Ngwa Ngwa na-ebelata mmiri na-arụ ọrụ dị elu

1. Nhazi nke Molecular Structure

A na-ahọrọ onye na-ebelata mmiri nke polycarboxylate nwere njupụta yinye akụkụ nke ≥1.2 kwa nm². Mmetụta mgbochi ya siri ike nwere ike ibelata mmebi nke oyi akwa adsorption nke okpomọkụ dị elu kpatara. Mgbe agbakwunyere na a 30% ofufe ash admixture, mmiri mbelata ọnụego nwere ike iru 35%-40%, na a otu awa slump ọnwụ nke na-erughị 10%. Nke a elu-n'akụkụ yinye njupụta polycarboxylate mmiri na-ebelata ihe n'ụlọnga na-etolite a oké adsorption oyi akwa n'elu nke ciment irighiri, na-enye ike stereic asị, ikwe ka simenti irighiri ịnọgide na-enwe a ọma gbasasịrị ala ọbụna na elu okpomọkụ gburugburu. Ọzọkwa, mgbakwunye nke uyi ofufe ọ bụghị naanị na-ebelata ojiji ciment ma na-ebelata okpomọkụ nke hydration, kamakwa na-emepụta mmetụta synergistic na onye na-ebelata mmiri, na-eme ka ọrụ na ịdịte aka nke ihe dị mma.

2. Nkà na ụzụ na-echekwa slumpIwebata methyl allyl polyoxyethylene ether monomer na-emepụta usoro netwọk nwere akụkụ atọ. N'ebe a na-eme ka ọ dị na 50 Celsius C, jikọtara ya na ihe na-emeghachi azụ, enwere ike idowe mgbasawanye ihe n'elu 650mm maka nkeji 120, na-emezu ihe mgbapụta chọrọ nke ụlọ elu dị elu. Iwebata methyl allyl polyoxyethylene ether monomers na-agbanwe usoro ihe omimi nke polycarboxylate superplasticizer, na-eme usoro netwọkụ nwere akụkụ atọ nke na-eme ka ikike ya nwee ike ikpuchi ma gbasasịa akụkụ ciment. Na gburugburu okpomọkụ dị elu, ihe owuwu a na-eguzogide nnyonye anya sitere na ngwaahịa hydration ciment, na-ejigide mmiri na slump nke ihe. Mgbe ejiri ya na ihe ndị na-eweghachi azụ azụ, ọ nwere ike igbu oge mmiri ciment n'otu oge ma nọgide na-enwe nkụda mmụọ, na-egbo mkpa nke ihe owuwu dị elu, dị ka n'ịgbapụta mmiri dị elu.