Kwanan Wata: 7, Nuwamba, 2022
Ayyukan siminti na siminti shine inganta haɓakar simintin siminti da rage adadin siminti a cikin siminti.Saboda haka, kankare admixtures ana amfani da ko'ina a daban-daban gine-gine filayen.
Hanyar aikin kankare admixtures:
Abubuwan da aka saba amfani da su na tushen naphthalene da abubuwan da suka dogara da polycarboxylate sune mahadi na kwayoyin halitta tare da girman nauyin kwayoyin halitta (gaba daya 1500-10000) kuma suna cikin rukunin surfactants.
Kwayoyin na surfactant yana da tsarin bipolar, ɗayan ƙarshen rukuni ne na lipophilic wanda ba na polar ba (ko ƙungiyar hydrophobic ba na polar ba), kuma ɗayan ƙarshen rukuni ne na polar hydrophilic.Bayan an narkar da surfactant a cikin ruwa, yana iya yin ayyuka daban-daban kamar watsawa, wetting, emulsifying, kumfa da wankewa yayin rage tashin hankali.
A. Adsorption-watsewa
Rashin ruwa na haɗin kankare ya dogara da adadin ruwan kyauta a cikin siminti.Bayan an ƙara ƙarawa a cikin siminti, ɓangarori na simintin suna tarwatsa juna saboda tasirin kwatancen kwatankwacin simintin da ke saman sassan simintin, wanda ke haifar da turɓayar wutar lantarki a tsakanin su.A sakamakon haka, tsarin flocculation na siminti ya lalace, kuma an fitar da ruwa mai yawa na kyauta, wanda ke ƙara yawan ruwa na cakuda kankare.
B. Yin jika
Saboda tsarin jagoranci na kwayoyin admixture a saman simintin siminti, an kafa fim ɗin ruwa mai narkewa na monomolecular.Wannan fim ɗin na ruwa yana ƙara yawan hulɗar tsakanin siminti da ruwa a gefe guda, kuma yana da wani tasiri na jika a daya bangaren.Saboda haka, siminti ya cika ruwa sosai kuma ƙarfin simintin yana ƙaruwa da sauri.
Ainihin ayyuka na kankare admixtures:
1. Ba tare da rage yawan amfani da ruwa na naúrar ba, rabon ruwa mai ɗaurin ruwa ya kasance ba canzawa ba, wanda ke inganta aikin sabobin siminti kuma yana inganta yawan ruwa;saboda ƙarar wurin tuntuɓar juna tsakanin siminti da ruwa, siminti ya cika ruwa sosai, ko da yake ɗigon ruwa mai ɗaurewa Invariant, ƙarfin siminti sau da yawa yana da ƙayyadaddun ci gaba.
2. A ƙarƙashin yanayin kula da wani nau'i na aiki, rage yawan ruwa, rage yawan ruwa mai haɗakar ruwa, da inganta ƙarfin siminti.
3. A karkashin yanayin kiyaye wani ƙarfi, rage adadin siminti kayan, rage yawan ruwa, ci gaba da ruwa-binder rabo ba canzawa, da ajiye siminti da sauran siminti kayan.
Yadda ake samo asali da amfani da kankare yadda ya kamata:
Samowa da kyau da kuma amfani da abubuwan haɗin gwiwa na iya haifar da ƙimar tattalin arziki da fasaha mai girma.Yana iya ba kawai inganta ƙarfin kankare, amma kuma rage farashin kankare mix rabo.
Takamammen hanyar ita ce kamar haka:
a.Gwaji mahada
Gwaji da gwajin alamun fasaha daban-daban na admixtures shine muhimmiyar hanyar haɗi kafin siyan shawarwari.Ta hanyar gwajin, ya kamata a ƙayyade ma'auni na cancantar alamun fasaha daban-daban na admixture.Ciki har da m abun ciki na admixtures, ruwa rage kudi, yawa, slurry fluidity, kankare ruwa rage kudi da sauran fasaha Manuniya.Ana ba da shawarar cewa za a yi amfani da ƙimar rage yawan ruwa a matsayin maɓalli mai mahimmanci don auna ingancin matakin haɗaɗɗen.
b.Sayi
Bayan an fayyace ƙa'idodin cancanta don haɗakarwa, ana iya fara tattaunawar sayayya.Ana ba da shawarar cewa masu kera kayan maye yakamata su gayyato tayi daidai da ƙa'idodin da gwajin ya ƙayyade.A kan ra'ayi cewa ingancin kayan aiki na admixture bai kasance ƙasa da buƙatun ƙaddamarwa ba, za a ƙayyade mai sayarwa bisa ga ka'idar cin nasara a farashi mai sauƙi.
A lokaci guda, da zaɓi na kankare admixture masana'antun ya kamata comprehensively la'akari da manufacturer ta samar da sikelin, sufuri nesa, sufuri iya aiki, wadata kwarewa da kuma samar da ingancin matakin manyan-sikelin hadawa shuke-shuke ko manyan-sikelin aikin injiniya ayyukan, da kuma bayan-tallace-tallace da sabis damar. da kuma matakan.A matsayin mai nuna alama guda ɗaya don nunin masana'anta.
c.Hanyar yarda
Ya kamata tashar hadawa ta gwada abubuwan da ake hadawa kafin a saka kayan a cikin ajiya, kuma za a iya sanya sakamakon gwajin a cikin ajiya ne kawai bayan an tabbatar da sakamakon gwajin bisa ga ka'idojin da aka sanya hannu a cikin kwangilar.Ana ba da shawarar don bambance tsakanin maɓalli masu mahimmanci da masu nuni.Ta hanyar yin aiki na dogon lokaci, marubucin ya yi imanin cewa mahimman alamun abubuwan haɗin gwiwa sune raƙuman rage ruwa (turmi) da ƙarancin rage yawan ruwa;Ma'anar tunani sune yawa (ƙayyadaddun nauyi), m abun ciki da ruwa na manna siminti.Saboda lokacin gwaji, alamun fasaha waɗanda aka gwada gabaɗaya a cikin hanyar haɗin kai sune yawa, yawan ruwa na man siminti da ƙimar rage ruwa (turmi).
Lokacin aikawa: Nuwamba-07-2022