Dry-mix mortar (DMM) bụ ihe eji ewu ụlọ na-emepụta site na ihicha na ịkụpịa ciment, gypsum, lime, wdg dị ka isi ihe isi ihe, mgbe ọ gbasasịrị kpọmkwem, na-agbakwụnye ihe mgbakwunye na-arụ ọrụ dị iche iche. Ọ nwere uru nke ngwakọta dị mfe, ihe owuwu dị mma, na ịdị mma kwụsiri ike, a na-ejikwa ya na injinia ihe owuwu, injinia ịchọ mma na mpaghara ndị ọzọ. Ihe ndị bụ isi nke ngwa agha akọrọ-agwakọta gụnyere ihe ndị dị ala, ihe ndochi, ihe mgbakwunye na ihe mgbakwunye. N'etiti ha,cellulose ether, dị ka ihe mgbakwunye dị mkpa, na-arụ ọrụ dị mkpa n'ịhazi rheology na imeziwanye arụmọrụ ihe owuwu.
1. Ihe ndabere
Isi ihe bụ isi ihe na-eme ka mmiri na-ekpo ọkụ na-ekpo ọkụ, na-agụnyekarị ciment, gypsum, lime, wdg. Ịdị mma nke isi ihe na-emetụta ike, adhesion, ogologo oge na ihe ndị ọzọ nke akọrọ-mix mortar.
Simenti: Ọ bụ otu n'ime ihe ndị a na-ahụkarị na ala akọrọ na ngwa ngwa mix, na-abụkarị ciment silicate nkịtị ma ọ bụ ciment gbanwere. Ogo ciment na-ekpebi ike nke ngwa agha ahụ. Ọkọlọtọ ọkọlọtọ nkịtị bụ 32.5, 42.5, wdg.
Gypsum: nke a na-ejikarị emepụta ngwa agha plasta na ụfọdụ ngwa ụlọ pụrụ iche. Ọ nwere ike ịmepụta mma coagulation na ike siri ike n'oge usoro hydration ma melite arụmọrụ nke ngwa agha.
lime: a na-ejikarị akwadebe ụfọdụ ngwa agha pụrụ iche, dị ka ngwa ngwa lime. Ojiji nke wayo nwere ike welie njigide mmiri nke ngwa agha ma melite ntu oyi ya.
2. Filler
Filler na-ezo aka inorganic ntụ ntụ iji gbanwee anụ ahụ Njirimara nke ngwa agha, na-emekarị gụnyere ezi ájá, quartz ntụ ntụ, gbasaa perlite, gbasaa ceramsite, wdg Ndị a fillers na-na-enwetakarị site a kpọmkwem screening usoro na edo urughuru size iji hụ na ewu arụmọrụ nke ngwa agha. Ọrụ nke ndochi ahụ bụ inye olu nke ngwa agha ma na-achịkwa mmiri ya na nrapado ya.
Aja dị mma: a na-ejikarị ya na ngwa ngwa akọrọ nkịtị, nke nwere obere nha, na-adịkarị n'okpuru 0.5mm.
Quartz ntụ ntụ: ịdị mma dị elu, dabara maka ngwa agha nke chọrọ ike dị elu na ịdịte aka.
Mgbasawanye perlite/gbasaa ceramsite: nke a na-ejikarị na ngwa agha dị arọ, nwere ezigbo mkpuchi ụda na ihe mkpuchi okpomọkụ.
3. Admixtures
Admixtures bụ chemical bekee na melite arụmọrụ nke akọrọ-mix ngwa agha, tumadi gụnyere mmiri-ejigide mmadụ, retarders, accelerators, antifreeze mmadụ, wdg Admixtures nwere ike ịgbanwe ntọala oge, fluidity, mmiri njigide, wdg nke ngwa agha, na n'ihu melite ewu arụmọrụ na ngwa mmetụta nke ngwa agha.
Onye na-eji mmiri na-ejide mmiri: a na-eji eme ka mmiri dị mma nke ngwa ngwa ma gbochie mmiri ka ọ ghara ịdaba ngwa ngwa, si otú ahụ gbasaa oge a na-ewu ngwa agha, nke dị oke mkpa, karịsịa na okpomọkụ dị elu ma ọ bụ ebe akọrọ. Ihe ndị na-ejigide mmiri na-emekarị gụnyere polymers.
Ndị na-alaghachi azụ: nwere ike igbu oge nhazi ngwa ngwa, dabara adaba maka ebe a na-ewu ụlọ okpomọkụ iji gbochie ngwa agha ka ọ ghara isi ike n'oge a na-ewu.
