Tsiku Lotumiza: 29, Jan, 2024
Pakali pano, kugwiritsa ntchitopolycarboxylate superplasticizerzochepetsera madzi ndizofala kwambiri pomanga, chifukwa magwiridwe antchito awo amatha kupititsa patsogolo mphamvu zomanga ndi luso laukadaulo. Izi ndi zobiriwira, zosapsa, komanso siziphulika, ndipo zimatha kunyamulidwa ndi sitima ndi galimoto. Pamene mlingo wa madzi kuchepetsa wothandizira kufika 0,9% ~ 1.1%, kugwa konkire ndi madzi simenti chiŵerengero cha 0.12-0.16 ndi mchenga zili 38% akadali anakhalabe pamwamba 250mm kwa maola 2, kukula akhoza kufika 600mm, nthawi yomaliza yokhazikitsa ili mkati mwa maola a 24, ndipo palibe chodabwitsa cha tsankho. Mphamvu yopondereza pa masiku a 90 imakhala pamwamba pa 180MPa.Choncho imagwira ntchito yofunika kwambiri pa zomangamanga, ndipo zotsatirazi zidzawonetsa ubwino wake.
1. Zomwe zili zamchere ndi ayoni wa kloridi ndizochepa kwambiri, komanso kuwonjezera kwapolycarboxylate superplasticizermowa mayi sayambitsa dzimbiri zitsulo mipiringidzo ndipo alibe zotsatira zoipa pa konkire. Panthawi imodzimodziyo, mankhwalawo samatulutsa mchere kapena kusungunula nyengo yotentha, zomwe zimapangitsa kuti zikhale zosavuta kugwiritsa ntchito.
2. Zimapindulitsa pakugwira ntchito kwa zosakaniza za konkire, zimachepetsa magazi, zimathandizira maonekedwe abwino komanso kukhazikika kwa konkire yolimba, ndipo ndizofunikira kwambiri kuti zigwiritsidwe ntchito pamapulojekiti omveka bwino.
3. Konkire yokonzedwa ndipolycarboxylate superplasticizermadzi kuchepetsa wothandizila mayi mowa sadzakhala kusonyeza tsankho zoonekeratu kapena magazi ngakhale pansi pa mikhalidwe mkulu slump, ndi maonekedwe mtundu wa konkire ndi yunifolomu. Akagwiritsidwa ntchito pokonzekera konkire yapamwamba, konkire imakhala ndi ntchito yabwino, yogwirizana bwino, ndipo imakhala yosavuta kusakaniza.
Chifukwa chake, zochepetsera madzi za polycarboxylate ndizofunikira kwambiri pakumanga. Akagwiritsidwa ntchito, nthawi zambiri amawonjezeredwa molingana, zomwe sizimangopangitsa kuti ntchitoyi ikhale yolimba komanso imachepetsa zoopsa zosiyanasiyana. Pokhapokha pomvetsetsa zakuthupi ndi ubwino wake tingazigwiritse ntchito bwino m'tsogolomu.Polycarboxylate superplasticizerchochepetsera madzi ndi chochepetsera madzi chapamwamba kwambiri komanso chotayira simenti chomwe chimagwiritsidwa ntchito popanga konkire ya simenti. Amagwiritsidwa ntchito m'mapulojekiti monga misewu yayikulu, milatho, madamu, tunnel, ndi nyumba zazitali.
Nthawi yotumiza: Jan-30-2024
