Tsiku Lolemba: 13, Jun, 2022
Admixtives amatanthauza kalasi yazinthu zomwe zingathandize kukonza konkriti imodzi kapena zingapo. Zolemba zake nthawi zambiri zimakhala zosakwana 5% ya simementi, koma imatha kusintha kwambiri kugwiritsidwa ntchito, mphamvu, kukhazikika kwa concete kapena kusinthitsa simenti.
1. Kugawika kwa Adminitures:
Adretien Adrictures nthawi zambiri amatchulidwa malinga ndi ntchito zazikuluzikulu:
a. Admixtaxures kuti azitha kusintha zamisinkhu zamisinkhu zamisala. Pali madzi ochepetsa madzi, mpweya wabwino kwambiri wopatsa, ukupompompompomponse.
b. Admixtives pakusintha mawonekedwe ndi kuwuma katundu wa konkriti. Pali omasulira makamaka, othamanga, othandizira olimbitsa thupi, ndi zina zambiri.
c. Admictivestures posintha mpweya wa konkriti. Pali othandizira okhala ndi mpweya, omwe amathandizidwa ndi mpweya, ojambula, opindika, etc.
d. Addictures kuti akwaniritse kulimba mtima. Pali othandizira okhala ndi mpweya, ogulitsa madzi, zoletsa dzimbiri ndi zina zotero.
e. Zilonda zomwe zimapereka malo apadera a konkriti. Pali othandizila othandizira, othandizira othandizira, wothandizirana ndi mpweya komanso kupatsa wothandizira.
2. Zogwiritsidwa ntchito kwambiri
Kuchepetsa madzi kumatanthauza kuphatikizika komwe kumachepetsa kusakanikirana kwamadzi komwe kumachitika monkriti; Kapenanso mutha kuwonjezera chotsikira chotsikirako pomwe chiwerengero chosakaniza ndi zowaza zamadzi sungani zosasinthika. Malinga ndi kukula kwa madzi kuchepetsa kuchuluka kapena kuwonjezeka kwa slump, imagawidwa m'magulu awiri: madzi wamba amachepetsa mankhwalawa.
Kuphatikiza apo, pali mankhwala osokoneza bongo, monga opha madzi osungira madzi mpweya, omwe ali ndi zotsatira zoyipa komanso zolimbitsa thupi; Mphamvu yovuta yam'madzi yothetsa madzi imakhala ndi madzi komanso kuchepetsa madzi komanso kusinthasintha; Madzi ochepetsa thupi, alinso ndi ntchito yochedwetsa nthawi ndi zina.
Ntchito yayikulu yamadzi ochepetsa madzi:
a. Kukonza kwambiri ndi gawo lomwelo losakaniza.
b. Madzi ndi mlingo wa simenti sasintha, kuchepetsa madzi, kuchepetsa kuchuluka kwa madzi, ndikuwonjezera mphamvu.
c. Madzi ndi nyonga ndi mphamvu zosasinthika, kumwa simenti kumasungidwa ndipo mtengo wake umachepetsedwa.
d. Sinthani kugwirira ntchito konkriti
e. Sinthani kulimba kwa konkriti
f. Sinthani konkire yayikulu komanso yayikulu.
Mndandanda wa polysulfonite: kuphatikizapo natero Ketone Aldehyde Ikuti, Ndi zina, zogwiritsidwa ntchito zomwe zimagwiritsidwa ntchito kawirikawiri ndi wa Naphthalene sulfoonate folmaldeate.
Phatikizani polycaxttem: moyenera kuwongolera koyambirira kwa hydration ndikuchepetsa kuchepa kwa simenti ya konkriti.
Kusiyana pakati pa njira yochepetsera madzi okwera kwambiri komanso mankhwala wamba amawonekera mosalekeza, kumawonjezera madzi ambiri omwe amatha kuwononga madzi ambiri amatha kumawonjezera madzi ambiri, kapena kuchepetsa nthawi yomwe madzi. Mitundu yothandiza ya madzi wamba ndi yaying'ono.
Mphamvu ya superplastizer pang'ono pamlingo wochepa sangagwiritsidwe ntchito ngati maziko a kuweruza za SuperPlastic. Izi zikuyenera kuwaganizira posankha kutsika kwamadzi. Mlingo woyenera wa superplasticiuric uyenera kutsimikiza mtima poyesa, sikuyenera kugwiritsidwa ntchito pokhapokha ngati kwa wopanga superplasticrization.
Post Nthawi: Jun-13-2022
