Ụbọchị nbipute:10, Nọvemba,2025

Usoro onunu ogwu nke admixtures abụghị uru a kapịrị ọnụ ma ọ dị mkpa ka a gbanwee ya n'ike dịka njirimara nke akụrụngwa, ụdị ọrụ na ọnọdụ gburugburu ebe obibi.

(1) Mmetụta nke ciment Njirimara The ịnweta mejupụtara, fineness na gypsum ụdị simenti kpọmkwem na-ekpebi admixture chọrọ. Simenti nwere nnukwu ọdịnaya C3A (> 8%) nwere ikike mgbasa ozi siri ike maka ndị na-ebelata mmiri ma ọ dị mkpa ka a na-amụba dose ahụ site na 10-20%. Maka 50m2 / kg ọ bụla na-abawanye na ciment kpọmkwem n'elu ala, mmiri na-ebelata dose kwesịrị ịbawanye site na 0.1-0.2% iji kpuchie nnukwu elu. Maka ciment na anhydrite (dihydrate gypsum ọdịnaya <50%), ọnụego mgbasa ozi na-ebelata mmiri na-adị ngwa ngwa ma enwere ike belata usoro onunu site na 5-10%, mana oge ngwakọta ahụ kwesịrị ịgbatị iji hụ na mgbasa otu.

(2) Mmetụta nke mineral admixtures Njirimara adsorption nke ihe ndị na-emepụta ihe ndị dị ka ofufe ash na slag powder ga-agbanwe ntinye uche dị irè nke admixtures. Ikike mgbasa ozi nke klas m na-efe efe (mmiri chọrọ oke ≤ 95%) maka ndị na-ebelata mmiri bụ naanị 30-40% nke ciment. Mgbe ị na-edochi 20% nke ciment, enwere ike belata dose nke mmiri na-ebelata site na 5-10%. Mgbe kpọmkwem n'elu ebe slag ntụ ntụ dị ukwuu karịa 450m2 / kg, na admixture onunu ogwu kwesịrị ka-amụba site 5-8% mgbe dochie 40% nke ciment. Mgbe a na-agwakọta ntụ ntụ na ntụ ntụ na nha 1: 1 (ngụkọta ngbanwe ego 50%), enwere ike belata dose nke mmiri belata site na 3-5% ma e jiri ya tụnyere otu slag powder system n'ihi njirimara adsorption nke abụọ. N'ihi nnukwu ebe dị elu nke silica fume (> 15000m2 / kg), a ghaghị ịbawanye dose nke mmiri na-ebelata site na 0.2-0.3% maka 10% nke ciment dochie.

(3) Mmetụta nke mkpokọta akụrụngwa The apịtị ọdịnaya na urughuru size nkesa nke mkpokọta bụ ihe dị mkpa bases maka ịhazigharị usoro onunu ogwu. Maka 1% ọ bụla na-abawanye n'ime uzuzu uzuzu nke nkume (<0.075mm particles) n'ime ájá, mmiri na-ebelata mmiri kwesịrị ịbawanye site na 0.05-0.1%, n'ihi na nhazi nke porous nke ájá nkume ga-etinye aka na admixture. Mgbe ọdịnaya nke nchikota nke agịga na flake karịrị 15%, a ga-abawanye dose na-ebelata mmiri site na 10-15% iji hụ na encapsulation. Ịbawanye oke urughuru nke mkpokọta na-enweghị isi site na 20mm ruo 31.5mm na-ebelata oke efu, yana enwere ike ibelata usoro onunu site na 5-8%.
Usoro onunu ogwu nke admixtures abụghị uru a kapịrị ọnụ ma ọ dị mkpa ka a gbanwee ya n'ike dịka njirimara nke akụrụngwa, ụdị ọrụ na ọnọdụ gburugburu ebe obibi.

(1) Mmetụta nke ciment Njirimara The ịnweta mejupụtara, fineness na gypsum ụdị simenti kpọmkwem na-ekpebi admixture chọrọ. Simenti nwere nnukwu ọdịnaya C3A (> 8%) nwere ikike mgbasa ozi siri ike maka ndị na-ebelata mmiri ma ọ dị mkpa ka a na-amụba dose ahụ site na 10-20%. Maka 50m2 / kg ọ bụla na-abawanye na ciment kpọmkwem n'elu ala, mmiri na-ebelata dose kwesịrị ịbawanye site na 0.1-0.2% iji kpuchie nnukwu elu. Maka ciment na anhydrite (dihydrate gypsum ọdịnaya <50%), ọnụego mgbasa ozi na-ebelata mmiri na-adị ngwa ngwa ma enwere ike belata usoro onunu site na 5-10%, mana oge ngwakọta ahụ kwesịrị ịgbatị iji hụ na mgbasa otu.

(2) Mmetụta nke mineral admixtures The adsorption e ji mara nke ịnweta admixtures dị ka ofufe ash na slag ntụ ntụ ga-agbanwe irè itinye uche nke admixtures. Ikike mgbasa ozi nke klas m na-efe efe (mmiri chọrọ oke ≤ 95%) maka ndị na-ebelata mmiri bụ naanị 30-40% nke ciment. Mgbe ị na-edochi 20% nke ciment, enwere ike belata dose nke mmiri na-ebelata site na 5-10%. Mgbe kpọmkwem n'elu ebe slag ntụ ntụ dị ukwuu karịa 450m2 / kg, na admixture onunu ogwu kwesịrị ka-amụba site 5-8% mgbe dochie 40% nke ciment. Mgbe a na-agwakọta ntụ ntụ na ntụ ntụ na nha 1: 1 (ngụkọta ngbanwe ego 50%), enwere ike belata dose nke mmiri belata site na 3-5% ma e jiri ya tụnyere otu slag powder system n'ihi njirimara adsorption nke abụọ. N'ihi nnukwu ebe dị elu nke silica fume (> 15000m2 / kg), a ghaghị ịbawanye dose nke mmiri na-ebelata site na 0.2-0.3% maka 10% nke ciment dochie.

(3) Mmetụta nke mkpokọta akụrụngwa The apịtị ọdịnaya na urughuru size nkesa nke mkpokọta bụ ihe dị mkpa bases maka ịhazigharị usoro onunu ogwu. Maka 1% ọ bụla na-abawanye n'ime uzuzu uzuzu nke nkume (<0.075mm particles) n'ime ájá, mmiri na-ebelata mmiri kwesịrị ịbawanye site na 0.05-0.1%, n'ihi na nhazi nke porous nke ájá nkume ga-etinye aka na admixture. Mgbe ọdịnaya nke nchikota nke agịga na flake karịrị 15%, a ga-abawanye dose na-ebelata mmiri site na 10-15% iji hụ na encapsulation. Ịbawanye oke urughuru nke mkpokọta na-enweghị isi site na 20mm ruo 31.5mm na-ebelata oke efu, yana enwere ike ibelata usoro onunu site na 5-8%.