Ndị na-eme ngwa ngwa: mee ngwa ngwa ngwa ngwa ike nke ngwa ngwa, karịsịa na gburugburu ebe okpomọkụ dị ala, a na-ejikarị eme ihe iji mee ka mmeghachi omume hydration nke ciment dịkwuo elu ma melite ike nke ngwa agha.
Mgbochi oyi: ejiri ya na gburugburu ebe okpomọkụ dị ala iji gbochie ngwa agha ịla n'iyi n'ihi oyi.
4. Ihe mgbakwunye
Additives na-ezo aka chemical ma ọ bụ eke bekee na-eji melite ụfọdụ kpọmkwem Njirimara nke akọrọ-Mix ngwa agha, na-emekarị gụnyere cellulose ether, thickener, dispersant, wdg Cellulose ether, dị ka a na-ejikarị ọtọ mgbakwunye, ekere òkè dị mkpa na akọrọ-mix ngwa agha.
Ọrụ nke cellulose ether
Cellulose ether bụ klas nke ogige polymer nke sitere na cellulose site na mgbanwe kemịkalụ, nke a na-ejikarị arụ ọrụ, ihe mkpuchi, kemịkalụ kwa ụbọchị na ubi ndị ọzọ. N'ime ngwa agha akọrọ- mix, ọrụ cellulose ether na-egosipụtakarị n'akụkụ ndị a:
Melite njigide mmiri nke ngwa agha
Cellulose ether nwere ike ịbawanye njigide mmiri nke ngwa ngwa ma belata ikuku mmiri ngwa ngwa. Ihe owuwu molekụla ya nwere otu hydrophilic, nke nwere ike ịmepụta ike njikọ siri ike na mkpụrụ ndụ mmiri, si otú ahụ na-edobe ngwa agha mmiri ma na-ezere mgbawa ma ọ bụ ihe isi ike na-ewu nke mmiri na-efu ngwa ngwa.
Melite rheology nke ngwa agha
Cellulose ether nwere ike ịhazigharị mmiri na nrapado nke ngwa agha, na-eme ka ngwa agha ahụ dịkwuo otu ma dị mfe ịrụ ọrụ n'oge a na-ewu ya. Ọ na-abawanye viscosity nke ngwa agha site n'ịgba, na-abawanye mgbochi nkewa, na-egbochi ngwa agha site na stratifying mgbe a na-eji ya eme ihe, na-eme ka ọ dị mma nke ngwa agha.
Mee ka adhesion nke ngwa agha dịkwuo mma
Ihe nkiri a na-emepụta site na cellulose ether na ngwa agha nwere ezigbo adhesion, nke na-enyere aka melite ike njikọ dị n'etiti ngwa agha na mkpụrụ osisi, karịsịa n'ime usoro nhazi nke mkpuchi na tiling, ọ nwere ike imeziwanye arụmọrụ njikọ ahụ nke ọma ma gbochie ịdaba.
Melite nguzogide mgbape
Ojiji nke cellulose ether na-enyere aka melite nguzogide mgbawa nke ngwa agha, karịsịa n'ime usoro ihicha, cellulose ether nwere ike ibelata mgbawa na-akpata site na nkwụsị site n'ịbawanye ike na ike nkwụsị nke ngwa agha.
Melite arụmọrụ ihe owuwu nke ngwa agha
Cellulose ethernwere ike ịhazigharị oge a na-ewu ngwa agha nke ọma, gbatịa oge a na-emeghe, ma mee ka ọ nwee ike ịnọgide na-arụ ọrụ nke ọma na okpomọkụ dị elu ma ọ bụ ebe akọrọ. Na mgbakwunye, ọ nwekwara ike melite flatness na operability nke ngwa agha ma melite ihe owuwu mma.
Dị ka ihe eji arụ ọrụ na-arụ ọrụ nke ọma na gburugburu ebe obibi, ezi uche nke ihe mejupụtara ya na oke ya na-ekpebi àgwà nke arụmọrụ ya. Dị ka ihe mgbakwunye dị mkpa, cellulose ether nwere ike imeziwanye ihe ndị dị mkpa nke ngwa ngwa mix mix, dị ka njide mmiri, rheology, na adhesion, ma na-arụ ọrụ dị mkpa n'ịkwalite arụmọrụ ihe owuwu na mma nke ngwa agha. Ka ụlọ ọrụ na-ewu ụlọ na-aga n'ihu na-emewanye ihe ndị a chọrọ maka ịrụ ọrụ ihe onwunwe, ntinye nke cellulose ether na ihe mgbakwunye ndị ọzọ na-arụ ọrụ na ngwa agha akọrọ-mix ga-abawanye ụba, na-enye ohere dị ukwuu maka ọganihu nkà na ụzụ nke ụlọ ọrụ ahụ.
Oge nzipu: Eprel-05-2025