N'ihe dị ka afọ 1940.waya ntupu cimentmalitere iji ya na ụlọ ọrụ mmepụta ụgbọ mmiri.Ka ọ dị ugbu a, a na-eji ya ọ bụghị nanị maka ịrụ ụgbọ mmiri, kamakwa ọtụtụ nchegbu.A maara nke ọma na free calcium oxide na ciment clinker na-emetụta nkwụsi ike, n'ihi na free calcium oxide amalite hydrate mgbe ciment hardening, olu nke mmiri ijeri ngwaahịa (calcium hydroxide) na-abawanye 1.5 ~ 2.0 ugboro, nke mere na simenti na-eme ka ahụ sie ike, na-eme ka ciment kwụsie ike.
Ya mere, ọ nwere ike na-atụle na ọ bụrụ free calcium oxide na ciment hardening n'ọdịnihu enweghị hydration, mgbe ahụ ọ gaghị eme ka nsogbu nke ogbenye ciment kwụsie ike.Ihe data dị mkpa na-egosi na mmetụta nke calcium oxide n'efu na ash kiln na nkwụsi ike dị nnọọ ọkụ karịa nke free calcium oxide na clinker.Enwere ike ịhụ na ọnụego hydration nke ụdị abụọ nke calcium oxide efu dị iche.Ọnụọgụ hydration nke calcium oxide n'efu na ash kiln dị ngwa ngwa.Otu n'ime ihe kpatara ya bụ na ikpo ọkụ ọkụ nke ọkụ ọkụ dị ala karịa nke clinker na ash ash dị na ọkụ ọkụ ọkụ.Calcium oxide na-ere ọkụ na-adị mfe ịsa mmiri karịa nke calcium oxide dị elu nke okpomọkụ.
Ihe mkpuchi ahụ dị obere na ọnọdụ ikechi ya.Ọdịnaya nke free calcium oxide na kiln ash dị elu, ọ dịkwa mfe hydrate iji mepụta calcium hydroxide na obere ike ndọda, nke na-emetụtakwa mmetụta ọdịda ya na mmiri na-ekesa.Ejiri ya na injinia ụlọ, injinia hydraulic, ihe owuwu nke ngwaahịa na ntupu waya bụ ~ nke mejupụtara ciment ntupu igwe, ọ bụ ihe na-emesi ike, nkesa edo na ihe kenkuwa (ngwa ngwa ciment), Taiwan ya na ngwa ngwa ciment. , ike mgbe nkwonkwo deformation, na li mmetụta onye ọ bụla ọzọ, na-enye zuru play ka e ji mara nke mejupụtara ihe, ọtụtụ iche iche nke composites na magburu onwe Njirimara na-guzobere.
Oge nzipu: 30-07-21