Dry powder mortar idhaka rakapedzwa zvishoma rakagadzirwa nezvinhu zvakagadzirwa mufekitori kuburikidza nekusanganisa nemazvo uye kusanganisa zvakafanana. Rinogona kushandiswa chete nekuwedzera mvura nekukurunga panzvimbo yekuvaka. Nekuda kwemhando dzakasiyana dzedhaka rakaoma, rinoshandiswa zvakanyanya. Chimwe chezvinhu zvikuru ndechekuti dhaka diki rinoita basa rekubatanidza, kushongedza, kudzivirira uye kunamatira. Semuenzaniso, dhaka rine basa guru rekubatanidza rinosanganisira masonry mortar, dhaka remadziro nepasi, dhaka rinonongedza, dhaka rinonamira, nezvimwewo; dhaka rine mhedzisiro huru yekushongedza rinosanganisira madhaka akasiyana-siyana ekupurasita, putty yemadziro emukati nekunze, uye dhaka rekushongedza rine mavara. nezvimwewo; dhaka risingapindi mvura, madhaka akasiyana-siyana anodzivirira ngura, dhaka rinozvigadzika pasi, dhaka risingaparare, dhaka rinopisa kupisa, dhaka rinonwisa ruzha, dhaka rekugadzirisa, dhaka rinodzivirira mildew, dhaka rinochengetedza, nezvimwewo zvinoshandiswa kudzivirira. Naizvozvo, kuumbwa kwaro kwakaoma, uye rinowanzo umbwa nezvinhu zvekusimbisa, filler, mineral admixture, pigment, admixture nezvimwe zvinhu.
1. Chinosunga
Zvinhu zvinoshandiswa zvakanyanya pakugadzira simende yemusanganiswa wakaoma zvinosanganisira: simende yePortland, simende yePortland yakajairika, simende ine alumina yakawanda, simende yecalcium silicate, gypsum yechisikigo, lime, silica fume uye musanganiswa wezvinhu izvi. Simende yePortland (inowanzova Type I) kana simende chena yePortland ndiyo inonyanya kusungirirwa. Mamwe masimende akakosha anowanzo diwa mudura repasi. Huwandu hwesimende hunoita 20% ~ 40% yemhando yezvigadzirwa zvemusanganiswa wakaoma.
2. Muzadzisi
Zvinhu zvikuru zvinozadza dhaka reupfu hwakaoma ndeizvi: jecha reyero, jecha re quartz, limestone, dolomite, expanded perlite, nezvimwewo. Aya mafiller anopwanywa, aomeswa, uye obva asefewa kuita mhando nhatu: dzakakora, dzepakati, uye dzakapfava. Saizi yedhaka iri: coarse filler 4mm-2mm, medium filler 2mm-0.1mm, uye filler yakapfava iri pasi pe 0.1mm. Kune zvigadzirwa zvine saizi diki kwazvo, hupfu hwematombo akanaka uye limestone yakarongwa zvinofanirwa kushandiswa sema aggregates. Dhaka reupfu hwakajairika rinogona kushandiswa kwete limestone yakapwanywa chete, asiwo jecha rakaomeswa uye rakavharirwa seaggregate. Kana jecha riri remhando yakakwana kuti rishandiswe mukongiri yepamusoro, rinofanira kusangana nezvinodiwa pakugadzira misanganiswa yakaoma. Chinhu chikuru pakugadzira dhaka reupfu hwakaoma rine hunhu hwakavimbika chiri muhunyanzvi hwehukuru hwedhaka rezvinhu zvakagadziriswa uye kururama kwehuwandu hwekudyisa, izvo zvinowanikwa mumutsara wekugadzira otomatiki wedhaka reupfu hwakaoma.
3. Zvicherwa zvakasanganiswa
Zvicherwa zvinosanganiswa nedry powder mortar zvinonyanya kutaurwa: zvinhu zvinobva mumaindasitiri, marara emaindasitiri nezvimwe zvinhu zvakasikwa, zvakaita se: slag, fly ash, volcanoal ash, fine silica powder, nezvimwewo. Makemikari ezvinosanganiswa izvi anonyanya kuwanikwa musilicon ine calcium oxide. Aluminum hydrochloride ine simba rakawanda uye kuomarara kwe hydraulic.
4. Kusanganiswa
Musanganiswa uyu ndiwo unobatanidza zvikuru nedry powder mortar, mhando nehuwandu hwedry powder uye kugona kuchinjika pakati pedry powder zvinoenderana nemhando uye mashandiro edry powder mortar. Kuti uwedzere kushanda uye kubatana kwedry powder mortar, wedzera kupwanyika kwedry powder, kuderedza kupenya, uye kuita kuti dyr isabude nyore uye kupatsanura, kuitira kuti dyr powder mortar ishande zvakanaka uye kuderedza mari yekugadzira. Zvakadai sepolymer rabha powder, huni fiber, hydroxymethyl cellulose ether, hydroxypropyl methyl cellulose, modified polypropylene fiber, PVA fiber nezvimwe zvinhu zvinoderedza mvura.
Nguva yekutumira: Kubvumbi-26-2024