Kakaretso ea Self-Leveling Compound

Motsoako o ikemetseng, lisebelisoa tsa bohlokoa boenjiniere ba sejoale-joale ba kaho ea fatše, hangata li entsoe ka samente ea Portland, li-aggregate tse ntle, li-polymers tse sebetsang, le li-additives tse ikhethang. Thepa ea bona e ikhethang ea ho ikemela e hlaha ho tsoa ho seretse se phahameng sa metsi se entsoeng ka mor'a ho tsoakana, se ka khonang ho ikemela ka tlas'a matla a khoheli ho etsa metheo e boreleli e nang le botenya ho tloha ho 3mm ho ea ho 50mm.

Lisebelisoa tse tloaelehileng li kenyelletsa limela tsa indasteri (mohlala, mekato e nepahetseng haholo libakeng tsa ho etsa likoloi), libaka tsa khoebo (mohlala, mekato e meholo e sa keneng ka har'a lisuphamakete), le merero ea bolulo ea maemo a holimo (mohlala.

Melemo ea Kaho

Ha ho bapisoa le mekhoa ea setso ea ho lokisa seretse, lik'hemik'hale tse ikemetseng li ntlafatsa katleho ea kaho ka 40% -60%. Sebopeho sa bona sa ho folisa ka potlako se khutsufatsa nako ea projeke haholo, se etsa hore e be tse loketseng "kaho ea bosiu-ho fana ka letsatsi le tlang" mererong ea ntlafatso.

Hobaneng o sebelisa HPMC ho Self-Leveling Compound? Ts'ebetso e joang?

a. Taolo ea ho Boloka Metsi

Limolek'hule tsa HPMC li hulela metsi ka litlamo tsa haedrojene, li etsa marang-rang a mahlakore a mararo a eketsang ho boloka metsi a seretse ho feta 90% (ha ho bapisoa le 75% ntle le HPMC). Libakeng tse phahameng tsa mocheso (> 30 ° C), ho khetha HPMC e nang le mocheso oa gelation ≥65 ° C ho lieha ho tsoa ha metsi, ho thibela ho lahleheloa ke matla ka lebaka la ho haella ha samente.

b. Ntlafatso ea Thepa ea Rheological

• Taolo ea Phallo: Low-viscosity HPMC (mohlala, 400Mpas) e fokotsa khatello ea lihlahisoa, ho finyella litekanyetso tsa pele tsa phallo ea 180-220mm bakeng sa ho itšehla thajana (3-5mm); mefuta e phahameng ea viscosity (mohlala, 15000Mpas) e matlafatsa thixotropy, e thibela ho senyeha ha sedimentation ka har'a kaho ea lera le teteaneng (10-50mm) ho netefatsa hore ho na le boima bo tšoanang.

• Phello ea Synergistic: Ha e kopantsoe le li-polycarboxylate tse fokotsang metsi, HPMC e thibela ho arohana. Ho 0.3% ea ho fokotsa metsi le 0.12% HPMC, tahlehelo ea phallo ea metsotso ea 30 ≤10%, e finyella litlhoko tsa ho phalla ho itšetlehile ka nako bakeng sa ho ikemela.

c. Thibelo ea Shrinkage le Cracking

Ka ho liehisa samente hydration (ho lelefatsa nako ea ho beha qalong ka metsotso e 15-30), HPMC e fokotsa khatello ea pele ea shrinkage ka ho feta 30%.Litekong tsa ho omisa shrinkage, seretse se nang le HPMC se bonts'a sekhahla sa matsatsi a 28 sa shrinkage sa 0.018%, se tlase haholo ho feta 0.035% bakeng sa lisampole tseo e seng tsa HPMC, ka mokhoa o atlehileng o fokotsang ho phatloha ho hoholo.

U ka khetha HPMC e nepahetseng joang ho tsamaisana le maemo a fapaneng a Kaho ea Motsoako oa Boithaopo?

HPMC ea boemo ba indasteri e arotsoe ka viscosity ea tharollo ea metsi ea 2% ho ea ho tlase-viscosity ( 30000Mpas), e sebetsanang le litlhoko tse fapaneng tsa kaho.

Lintlha tsa bohlokoaBakeng sa Mehaho e FapanengBoemo

Mohlala oa Tlhahiso (Boithati bo thehiloeng ho Gypsum):Sebopeho sa Motheo: α-hemihydrate gypsum 60%, calcium carbonate 30%, lehlabathe la quartz (80-120 mesh) 10%; Li-additives: HPMC (20000mPa·s, 0.18%), retarder (tartaric acid, 0.05%), e fokotsang metsi (melamine-based, 0.3%.(Sena ke sa referense ea hau feela) 

Qetello

E le tlatsetso ea mantlha ea ts'ebetso ho li-compounds tsa ho ikemela,HPMCe susumetsa ts'ebetso ea lintho tse bonahalang nakong eohle ea ho itokisa, kaho le bophelo ba ts'ebeletso. Ka litlhoko tse ntseng li eketseha tsa ho nepahala ha fatše ho haha ​​​​liindasteri,HPMCkhetho le theknoloji ea ts'ebeliso e tla ntlafala le ho ba bohlale haholoanyane.