Tsiku Lotumiza: 12, Aug, 2024
1. Polycarboxylic acid-based high-performance water reduction agent ndi yosiyana ndi naphthalene-based high-performance yochepetsera madzi kuti:
Choyamba ndi kusiyanasiyana ndi kusinthika kwa mapangidwe a maselo; chachiwiri ndi kupititsa patsogolo kuika maganizo ndi kukonza ubwino wochepetsera madzi ogwiritsira ntchito bwino kwambiri, ndikukwaniritsa njira zobiriwira komanso zopanda kuipitsa.
Kuchokera pamachitidwe ake, mawonekedwe a maselo a polycarboxylic acid ochepetsa madzi amakhala ngati chisa. Gulu lamphamvu la polar anionic "anchoring" mu unyolo waukulu limagwiritsidwa ntchito kutsatsa pa tinthu tating'ono ta simenti. Chisa chotalikira kunja chimathandizidwa ndi maunyolo ambiri anthambi. Dzino dongosolo amapereka zokwanira okhudza malo dongosolo zotsatira zina kubalalitsidwa kwa simenti particles. Poyerekeza ndi kuthamangitsidwa kwamagetsi kwa magawo awiri amagetsi a naphthalene-based reduction agents, cholepheretsa steric chimasunga kubalalitsidwa kwanthawi yayitali.
Posintha moyenerera chisa chochepetsera madzi cha polycarboxylate ndikusintha moyenera kachulukidwe ndi kutalika kwa maunyolo am'mbali, chotsitsa chotsitsa madzi komanso champhamvu choyambirira chochepetsera madzi choyenera zigawo zopangira kale chingapezeke.
Ma polycarboxylic acid ochepetsa madzi ochepetsa madzi amatha kusinthidwa ndikusinthidwa malinga ndi zofunikira kuti akwaniritse cholinga chosinthira magwiridwe antchito, m'malo mogwiritsa ntchito kuphatikiza kosavuta kuti asinthe. Kutengera kumvetsetsa kumeneku, kungatilimbikitse kukulitsa luso lathu laukadaulo m'tsogolomu.
2. Kusintha kwa zinthu zochepetsera madzi za polycarboxylic acid kuzinthu zomangira simenti:
Mitundu yosiyanasiyana ya simenti imakhala ndi machulukidwe osiyanasiyana a polycarboxylic acid-based superplasticizers, kotero ndikofunikira kwambiri kupeza machulukitsidwe a simenti zosiyanasiyana. Komabe, ngati wogwiritsa ntchitoyo akunena kuti 1.0% yokha ndiyomwe imaloledwa kuwonjezeredwa, ngati simenti yosankhidwayo siisinthika pa mlingo uwu, zidzakhala zovuta kuti wothandizira admixture agwire, ndipo njira yowonjezera nthawi zambiri imakhala yochepa.
Phulusa loyamba limakhala ndi kusintha kwabwino, pamene phulusa lachiwiri ndi lachitatu nthawi zambiri silili loyenera. Pakadali pano, ngakhale kuchuluka kwa polycarboxylic acid kuchulukira, zotsatira zake sizikuwonekera. Nthawi zambiri pamene mtundu wina wa simenti kapena ntchentche phulusa ali osauka kusinthika kwa admixtures, ndipo inu simuli okhutitsidwa kwathunthu pamene inu kusintha admixture wina, inu m'kupita m`malo zinthu simenti.
3.Vuto la matope mumchenga:
Pamene matope a mchenga ali okwera, mlingo wochepetsera madzi wa polycarboxylate-based based reduction agents udzachepetsedwa kwambiri. Kugwiritsa ntchito mankhwala ochepetsa madzi opangidwa ndi naphthalene nthawi zambiri kumathetsedwa powonjezera mlingo, pamene mankhwala ochepetsa madzi a polycarboxylic acid samasintha kwambiri pamene mlingo wawonjezeka. Nthawi zambiri, madzi amadzimadzi akafika pamlingo wofunikira, konkire yayamba kutulutsa magazi. Panthawiyi, zotsatira za kusintha kwa mchenga, kuwonjezeka kwa mpweya kapena kuwonjezera zowonjezera sizingakhale zabwino kwambiri. Njira yabwino ndiyo kuchepetsa matope.
Nthawi yotumiza: Aug-12-2024
