuza. Ibintu bikunze gukoreshwa mu kubika amazi ni ether za selulosi, nka: methyl cellulose (MC), hydroxypropyl methyl cellulose (HPMC), hydroxyethyl methyl cellulose (HEMC), nibindi. Byongeye kandi, polyvinyl alcohol, sodium alginate, modified starch, diatomaceous earth, rare earth powder, nibindi bishobora no gukoreshwa mu kunoza imikorere yo kubika amazi.
Igihe cyo kohereza: Gashyantare-28-2023