Cellulose ether wani abu ne na gama gari a cikin kayan gini, ana amfani da shi don haɓaka aikin gini da kaddarorin injin turmi. Fineness yana ɗaya daga cikin mahimman halaye na ether cellulose, wanda ke nufin rarraba girman ƙwayar ƙwayar cuta.
Halaye da aikace-aikace na ether cellulose
Cellulose ether galibi ya haɗa da hydroxypropyl methylcellulose (HPMC), hydroxyethyl cellulose (HEC), da sauransu. Babban ayyukansu na ginin turmi sun haɗa da:
Riƙewar ruwa: ta hanyar rage ƙawancen ruwa, tsawaita lokacin shayar da siminti, da haɓaka ƙarfin turmi.
Kauri: Ƙara dankowar turmi da inganta aikin gini.
Inganta juriyar tsaga: Abubuwan riƙe ruwa na ether cellulose na taimakawa wajen sarrafa raguwar siminti, ta yadda za a rage faɗuwar faɗuwar turmi.
The fineness na cellulose ether rinjayar da dispersibility, solubility da kuma yadda ya dace a turmi, game da shi rinjayar da overall yi na turmi.
Za'a iya yin nazari akan tasirin cellulose ether fineness akan ƙarfin turmi daga abubuwa masu zuwa:
1. Yawan rushewa da rarrabawa
Adadin narkar da ether na cellulose a cikin ruwa yana da alaƙa da kusanci sosai. Kwayoyin ether cellulose tare da mafi girma fineness suna mafi sauƙi narkar da cikin ruwa, don haka da sauri kafa wani uniform watsawa. Wannan rarrabuwar kawukan na iya tabbatar da tsayayyen riƙon ruwa da kauri a cikin dukkan tsarin turmi, haɓaka daidaitaccen ci gaba na amsawar ruwan siminti, da haɓaka ƙarfin farkon turmi.
2. Ƙarfin ajiyar ruwa
Kyakkyawan ether cellulose yana rinjayar aikin riƙewar ruwa. Kwayoyin ether na cellulose tare da mafi girma fineness suna samar da wani yanki na musamman na musamman, don haka samar da ƙarin tsarin microporous na ruwa a cikin turmi. Wadannan micropores zasu iya riƙe ruwa yadda ya kamata, tsawaita lokacin amsawar siminti hydration, haɓaka samuwar samfuran hydration, don haka haɓaka ƙarfin turmi.
3. Interface bonding
Saboda su mai kyau dispersibility, cellulose ether barbashi da mafi girma fineness iya samar da wani karin uniform bonding Layer tsakanin turmi da tara, da kuma inganta dubawa bonding na turmi. Wannan tasirin yana taimakawa turmi ya kula da kyawawan filastik a farkon matakin, rage abin da ya faru na raguwa, kuma don haka inganta ƙarfin gaba ɗaya.
4. Inganta ciminti ruwa
A lokacin aikin siminti hydration tsari, samar da hydration kayayyakin bukatar wani adadin ruwa. Cellulose ether tare da mafi girma fineness na iya samar da ƙarin yanayi hydration yanayi a cikin turmi, kauce wa matsalar rashin isa ko wuce kima danshi na gida, tabbatar da cikakken ci gaban hydration dauki, da haka inganta ƙarfin turmi.
Nazarin gwaji da bincike na sakamako
Don tabbatar da tasirin cellulose ether fineness akan ƙarfin turmi, wasu nazarin gwaji sun daidaita ingancin ether cellulose kuma sun gwada kayan aikin injin turmi a ƙarƙashin nau'i daban-daban.
Zane na gwaji
Gwajin yawanci yana amfani da samfuran ether cellulose na finenesses daban-daban kuma yana ƙara su zuwa turmi siminti bi da bi. Ta hanyar sarrafa wasu masu canji (kamar ruwa-ciminti rabo, tarawa rabo, hadawa lokaci, da dai sauransu), kawai fineness na cellulose ether aka canza. Sannan ana gudanar da jerin gwaje-gwajen ƙarfi, gami da ƙarfin matsawa da ƙarfin sassauƙa.
Sakamakon gwaji yakan nuna:
Samfuran ether na Cellulose tare da mafi girman fineness na iya haɓaka ƙarfin matsawa da ƙarfi na turmi a farkon matakin (kamar kwanaki 3 da kwanaki 7).
Tare da tsawaita lokacin warkewa (kamar kwanaki 28), ether cellulose tare da mafi girman fineness na iya ci gaba da samar da kyakkyawar riƙewar ruwa da haɗin kai, yana nuna haɓakar ƙarfin ƙarfi.
Misali, a cikin gwaji, ƙarfin matsawa na ethers cellulose tare da fineness na raga 80, raga 100, da raga 120 a cikin kwanaki 28 shine 25 MPa, 28 MPa, da 30 MPa, bi da bi. Wannan yana nuna cewa mafi girman fineness na ether cellulose, mafi girma ƙarfin matsa lamba na turmi.
Aikace-aikacen da ya dace na inganta lafiyar ether cellulose
1. Daidaita bisa ga yanayin gini
Lokacin da ake ginawa a cikin busassun yanayi ko a ƙarƙashin yanayin zafi mai zafi, za a iya zaɓar ether cellulose tare da mafi girma mafi kyau don haɓaka ruwa na turmi da kuma rage ƙarfin ƙarfin da ruwa ya haifar.
2. Yi amfani da sauran additives
Cellulose ether tare da mafi girma fineness za a iya amfani da tare da sauran additives (kamar ruwa masu rage ruwa da iska entraining jamiái) don kara inganta aikin turmi. Alal misali, yin amfani da masu rage ruwa na iya rage yawan ruwa-ciminti rabo da kuma ƙara yawan turmi, yayin da ether cellulose yana ba da ajiyar ruwa da ƙarfafa tasirin. Haɗuwar waɗannan biyun na iya haɓaka ƙarfin turmi sosai.
3. Inganta tsarin gini
A lokacin aikin ginin, ya zama dole don tabbatar da cewa ether cellulose ya narkar da shi kuma ya tarwatsa. Ana iya samun wannan ta hanyar ƙara lokacin haɗawa ko amfani da kayan haɗin da suka dace don tabbatar da cewa an yi amfani da fa'idar fa'ida ta ether mai kyau.
Kyakkyawan ether cellulose yana da tasiri mai mahimmanci akan ƙarfin turmi. Cellulose ether tare da mafi girma fineness iya mafi alhẽri taka rawar da ruwa riƙewa, thickening da kuma inganta dubawa bonding, da kuma inganta farkon ƙarfin da dogon lokaci inji Properties na turmi. A cikin aikace-aikacen aikace-aikacen, ingancin ether ɗin cellulose ya kamata a zaɓa da kyau kuma a yi amfani da shi bisa ga takamaiman yanayin gini da buƙatun don haɓaka aikin turmi da haɓaka ingancin aikin.
Lokacin aikawa: Juni-24-2024