Tsiku Lotumiza:7,JAN,2022
Polycarboxylic acidchakumwa cha mayi chimapangidwa mwachindunji kapena ndende yake ndi yokwera kwambiri, madzi amadzimadzi amadzimadzi amadzimadzi ocheperako sikophweka, mumadzimadzi amadzimadzi amadzimadzi amadzimadzi wamba malinga ndi zinthu zamchenga zomwe mumagwiritsa ntchito komanso nyengo yakumaloko kapena zofunikira za kusakaniza konkire. Kuti tikwaniritse ntchito yomanga konkire kuti tipange konkriti zotheka, nthawi zambiri timawonjezera ma retarders, air etraining agents, defoaming agents, preservatives, thickening agents, m'nyengo yozizira. nthawi idzawonjezera antifreeze.
Madzi kuchepetsa wothandizira ndi wamba konkire admixture, sizimakhudza kumanga konkire ndi zinthu zosavuta, ali ndi zotsatira za kuchepetsa madzi ndi utithandize konkire, mkulu dzuwa kuchepetsa wothandizila madzi ndi wamba kuchepetsa wothandizila madzi amatha kusintha bwino konkire kusakaniza zinthu. ntchito variable konkire admixture.They ndi zofunika admixtures mu zomangamanga engineering. ndi zodziwikiratu, zomwe zimapangitsa kuti madzi azichepetsera bwino amawonekera kwambiri pakuchepetsa madzi ndi zotsatira zina. Ndiye kwa njira yabwino yochepetsera madzi pamapeto pake ndi chiyani chapamwamba kwambiri? Tiyeni tiphunzire zambiri.
Kugwiritsa ntchito bwino kwambiri kuchepetsa madzi kumatanthauzapolycarboxylatesmakina apamwamba kwambiri apulasitikikuchepetsa madzi, ndipolycarboxylic acidmadzi kuchepetsa wothandizila anawagawa polycarboxylic asidi wamba madzi kuchepetsa wothandizira ndipolycarboxylatesmakina apamwamba kwambiri apulasitikiwogwiritsa ntchito kwambiri kuchepetsa madzi;
1.Wamba madzi kuchepetsa wothandizila madzi kuchepetsa mlingo nthawi zambiri 5% ~ 10%; Mphamvu yochepetsera madzi imatha kufika 12% ~ 25% kapena kupitilira apo.
2. High dzuwa kuchepetsa wothandizila madzi akhoza kukhala mu chiŵerengero madzi simenti pansi chikhalidwe chomwecho, kwambiri kusintha ntchito konkire monga kusakaniza mkulu dzuwa kuchepetsa wothandizila akhoza kukonzekera slump 25cm lalikulu fluidity konkire, nthawi yomweyo. Sizingalowetse mpweya wochuluka, sizingabweretse konkriti pang'onopang'ono; Pansi pa mlingo wa simenti wokhazikika, kutsika kwa konkire wosakaniza ndi wothandizira kuchepetsa madzi nthawi zambiri kumakhala pafupifupi 10cm.
3.Pakugwa kwa zinthu zomwezo, wothandizila kwambiri wochepetsera madzi amatha kuchepetsa kwambiri kugwiritsa ntchito madzi a konkire kusakaniza, kuchepetsa kwambiri kuchuluka kwa simenti yamadzi, kuti apititse patsogolo mphamvu ya konkire, kotero kuti kuchepetsa madzi kumathandizira kwambiri. Amagwiritsidwa ntchito makamaka pakukonza kalasi yamphamvu kwambiri, zofunika kuchepetsa madzi a konkire yam'manja; Mlingo wochepetsetsa wamadzi wamba wamba wochepetsera madzi ndi wotsika kwambiri womwe umagwiritsidwa ntchito pokonzekera kalasi yamphamvu. si mkulu, otsika madzi kuchepetsa zofunika konkire.
4. Pankhani ya mtengo wokonzekera, polycarboxylic acid yochepetsera madzi yochepetsetsa imakhala ndi zinthu zolimba kwambiri, motero mtengo wake ndi wokwera kwambiri; Ndipo wamba wochepetsera madzi olimba okhutira ndi otsika, mtengo nawonso ukhoza kukhala wotsika.
High dzuwa kuchepetsa wothandizila madzi kuposa wamba madzi kuchepetsa wothandizila ali bwino kuchepetsa madzi, kubalalitsidwa, ndi zotsatira kumatheka, komanso ndi ntchito ya madzi kuchepetsa ndi gulu lina Mipikisano zinchito mkulu dzuwa kuchepetsa wothandizila madzi, monga oyambirira mphamvu mkulu dzuwa kuchepetsa wothandizila madzi, kuchepetsedwa mkulu dzuwa kuchepetsa wothandizila, mpweya-entraining imayenera jianshuiji geometric constituent wa kupanga mkulu dzuwa kuchepetsa wothandizila ali ndi ubwino, akhoza bwino kukumana ndi konkriti yatsopano komanso magwiridwe antchito olimba amitundu yosiyanasiyana.
Nthawi yotumiza: Jan-08-2022
