RDP don busassun turmi gauraye

Dry gauraye turmi wani nau'i ne na granular da powdery cakuda lafiya tara da inorganic siminti abu, ruwa riƙe thickening abu, ruwa-rage wakili, anti-fatsewa wakili, defoaming wakili da sauran Additives gauraye a ko'ina a cikin wani rabo. Ana jigilar ta zuwa wurin da motar tanki ta musamman ko jakar takarda da aka rufe, sannan a gauraya da ruwa. Yanzu ban da siminti da yashi a cikin babban adadin busassun gauraye turmi, adadin ƙarin yana iya sakewa.polymer foda RDP. Saboda tsadar sa da babban tasiri akan kaddarorin turmi, shi ne abin da ya fi daukar hankalin mutane. Tasirin sake rarrabawapolymer foda RDPakan kaddarorin turmi an tattauna a wannan takarda.

1 Hanyar Gwaji

Domin sanin tasirin redispersiblepolymer foda RDPAbun ciki akan kaddarorin turmi na polymer, Ƙungiyoyin ƙira da yawa an tsara su ta hanyar gwajin orthogonal kuma an gwada su bisa ga dbjoi-63-2002, Matsayin Ingancin Ingancin Nau'in polymer Mortar don rufin waje na bangon waje, don tantance tasirin turmi polymer akan tensile. Ƙarfin haɗin gwiwa, ƙarfin haɗin kai mai ƙarfi da ƙarfin matsawa, ƙarfin sassauƙa da juzu'i na turmi polymer akan gindin kankare.

Babban albarkatun kasa shine P-04 2.5-pu silicon ciminti; RE5044 da R1551Z za a iya sake tarwatsawa da sake tarwatsa emulsion foda; 70-140 raga ma'adini yashi; Sauran additives.

2 Tasirin sake rarrabawapolymer foda RDPa kan Properties na polymer turmi

2.1 Tensile bond da matsawa karfi bond Properties

Tare da karuwa na sake rarrabawapolymer foda RDPAbun ciki, ƙarfin ƙugiya mai ƙarfi da ƙarfin haɗin kai mai ƙarfi na turmi polymer da turmi sumunti suma suna ƙaruwa, kuma ɓangarorin guda biyar suna motsawa a layi daya tare da haɓaka abun cikin siminti. All dacewa maki nauyi talakawan, amma ƙididdiga bincike za a iya tarwatsa emulsion foda abun ciki a kan mataki na rinjayar da ciminti turmi yi iya ganin cewa tare da karuwa da reusable tarwatsa emulsion foda abun ciki a bonding ƙarfi na ciminti turmi, polymer turmi matsawa karfi karfi. Juyin girma na layin layi, yanayin gabaɗayan haɓakar 1% don tarwatsewapolymer foda RDP, Ƙarfin haɗin gwiwa ya karu da 0.2 MPa, Ƙarfin ƙaddamarwa mai ƙarfi ya karu da 0.45MPA

2.2 Matsi / lankwasawa Properties na turmi kanta

Tare da karuwa na abun ciki na redispersiblepolymer foda RDP, Ƙarfin daɗaɗɗen ƙarfi da ƙarfin sassauƙa na turmi polymer ya ragu, yana nuna cewa polymer yana da tasiri mai hanawa akan hydration na siminti. FIG. 4 yana nuna tasirin sake rarrabawapolymer foda RDPabun ciki a kan matsawa da nadawa rabo na polymer turmi. , tare da karuwar abun ciki na sakewapolymer foda RDP, Matsakaicin matsawa kai na turmi polymer yana raguwa, yana nuna cewa polymer yana inganta ƙarfin turmi. Tasirin abun ciki na sakewapolymer foda RDPakan aikin turmi polymer ana iya yin nazari akan ƙididdigewa ta matsakaicin nauyi na kowane ma'aunin daidaitawa. Tare da karuwa na abun ciki na redispersiblepolymer foda RDP, Ƙarfin matsawa, ƙarfin gyare-gyare da gyare-gyaren raƙuman ruwa na polymer turmi yana nuna raguwar raguwar layi. Ƙarfin matsawa, ƙarfin juzu'i da rabo mai sassauƙa na sake rarrabawapolymer foda RDPya ragu da 1.21MPa, 0.14MPa da 0.18 cikin 1%. Hakanan za'a iya ganin cewa saboda karuwar adadin sake rarrabawapolymer foda RDP, An inganta sassaucin turmi.

2.3 Binciken ƙididdigewa na tasirin siminti-yashi rabo akan kaddarorin turmi polymer

A cikin turmi polymer, da siminti-yashi rabo da redispersiblepolymer foda RDPabun ciki yana hulɗa kai tsaye da juna, don haka wajibi ne a tattauna tasirin siminti-yashi daban. Dangane da hanyar sarrafa bayanan gwaji na orthogonal zai zama bambanci daban-daban kamar masu canji, ana iya haɗawa da watsawa tare dapolymer foda RDPabun ciki a matsayin m factor jawo bambanci a kan tasirin canji a kan turmi adadi adadi, na iya ganin cewa tare da karuwa da bambanci a kan yi na siminti turmi polymer turmi da polymer turmi yi kanta ne linearly ragewa Trend, The general Trend ne cewa Ƙarfin haɗin gwiwa na turmi na polymer zuwa turmi siminti yana raguwa da 0.12MPa, ƙarfin haɗin kai mai ƙarfi yana raguwa da 0.37MPa, ƙarfin matsawa na turmi polymer yana raguwa da 4.14MPa, ƙarfin flexural yana raguwa da 0.72MPa, kuma ma'auni ya ragu da 0.270. tare da kowane karuwa na siminti-yashi rabo

3 Tasirin sake rarrabawapolymer foda RDPakan haɗin ƙugiya tsakanin turmi polymer da EPS kumfa polystyrene board DB JoI-63-2002 misali yana ba da shawara cewa haɗakar turmi ta polymer zuwa turmi siminti da allon EPS ya saba wa juna.

Tsohon yana buƙatar turmi polymer ya zama mai ƙarfi, yayin da na ƙarshe yana buƙatar sassaucinsa ya zama babba, amma la'akari da injiniyan rufin waje duka biyu don tsayawa bangon bango da allon EPS mai sassauƙa, a lokaci guda don tabbatar da cewa farashin bai yi yawa ba. Saboda haka, tasirin abun ciki na redispersiblepolymer foda RDPa kan m bonding dukiya na polymer turmi an jera daban don jaddada muhimmancinsa.

4Tasirin nau'ikan sake rarrabawapolymer foda RDPakan ƙarfin haɗin gwiwa na kwamitin EPS

R5, C1, P23 nau'ikan sake rarrabawapolymer foda RDPan zabo su daga kasashen waje. Taiwan D2,D4 2 iri; Na gida S1, S2 2 nau'in nau'in nau'in 7; Jirgin polystyrene wanda aka yi a cikin jirgin EPS mai nauyin kilo 18 na Beijing. Dangane da ƙayyadaddun dbJ01-63-2002, za'a iya sake rarrabuwar haɗin gwiwapolymer foda RDPna hukumar EPS na iya saduwa da ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun aikin haɗin gwiwa na turmi polymer a lokaci guda.