Tsiku Lotumiza:19 Feb,2024
Zofunika za njira yomanga:
(1) Popanga gawo losakanikirana la konkriti, kugwiritsa ntchito kophatikizana kwapamwamba kochepetsera madzi ochepetsa madzi ndi mpweya wowongolera mpweya kumathetsa kukhazikika kwa zomanga za konkire m'malo ozizira kwambiri;
(2) Mwa kuphatikizira zigawo zochepetsera zowonongeka muzitsulo zochepetsetsa zochepetsera madzi, zotsatira za kutentha kwakukulu m'chilimwe pa ntchito yogwira ntchito ya konkire zimathetsedwa;
(3) Kupyolera mu kusanthula kuyesera, chikoka cha matope okhutira konkire pa workability ndi compressive mphamvu konkire;
(4) Mwa kupanga mchenga wouma ndi mchenga mu gawo linalake, chodabwitsa chakuti mtundu umodzi wa mchenga wa konkire sungathe kukumana ndi ntchito ya konkire imathetsedwa;
(5) Zinthu zomwe zimakhudza ntchito ya konkire zimafotokozedwa, ndipo zotsatira za zinthu zoipa pa ntchito ya konkire zimapewedwa panthawi yomanga konkire.
Mfundo yogwirira ntchito yochepetsera madzi yogwira ntchito kwambiri:
(1) Kubalalitsidwa: The wothandizila madzi kuchepetsa ndi directionally adsorbed pamwamba pa simenti particles, kuwapangitsa kunyamula mlandu womwewo kupanga electrostatic repulsion, amene amalimbikitsa simenti particles kumwazikana wina ndi mzake, kuwononga flocculation dongosolo anapanga ndi simenti slurry, ndi kutulutsa mbali ya madzi wokutidwa.Mogwira kuonjezera fluidity wa konkire osakaniza.
(2) Mafuta opangira mafuta: Mankhwala ochepetsera madzi ali ndi gulu lamphamvu kwambiri la hydrophilic, lomwe limapanga filimu yamadzi pamwamba pa tinthu tating'ono ta simenti, kuchepetsa kukana kwachitsulo pakati pa particles simenti, potero kumawonjezera madzi a konkire.
(3) Cholepheretsa chowumitsa: Madzi ochepetsera madzi ali ndi maunyolo a hydrophilic polyether mbali, omwe amapanga hydrophilic-dimensional adsorption wosanjikiza pamwamba pa tinthu tating'onoting'ono ta simenti, zomwe zimapangitsa kuti zikhale zovuta pakati pa simenti particles, potero kuonetsetsa kuti konkire ili ndi katundu wabwino.kugwa.
(4) Kutulutsidwa kwapang'onopang'ono kwa nthambi za copolymerized: Panthawi yopangira ndikukonzekera njira zatsopano zochepetsera madzi, maunyolo a nthambi okhala ndi ntchito zenizeni amawonjezeredwa.Unyolo wa nthambi uwu sikuti umangokhala ndi cholepheretsa chotchinga, komanso ungagwiritsidwe ntchito panthawi ya simenti yayikulu.Ma polycarboxylic acid okhala ndi zotsatira zobalalitsa amatulutsidwa m'malo amchere, omwe amathandizira kufalikira kwa tinthu tating'ono ta simenti ndikuwongolera kutayika kwa konkriti pakapita nthawi.
Nthawi yotumiza: Feb-19-2024