Imwe yemisiyano mikuru pakati pedry-mixed mortar nedry travel ndeyekuti dry-mixed mortar inogadziriswa nemakemikari mashoma. Kuwedzera chimwe chinhu chinowedzerwa kudry powder mortar kunonzi primary modification, kuwedzera zvinhu zviviri kana kupfuura kunonzi secondary modration. Hunhu hwedry powder mortar hunoenderana nekusarudzwa kwakakodzera kwezvikamu uye kubatana uye kuenderana kwezvikamu zvakasiyana. Nekuti makemikari anowedzera anodhura, uye ane simba guru pakushanda kwedry powder mortar. Saka, pakusarudza additives, huwandu hwezvinhu zvinowedzerwa hunofanira kupihwa pekutanga. Inotevera ipfupiso yenzira yekusarudza makemikari anowedzera cellulose ether.
Cellulose ether inonziwo rheology modifier, musanganiswa unoshandiswa kugadzirisa hunhu hwerheological hwemortar ichangobva kusanganiswa, uye unoshandiswa mumhando dzese dzemortar. Hunhu hunotevera hunofanirwa kutariswa pakusarudza mhando yayo uye chiyero chayo:
(1) Kuchengetwa kwemvura pakupisa kwakasiyana;
(2) Kukora, kusimba;
(3) Hukama huripo pakati pekuenderana nekupisa, uye simba rekuchinjana kwesimba kana paine electrolyte;
(4) Chimiro uye mwero we etherification;
(5) Kuvandudzwa kwesimbi yedhishi thixotropy uye kugona kwayo kuisa dhishi panzvimbo yaro (izvi zvinodiwa kuti dhishi ripendwe panzvimbo dzakamira);
(6) Kumhanya kwekuputsika, mamiriro ezvinhu uye kukwana kwekuputsika.
Pamusoro pekuwedzera cellulose ether (yakadai semethyl cellulose ether) kudry powder mortar, polyvinyl acid vinyl ester inogonawo kuwedzerwa, kureva kuti, secondary modulator. Zvisungo zvisingagadzirisike (simende, gypsum) mudry mortar zvinogona kuve nechokwadi chekusimba kwakanyanya kwekumanikidzwa, asi hazvina zvazvinoita pakusimba kwekusimba uye kusimba kweflexural. Polyvinyl acetate inovaka firimu rinonamira mukati me pores edombo resimende, zvichiita kuti dry mortar ikwanise kumira mitoro yakakwira ye deformation uye inovandudza kusakara. Maitiro ekudzidzira akaratidza kuti kuwedzera huwandu hwakasiyana hwemethyl cellulose ether ne polyvinyl acid vinyl ester kudry powder mortar kunogona kugadzirira thin-layer smearing plate bonding mortar, plastering mortar, decoration painting mortar, uye masonry mortar ye aerated concrete blocks Uye self-leveling mortar yekudira pasi, nezvimwewo. Kusanganisa zviviri izvi hakungogone kuvandudza mhando yedry mortar chete, asiwo kunovandudza zvikuru kushanda kwekuvaka.
Mukushanda kwayo, kuti kuvandudza mashandiro ese, zvakakosha kushandisa zvimwe zvinhu zvakawanda pamwe chete. Pane chiyero chakanaka chekufananidza pakati pezvinowedzera. Chero bedzi huwandu hwemuyero uye chiyero chakakodzera, zvinogona kuvandudza mashandiro emota kubva pazvinhu zvakasiyana. Zvisinei, kana ikashandiswa yoga, mhedzisiro yekuchinja pamota ishoma, uye dzimwe nguva kunyange mhedzisiro yakaipa, senge kuwedzera cellulose yoga, ukuwo ichiwedzera kubatana kwemota uye kuderedza mwero wekubvisa mvura, inowedzera zvakanyanya kushandiswa kwemota uye kuichengeta mukati meslurry, izvo zvinotungamira kudzikira kukuru kwesimba rekumanikidza; Kana ikasanganiswa nemushonga wemhepo, kunyangwe mwero wekupatsanurwa kwemota unogona kuderedzwa zvakanyanya, uye kushandiswa kwemvura kunoderedzwawo zvakanyanya, asi simba rekumanikidza remota rinowanzo kudzikira nekuda kwemabubble emhepo akawanda. Kuti kuvandudza mashandiro emota yematombo kusvika pamwero mukuru, uye panguva imwe chete kudzivirira kukuvadzwa kwezvimwe zvinhu zvemota, kuenderana, kugadzika uye simba remota yematombo zvinofanira kusangana nezvinodiwa zvepurojekiti uye hunyanzvi hwakakodzera. Panguva imwe chete, hapana lime paste inoshandiswa, zvichichengetedza. Pakushongedza simende, kuchengetedzwa kwezvakatipoteredza, nezvimwewo, zvakakosha kutora matanho akazara, kugadzira nekushandisa zvinhu zvakasanganiswa kubva pamaonero ekuderedza mvura, kuwedzera viscosity, kuchengetedza mvura nekukora, uye plasticization yemhepo.
Nguva yekutumira: Chivabvu-08-2023