Nagarta da kwanciyar hankali na ingantacciyar gini na plastering turmi sune mahimman abubuwan haɓakawa, kuma ether cellulose, kamar yadda babban ƙari na plastering turmi, yana taka rawar da ba za a iya maye gurbinsa ba.Cellulose etheryana da halaye na yawan riƙon ruwa da kyawawan kayan naɗewa, kuma ya dace musamman don injinaginina plastering turmi.
Adadin riƙe ruwa na plastering turmi
Adadin riƙe ruwa na plastering turmi yana ƙaruwa yayin da dankon cellulose ether ya kasance daga 50,000 zuwa 100,000, kuma yana da raguwa lokacin da ya kasance daga 100,000 zuwa 200,000, yayin da adadin yawan ruwa na cellulose ether don feshin inji ya kai. fiye da 93%. Mafi girman adadin ajiyar ruwa na turmi, ƙananan yuwuwar turmi zai zubar da jini. A lokacin gwajin feshin na'urar feshin turmi, an gano cewa idan yawan ruwa na cellulose ether ya ragu da kashi 92%, turmin yana saurin zubar jini bayan an sanya shi na wani lokaci, kuma, a farkon feshin. , yana da sauƙi musamman don toshe bututu. Sabili da haka, lokacin shirya turmi mai laushi wanda ya dace da ginin injiniya, ya kamata mu zaɓi ether cellulose tare da mafi girmarike ruwaƙimar.
Tumi plastering 2h daidaito asarar
Dangane da buƙatun GB/T25181-2010 “Tabbatar Haɗaɗɗen Turmi”, ƙimar daidaiton sa'o'i biyu na buƙatun turmi plastering na yau da kullun bai wuce 30%. An gudanar da gwajin asarar daidaito na 2h tare da ɗanɗano na 50,000, 100,000, 150,000, da 200,000. Ana iya ganin cewa yayin da danko na ether cellulose ya karu, ƙimar rashin daidaituwa na 2h na turmi zai ragu a hankali. Duk da haka, a lokacin ainihin spraying, an gano cewa a lokacin gyaran gyaran fuska na baya, saboda danko na ether cellulose ya yi yawa, haɗin kai tsakanin turmi da trowel zai fi girma, wanda ba shi da amfani ga ginawa. Sabili da haka, a cikin yanayin tabbatar da cewa turmi ba ya daidaita kuma baya lalatawa, ƙananan ƙimar danko na ether cellulose, mafi kyau.
Buɗewar turmi plasteringlokaci
Bayan daplastering turmiana fesa bangon, saboda shayar da ruwa na katangar da kuma fitar da danshi a saman turmi, turmi zai samar da wani karfi a cikin kankanin lokaci, wanda zai yi tasiri a kan ginin da ya biyo baya, don haka shi ne. wajibi ne don nazarin lokacin saitin turmi. Matsakaicin darajar cellulose ether yana cikin kewayon 100,000 zuwa 200,000, lokacin saitawa ba ya canzawa sosai, kuma yana da ƙayyadaddun alaƙa tare da ƙimar riƙewar ruwa, wato, mafi girman adadin ajiyar ruwa, mafi tsayi. lokacin saita turmi.
Ruwan ruwa na plastering turmi
Asarar kayan aikin fesa yana da alaƙa da ruwa mai yawa na plastering turmi. A ƙarƙashin wannan rabo na ruwa-material rabo, mafi girma da danko na cellulose ether, da ƙananan fluidity darajar turmi. Wato mafi girman danko na ether cellulose, mafi girman juriya na turmi kuma mafi girma da lalacewa a kan kayan aiki. Sabili da haka, don aikin injiniya na plastering turmi, ƙananan danko na ether cellulose ya fi kyau.
Sag juriya na plastering turmi
Bayan da plastering turmi aka fesa a bango, idan sag juriya naturmiba shi da kyau, turmi zai ragu ko ma zamewa, yana yin tasiri sosai ga lallausan turmi, wanda zai haifar da babbar matsala ga ginin daga baya. Don haka, turmi mai kyau dole ne ya sami kyakkyawan juriya na thixotropy da sag. Gwajin ya gano cewa bayan da aka gina eter cellulose mai danko 50,000 da 100,000 a tsaye, tiles din sun zame kai tsaye, yayin da ether din cellulose mai danko 150,000 da 200,000 bai zame ba. Har yanzu kusurwa yana tsaye a tsaye, kuma babu zamewa da zai faru.
Ƙarfin plastering turmi
Yin amfani da 50,000, 100,000, 150,000, 200,000, da 250,000 cellulose ethers don shirya plastering turmi samfurori don aikin injiniya, an gano cewa tare da karuwar cellulose ether danko, ƙarfin darajar plastering turmi ƙasa. Wannan shi ne saboda cellulose ether yana samar da wani babban bayani mai zurfi a cikin ruwa, kuma za a gabatar da adadi mai yawa na kumfa na iska yayin da ake hadawa da turmi. Bayan da siminti ya taurare, waɗannan kumfa na iska za su samar da ɓangarorin da yawa, ta yadda za su rage ƙarfin ƙarfin turmi. Sabili da haka, turmi mai laushi wanda ya dace da ginin injiniyoyi dole ne ya dace da ƙimar ƙarfin da ake buƙata ta ƙira, kuma dole ne a zaɓi ether cellulose mai dacewa.
Haɗin kai na kayan injin mutum shine babban mahimmancin ginin injina, kuma ingancin turmi shine mafi mahimmanci. Sai kawai ta amfani da ether cellulose da ya dace zai iya kaddarorin turmi ya dace da buƙatun feshin inji.
Lokacin aikawa: Yuli-21-2023