introduce
Dry-mix mortar musanganiswa wesimende, jecha, uye zvimwe zvinowedzerwa zvinoshandiswa kunama mataira, kuzadza maburi, uye nzvimbo dzakatsetseka. Iko kusanganiswa kwakakodzera kwezvinhu zvakakosha pakugadzira dhaka repamusoro-soro rine chisungo chakanakisa, simba uye kusimba. Vagadziri saka vanoshandisa hydroxypropyl methylcellulose (HPMC) sechinhu chakakosha mukuumbwa kwakaoma-kusanganisa dhaka. HPMC ndeye cellulose-yakatorwa polymer inonyungudika mumvura uye inoshandiswa zvakanyanya muindasitiri yekuvaka nekuda kweiyo yakasarudzika rheological properties.
HPMC giredhi bvunzo
Kune akasiyana siyana eHPMC mamakisi pamusika, imwe neimwe iine yakasarudzika zvivakwa uye kugona kunokanganisa kupera kwechigadzirwa kuita. Naizvozvo, vagadziri vakaoma-musanganiswa wedhaka vanofanirwa kuyedza akasiyana HPMC mamakisi kuti vasarudze iyo inonyanya kukodzera kuumbwa kwechigadzirwa chavo.
Izvi zvinotevera hunhu hwakakosha hunoyerwa nevagadziri kana vachiyedza HPMC mamakisi mune yakaoma-musanganiswa dhaka mafomati:
1. Kuchengeta mvura
Kuchengeta mvura ndiko kugona kweHPMC kubata mvura uye kudzivirira kubuda kwemvura panguva yekurapa. Kuchengetedza hydration level yedhaka rako uye nekuona kuti inorapa nemazvo kwakakosha, kunyanya munzvimbo dzinopisa, dzakaoma. Mvura yakakwirira inobata simba inokonzera nguva yakareba yekurapa, izvo zvinotungamirira kuderera kwezvibereko. Vagadziri saka vanotsvaga kuenzanisa pakati pekuchengetedza mvura uye kurapa nguva pakusarudza mamakisi eHPMC.
2. Kukora simba
Iko kukora simba kweHPMC chiyero chekugona kwayo kuwedzera viscosity yedhaka. Yakakwira viscosity dhaka ine zvirinani kubatana uye zvivakwa zvekubatanidza, zvichiita kuti ive yakakodzera kune zvikumbiro zvekuvaka. Zvisinei, pamusoro pekukora kunogona kukonzera kuti chigadzirwa chiwedzere, izvo zvinoita kuti kusanganiswa uye kupararira kuve kwakaoma. Vagadziri nekudaro vanofanirwa kuyedza mamakisi eHPMC zvakanyanya kuti vave nechokwadi chesimba rekusimba rakakwana rine viscosity yakaenzana uye nyore kushandisa.
3. Ronga nguva
Nguva yekugadzika yekuoma-kusanganisa madhaka chinhu chakakosha chinokanganisa kubereka uye kunaka kwechigadzirwa chekupedzisira. Nguva refu yekumisa inotungamira mukuderera kwechigadzirwa, kukwira kwemitengo yevashandi, uye kuderera kwekugutsikana kwevatengi. Naizvozvo, vagadziri vanofanirwa kusarudza iyo HPMC giredhi iyo ichapa yakanakisa kuseta nguva uchiona kuti chigadzirwa charapwa nemazvo.
4. Kuumbwa kwemafirimu
Firimu-yekugadzira chivakwa kugona kweHPMC kuumba inodzivirira layer pamusoro pedhaka rakaporeswa. Iyi denderedzwa inodzivirira kubva kune dzakasiyana siyana dzezvakatipoteredza semhepo, mvura uye hunyoro uye inobatsira kuwedzera hupenyu hwechigadzirwa chekupedzisira. Vagadziri saka vanovavarira kusarudza HPMC mamakisi anopa epamusoro firimu rekuvaka ane mashoma maside mhedzisiro senge kupera, kubuda kwemavara kana kupepeta.
5. Kuenderana nemamwe madhiri
Dry-mix dhaka dzinoshandisa musanganiswa wemabhainda kuti uwane kuita kwakanyanya. Zvisinei, haasi ose anonamira anowirirana HPMC, izvo zvinogona kutungamirira kuderera kubatana, adhesion uye chisungo simba. Naizvozvo, vagadziri vanoedza HPMC mamakisi zvakanyanya kuti vaone kuenderana kwavo nemamwe anonamira uye sarudza iyo inopa yakanakisa mhedzisiro.
HPMC chinhu chakakosha mukugadzira yakaoma-musanganiswa dhaka, inokanganisa kushanda kwayo uye kusimba. Naizvozvo, vagadziri vanofanirwa kuongorora akasiyana HPMC mamakisi kuti vasarudze imwe inopa yakanakisa kuchengetedza kwemvura, kukora simba, nguva yekumisikidza, kuumbwa kwemafirimu, uye kuenderana nemamwe anonamira. Kuedza HPMC mamakisi inhanho yakakosha mukugadzira yakakwira-inoshanda yakaoma-musanganiswa madhaka ayo anopa kushanda kwenguva refu, kugutsikana kwevatengi uye kuwedzera purofiti. Nekubatanidzwa kwakaringana kwemagiredhi eHPMC uye zvigadziriso, yakaoma-musanganiswa dhaka inogona kupa yakanakisa chisungo simba, kusimba uye nyore kushandisa, ichiita kuti ive yakanakira kune akasiyana ekuvaka maapplication.
Nguva yekutumira: Aug-11-2023