Ụbọchị nbipute: 26, Ọgọst, 2024
1. Mineral mejupụtara
Isi ihe bụ ọdịnaya nke C3A na C4AF. Ọ bụrụ na ọdịnaya nke ihe ndị a dị ntakịrị, ndakọrịta nke ciment na onye na-ebelata mmiri ga-adị mma, n'ime nke C3A nwere mmetụta siri ike na mgbanwe. Nke a bụ n'ihi na ndị na-ebelata mmiri na-ebu ụzọ adsorbs C3A na C4AF. Tụkwasị na nke ahụ, ọnụ ọgụgụ hydration nke C3A dị ike karịa nke C4AF, ọ na-abawanye na mmụba nke ciment dị mma. Ọ bụrụ na ihe ndị ọzọ C3A dị na ciment, ọ ga-eduga ozugbo na obere mmiri mmiri gbazere na sulfate, na-ebute mbelata nke ion sulfate na-emepụta.
2. Ịdị mma
Ọ bụrụ na ciment dị mma karị, ebe dị n'elu ya ga-adị ntakịrị, na mmetụta flocculation ga-apụta ìhè karị. Iji zere ihe owuwu a na-agbagharị agbagharị, ọ dị mkpa ka etinyere ya ụfọdụ ihe na-ebelata mmiri. Iji nweta mmetụta na-asọpụta zuru oke, ọ dị mkpa ịbawanye ojiji nke mmiri na-ebelata ruo n'ókè ụfọdụ. N'okpuru ọnọdụ nkịtị, ọ bụrụ na ciment dị mma karị, ebe a kapịrị ọnụ nke ciment dị elu, na mmetụta nke onye na-ebelata mmiri na-abawanye ụba nke ciment, na-eme ka o sie ike iji hụ na mmiri nke ciment mado. Ya mere, n'ime usoro nhazi n'ezie nke nhazi ihe na oke mmiri-ciment dị elu, ekwesịrị iji nlezianya chịkwaa oke mmiri na mpaghara iji hụ na ciment na ndị na-ebelata mmiri nwere ike ime mgbanwe.
3. Grading nke ciment irighiri
Mmetụta nke ciment urughuru grading na ciment adaptability bụ tumadi egosipụta na ihe dị iche na ọdịnaya nke ezi ntụ ntụ na ciment ahụ, karịsịa ọdịnaya nke irighiri ihe na-erughị 3 microns, nke nwere kasị kpọmkwem mmetụta na adsorption nke mmiri reducers. Ọdịnaya nke ụmụ irighiri ihe na-erughị 3 microns na ciment dịgasị iche iche na ndị na-emepụta ciment dị iche iche, a na-ekesakwa ya n'etiti 8-18%. Mgbe ejiri usoro igwe igwe na-emepe emepe, ebe a kapịrị ọnụ nke ciment na-emeziwanye nke ọma, nke na-enwe mmetụta kachasị na ngbanwe nke ciment na ndị na-ebelata mmiri.
4. Roundness nke ciment irighiri
Enwere ọtụtụ ụzọ iji meziwanye gburugburu ciment. N'oge gara aga, a na-akụtu irighiri simenti ka ọ ghara ịta n'ọnụ na nkuku. Otú ọ dị, n'ime usoro ọrụ n'ezie, ọnụ ọgụgụ buru ibu nke ezigbo ntụ ntụ na-adịkarị mfe ịpụta, nke nwere mmetụta kpọmkwem na arụmọrụ nke ciment. Iji dozie nsogbu a nke ọma, enwere ike iji teknụzụ na-egweri bọọlụ gburugburu, nke nwere ike imeziwanye spheroidization nke simenti irighiri ihe, belata mfu ọrụ, ma belata oge igwe ciment. Mgbe gburugburu nke ciment irighiri na-mma, ọ bụ ezie na mmetụta na jupụta onunu ogwu nke mmiri reducer bụghị nnọọ nnukwu, ọ nwere ike melite mmalite fluidity nke ciment mado ruo n'ókè dị ukwuu. Ihe omume a ga-apụta ìhè karịa mgbe ọnụọgụ mmiri na-ebelata mmiri ejiri dị ntakịrị. Tụkwasị na nke ahụ, mgbe emeziwanye gburugburu nke cement ciment, a pụkwara imeziwanye mmiri nke cement ciment ruo n'ókè ụfọdụ.
