Li-additives tsa Konkreite tse bobebe | Li-Agents tse Foaming tse Phahameng ka ho Fetisisa bakeng sa Konkreite ea Cellular
Superplasticizer ke kenyelletso ea konkreite e eketsang ts'ebetso ea konkreite ha e ntse e fokotsa metsi a eona. Sena se nolofalletsa basebetsi ho kopanya, tšela le ho qeta konkreite, hammoho le ho fokotsa kotsi ea manonyeletso a batang sehlahisoa se felileng. Holim'a moo, motsoako o ekelitsoeng o tla ntlafatsa matla a konkreite.
Li-superplasticizers li entsoe ka limolek'hule tsa polymer tse qhibilihang ka metsing. Ha e kopantsoe le konkreite, limolek'hule tsena li khomarela holim'a likaroloana tsa samente. Sena se theha maqhama a ionic pakeng tsa molek'hule le lithollo tsa samente. E boetse e fokotsa tšitiso ea steric, e leng tšitiso e bakoang ke tšebelisano ea intra kapa inter-molecular ka har'a molek'hule.
Mmaraka oa lefats'e oa li-superplasticizer tsa konkreite o hola ka potlako. Sena se bakoa haholo ke tlhokahalo e phahameng ea konkreite e itokiselitseng ho kopanya (RMC) mererong ea kaho lefatšeng ka bophara. Tlhokahalo ea RMC e lebelletsoe ho eketseha le ho feta ka nts'etsopele ea merero e fapaneng ea litšebeletso tsa motheo haufinyane.
Bakeng sa ho fihlela tlhoko e ntseng e hola ea RMC, lik'hamphani li shebane le ho etsa konkreite ea boleng bo holimo ka thuso ea mahlale a tsoetseng pele. Superplasticizers ke tse ling tsa metsoako ea bohlokoa e sebelisoang ho RMC. Lik'hemik'hale tsena li na le boikarabelo ba ho fetola konkreite e tlaase le e thata hore e be e phallang, thepa e boreledi. Li boetse li thusa ho theola karo-karolelano ea w/c le ho thusa ho fokotsa litšekamelo tsa ho putlama ha konkreite e thata..
KEM SUPLAST ea Fritz-Pak 101 S ke sulphonate naphthalene formaldehyde e thehiloeng superplasticizer e fanang ka melemo e latelang: