Kwivanga bifite ingaruka nziza mugutezimbere imikorere yubwubatsi bwumye-buvanze. Ifu ya redispersible latex ikozwe muri emulion idasanzwe ya polymer nyuma yo kumisha. Ifu yumye ya latx ni uduce tumwe na tumwe twa 80 ~ 100mm zegeranijwe hamwe. Izi ngingo zishonga mumazi kandi zigakora ikwirakwizwa rihamye rinini gato ugereranije nuduce twambere twa emulsiyo, bigakora firime nyuma yo kubura umwuma no gukama.
Ingamba zinyuranye zo guhindura zituma ifu ya redxersible latx ifite ibintu bitandukanye nko kurwanya amazi, kurwanya alkali, kurwanya ikirere no guhinduka. Ifu ya latex ikoreshwa muri minisiteri irashobora kunoza ingaruka zo guhangana ningaruka, kuramba, kwihanganira kwambara, koroshya ubwubatsi, guhuza imbaraga hamwe no guhuzagurika, kurwanya ikirere, kurwanya ubukonje-gukonjesha, kurwanya amazi, imbaraga zunamye nimbaraga zoroshye za minisiteri. Mugihe ibikoresho bishingiye kuri sima byongewemo nifu ya latx ihuza amazi, reaction ya hydration iratangira, kandi calcium hydroxide ya calcium ihita igera kuri kwiyuzuzamo kandi kristu ikagwa, kandi mugihe kimwe, kristu ya ettringite hamwe na calcium silicate hydrat gels. Ibice bikomeye bishyirwa kuri gel hamwe na sima idafite amazi. Mugihe reaction ya hydration igenda ikura, ibicuruzwa biva mumazi byiyongera, kandi ibice bya polymer bigenda byegeranya buhoro buhoro mu mwobo wa capillary, bigakora igipande cyuzuye cyane hejuru ya gel no kuri sima idafite amazi. Ibikoresho bya polymer byegeranijwe byuzura buhoro buhoro.
Ifu ya redispersible latex irashobora kunoza imiterere ya minisiteri nkimbaraga zoroheje nimbaraga zifatika, kuko irashobora gukora firime ya polymer hejuru yubutaka bwa minisiteri. Hano hari imyenge hejuru ya firime, kandi hejuru ya pore huzuyemo minisiteri, bigabanya guhangayika. Kandi munsi yibikorwa byimbaraga zo hanze, bizabyara kuruhuka bitavunitse. Byongeye kandi, minisiteri ikora skeleti ikomeye nyuma ya sima iyobowe, na polymer muri skeleton ifite imikorere yingingo yimukanwa, isa nuduce twumubiri wumuntu. Ibibyimba byakozwe na polymer birashobora kugereranywa ningingo hamwe na ligaments, kugirango tumenye neza kandi byoroshye skeleton ikomeye. gukomera.
Muri polymer-yahinduwe na sima ya minisiteri, firime ikomeza kandi yuzuye ya polymer ihujwe na sima paste hamwe nuduce twumucanga, bituma minisiteri yose iba nziza kandi yuzuye, kandi icyarimwe bigatuma umuyoboro wose wa elastike wuzuza capillaries na cavites. Kubwibyo, firime ya polymer irashobora kwanduza neza umuvuduko nuburemere bworoshye. Filime ya polymer irashobora gukuraho ibice byo kugabanuka kumurongo wa polymer-mortar, gukiza ibice byo kugabanuka, no kunoza kashe hamwe nubufatanye bwa minisiteri. Kubaho kwa polymer byoroshye kandi byoroshye cyane bya polymer byongera ubworoherane nubworoherane bwa minisiteri, bigatanga ubumwe hamwe nimyitwarire yingirakamaro kuri skeleton ikomeye. Iyo imbaraga zo hanze zashyizwe mu bikorwa, inzira yo gukwirakwiza microcrack iratinda bitewe nubworoherane bworoshye kandi bworoshye kugeza igihe impagarara nyinshi zigeze. Imiyoboro ya polymer ihuriweho nayo ikora nkimbogamizi yo guhuriza hamwe kwa microcrack mu gucamo ibice. Kubwibyo, isupu ya polymer isubirwamo itera kunanirwa kunanirwa no kunanirwa kwibikoresho.
Igihe cyo kohereza: Werurwe-10-2023