Ɗayan babban bambance-bambance tsakanin busassun turmi mai gauraya da turmi na gargajiya shi ne, turmi ɗin da aka gauraya da shi ana gyaggyarawa tare da ƙaramin adadin abubuwan da ake ƙarawa na sinadarai.Ƙara guda ɗaya zuwa busassun turmi ana kiransa gyare-gyare na farko, ƙara biyu ko fiye da ƙari ana kiransa gyare-gyare na sakandare.Ingancin busassun turmi foda ya dogara da ainihin zaɓi na abubuwan da aka gyara da daidaitawa da daidaitawa na sassa daban-daban.Saboda abubuwan da ke tattare da sinadarai sun fi tsada, kuma suna da tasiri sosai kan aikin busasshen turmi.Don haka, lokacin zabar abubuwan ƙari, yakamata a ba da fifikon adadin abubuwan ƙari.Mai zuwa shine taƙaitaccen gabatarwa ga hanyar zaɓin sinadari mai ƙari cellulose ether.
Cellulose ether kuma ana kiransa rheology modifier, wani abu da ake amfani da shi don daidaita kaddarorin rheological na sabon cakuda turmi, kuma ana amfani dashi a kusan kowane irin turmi.Ya kamata a yi la'akari da kaddarorin masu zuwa lokacin zabar iri-iri da adadin sa:
(1) Riƙe ruwa a yanayin zafi daban-daban;
(2) Tasiri mai kauri, danko;
(3) Alakar da ke tsakanin daidaituwa da zafin jiki, da kuma tasiri akan daidaito a gaban electrolyte;
(4) Siffar da digiri na etherification;
(5) Inganta turmi thixotropy da ikon sanyawa (wannan yana da mahimmanci don fentin turmi a saman saman tsaye);
(6) Saurin rushewa, yanayi da cikar rushewar.
Baya ga ƙara ether cellulose (irin su methyl cellulose ether) zuwa busassun turmi foda, ana iya ƙara polyvinyl acid vinyl ester, wato, gyare-gyare na biyu.Abubuwan da ke cikin inorganic (ciminti, gypsum) a cikin turmi na iya tabbatar da ƙarfin matsawa mai girma, amma suna da ɗan tasiri akan ƙarfin ƙarfi da ƙarfin sassauƙa.Polyvinyl acetate yana gina fim na roba a cikin ramukan dutsen siminti, yana ba da damar turmi don jure babban nauyin nakasa da inganta juriya.Practice ya tabbatar da cewa ƙara daban-daban adadin methyl cellulose ether da polyvinyl acid vinyl ester zuwa bushe foda turmi iya shirya bakin ciki-Layer smearing farantin bonding turmi, plastering turmi, na ado zanen turmi, da masonry turmi ga aerated kankare tubalan Da kai matakin turmi don zubar da benaye, da dai sauransu. Hadawa biyu ba zai iya inganta ingancin turmi kawai ba, amma kuma yana inganta aikin ginin.
A cikin aikace-aikacen aikace-aikacen, don haɓaka aikin gabaɗaya, ya zama dole a yi amfani da ƙari da yawa a hade.Akwai madaidaicin rabon daidaitawa tsakanin abubuwan da ake ƙarawa.Muddin adadin adadin da adadin ya dace, za su iya inganta aikin turmi daga bangarori daban-daban.Duk da haka, idan aka yi amfani da shi kadai, tasirin gyare-gyare a kan turmi yana da iyaka, kuma wani lokacin har ma da sakamako mara kyau, kamar ƙara cellulose kadai, tare da haɓaka haɗin kai na turmi da rage matakin delamination, yana ƙara yawan yawan ruwa na turmi ajiye shi a cikin slurry, wanda ke haifar da raguwa mai yawa a cikin ƙarfin matsawa;Lokacin da aka haɗe shi da wakili mai hana iska, ko da yake za a iya rage girman matakin ƙwanƙwasa turmi sosai, kuma yawan ruwa yana raguwa sosai, amma ƙarfin matsa lamba na turmi zai kasance yana raguwa saboda ƙarin kumfa na iska.Don inganta aikin turmi na masonry zuwa mafi girma, kuma a lokaci guda kauce wa cutar da sauran kaddarorin turmi, daidaito, shimfidawa da ƙarfin masonry turmi dole ne ya dace da bukatun aikin da fasaha mai dacewa. ƙayyadaddun bayanai.A lokaci guda kuma, ba a yi amfani da lemun tsami ba, adanawa Don ciminti, kare muhalli, da dai sauransu, wajibi ne a dauki matakan da suka dace, haɓakawa da amfani da abubuwan da aka haɗa daga ra'ayi na raguwar ruwa, haɓakar danko, riƙewar ruwa da kauri, kuma iska-entraining plasticization.
Lokacin aikawa: Mayu-08-2023