Redispersible polymer poda (RDP) icopolymer yevinyl acetate uye ethylene, inonyanya kushandiswa sebhainda mune zvekuvaka.Inovandudza kusimba, kusimba uye kunamatira kwesement-based products nekugadzira firimu yakagadzikana panguva yekuoma.RDP ivhu chena rakaoma rinoda kuparadzirwa mumvura risati rashandiswa.Izvo zvivakwa uye viscosity yeRDP zvinhu zvakakosha sezvo zvichikanganisa kunaka kwechigadzirwa chekupedzisira.Ichi chinyorwa chinotsanangura maitiro eRDP uye viscosity yekuyedza nzira dzinogona kubatsira vagadziri kuvandudza mhando yechigadzirwa uye kuona kugutsikana kwevatengi.
RDP performance test nzira
Iyo RDP performance test nzira yakagadzirirwa kuongorora kugona kweRDP kuvandudza mashandiro ezvigadzirwa-simende.The test process ndeiyi inotevera:
1. Kugadzirira zvinhu
Gadzirira zvinhu zvinotevera: RDP, Portland simende, jecha, mvura, uye plasticizer.Sanganisa Portland simende nejecha muchiyero che1: 3 kuti uwane musanganiswa wakaoma.Gadzirira mhinduro nekusanganisa mvura uye plasticizer muchiyero che1: 1.
2. sanganisa
Sakanidza RDP nemvura mu blender kusvikira homogeneous slurry inowanikwa.Wedzera slurry kune yakaoma musanganiswa uye sanganisa kwemaminetsi maviri.Wedzera mvura plasticizer solution uye sanganisa kwemamwe maminetsi mashanu.Iko kusanganiswa kunoguma kunofanira kuva nehupamhi, hunyoro hunoenderana.
3. Nyorera
Uchishandisa trowel, tambanudza musanganiswa kusvika kuhukobvu hwe 2mm panzvimbo yakachena, yakaoma, yakati sandara.Shandisa roller kutsvedzerera kumusoro uye kubvisa mabhuru emhepo.Rega masampuli apore patembiricha yekamuri kwemazuva makumi maviri nemasere.
4. Kuongororwa kwekuita
Sampuli dzakaporeswa dzakaongororwa kune zvinotevera zvivakwa:
-Kumanikidza simba: Iyo yekumanikidza simba yakayerwa uchishandisa yepasirese yekuyedza muchina.Iyo yekumanikidza simba inofanirwa kunge yakakwira kupfuura sampu yekudzora isina RDP.
- Flexural Strength: Simba rekushanduka-shanduka rakayerwa uchishandisa matatu-point bending test.Iko kushanduka simba kunofanirwa kuve kwakakwira kupfuura sampu yekudzora isina RDP.
- Adhesive Strength: Simba rekunamatira rinoyerwa uchishandisa bvunzo yekudhonza.Simba rechisungo rinofanira kunge rakakwirira kudarika sampuli yekutonga isina RDP.
-Kuramba kwemvura: Iwo masampula akaporeswa akanyudzwa mumvura kwemaawa makumi maviri nemana uye zvivakwa zvakaongororwa zvakare.Kuita kwayo hakufanirwe kukanganiswa zvakanyanya mushure mekusangana nemvura.
Iyo RDP performance test nzira inogona kupa chinangwa uye huwandu hwedhata pamusoro pekushanda kweRDP mukuvandudza mashandiro ezvigadzirwa-simende.Vagadziri vanogona kukwidziridza nzira iyi kukwidziridza RDP maumbirwo uye kuona kuenderana kwemhando yechigadzirwa.
RDP Viscosity Test Method
Iyo RDP viscosity bvunzo nzira yakagadzirirwa kuongorora mafambiro ekuyerera kweRDP mumvura.The test process ndeiyi inotevera:
1. Kugadzirira zvinhu
Gadzirira zvinhu zvinotevera: RDP, mvura yakasvibiswa, viscometer, uye calibration fluid.Iyo viscosity range ye calibration fluid inofanira kunge yakafanana neinotarirwa viscosity yeRDP.
2. Viscosity kuyerwa
Edza viscosity ye calibration fluid ine viscometer uye nyora kukosha.Geza viscometer uye uzadze nemvura yakasvibiswa.Edza viscosity yemvura uye nyora kukosha.Wedzera huwandu hunozivikanwa hweRDP kumvura uye simbisa zvinyoro kusvikira musanganiswa wakafanana wawanikwa.Rega musanganiswa ugare kwemaminitsi mashanu kuti ubvise mabhuru emhepo.Edza viscosity yemusanganiswa uchishandisa viscometer uye nyora kukosha.
3. Verenga
Verenga viscosity yeRDP mumvura uchishandisa inotevera fomula:
RDP Viscosity = (Mixture Viscosity – Water Viscosity) / (Calibration Fluid Viscosity – Water Viscosity) x Calibration Fluid Viscosity
Iyo RDP viscosity yekuyedza nzira inopa chiratidzo chekuti zviri nyore sei RDP kupararira mumvura.Iyo yakakwirira iyo viscosity, iyo yakanyanya kuoma iyo redispersibility, nepo yakaderera iyo viscosity, iyo inokurumidza uye yakanyanya kupedzisa redispersibility.Vagadziri vanogona kushandisa nzira iyi kugadzirisa kuumbwa kweRDP uye kuve nechokwadi chekugadzirisa zvakare.
mukupedzisa
RDP zvivakwa uye viscosity bvunzo nzira maturusi akakosha ekuongorora mhando yeRDPs uye optimize maumbirwo awo.Nekushandisa nzira idzi, vagadziri vanogona kuona kuti zvigadzirwa zvavo zveRDP zvinosangana nekuita kunodiwa uye nyore-kwe-kushandisa zvakatemwa, nekudaro zvichiwedzera kugutsikana kwevatengi uye kuvimbika.Vagadziri vanorayirwa kuti vatevedzere yakamisikidzwa yekuyedza maitiro uye kushandisa calibrated michina kuti ive nechokwadi uye chakavimbika mhedzisiro.Sezvo tekinoroji yeRDP ichiramba ichivandudza, kudiwa kwezvigadzirwa zvepamusoro-soro uye zviri nyore kushandisa zveRDP zvinotarisirwa kuwedzera mune ramangwana.
Nguva yekutumira: Sep-04-2023