Madhaka ekuvaka anoshandiswa zvakanyanya mumabasa akasiyana-siyana muindasitiri yekuvaka akadai sekupurasita, pasi, mataira nekugadzira masonry, nezvimwewo. Dhaka rinowanzova musanganiswa wesimende, jecha nemvura zvakasanganiswa kuti zviite paste. Mumakore achangopfuura, kwave nekudiwa kuri kukura kwezvinowedzera simba redhaka. Upfu hwepolymer hunonyungudika (RDP) chinhu chinozivikanwa chinowedzerwa kumadhaka ekuvaka kuti chiwedzere hunhu hwazvo. Chinyorwa chino chichapa pfupiso yebasa reRDP redispersible polymer powder additives mumadhaka ekuvaka.
Upfu hwepolymer hunodzokororwa ipolymer inoumbwa ne ethylene-vinyl acetate copolymer, acrylic acid uye vinyl acetate. Ma polymer aya anosanganiswa nezvimwe zvinowedzera zvakaita se fillers, thickeners uye binders kuti agadzire upfu hweRDP. Upfu hweRDP hunoshandiswa mukugadzira zvinhu zvakasiyana-siyana zvekuvaka zvinosanganisira mataira anonamira, ma mortars akavakirwa pa simende uye ma leveling agents.
Chimwe chezvakanakira zvikuru zvekushandisa RDP mumadhaka ekuvaka ndechekuti inovandudza kushanda kwedhaka. RDP inowedzera kugadzikana kwedhaka, zvichiita kuti zvive nyore kuisa nekupararira. Kugadziriswa kuri nani kunorevawo kuti mvura shoma inodiwa kuti uwane kugadzikana kwaunoda. Izvi zvinoita kuti dhaka rirambe richidzivirira kutsemuka nekupwanyika, zvichiita kuti rigare kwenguva refu uye rigare kwenguva refu.
Imwe bhenefiti huru yekushandisa RDP mumamota ekuvaka ndeyekuti inovandudza kunamira kwemota. Kunamira kwakavandudzwa kunoreva kuti mota inoumba chisungo chakasimba nepamusoro kuti ishande zvakanaka uye igare kwenguva refu. RDP inowedzerawo hunhu hwekuchengetedza mvura hwemota, zvichibatsira kudzivirira kurasikirwa nemvura panguva yekuvaka. Izvi zvinobvumira mota kuti iome uye iome zvakaenzana, zvichiita kuti ishande zvakanaka uye igare kwenguva refu.
RDP inowedzerawo kuchinjika kwesimbi, zvichiita kuti ikwanise kutsungirira kushushikana kwenguva refu uye kumanikidzwa. Kuchinjika kwakawedzerwa kwesimbi kunoreva kuti hainyanyi kutsemuka nekutyoka kunyangwe kana yakatarisana nemamiriro ezvinhu akaomarara. Kuchinjika uku kwakavandudzwa kunorevawo kuti simbi inogona kushandiswa zvakasiyana-siyana uye inogona kushandiswa munzvimbo dzakasiyana-siyana, kusanganisira nzvimbo dzisina kuenzana uye dzakakombama.
Kushandiswa kweRDP mudura rekuvaka kunowedzerawo simba rekudzvanya redura. Simba rekudzvanya chinhu chakakosha chedura rekuvaka sezvo richiratidza kuti dura rinoramba sei kuchinjika nekutsemuka kana richinge rakaremerwa. RDP inowedzera simba rekudzvanya redura, zvichiita kuti rikwanise kutsungirira mitoro inorema uye kuderedza mukana wekutsemuka nekukuvadzwa.
Muchidimbu, kushandiswa kweRDP redispersible polymer powder additives mumamortar ekuvaka kune zvakawanda zvakanakira zvinogona kuvandudza mashandiro uye kugara kwenguva refu kwemortar. RDP inowedzera kushanda, kunamira, kuchengetedza mvura, kuchinjika uye simba rekumanikidza remortar, zvichiita kuti ive nyore kushandisa uye yakakodzera kushandiswa kwakasiyana-siyana. Kushandisa RDP mumamortar ekuvaka kunogadzira chigadzirwa chinoshanda zvakanyanya, chinodhura uye chinogara kwenguva refu, zvichiita kuti ive sarudzo yakakurumbira kune vavaki nevanoita mabasa.
Nguva yekutumira: Chikumi-29-2023