Mushonga wekuchengeta mvura (water retention property of mortar) zvinoreva kugona kwedhaka kuchengetedza mvura. Doka rine midziyo yekuchengetedza mvura iri nyore kubuda ropa uye kupatsanura panguva yekufambisa nekuchengetedza, kureva kuti, mvura inoyangarara pamusoro uye jecha nesimende inonyura pazasi. Inofanira kusanganiswa zvakare isati yashandiswa.
Ese marudzi emabase courses anoda dhaka rekuvakwa ane kumwe kunyura kwemvura. Kana kuchengetwa kwemvura kwedhaka kwakashata, chero bedzi iyo premixed dhaka ikabatana neblock kana base course, inotora mvura kubva kune yakasanganiswa dhaka panguva yekuputira dhaka. Panguva imwecheteyo, nzvimbo yevhu inoputika mvura yakananga kumhepo, zvichikonzera kusakwana kwemvura yedhaka nekuda kwekurasikirwa kwemvura, zvichikanganisa kuwedzera kwesementi, uye kukanganisa kukura kwesimba revhu, zvichikonzera simba Kunyanya, iyo interface. simba pakati pedhaka rakaomeswa nehwaro kosi inova yakadzikira, zvichikonzera kuputika kwedhaka nekudonha. Iyo dhaka ine yakanaka yekuchengetedza mvura ine yakakwana simende hydration, uye simba rayo rinogona kugadzirwa zvakajairika, uye rinogona kubatana zvakanaka ne base course.
Iyo yakagadzirira yakasanganiswa dhaka inowanzoiswa pakati pemvura inonwisa zvidhinha kana kuvharwa pachigadziko chepasi kuti iite yakazara nechigadziko. Mhedzisiro yekusachengetwa kwemvura isina kunaka pamhando yeprojekiti ndeiyi:
1. Pamusana pekurasikirwa kwemvura yakawandisa yedhaka, kugadzika kwemazuva ose uye kuoma kwedhaka kunokanganisa, uye simba rekubatanidza pakati pedhaka uye chinhu pamusoro pechinhu chinoderedzwa, izvo zvisingakanganisi basa rekuvaka, asiwo zvinoderedza simba rekugadzira masonry, nokudaro. kuderedza zvakanyanya kunaka kweprojekiti.
2. Kana chisungo chedhaka chisina kunaka, mvura inotorwa nyore nyore nezvidhinha, izvo zvinoita kuti dhaka rive rakaoma uye rakaoma uye risina kuenzana. Panguva yekushandiswa kweprojekti, haisi kungokanganisa kufambira mberi, asiwo inoita kuti rusvingo ruve nyore kuputika nekuda kwekuoma shrinkage;
Nokudaro, kuwedzera kuchengetwa kwemvura kwedhaka hakusi kungobatsira pakuvaka, asiwo kunogona kuwedzera simba.
Iyo yakakwirira yekuchengeta mvura kuita kwedhaka ine akawanda mapoinzi:
1. Iyo yakasiyana-siyana yekuchengetedza mvura inoita kuti dhaka rivhurike kwenguva yakareba, ine nzvimbo yakakura yekuvaka, hupenyu hurefu hwebasa mubhakiti, batch mixing uye batch kushandiswa.
2. Nzvimbo yakanaka yekuchengetedza mvura inoita simenti mudhaka yakazara hydrated uye inobudirira inovandudza kushanda kwekubatanidza kwedhaka.
3. Iyo dhaka ine maitiro akasiyana ekuchengetedza mvura, izvo zvinoita kuti zvive zvakaoma kubudisa kupatsanurwa uye kubuda ropa, uye inovandudza kushanda uye kushanda kwedhaka.
Nguva yekutumira: Sep-29-2022