Iterambere no gushyira mu bikorwapolycarboxylic superplasticizerni Byihuse. By'umwihariko mu mishinga minini kandi y'ingenzi nko kubungabunga amazi, hydropower, hydraulic engineering, ubwubatsi bwo mu nyanja, n'ibiraro, polycarboxylate superplastisizer ikoreshwa cyane.
Nyuma ya sima ivanze namazi, isima ya sima ikora imiterere ya flocculation bitewe nuburemere bwa molekuline yibice bya sima, kuburyo 10% kugeza 30% byamazi avanze bipfunyika mubice bya sima kandi ntibishobora kugira uruhare mubitemba no gusiga amavuta. , bityo bigira ingaruka kuri Flowability ya beto ivanze. Iyo hiyongereyeho supreplastique, molekile zigabanya amazi zirashobora kwerekanwa neza hejuru yubutaka bwa sima, kuburyo ubuso bwibice bya sima bifite charge imwe (mubisanzwe byishyurwa nabi), bigatera kwanga electrostatike, biteza imbere gutatanya ibice bya sima no gusenya imiterere ya flocculation. , kurekura igice cyamazi apfunyitse kugirango kigire uruhare mugutemba, bityo byongere neza neza amazi yimvange ya beto.
Itsinda rya hydrophilique murikugabanya amazini polar cyane, kubwibyo kugabanya amazi ya adsorption ya firime hejuru yubutaka bwa sima irashobora gukora firime yamazi ihamye hamwe na molekile zamazi. Iyi firime yamazi ifite amavuta meza kandi irashobora kugabanya neza kurwanya kunyerera hagati ya sima, bityo bikarushaho kunoza amazi ya minisiteri na beto.
Hydrophilique ishami ryumunyururu murisuperplasticizerimiterere irambuye mugisubizo cyamazi, bityo igakora hydrophilique itatu-ya adsorption igizwe nubunini runaka hejuru yubutaka bwa sima yamamajwe. Iyo ibice bya sima byegeranye, ibice bya adsorption bitangira guhuzagurika, ni ukuvuga ko inzitizi zidasanzwe zibaho hagati ya sima. Kurenza urugero, niko kwanga steric kwanga, kandi niko inzitizi zibangamira ubumwe hagati ya sima, bigatuma minisiteri na beto Slump ikomeza kuba nziza.
Mugihe cyo gutegura gahunda yapolycarboxylate igabanya amazi, iminyururu imwe yashami yashizwe kuri molekile yumuti ugabanya amazi. Uru ruhererekane rwamashami ntirutanga gusa ingaruka zibangamira gusa, ariko kandi, mubidukikije byo hejuru cyane bya hydrata ya sima, Urunigi rwishami narwo rushobora gucibwa buhoro buhoro, bityo rukarekura aside polikarubisike hamwe ningaruka zo gukwirakwiza, zishobora kunoza ingaruka zo gukwirakwiza uduce twa sima kandi kugenzura igihombo.
Igihe cyo kohereza: Werurwe-29-2024