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Gukoresha polycarboxylate Superplasticizer muri gypsum

Iyo aside polycarboxylic ishingiye kuri super-plastique ikora neza (kugabanya amazi) hiyongereyeho 0.2% kugeza 0.3% byubwinshi bwibikoresho bya sima, igipimo cyo kugabanya amazi gishobora kugera kuri 25% kugeza 45%. Muri rusange abantu bemeza ko aside polycarboxylique ishingiye ku buryo bunoze bwo kugabanya amazi igabanya imiterere ifite ibimamara, bitanga ingaruka zikomeye zo guhagarika ibice bya sima cyangwa ibicuruzwa biva mu sima, kandi bigira uruhare mu gukwirakwiza no gukomeza gukwirakwiza sima. Ubushakashatsi bwibintu biranga adsorption yibintu bigabanya amazi hejuru yubutaka bwa gypsumu hamwe nuburyo bwabo bwo gukwirakwiza-adsorption bwerekanye ko aside polycarboxylic ishingiye kuri aside irike cyane igabanya amazi ni ibimamara bimeze nkibimamara, hamwe na adsorption nkeya hejuru ya gypsumu ningaruka mbi yo kwanga amashanyarazi. Ingaruka zayo zo gukwirakwiza ahanini zituruka ku ngaruka zibangamira urwego rwa adsorption. Ikwirakwizwa ryakozwe ningaruka zidasanzwe zibangamira hydrata ya gypsumu, bityo ikagira ituze ryiza.

polycarboxylate Superplasticizer

Isima ifite igenamigambi-iteza imbere muri gypsumu, izihutisha igihe cyo gushiraho gypsumu. Iyo igipimo kirenze 2%, bizagira ingaruka zikomeye kumazi yo hambere, kandi amazi azagenda yangirika hamwe no kwiyongera kwa dosiye ya sima. Kubera ko sima ifite igenamigambi-riteza imbere kuri gypsumu, kugirango ugabanye ingaruka ziterwa na gypsum igihe cyo gutembera kwa gypsumu, umubare ukwiye wa gypsum wongeyeho kuri gypsumu. Amazi ya gypsumu yiyongera hamwe no kwiyongera kwa dosiye ya sima; kongeramo sima byongera ubunyobwa bwa sisitemu, bigatuma kugabanya amazi bitandukana byihuse kandi byuzuye muri sisitemu, kandi ingaruka zo kugabanya amazi zongerewe cyane; icyarimwe, kubera ko amazi akenerwa na sima ubwayo ari make, bihwanye no kongera igipimo cyamazi-sima munsi y’amazi angana, nayo azongera umuvuduko muke.
Igabanya amazi ya Polycarboxylate ifite itandukaniro ryiza kandi irashobora guteza imbere cyane amazi ya gypsumu kuri dosiye nkeya. Hamwe no kwiyongera kwa dosiye, amazi ya gypsumu yiyongera cyane. Kugabanya amazi ya Polycarboxylate bifite ingaruka zikomeye zo kudindiza. Hamwe no kwiyongera kwa dosiye, igihe cyo gushiraho cyiyongera cyane. Hamwe ningaruka zikomeye zo kugabanya amazi ya polycarboxylate igabanya amazi, munsi yikigereranyo kimwe cyamazi na sima, kwiyongera kwa dosiye bishobora gutera ihinduka rya kristu ya gypsumu no kugabanuka kwa gypsumu. Imbaraga za flexural na compressive imbaraga za gypsum zigabanuka hamwe no kwiyongera kwa dosiye.
Polycarboxylate ether igabanya amazi igabanya umuvuduko wa gypsumu kandi igabanya imbaraga zayo. Kuri dosiye imwe, kongeramo sima cyangwa calcium oxyde muri gypsum biteza imbere amazi. Ibi bigabanya igipimo cyamazi na sima, byongera ubucucike bwa gypsumu, bityo imbaraga zayo. Ikigeretse kuri ibyo, ingaruka zishimangira ibicuruzwa biva muri sima kuri gypsumu byongera imbaraga zayo zo guhindagurika. Kongera urugero rwa sima na calcium oxyde ya calcium byongera umuvuduko wa gypsumu, kandi sima ikwiye irashobora kuzamura imbaraga zayo cyane.
Iyo ukoresheje polycarboxylate ether igabanya amazi muri gypsumu, ukongeramo urugero rukwiye rwa sima ntabwo byongera imbaraga gusa ahubwo binatanga amazi menshi hamwe ningaruka nkeya kumwanya wabyo.


Igihe cyo kohereza: Kanama-06-2025