Sei zvinodiwa pakuchengetwa kwemvura mudhaka zvakakwirira kudaro, uye ndezvipi zvakanakira dhaka nekuchengeta mvura zvakanaka? Rega ndikuzivise kukosha kweHPMC kuchengetedza mvura mudhaka!
Kudiwa kwekuchengetedza mvura
Kuchengetedzwa kwemvura (water retention of mortar) zvinoreva kugona kwedhaka kuchengetedza mvura. Doka rine mvura isina kuchengetwa iri nyore kubuda ropa uye kupatsanura panguva yekufambisa nekuchengetedza, kureva kuti, mvura inoyangarara pamusoro, jecha uye simende inonyura pazasi, uye inofanira kumutswa zvakare isati yashandiswa.
Mhando dzese dzemabhesi dzinoda dhaka rekuvaka dzine mwero wekunyura kwemvura. Kana kuchengetwa kwemvura kwedhaka kwakashata, mukugadzirwa kwedhaka, chero bedzi iyo yakagadzirira-yakasanganiswa dhaka inosangana nebhokisi kana chigadziko, iyo yakagadzirira-yakasanganiswa dhaka ichabatwa. Panguva imwecheteyo, pamusoro pedhaka rinoputika mvura kubva mumhepo, zvichiita kuti hunyoro husina kukwana hwedhaka nekuda kwekurasikirwa kwemvura, zvichikanganisa kuwedzera kwemvura ye simenti, uye kukanganisa kukura kwesimba revhu, zvichikonzera iyo simba, kunyanya simba rekubatanidza pakati pemuviri wakaoma wedhaka uye base layer. inodzika, zvichiita kuti dhaka ritsemuka nekudonha. Kune dhaka rine mvura yakanaka yekuchengetedza, iyo simende hydration yakaringana, simba rinogona kuvandudzwa zvakajairika, uye rinogona kusungirirwa zvakanaka kune base layer.
Yakagadzirirwa-yakavhenganiswa dhaka inowanzovakwa pakati pezvivharo zvinotora mvura kana kupararira pachigadziko, ichiumba yose nechigadziko. Mhedzisiro yekusachengetwa kwemvura isina kunaka pamhando yeprojekiti ndeiyi:
1. Pamusana pekurasikirwa kwemvura yakawandisa yedhaka, kugadzika kwemazuva ose uye kuoma kwevhu kunokanganiswa, uye kunamatira pakati pevhu nepamusoro kunoderedzwa, izvo zvisingakanganisi basa rekuvaka, asiwo zvinoderedza simba rekugadzira. masonry, nokudaro kuderedza zvakanyanya kunaka kweprojekti;
2. Kana iyo dhaka isingabatanidzi zvakanaka, mvura ichabatwa nyore nyore nezvidhinha, zvichiita kuti dhaka rive rakaoma uye rakaoma, uye kushandiswa kunenge kusina kuenzana. Panguva yekushandiswa kweprojekti, hazvizongokanganisa kufambira mberi, asiwo kuita kuti rusvingo ruve nyore kuputika nekuda kwekuderera.
Nokudaro, kuwedzera kuchengetwa kwemvura kwedhaka hakusi kungogadzirisa kuvaka, asiwo kunowedzera simba.
2. Nzira dzekare dzekuchengetedza mvura
Mhinduro yechinyakare ndeyekudiridza base layer uye mvura yakananga pamusoro peiyo base layer, izvo zvinozoita kuti kunyura kwemvura kwe base layer ipararire zvakanyanya nekuda kwekusiyana kwekushisa, nguva yekudiridza, uye kufanana kwekudiridza. Iyo base layer ine mvura shoma inotorwa uye icharamba ichitora mvura mudhaka. Pamberi pe simenti hydration, mvura inoyamwa kure, iyo inokanganisa kupinda kwe simenti hydration uye hydration zvigadzirwa munheyo; Iyo yepakati yekutama inomhanya inononoka, uye kunyange mvura-yakapfuma layer inoumbwa pakati pedhaka uye substrate, iyo inokanganisawo kusimba kwechisungo. Nokudaro, kushandisa nzira yakajairika yekudiridza kwete chete haigoni kunyatsogadzirisa dambudziko rekunyura kwemvura yakakwirira yemadziro emadziro, asi inokanganisa kusimba kwekubatanidza kwedhaka uye chigadziko, zvichiita kuti pave negomba uye kuputika kwakaoma.
3. Basa rekuchengetedza mvura zvakanaka
Iyo yakakwirira yekuchengeta mvura yedhaka ine zvakawanda zvakanaka:
1. Iyo yakanakisa yekuchengetedza mvura inoita kuti dhaka rivhurike kwenguva yakareba, uye rine zvakanakira zvekuvaka kwakakura, kushandisa nguva refu mubhodhoro, batch kusanganisa uye batch kushandiswa, nezvimwewo;
2. Kuchengetwa kwemvura kwakanaka kunogona kuzadza zvakakwana simenti mudhaka uye kunyatsogadzirisa kushanda kwechisungo chedhaka;
3. Dhaka rine mvura yakanakisa yekuchengetedza, izvo zvinoita kuti dhaka risanyanya kupatsanurwa uye kubuda ropa. Iye zvino, kushanda uye kushanda kwedhaka kunovandudzwa.
Nguva yekutumira: Kubvumbi-26-2024