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 tithe kumanga konkriti, nthawi zambiri timawonjezera ma retarders, othandizira mpweya, ochotsa thobvu, zoteteza, zokometsera, nthawi yachisanu zimawonjezera antifreeze.
Madzi kuchepetsa wothandizila 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 kuchepetsa madzi wamba wothandizila amatha kusintha bwino konkire kusakaniza zinthu. Kusiyanasiyana kwa konkire admixture.They ndi ofunika kwambiri admixtures mu zomangamanga engineering. zotsatira.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 kuchepetsa madzi 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 wambiri, sizingabweretse konkriti pang'onopang'ono; Pansi pa mlingo wokhazikika wa simenti, kutsika kwa konkire wosakanikirana 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 wochepetsera madzi wamba wamba wochepetsera madzi ndi wochepa kwambiri womwe umagwiritsidwa ntchito pokonzekera kalasi yamphamvu siwokwera, zofunika kuchepetsa madzi a konkire.
4. Pankhani ya mtengo wokonzekera, polycarboxylic acid yochepetsera madzi yochepetsera madzi imakhala yolimba kwambiri, kotero mtengo wake ndi wokwera;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, retarded mkulu dzuwa kuchepetsa wothandizila mpweya-entraining imayenera jianshuiji geometric constituent wa kupanga mkulu dzuwa kuchepetsa wothandizila ali ndi ubwino, akhoza bwino kukumana konkire mwatsopano ndi owumitsidwa konkire ntchito zosiyanasiyana zofunika.
Nthawi yotumiza: Jan-08-2022