Concrete admixtures

Chloride ion bụ ihe na-emerụ ahụ na simenti na simenti akụrụngwa.Ọ nwere mmetụta kpọmkwem na preheater na kiln calcination na ọhụrụ akọrọ usoro ciment mmepụta, na-akpata ihe mberede dị ka mgbanaka guzobe na plugging, na-emetụta ngwá ọrụ ọnụego na ciment clinker quality. N'otu oge ahụ, mgbe chloride ion ọdịnaya na ciment karịrị a. ụfọdụ uru, ọ ga-corrode ígwè mmanya na ihe, ibelata ike nke ígwè mmanya, nwekwara ike ime ka ihe mmebi kpatara mgbasawanye, na mgbe ọ dị njọ, ọ ga-eme ka ihe cracking na lie zoro ezo ize ndụ na àgwà nke oru ngo, otú. A ghaghị ịchịkwa ya nke ọma. A na-agbakwunye ihe achọrọ maka njedebe ion chloride na isiokwu 7.1 nke GB 175-2007 cement Portland Common.

Ihe a chọrọ bụ na ọdịnaya chloride dị na simenti adịghị elu karịa 0.06% Ammonium thiocyanate volumetric method, potentiometric titration method na ion chromatography na-ejikarị eme ihe maka ikpebi ion chloride.Otú ọ dị, n'ihi na nkwụsi ike nke ọlaọcha chloride adịghị mma, Ọdịdị nke ọlaọcha (chlorine) electrode bụ ejighị n'aka, na gburugburu ebe obibi mmetụta dị ukwuu, ha na-eme na-adịghị mma repeatability na adabara nchọpụta nke bekee na elu chloride ọdịnaya.Ion chromatography. dị ka usoro ahọrọ maka nchọpụta nke ihe ionic, enwere ike iji nyochaa otutu ion n'otu oge na otu injection, ma nwee njirimara nke ngwa ngwa na nke ziri ezi.

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N'ime akwụkwọ a, a na-eji ion chromatography nyochaa na nwalee ihe mgbakwunye ihe na ion chloride na ciment.


Oge nzipu: Eprel-18-2023