5. Ngwakọta agwakọta
N'ihe eji ciment ugbu a na mba m, a na-ejikọta ihe ndị ọzọ ọnụ. Ndị a agwakọta ihe na-emekarị na-agụnye mgbawa ọkụ slag, ofufe ash, coal gangue, zeolite ntụ ntụ, nzu, wdg Mgbe a otutu omume, ọ na-kweere na ọ bụrụ na mmiri reducer na ofufe ash na-eji dị ka agwakọta ihe, dịtụ mma ciment adaptability nwere ike. nweta. Ọ bụrụ na a na-eji ntụ mgbawa ugwu na coal gangue mee ihe dị ka ihe agwakọta, ọ na-esiri ike ịnweta ezigbo ngwakọta ngwakọta. Iji nweta mmetụta mbelata mmiri ka mma, a na-achọkwu ndị na-ebelata mmiri. Ọ bụrụ na a na-etinye ntụ ijiji ma ọ bụ zeolite n'ime ihe agwakọtara, mfu na mgbanye ọkụ na-emetụtakarị ịdị mma nke ntụ mgbawa ugwu. Ka obere mfu na mgbanye, ka a na-achọkwu mmiri, na ihe dị elu nke ash mgbawa ugwu. Mgbe ọtụtụ omume gasịrị, egosipụtara na ngbanwe nke ihe ndị a gwakọtara na ciment na onye na-ebelata mmiri na-egosipụtakarị na akụkụ ndị a: ngbanwe ọnụego na-abawanye. ② Ọ bụrụ na a na-eji uyi ofufe ozugbo dochie ciment tapawa, mmiri mbụ ya nwere ike ibelata nke ukwuu mgbe ihe nnọchi anya gafere 30%. ③ Ọ bụrụ na ejiri zeolite mee ihe ozugbo iji dochie ciment, ọ dị mfe ime ka ezughị oke mbido mbụ nke mado. N'okpuru ọnọdụ nkịtị, na-abawanye nke ntanye ngbanwe nke slag, a ga-eme ka njigide na-agbapụta nke ciment mado. Mgbe uyi ofufe na-abawanye, ọnụego mfu nke mado ga-abawanye ruo n'ókè ụfọdụ. Mgbe ọnụego nnọchi zeolite gafere 15%, mfu nke mado ga-apụta ìhè.
6. Mmetụta nke admixture ụdị na fluidity nke ciment mado
Site n'ịgbakwụnye ụfọdụ nke admixtures na ihe, ìgwè hydrophobic nke admixtures ga-abụ ntụziaka ntụziaka n'elu akụkụ ciment, na ìgwè hydrophilic ga-arụtụ aka na ngwọta ahụ, si otú ahụ na-emepụta ihe nkiri adsorption nke ọma. N'ihi mmetụta mgbasa ozi ntụziaka nke admixture, elu nke cement cement ga-enwe ụgwọ nke otu ihe ịrịba ama. N'okpuru mmetụta nke dị ka ebubo na-agbagha ibe ha, ciment ga-etolite mgbasa nke flocculent Ọdịdị na mbido mbụ nke mgbakwunye mmiri, nke mere na flocculent Ọdịdị nwere ike ịtọhapụ na mmiri, si otú ahụ na-eme ka fluidity nke mmiri ahụ na ụfọdụ. oke. Tụnyere admixtures ndị ọzọ, akụkụ bụ isi nke polyhydroxy acid admixtures bụ na ha nwere ike ịmepụta otu nwere mmetụta dị iche iche na agbụ isi. Na mkpokọta, ihe mgbakwunye hydroxy acid na-enwe mmetụta dị ukwuu na mmiri simenti. N'ime usoro nkwadebe nke ihe siri ike dị elu, ịtinye akụkụ ụfọdụ nke polyhydroxy acid admixtures nwere ike nweta mmetụta nkwadebe ka mma. Otú ọ dị, na usoro nke iji polyhydroxy acid admixtures, ọ nwere dịtụ elu chọrọ na arụmọrụ nke ciment akụrụngwa. N'iji ya eme ihe n'ezie, ngwakọta na-adịkarị mfe na viscosity ma na-arapara na ala. Na n'ikpeazụ eji ụlọ ahụ eme ihe, ọ na-enwekwa ike ịnweta mmiri mmiri na stratification. Mgbe a kwatuchara, ọ na-adịkarịkwa ka ọ dị njọ, ahịrị aja na oghere ikuku. Nke a na-emetụta kpọmkwem na enweghị nkwekọrịta nke polyhydroxy acid admixtures na ciment na mineral admixtures. Polyhydroxy acid admixtures bụ admixtures nwere mmeghari kacha njọ na ciment n'etiti ụdị ọ bụla nke admixtures.
Oge nzipu: Ọgọst-26-2024
