Ukuhlelwa kwemixube ekhonkrithi:
1. I-Admixtures yokuphucula iimpawu ze-rheological zemixube yekhonkrithi, kubandakanywa nezinciphisi ezahlukeneyo zamanzi, i-air-entraining agents kunye ne-pumping agents.
2. I-Admixtures yokulungelelanisa ixesha lokumisela kunye nokuqina kweempawu zekhonkrithi, kubandakanywa i-retarders, i-ejenti zamandla okuqala kunye ne-accelerators.
3. I-Admixtures yokuphucula ukuqina kwekhonkrithi, kubandakanywa i-air-entraining agents, ii-agent zokukhusela amanzi kunye ne-rust inhibitors, njl.
4. I-Admixtures yokuphucula ezinye iimpawu zekhonkrithi, kubandakanywa i-air-entraining agents, i-expansion agents, i-antifreeze agents, i-colorants, i-waterproofing agents kunye ne-pumping agents, njl.
Isinciphisi samanzi:
I-arhente yokunciphisa amanzi ibhekisela kwi-admixture enokugcina ukusebenza kwekhonkrithi ingatshintshi kwaye inciphise kakhulu ukuxuba kwayo ukusetyenziswa kwamanzi. Ekubeni i-arhente yokunciphisa amanzi yongezwa kwindlu yokuxuba, ukuba iyunithi yokusetyenziswa kwamanzi ayitshintshi, ukusebenza kwayo kunokuphuculwa kakhulu, ngoko ke i-agent yokunciphisa amanzi ibizwa ngokuba yi-plasticizer.
1. Indlela yokusebenza ye-agent yokunciphisa amanzi Emva kokuba i-samente ixutywe namanzi, iinqununu ze-samente ziya kutsalelana kwaye zenze ii-flocs ezininzi emanzini. Kwisakhiwo se-floc, amanzi amaninzi axutywayo ahlanganiswe, ukwenzela ukuba la manzi angakwazi ukudlala indima yokwandisa umbane we-slurry. Xa i-ejenti yokunciphisa amanzi yongezwa, i-agent yokunciphisa amanzi iyakwazi ukutshabalalisa ezi zakhiwo ze-flocculent kwaye ikhulule i-encapsulated free water, ngaloo ndlela iphucula i-fluidity yomxube. Ngeli xesha, ukuba ukusebenza kwekhonkrithi ye-original kusafuneka kugcinwe kungatshintshi, amanzi axutywayo angancitshiswa kakhulu kwaye umphumo wokunciphisa amanzi unokufumaneka, ngoko ubizwa ngokuba yi-arhente yokunciphisa amanzi.
Ukuba amandla ahlala engatshintshi, umthamo wesamente unokuncitshiswa ngelixa unciphisa amanzi ukuze ufezekise injongo yokugcina i-samente.
2. Iimpembelelo zobugcisa kunye nezoqoqosho zokusebenzisa i-arhente yokunciphisa amanzi zineempembelelo ezilandelayo zobugcisa kunye nezoqoqosho
a. Ubungakanani bokuxuba amanzi bunokuncitshiswa nge-5 ~ 25% okanye ngaphezulu xa ukusebenza kungatshintshi kwaye inani le-samente lingancitshiswa. Ekubeni umlinganiselo wamanzi-samente uyancitshiswa ngokunciphisa inani lokuxuba amanzi, amandla anokunyuswa ngo-15-20%, ngakumbi amandla okuqala aphuculwe kakhulu.
b. Ngaphantsi komqathango wokugcina umlinganiselo womxube wokuqala ungatshintshi, ukuthotywa komxube kunokunyuswa kakhulu (i-100 ~ 200mm inokunyuswa), okwenza kube lula ukwakhiwa kunye nokuhlangabezana neemfuno zokupompa ukwakhiwa kwekhonkrithi.
c. Ukuba amandla kunye nokusebenza kugcinwa, i-samente inokugcinwa nge-10 ~ 20%.
d. Ngenxa yokunciphisa umthamo wamanzi okuxuba, ukuphuma kwegazi kunye nokwahlulwa komxube kunokuphuculwa, okunokuphucula ukuxhathisa kweqabaka kunye nokunganyangeki kwekhonkrithi. Ngoko ke, ukuqina kwekhonkrithi esetyenziswayo kuya kuphuculwa.
3. Izinciphisi zamanzi ezisetyenziswayo ngoku
Iiarhente zokunciphisa amanzi ikakhulu ziquka i-lignin series, i-naphthalene series, i-resin series, i-molasses series kunye ne-humic series, njl. umsebenzi ophambili. I-arhente yokunciphisa amanzi, i-ejenti yokunciphisa amanzi e-air-entraining, njl.
Ixesha lokuposa: Feb-18-2022
