Ihe mgbakwunye ihe dị fechaa | Ndị na-ahụ maka ụfụfụ na-arụ ọrụ dị elu maka ihe nhịahụ cellular
N'ime iri afọ ole na ole gara aga, ndị nchọpụta na-anwa ịgbasawanye isi mmalite nke polycarboxylic acid superplasticizers ma welie ike ịgbasa ha. Admixtures ndị a abụghị naanị na ọ dị irè na mbelata oriri mmiri mana ha nwekwara mmetụta retarding dị mma na hydration ciment ma bụrụ ndị mara mma maka ngwa ngwa ihe dị elu..
N'ime ọmụmụ ihe a, A na-amụ ihe rheological nke Fubelite sulfoaluminate ciment jikọtara ya na admixtures dị iche iche na-arụ ọrụ site na iji Viskomat XL rheometer. (Schleibinger). Nsonaazụ gosiri na mgbakwunye na nke polycarboxylic acid superplasticizers budata mma rheology nke ihe; tụnyere oghere oghere, sample 2 nwere polycarboxylic acid na-arụ ọrụ ike n'oge na-arụ ọrụ dị elu na-ebelata mmiri Z na-egosi oke mmiri dị elu na viscosity rọba dị ala.. Ọzọkwa, nrụgide shis nke samples ji nwayọọ nwayọọ na-ebelata site n'ịba ụba dose nke mbelata mmiri admixture, nke na-egosipụta mmetụta retarding dị irè nke admixture a na mmeghachi omume hydration ciment.
Mmetụta nkwụghachi azụ nke onye na-ebelata mmiri nke polycarboxylic acid bụ n'ihi nhazi molekụla ya, nke mejupụtara ether na carboxyl iche iche nke na-adaba n'elu akụkụ ciment. Ọrụ ndị a na-egbochi hydration nke ụmụ irighiri mmiri site na ichebe mkpụrụ ndụ ciment, ya mere usoro hydration na-egbu oge nke ukwuu2.
Ihe mgbochi siri ike nke polycarboxylic acid na-arụ ọrụ dị elu nwere ike ịrụ ọrụ dị mkpa na nke a., ebe ọ bụ na ụdọ ogologo akụkụ nke admixtures ndị a na-abanye na ngwọta pore ma na-emepụta mmetụta mgbochi siri ike.. N'iji ya tụnyere, Ihe na-ebelata mmiri nke naphthalene nwere naanị otu sulfonic acid nwere eriri akụkụ dị mkpụmkpụ yana mmetụta mgbochi siri ike na-esighị ike., nke na-enweghịkwa ike igbochi hydration nke mmiri.