Kwivanga bigira ingaruka nziza mukuzamura imikorere yubwubatsi bwumye buvanze, kandi ifu ya reberi isubirwamo ikozwe muri polymer idasanzwe nyuma yo kumisha spray. Ifu yumye yumye 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 reberi ikoreshwa muri minisiteri irashobora kunoza ingaruka zo guhangana ningaruka, kuramba, kwambara kwambara, koroshya ubwubatsi, guhuza imbaraga hamwe no guhuzagurika, guhangana nikirere, kurwanya ubukonje, kurwanya amazi, imbaraga zunamye nimbaraga zoroshye za minisiteri. Igihe cyose ibikoresho bishingiye kuri sima hamwe nifu ya latex ihuye namazi, reaction ya hydration izatangira, kandi calcium hydroxide ya calcium izahita yuzura kandi kristu zizagwa. Muri icyo gihe, kristu ya ettringite na calcium silicate hydrate geles bizakorwa. Ibice bikomeye bishyirwa kuri gel hamwe na sima idafite amazi. Iyo reaction ya hydration igenda itera imbere, ibicuruzwa biva mumazi biriyongera, kandi ibice bya polymer bigenda byegeranya buhoro buhoro mu mwobo wa capillary, bigakora igipande cyuzuye cyuzuye hejuru ya gel no kuri sima idafite amazi. Ibikoresho bya polymer byegeranijwe byuzura buhoro buhoro.
Ifu ya redispersible latex irashobora kunoza imbaraga zo kugonda no gukomera kwa minisiteri 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, isubiranamo rya polymer ifu itezimbere kunanirwa no kunanirwa kwibikoresho.
Igihe cyo kohereza: Gashyantare-20-2023