Concrete mmiri mbenata gị n'ụlọnga bụ otu n'ime teknuzu ụzọ belata ciment onunu ogwu, melite itinye n'ọrụ ọnụego nke ulo oru mkpofu fọdụrụnụ, na-aghọta anwụ ngwa ngwa na elu arụmọrụ nke ihe.Ọ bụkwa otu n'ime ihe ndị bụ isi maka ịmepụta ihe na-emepụta ihe na ubi teknụzụ dị elu.Na polycarboxylate ụdị mmiri na-ebelata mmiri (PC) abụrụla ụdị onye na-ebelata mmiri na-arụ ọrụ nke ọma nke nwere mmepe ngwa ngwa yana ikike ahịa kachasị ukwuu n'ihi obere nsi ya na njirimara nchekwa gburugburu ebe obibi.E jiri ya tụnyere omenala admixtures, admixtures aghọwo ihe a na-elekwasị anya na nyocha na mmepe zuru ụwa ọnụ n'ihi na ha na-ekesa nke ọma na ikike njigide slump.
Ọ bụ ezie na polycarboxylate mmiri na-ebelata admixture pụtara ìhè arụmọrụ na ike ịnọgide na-enwe ezi slump ka a ghọtara nke ọma, ma n'ihi ịdị adị nke ịnweta mejupụtara, ciment fineness, ciment plaster ụdị na ọdịnaya, admixture na-agbakwụnye ego, na ịgwakọta usoro nke ihe ngwakọta ratio, mmiri. nwere nnọọ elu uche, kpọrọ ihe na-emetụta ndị dị na ngwaahịa na ọtụtụ-eji na engineering.
Kedu ihe bụ Polycarboxylate Series na-ebelata mmiri?
Polycarboxylate superplasticizer bụ ụdị surfactant nwere carboxylic graft copolymer.Ụmụ irighiri ihe ya nwere ọdịdị mbo ma nwee mmetụta mgbochi siri ike.Dị ka ọgbọ nke atọ nke elu-arụmọrụ mmiri mbenata gị n'ụlọnga mgbe lignosulfonate nkịtị mmiri mbenata gị n'ụlọnga, naphthalene usoro aliphatic otu, sulfate na ndị ọzọ elu-arụmọrụ mmiri mbenata gị n'ụlọnga.
Ọ bụ n'ihi molekụla Ọdịdị imewe arụmọrụ dị mma, elu belata mmiri, ala admixture ego, na-slump ọma, welie mma, nwere alkali ego dị ala, ịtọ oge mmetụta bụ obere, na ọtụtụ ciment ndakọrịta dị mma na mmetọ-free na A na-ahụta uru ndị ọzọ dị ka ikike mmepe kachasị nke na-ebelata mmiri dị iche iche.
Polycarboxylate superplasticizer bụ ihe ọhụrụ na-arụ ọrụ nke ọma superplasticizer mepụtara ma mepụta nke ọma mgbe naphthalene, melamine, aliphatic na sulfate superplasticizer gasịrị.N'ime ọdịnaya ya dị ala (ọdịnaya siri ike 0.15% - 0.25%) nwere ike ịmepụta mmiri dị mma na-ebelata ma na-eme ka ọ dịkwuo mma, obere mmetụta na nhazi oge nke ihe na nkwụsịtụ slump, mgbanwe na ciment na admixture dị mma, mmetụta dị nta na ihicha. shrinkage nke ihe (na-emekarị ọ bụghị nke ukwuu na-abawanye ihicha shrinkage), na-enweghị iji formaldehyde na usoro nke mmepụta na-adịghị na-ahapụ ihe n'efu mmanya, SO Obere ọdịnaya nke 42- na Cl- e toro site na-eme nnyocha na ụfọdụ ndị ọrụ kemgbe. mmalite.
Kedu ihe kpatara eji gbanwee Polycarboxylate Superplasticizer?
Tụnyere naphthalene usoro elu oru oma mmiri mbenata gị n'ụlọnga, dị ka, ọ bụ ezie na poly carboxylic mmiri mbenata gị n'ụlọnga na Mbelata mmiri nchekwa slump nwere doro anya uru na akụkụ nke gburugburu ebe obibi nchebe, ma e nwere ụfọdụ teknuzu nsogbu na bara uru engineering ngwa, dị ka. mmiri mbenata mmetụta nke ihe akụrụngwa, Ịgwakọta ruru, mmiri mbenata gị n'ụlọnga usoro onunu ogwu dabere bụ nnọọ nnukwu, ọhụrụ ihe arụmọrụ na-enwe mmetụta nke mmiri oriri, mfe nkwadebe nke nnukwu liquidity segregation oyi akwa.Nkwekọrịta na-adịghị mma na ihe ndị ọzọ na-ebelata mmiri na ihe ndị gbanwere na nkwụsi ike ngwaahịa adịghị mma na-egbochi nnukwu ngwa na mmepe nke ndị na-ebelata mmiri polycarboxylate.
Iji merie teknuzu ntụpọ na ngwa nke polycarboxylate mmiri na-ebelata ihe, ma ọ bụ melite ụfọdụ ma ọ bụ ụfọdụ Njirimara (workability, slump njide, Mbelata nke ọbara ọgbụgba, mma nke mmalite ike, ala shrinkage, wdg), ọ bụ. dị mkpa iji gbanwee ihe ahụ.
Na omume, ụzọ mgbanwe ndị a na-ejikarị gụnyere teknụzụ sịntetik na teknụzụ ngwakọta.N'iji ya tụnyere usoro mmepụta ihe, usoro ntinye nwere uru nke ọrụ dị mfe na ọnụ ala dị ala, n'ihi ya, a na-eji ya eme ihe na ngwa ngwa.Polycarboxylate usoro ihe teknụzụ, bụ polycarboxylate usoro na-ebelata mmiri na ihe ndị ọzọ (dị ka coagulation ngwa ngwa, defoamy, induction ikuku, ike mmalite na ihe ndị ọzọ) dị ka akụkụ ụfọdụ nke ngwakọta ngwakọta, iji nweta nhazi superposition nke ọ bụla akụrụngwa.
Oge nzipu: Jul-01-2022