Kwanan Wata:19, Feb,2024
Siffofin hanyar gini:
(1) A lokacin da zayyana da kankare mix rabo, da composite amfani da high-yi rage ruwa wakili da kuma iska-entraining wakili warware karko da bukatun na kankare Tsarin a cikin tsananin sanyi yankunan;
(2) Ta hanyar haɗa abubuwan da ke adana slump a cikin manyan abubuwan da ke rage yawan ruwa, ana magance tasirin yanayin zafi a lokacin rani akan aikin siminti;
(3) Ta hanyar bincike na gwaji, tasirin abun ciki na laka a cikin kankare a kan aiki da ƙarfin matsawa na kankare;
(4) Ta hanyar haɗa yashi mai laushi da yashi mai kyau a cikin wani ƙayyadaddun ƙayyadaddun ƙayyadaddun, al'amarin cewa nau'in yashi guda ɗaya ba zai iya cika aikin siminti ba;
(5) An bayyana abubuwan da suka shafi aikin simintin, kuma ana guje wa tasirin abubuwan da ba su da kyau a kan aikin aikin simintin yayin aikin ginin.
Ka'idar aiki na babban aikin rage yawan ruwa:
(1) Watsawa: Mai rage ruwa yana sanyawa a kan saman simintin simintin, yana sa su ɗaukar caji iri ɗaya don samar da electrostatic repulsion, wanda ke inganta ƙwayoyin siminti don tarwatsa tare da juna, yana lalata tsarin flocculation da aka kafa ta hanyar siminti slurry, kuma ya saki wani ɓangare na ruwan nannade. Yadda ya kamata ƙara fluidity na kankare cakuda.
(2) Tasirin mai: Mai rage ruwa yana da ƙungiyar hydrophilic mai ƙarfi sosai, wanda ke samar da fim ɗin ruwa a saman simintin siminti, yana rage juriya mai zamewa tsakanin sassan siminti, ta haka yana ƙara haɓaka haɓakar siminti.
(3) Tsayawar Steric: Wakilin mai rage ruwa yana da sarƙoƙi na gefe na hydrophilic polyether, wanda ke samar da Layer adsorption mai girma uku na hydrophilic a saman simintin siminti, yana haifar da tsangwama tsakanin sassan siminti, don haka tabbatar da cewa simintin yana da kyawawan kaddarorin. rugujewa.
(4) Sakamakon raguwa-saki na rassan copolymerized grafted: A lokacin samarwa da shirye-shiryen shirye-shiryen sabbin wakilai masu rage ruwa, an ƙara sarƙoƙi mai rahusa tare da takamaiman ayyuka. Wannan sarkar reshe ba wai kawai yana da tasirin hanawa ba, amma kuma ana iya amfani dashi yayin babban hydration na siminti. Ana fitar da acid polycarboxylic tare da tasirin tarwatsawa a cikin yanayin alkaline, wanda ke inganta tasirin tarwatsa siminti kuma yana sarrafa ƙarancin asarar kankare cikin wani ɗan lokaci.
Lokacin aikawa: Fabrairu-19-2024
