Kuvakwa kwemichina kwedhaka rekupurasita kwakabudirira mumakore achangopfuura. Plastering dhaka yakagadzira zvakare kubva kune yechinyakare saiti yekuzvisanganisa kune yazvino yakajairika yakaoma-musanganiswa dhaka uye wet-musanganiswa dhaka. Kuita kwayo hukuru uye kugadzikana ndizvo zvinhu zvakakosha zvekusimudzira kugadzirwa kwemakaniya plastering, uye cellulose ether inoshandiswa sedhaka rekupurasita Iyo yepakati yekuwedzera ine basa risingadzoreki. Muchiedzo ichi, nekugadzirisa viscosity uye kuchengetwa kwemvura kwe cellulose ether, uye kuburikidza nekugadzirwa kwekuchinja, mhedzisiro yezviratidzo zvekuyedza seyekuchengetwa kwemvura, 2h kusachinja-chinja kurasikirwa, kuvhurika nguva, sag kuramba, uye fluidity yekupurasita dhaka pakuvaka mechan. akadzidza. Pakupedzisira, zvakaonekwa kuti cellulose ether ine hunhu hwepamusoro pekuchengetedza mvura mwero uye yakanaka kuputira pfuma, uye inonyanya kukodzera kuvakwa kwemichina yekupurasita dhaka, uye zviratidzo zvese zvekupura dhaka zvinosangana nezvinodiwa nenyika.
Mwero wekuchengetedza mvura yedhaka rekupurasita
Mwero wekuchengetedza mvura yekupurasita dhaka iri kuwedzera maitiro apo viscosity ye cellulose ether ichibva pa50,000 kusvika 100,000, uye iri kuderera maitiro kana iri kubva pa100,000 kusvika 200,000, nepo mwero wekuchengetedza mvura we cellulose ether yekupfapfaidza muchina wasvika. zvinopfuura 93%. Kukwirira kwehuwandu hwekuchengetedza mvura kwedhaka, kashoma kuti dhaka ribude ropa. Munguva yekuedza kupfapfaidza nemuchina wekupfapfaidza dhaka, zvakaonekwa kuti kana mwero wekuchengetedza mvura we cellulose ether wakaderera pane 92%, dhaka rinowanzobuda ropa mushure mekuiswa kwenguva yakati, uye, pakutanga kwekupfapfaidza. , inonyanya nyore kuvhara pombi. Naizvozvo, kana tichigadzira dhaka rekupurasita rakakodzera kugadzirwa nemichina, tinofanira kusarudza cellulose ether ine mwero wepamusoro wekuchengetedza mvura.
Plastering mortar 2h kurasikirwa kwekuenderana
Zvinoenderana nezvinodiwa zveGB/T25181-2010 "Ready Mixed Mortar", iyo maawa maviri yekusagadzikana kurasikirwa kunodiwa kweyakajairwa plastering dhaka isingasviki makumi matatu%. Iyo viscosity ye50,000, 100,000, 150,000, uye 200,000 yakashandiswa pa2h kusawirirana kurasikirwa kuedza. Zvinogona kuonekwa kuti sezvo viscosity ye cellulose ether inowedzera, iyo 2h kusawirirana kurasikirwa kukosha kwedhaka kuchaderera zvishoma nezvishoma, izvo zvinoratidzawo kuti viscosity ye cellulose ether Iyo yakakwirira kukosha, zviri nani kugadzikana kwekugadzikana kwedhaka uye zviri nani anti-delamination kuita kwedhaka. Zvisinei, panguva chaiyo yokupfapfaidza, zvakaonekwa kuti panguva gare gare leveling kurapwa, nokuti viscosity cellulose eteri yakanyanyisa, kubatana pakati dhaka uye trowel achava mukuru, izvo zvisingabatsiri kuvaka. Nokudaro, munyaya yekuona kuti dhaka harigadziki uye harina delaminate, iyo yakaderera iyo viscosity kukosha kwe cellulose ether, zviri nani.
Nguva dzekuvhura dhaka
Mushure mekunge dhaka rekupurasita rakapfapfaidzwa pamadziro, nekuda kwekunyudzwa kwemvura kwemadziro substrate uye kubuda kwehunyoro pamusoro pevhu, dhaka rinogadzira rimwe simba munguva pfupi yenguva, izvo zvinozokanganisa kunotevera kuyera kuvakwa. . Nguva yekuvhara yakaongororwa. Iko viscosity value ye cellulose ether iri muhuwandu hwe100,000 kusvika ku200,000, nguva yekuisa haishanduki zvakanyanya, uye inewo imwe hukama nehuwandu hwekuchengetedza mvura, kureva, iyo yakakwirira yemvura yekuchengetedza mvura, iyo yakareba. nguva yakatarwa yedhaka.
Fluidity yekupurasita dhaka
Kurasikirwa kwemidziyo yekupfapfaidza kune zvakawanda zvekuita nekuyerera kwedhaka rekupurasita. Pasi pechiyero chimwe chemvura-yezvinhu, iyo yakakwira viscosity ye cellulose ether, inodzika iyo fluidity kukosha kwedhaka. , izvo zvinoreva kuti iyo yakakwira viscosity ye cellulose ether, iyo yakakura kushorwa kwedhaka uye yakakura kupfeka pamidziyo. Nokudaro, nokuda kwekugadzirwa kwemakaniti yekupurasita dhaka, iyo yakaderera viscosity ye cellulose ether iri nani.
Sag resistance ye plastering mortar
Mushure mekunge dhaka rekupurasita rapfapfaidzwa pamadziro, kana kusagadzika kwedhaka kusina kunaka, dhaka rinodonha kana kutotsvedza, zvichikanganisa zvakanyanya kupfava kwedhaka, izvo zvinozokonzera dambudziko guru kune gare gare kuvakwa. Naizvozvo, dhaka rakanaka rinofanira kunge riine yakanakisa thixotropy uye sag kuramba. Muedzo wakawana kuti mushure mekunge cellulose ether ine viscosity ye50,000 uye 100,000 yakamiswa yakatwasuka, matiles akatsvedza pasi, nepo cellulose ether ine viscosity ye150,000 uye 200,000 haina kutsvedza. Iyo kona ichiri yakatwasuka, uye hapana kutsvedza kuchaitika.
Simba rekupurasita dhaka
Tichishandisa 50 000, 100 000, 150 000, 200 000, uye 250 000 cellulose ether kugadzira masample edhaka rekupurasita nokuda kwekuvaka nemichina, zvakaonekwa kuti nekuwedzera kwe cellulose ether viscosity, kukosha kwesimba kwekupurasita dhaka kuderera. Izvi ndezvokuti cellulose ether inoumba mhinduro yepamusoro-viscosity mumvura, uye nhamba yakawanda yemhepo yakagadzikana inoputika ichaunzwa panguva yekusanganiswa kwedhaka. Mushure mekunge simenti yaoma, aya mabhubhu emhepo anoumba nhamba huru yevoids, nokudaro kuderedza kukosha kwesimba kwedhaka. Naizvozvo, dhaka rekupurasita rakakodzera kuvakwa kwemichina rinofanira kukwanisa kuzadzisa kukosha kwesimba kunodiwa nedhizaini, uye yakakodzera cellulose ether inofanirwa kusarudzwa.
Nguva yekutumira: Mar-15-2023