Ụbọchị nbipute:5,Mee,2022

Mgbe a na-agwakọta ciment na mmiri, n'ihi mmasị dị n'etiti ciment molecules, nkukota nke thermal ngagharị nke ciment irighiri ihe na ngwọta, ndị ọzọ ụgwọ nke simenti minerals n'oge hydration usoro, na ụfọdụ njikọ nke solvated mmiri. ihe nkiri mgbe a na-eme ka ihe ndị na-emepụta simenti hydrated. jikọtara ya, nke mere na slurry ciment na-etolite usoro flocculation. A na-ekpuchi nnukwu mmiri na-akpali akpali na nhazi nke flocculation, nke mere na elu nke cement cement enweghị ike iji mmiri na-ejikọta ya na mmiri, na-eme ka mmụba nke mmiri na-eri nri na ọdịda iji nweta ọrụ ihe owuwu a chọrọ.

Mgbe ịgbakwunye superplasticizer, ìgwè hydrophobic nke ebubo superplasticizer molecule na-directally adsorbed n'elu nke simenti irighiri, na hydrophilic otu na-arụtụ aka na mmiri ngwọta, na-eme ihe adsorption film n'elu nke simenti irighiri, nke mere na n'elu. nke simenti irighiri nwere otu ụgwọ. N'okpuru omume nke ọkụ ọkụ eletrik, a na-ekewapụ akụkụ ciment na ibe ya, na-agbajikwa usoro flocculation nke ciment slurry. N'otu aka ahụ, a na-ahapụ mmiri n'efu na nhazi nke flocculation nke ciment slurry, nke na-eme ka elu kọntaktị dị n'etiti ciment na mmiri, si otú ahụ na-amụba mmiri nke ngwakọta; Ọzọkwa, mwepu n'etiti ciment irighiri na-abawanye n'ihi na ndim nke ihe nkiri mmiri solvated kpụrụ n'elu nke simenti ahụ. Nke a bụ ụkpụrụ na ndị na-ebelata mmiri na-ebelata oriri mmiri n'ihi mgbasa ozi, mgbasa, wetting na mmanu mmanu.

Ụkpụrụ: Na nkenke, onye na-ebelata mmiri na-abụkarị ihe na-emepụta ihe na-adaba n'elu akụkụ ciment, na-eme ka ihe ndị ahụ na-egosipụta àgwà eletriki. Ihe ndị ahụ na-achụpụ ibe ha n'ihi otu ụgwọ eletrik, nke mere na akụkụ ciment na-agbasasị, na oke mmiri dị n'etiti ihe ndị ahụ na-ahapụ iji belata mmiri. N'aka nke ọzọ, mgbe agbakwunyere onye na-ebelata mmiri mmiri, a na-emepụta ihe nkiri adsorption n'elu akụkụ ciment, nke na-emetụta ọsọ hydration nke ciment, na-eme ka kristal kristal nke ciment slurry zuru oke, nhazi netwọk ahụ bụ ihe ọzọ. oke, ma na-eme ka ike na njupụta nhazi nke ciment slurry dịkwuo mma.

Mgbe slump nke ihe bụ isi otu, na admixture nke nwere ike ibelata mmiri oriri na-akpọ ihe mmiri reducer. A na-ekewa ndị na-ebelata mmiri n'ime mmiri nkịtị na-ebelata mmiri na-arụ ọrụ nke ọma na-ebelata mmiri. A na-akpọ ndị nwere mbelata mmiri na-erughị ma ọ bụ ha nhata 8% ndị na-ebelata mmiri nkịtị, ndị nwere mbelata mmiri karịa 8% ka a na-akpọ ndị na-ebelata mmiri dị elu. Dị ka mmetụta dị iche iche nke superplasticizers nwere ike isi mee ka ọ bụrụ ihe, a na-ekewa ha n'ime ihe ndị na-eme ka ike dị ike nke mbụ na ndị na-emepụta ihe na-eme ka ikuku.

Site n'iwebata ọrụ nke ịgbakwụnye ihe na-ebelata mmiri na-eme ka ọ bụrụ onye na-agwọ ọrịa, anyị nwere nghọta doro anya banyere nsogbu nke ịgbakwunye ihe na-ebelata mmiri na-ewu ihe na-eme ka ọ bụrụ ihe na-eme ka ọ bụrụ ihe na-edozi ahụ. N'okwu dị mfe, ọrụ nke onye na-ebelata mmiri na-arụ ọrụ bụ onye na-arụ ọrụ elu, nke nwere ike ime ka akụkụ ciment na-eweta otu electrode ahụ, ma hapụ mmiri dị n'etiti ihe ndị ahụ site na njirimara anụ ahụ nke otu ihe mgbapụta ahụ, si otú ahụ belata mmiri.