Zopangira thovu mu Konkire

Zomwe zilipo panopa zimapereka mpweya mkati mwa zosakaniza za konkire zapulasitiki. Mpweya wa konkriti ndi gawo lofunikira lomwe limakhudza kulimba kwa konkire. Mpweya woyenera uyenera kukhazikitsidwa popuma komanso panthawi yosakaniza. Ngati mpweya wokhutira ndi wotsika kuposa mlingo ankafuna, konkire sangathe kukwaniritsa zofunikira za polojekitiyi.

Pofuna kulamulira mpweya zili konkire, njira zosiyanasiyana zagwiritsidwa ntchito. Njira imodzi ikuphatikizapo kuwonjezera mankhwala osakaniza. Mankhwalawa amachepetsa kufunikira kwa madzi, kuwongolera kukhazikika ndi kuchepera kwa konkriti, ndi kuletsa dzimbiri.

Njira inanso imaphatikizapo kugwiritsa ntchito zinthu zogwira ntchito pamwamba. Ogwira ntchito pamtunda amatha kupanga mutu wa thovu akaphatikizidwa m'madzi. Izi zogwira ntchito pamwambazi nthawi zambiri zimakhala ndi alkyl ethoxylate ndipo zimatha kusakanikirana ndi pulasitiki yosakanikirana ndi simenti..

Alkyl alkoxylate yochokera pamwamba yogwira ntchito yatsimikizira kuti ndi yothandiza makamaka ikaphatikizidwa ndi dispersants za simenti ya polycarboxylate.. Ma dispersants amtundu wa polycarboxylate awa amadziwika ndi kulemera kwawo kwa ma molekyulu otsika (Zithunzi za HLB) za 0.5 ku 5 peresenti.

Zosiyanasiyana zomwe zidapangidwa pano zimaphatikizanso kuphatikizika kwa alkyl ethoxylate based surface active agent kapena air intraining agent ku pulasitiki ya hydratable cementitious mix.. Chitsanzo cha alkyl ethoxylate pamwamba chogwira ntchito chimakhala ndi magulu atatu kapena khumi ndi asanu a ethoxylate., mwina magulu osakwana awiri a propoxylate.

Zosakaniza za konkire zapulasitiki zimakhala ndi chosakaniza cha simenti, bwino ndi coarse aggregate, ndi zowonjezera. Zomangira simenti wamba ndi simenti wamba ku Portland. Komabe, imathanso kusakanikirana ndi zida zina.