Tsiku Lotumiza: 18, Nov, 2024
4. Vuto la pang'onopang'ono oyambirira mphamvu chitukuko cha konkire
Ndi kupita patsogolo kwachangu kwa mafakitale okhala m'dziko langa, kufunikira kwa zida za precast konkire kukukulira. Chifukwa chake, kuwongolera kukula kwamphamvu koyambirira kwa konkriti kumatha kufulumizitsa chiwongolero cha nkhungu, potero kuwongolera magwiridwe antchito a precast konkire. Kugwiritsiridwa ntchito kwa PCE kukonzekera zigawo zikuluzikulu za konkire kungathe kupititsa patsogolo maonekedwe a zigawozo, ndipo chifukwa cha dispersibility yabwino ya PCE, kugwiritsidwa ntchito kwake popanga zigawo zamphamvu kwambiri za precast kungapereke kusewera kwathunthu kwa ubwino wake wapawiri mu ntchito ndi mtengo. , kotero ili ndi chiyembekezo chogwiritsa ntchito.
5. Vuto lalikulu la mpweya mu zosakaniza za konkire ndi PCE
Monga surfactant, maunyolo amtundu wa hydrophilic mu mawonekedwe a PCE amakhala ndi mpweya wamphamvu kwambiri. Ndiko kuti, PCE idzachepetsa kuthamanga kwa madzi osakaniza, kuti zikhale zosavuta kuti konkire iwonetsere ndi kupanga thovu la kukula kosiyana komanso kosavuta kuphatikizira panthawi yosakaniza. Ngati thovuli silingathe kutulutsidwa mu nthawi, lidzakhudza maonekedwe a konkire komanso kuwononga mphamvu ya konkire, choncho ayenera kupatsidwa chisamaliro chokwanira.
6. Vuto la kusagwira ntchito bwino kwa konkire yatsopano
Zomwe zimagwira ntchito za konkire zatsopano zimaphatikizapo fluidity, mgwirizano ndi kusunga madzi. Fluidity imatanthawuza kuthekera kwa konkriti osakaniza kuti aziyenda ndikudzaza formwork mofanana ndi wandiweyani pansi pa kulemera kwake kapena kugwedezeka kwamakina. Kugwirizana kumatanthawuza kugwirizanitsa pakati pa zigawo za konkire kusakaniza, zomwe zingapewe kusagwirizana ndi kulekanitsa panthawi yomanga. Kusungirako madzi kumatanthawuza kuthekera kwa kusakaniza konkire kusunga madzi, zomwe zingapewe kutaya magazi panthawi yomanga. Pokonzekera kwenikweni konkire, kumbali imodzi, kwa konkire yotsika mphamvu, kuchuluka kwa zipangizo za simenti sipamwamba ndipo chiwerengero cha madzi-binder ndi chachikulu. Kuphatikiza apo, konkriti yotereyi nthawi zambiri imakhala yosauka. Kugwiritsiridwa ntchito kwa PCE ndi mlingo wapamwamba wochepetsera madzi kukonzekera konkire yotereyi kumakhala kosiyana ndi kukhetsa magazi kwa osakaniza; Komano, mkulu-mphamvu konkire anakonza pogwiritsa ntchito m'munsi-mphamvu simenti, kuonjezera kuchuluka kwa zipangizo cementitious ndi kuchepetsa madzi-binder chiŵerengero sachedwa mkulu konkire mamasukidwe akayendedwe, osauka osakaniza fluidity ndi otaya mlingo wosakwiya. Choncho, otsika kwambiri kapena mkulu mamasukidwe akayendedwe konkire osakaniza adzatsogolera osauka konkire ntchito, kuchepetsa zomangamanga, ndi kukhala kwambiri zoipa kwa makina katundu ndi durability konkire.
Nthawi yotumiza: Nov-19-2024
