Dry-mixed mortar imhando yegranule nehupfu inosanganiswa zvakafanana nezvinowedzerwa zvakaita semisanganiswa yakatsetseka uye inorganic binders, inochengeta mvura nekukora zvinhu, zvinoderedza mvura, anti-kuparuka, uye defoaming agents mune imwe chikamu mushure. kuomesa uye kuongorora. Iko kusanganiswa kunotakurwa kunzvimbo yekuvaka neanokosha tanker kana yakavharwa pepa bhegi remvura, uye rinosanganiswa nemvura. Pamusoro pesimende nejecha, iyo inonyanya kushandiswa yakaoma-yakasanganiswa dhaka inodhindwa zvakare uye inodhindwazve polima polima. Nekuda kwemutengo wayo wepamusoro uye pesvedzero huru pakuita kwedhaka, ndiyo inotarisa kutarisisa. Iri bepa rinokurukura nezve mhedzisiro yepolymer poda inorasika pane zvinhu zvedhaka.
1 Test nzira
Kuti uone mhedzisiro yekuparara kwepolymer poda yemukati pane zvivakwa zvepolymer dhaka, akati wandei mapoka eforoma akagadzirwa ne orthogonal bvunzo nzira uye akaedzwa zvinoenderana nenzira ye "Quality Inspection Standard yePolymer Mortar yeExternal Wall Thermal Insulation" DBJOI- 63-2002. Iyo inoshandiswa kuona pesvedzero yepolymer dhaka pane iyo tensile bond simba, compressive shear bond simba rekongiri base uye inomanikidza simba, flexural simba uye compression-to-peta reshiyo yepolymer mortar pachayo.
Iyo huru mbishi zvinhu ndeye P-04 2.5 yakajairwa silica simende; RE5044 uye R1551Z inodhindwa zvakare uye inodhindwazve latex poda; 70-140 mesh quartz jecha; zvimwe zvinowedzera.
2 Kufurira kwepolymer hupfu inorasika pane zvimiro zvepolymer mortar
2.1 Tensile bonding uye compression shear bonding zvivakwa
Nekuwedzera kwehupfu hwepolymeri inorasika, kusimba kwechisungo uye kusimba kweshear bond yepolymer dhaka nedhaka resimende zvakawedzerawo, uye macurves mashanu akasimuka achienderana nekuwedzera kwesemende. Huremu hwepakati hweimwe neimwe yakakosha hunogona kuongorora huwandu hwekufurirwa kwezviri mukati redispersible polymer poda pakuita kwesamende dhaka. Iyo compressive shear simba inoratidza mutsara wekukura maitiro. Chimiro chese ndechekuti kusimba kwechisungo kunowedzera ne 0.2 MPa uye iyo compressive shear bond simba rinowedzera ne 0.45 MPa yega yega 1% yekuwedzera mune inoparadzirwa polima polima.
2.2 Kudzvanya/kupeta zvimiro zvedhaka pacharo
Nekuwedzera kwehupfu hwepolymer hunogona kudzokororwa, simba rekumanikidza uye simba rekuchinjika repolymer dhaka pacharo rakaderera, zvichiratidza kuti iyo polima ine chinotadzisa kuyerera kwesamende. Mhedzisiro yezvinoparara zvepolymer poda yehupfu pane yekumisikidza ratio yepolymer dhaka pachayo inoratidzwa muFigure 4. , nekuwedzera kweiyo inodzokororwa yelatex poda yemukati, iyo yekumanikidza reshiyo yepolymer dhaka pachayo inoderera, zvichiratidza kuti iyo polima inovandudza kuoma kwe. the dope. Huremu hweavhareji yega yega yakakosha hunogona kuongorora huwandu hwekufurirwa kweiyo inodhindwa yepolymer poda yemukati pakuita kwepolymer mortar pachayo. Nekuwedzera kweiyo redispersible polymer poda yemukati, iyo yekumanikidza simba, flexural simba uye Iyo indentation reshiyo inoratidza mutsara unodzikira maitiro. Pakuwedzera kwe1% kwehupfu hwepolymer inoparara, simba rekumanikidza rinodzikira ne 1.21 MPa, simba rekuchinja rinodzikira ne0.14 MPa, uye chiyero chekumanikidza-kupeta chinodzikira ne0.18. Zvinogonawo kuonekwa kuti kushanduka kwedhaka kunovandudzwa nekuda kwekuwedzera kwehuwandu hwehupfu hwepolymer.
2.3 Quantitative wongororo yemhedzisiro yerime-jecha reshiyo pane zvinhu zvepolymer mortar
Mune dhaka repolymer, kupindirana pakati pe lime-jecha reshiyo uye redispersible polymer poda yemukati inokanganisa zvakananga kuita kwedhaka, saka zvinodikanwa kukurukura nezve mhedzisiro yerime-jecha reshiyo zvakasiyana. Zvinoenderana neiyo orthogonal test data process method, akasiyana lime-jecha ratios anoshandiswa sezvinhu zvinoshanduka, uye inoenderana redispersible polymer poda yemukati inoshandiswa sechinhu chinogara chiripo kudhirowa dhayagiramu yehuwandu hwesimba rekuchinja lime-jecha reshiyo padhaka. Zvinogona kuonekwa kuti, Nekuwedzera kwereshiyo ye lime-jecha, kushanda kwepolymer dhaka kudhaka resimende uye kushanda kwepolymer mortar pachayo kunoratidza mutsara wekuderera maitiro. Kusimba kwechisungo kunoderedzwa ne0.12MPa, iyo compressive shear bond simba inoderedzwa ne0.37MPa, iyo yekumanikidza simba repolymer dhaka pachayo inoderedzwa ne4.14MPa, iyo flexural simba inoderedzwa ne0.72MPa, uye kudzvanya-kupeta. chiyero chakaderedzwa ne0.270
3 Mhedzisiro yeredispersible latex powder ine f pane tensile bonding yepolymer mortar uye EPS foamed polystyrene board Kubatana kwepolymer dhaka kudhaka resimende uye kusungirirwa kweEPS board kwakataurwa naDB JOI-63-2002 chiyero Kunopesana.
Iyo yekutanga inoda kuomarara kwepolymer dhaka, nepo iyo yekupedzisira ichida kuchinjika kwakanyanya, asi tichifunga kuti yekunze thermal insulation purojekiti inoda kunamatira kune ese ari maviri madziro akaomarara uye anochinjika EPS mabhodhi, panguva imwe chete, zvinodikanwa kuve nechokwadi kuti mutengo uripo. kwete zvakanyanya. Naizvozvo, munyori anonyora mhedzisiro yezvinoparara zvepolymer poda yemukati pane inochinjika bonding zvimiro zvepolymer mortar zvakasiyana kusimbisa kukosha kwayo.
3.1 Kupesvedzera kwerudzi rwepolymer hupfu inorasika pane bond simba reEPS board
Redispersible latex powders inosarudzwa kubva kune dzimwe nyika R5, C1, P23; MaTaiwanese D2, D4 2; zvemumba S1, S2 2, hwerengedzo ye7; polystyrene board yakasarudzwa Beijing 18kg / EPS board. Maererano neDBJ01-63-2002 chiyero, EPS board inogona kutambanudzwa uye kusungwa. Redispersible latex poda inogona kusangana nezvinodiwa zveyakaomarara uye inochinjika yakatambanudzwa bonding zvimiro zvepolymer mortar panguva imwe chete.
Nguva yekutumira: Nov-01-2022