Ɗaya daga cikin manyan bambance-bambancen da ke tsakanin turmi busasshe da turmi na gargajiya shine cewa turmi busasshe ana gyara shi da ƙaramin adadin sinadarai. Ƙara nau'in ƙari ɗaya zuwa turmi busasshe ana kiransa gyara na farko, ƙara ƙarin abubuwa biyu ko fiye shine gyara na biyu. Ingancin turmi busasshe ya dogara da zaɓin abubuwan da aka gyara daidai da kuma daidaitawa da daidaita abubuwa daban-daban. Ƙarin sinadarai suna da tsada kuma suna da babban tasiri akan halayen turmi busasshe. Saboda haka, a cikin zaɓin ƙarin abubuwa, adadin ƙarin abubuwa ya kamata ya kasance a farkon wuri. Ga taƙaitaccen gabatarwa game da zaɓin ƙarin sinadarai cellulose ether.
Cellulose ether wanda kuma aka sani da rheological modifier wani nau'in hadewa ne da ake amfani da shi don daidaita halayen rheological na sabon gaurayen turmi, wanda kusan ake amfani da shi a cikin kowane nau'in turmi. Ya kamata a yi la'akari da waɗannan kaddarorin lokacin zaɓar nau'in da adadin da aka ƙara:
(1) Rike ruwa a yanayin zafi daban-daban;
(2) kauri, danko;
(3) Alaƙar da ke tsakanin daidaito da zafin jiki, da kuma tasirin daidaito a gaban electrolyte;
(4) siffar da matakin etherification;
(5) inganta thixotropy da ikon sanya turmi (wanda ya zama dole don turmi mai rufi a saman tsaye);
(6) Yawan narkewar ruwa, yanayin da kuma cikar narkewar ruwa.
Baya ga ƙara cellulose ether a cikin busasshen turmi (kamar methyl cellulose ether), yana iya ƙara vinyl polyvinyl acid ester, wato, gyare-gyare na biyu. Mai ɗaurewa mara tsari a cikin turmi (siminti, gypsum) na iya tabbatar da ƙarfin matsewa mai yawa, amma ba shi da tasiri sosai akan ƙarfin tauri da ƙarfin lanƙwasa. Vinyl polyvinyl ester yana gina fim ɗin roba a cikin ramin dutse na siminti, yana sa turmi ya iya ɗaukar nauyin nakasa mai yawa, yana inganta juriyar lalacewa. An tabbatar da cewa ta hanyar ƙara adadin methyl cellulose ether da vinyl polyvinyl ester daban-daban a cikin busasshen turmi, turmi mai ɗaure farantin sirara, turmi mai laushi, turmi mai ado na plastering, turmi mai rufin siminti mai iska da turmi mai daidaita kansa na ƙasa mai zubar da ruwa za a iya shirya shi. Haɗa su biyun ba wai kawai zai iya inganta ingancin turmi ba, har ma yana inganta ingancin ginin sosai.
A aikace-aikace na zahiri, domin inganta cikakken aiki, ya zama dole a yi amfani da kayan haɗin da yawa. Mafi kyawun daidaito tsakanin rabon ƙari, madaidaicin kewayon sashi, rabo, na iya samun wani tasiri daga fannoni daban-daban don inganta aikin turmi, amma tasirin gyaran turmi idan aka yi amfani da shi shi kaɗai yana da iyaka, wani lokacin ma yana da mummunan tasiri, kamar zare ɗaya da aka yi amfani da shi, don ƙara mannewar turmi, rage matakin rarrabuwa a lokaci guda, Duk da haka, yawan ruwan turmi yana ƙaruwa sosai kuma ana adana shi a cikin slurry, wanda ke haifar da raguwar ƙarfin matsi. Lokacin da aka ƙara wakilin shiga iska, matakin lalata turmi da yawan amfani da ruwa na iya raguwa sosai, amma ƙarfin matsi na turmi zai ragu saboda ƙarin kumfa. Inganta turmi na dutse don samun matsakaicin aiki, yayin da ake guje wa lalacewar sauran kadarorin, ƙarfin daidaiton turmi na dutse, matakin rarrabuwa da kuma biyan buƙatun injiniya da ƙa'idodi kan ƙayyadaddun fasaha, a lokaci guda, kada a yi amfani da putty na lemun tsami, adana siminti, kare muhalli, da sauransu, daga rage ruwa, danko, kauri ruwa da kuma shigar da iska cikin yanayin plasticization. Ya zama dole a ɗauki matakai masu zurfi don haɓakawa da amfani da kayan haɗin mahadi.
Lokacin Saƙo: Afrilu-29-2022