Turmi-busassun busassun nau'in nau'in granule ne da foda wanda aka haɗa su daidai da abubuwan da ake ƙarawa kamar su tara mai kyau da masu ɗaure inorganic, kayan riƙon ruwa da kauri, abubuwan rage ruwa, abubuwan hana fashewa, da kuma abubuwan da ke lalata kumfa a cikin wani ɗan lokaci bayan haka. bushewa da nunawa. Ana jigilar cakuda zuwa wurin aikin ta hanyar tanki na musamman ko jakar takarda mai hana ruwa, sannan a haɗe shi da ruwa. Baya ga siminti da yashi, turmi mai gauraya busasshen da aka fi amfani da shi yana sake tarwatsawa kuma ana iya tarwatsa foda na polymer. Saboda girmansa da babban tasiri akan aikin turmi, shine abin da aka mayar da hankali. Wannan takarda ta tattauna tasirin foda na polymer mai tarwatsawa akan kaddarorin turmi.
1 Hanyar gwaji
Domin sanin sakamakon tarwatsa polymer foda abun ciki a kan kaddarorin polymer turmi, da dama kungiyoyin da dabara da aka tsara ta orthogonal gwajin hanya da kuma gwada bisa ga Hanyar "Quality Inspection Standard of Polymer Turmi for External Wall Thermal Insulation" DBJOI- 63-2002. Ana amfani da shi don tantance tasirin turmi na polymer akan ƙarfin haɗin gwiwa, ƙarfin haɗin gwiwa mai ƙarfi na tushe mai ƙarfi da ƙarfin matsawa, ƙarfin sassauƙa da matsi-zuwa ninki na turmi polymer kanta.
Babban albarkatun kasa sune P-04 2.5 siminti na siliki na yau da kullun; RE5044 da R1551Z za a iya tarwatsawa da kuma redispersible latex foda; 70-140 raga ma'adini yashi; sauran additives.
2 Tasirin foda mai tarwatsewa akan kaddarorin turmi polymer
2.1 Tensile bonding da matsawa karfi bonding Properties
Tare da karuwar abun ciki mai tarwatsewa na polymer foda, ƙarfin haɗin gwiwa da ƙarfin haɗin gwiwa mai ƙarfi na turmi polymer da turmi sumunti su ma sun ƙaru, kuma ɓangarorin biyar sun tashi a layi daya tare da haɓaka abun ciki na siminti. Matsakaicin ma'auni na kowane ma'ana mai dacewa na iya ƙididdige ƙimar tasirin abubuwan da ke cikin foda na polymer wanda za'a iya rarrabawa akan aikin turmi siminti. Ƙarfin juzu'i na matsawa yana nuna yanayin ci gaban layi. Tsarin gabaɗaya shine cewa ƙarfin haɗin gwiwa yana ƙaruwa da 0.2 MPa kuma ƙarfin haɗin ƙarfi mai ƙarfi yana ƙaruwa da 0.45 MPa don kowane 1% karuwa a cikin foda mai tarwatsewa.
2.2 Matsi / nadawa kaddarorin turmi kanta
Tare da haɓaka abun ciki na foda na polymer wanda za'a iya sakewa, ƙarfin matsawa da ƙarfin sassauƙa na turmi polymer da kansa ya ragu, yana nuna cewa polymer yana da tasiri akan hydration na siminti. Tasirin abun ciki na polymer foda mai tarwatsewa akan rabon matsawa na turmi polymer kanta yana nunawa a cikin Hoto 4. turmi. Matsakaicin ma'auni na kowane ma'ana mai dacewa na iya ƙididdige yawan tasirin tasirin abubuwan foda na polymer wanda za'a iya rarrabawa akan aikin turmi polymer ɗin kansa. Tare da haɓaka abun ciki na foda na polymer wanda za'a iya tarwatsawa, ƙarfin matsawa, ƙarfin sassauƙawa da kuma Ramin ƙaddamarwa yana nuna yanayin raguwar layi. Ga kowane 1% karuwa na rarrabuwar polymer foda, ƙarfin matsawa yana raguwa da 1.21 MPa, ƙarfin flexural yana raguwa da 0.14 MPa, da matsawa-zuwa-ninka rabo ya ragu da 0.18. Hakanan za'a iya ganin cewa an inganta sassaucin turmi saboda karuwa a cikin adadin foda na polymer mai rarraba.
2.3 Ƙididdigar ƙididdiga na tasirin lemun tsami-yashi rabo akan kaddarorin turmi polymer
A cikin turmi polymer, hulɗar tsakanin lemun tsami-yashi rabo da redispersible polymer foda abun ciki kai tsaye rinjayar da aikin turmi, don haka wajibi ne a tattauna sakamakon lemun tsami-yashi rabo dabam. Dangane da hanyar sarrafa bayanan gwajin orthogonal, ana amfani da ma'auni daban-daban na lemun tsami-yashi azaman abubuwa masu canzawa, kuma ana amfani da abun ciki na polymer foda mai alaƙa da ake iya tarwatsawa azaman madaidaicin ma'ana don zana zane mai ƙididdige tasirin tasirin lemun tsami-yashi ya canza akan turmi. Ana iya ganin cewa, Tare da karuwa na lemun tsami-yashi rabo, aikin polymer turmi zuwa siminti turmi da kuma yi na polymer turmi da kanta ya nuna wani mikakke rage Trend. Ƙarfin haɗin gwiwa yana raguwa da 0.12MPa, ƙarfin haɗin gwiwa mai ƙarfi yana raguwa da 0.37MPa, ƙarfin ƙarfin turmi na polymer kanta an rage shi da 4.14MPa, ƙarfin flexural yana raguwa da 0.72MPa, da matsawa-zuwa-ninka. ya canza zuwa -0.270%.
3 Tasirin redispersible latex foda mai ƙunshi f a kan tensile bonding na polymer turmi da EPS foamed polystyrene board Haɗin polymer turmi zuwa siminti turmi da kuma bonding na EPS kwamitin samarwa da DB JOI-63-2002 misali ne Conflicting.
Tsohon yana buƙatar babban ƙarfi na turmi na polymer, yayin da na ƙarshe yana buƙatar babban sassauci, amma la'akari da cewa aikin rufin thermal na waje yana buƙatar tsayawa ga bangon bangon bangon bango da sassauƙan allon EPS, a lokaci guda, ya zama dole don tabbatar da cewa farashin ya kasance. ba ma tsayi ba. Saboda haka, marubucin ya lissafa tasirin abun ciki na polymer foda mai tarwatsawa akan sassauƙan haɗin kai na polymer turmi daban don jaddada mahimmancinsa.
3.1 Tasirin nau'in foda na polymer mai tarwatsawa akan ƙarfin haɗin gwiwa na hukumar EPS
Ana zaɓar foda na latex da za a sake sakewa daga R5, C1, P23 na waje; Taiwan D2, D4 2; na gida S1, S2 2, jimlar 7; polystyrene allon zaba Beijing 18kg / EPS jirgin. Dangane da ma'auni na DBJ01-63-2002, hukumar EPS na iya shimfiɗawa da ɗaurewa. Redispersible latex foda zai iya saduwa da buƙatun m da m stretch bonding Properties na polymer turmi a lokaci guda.
Lokacin aikawa: Nov-01-2022