1. Mgbe ọdịnaya simenti bụ otu ihe ahụ na slump yiri nke enweghị oghere, enwere ike belata oriri mmiri site na 10-15%, ike ụbọchị 28 nwere ike ịbawanye site na 10-20%, na otu afọ. ike nwere ike ịbawanye site na 10%.
2. Ịchekwa ciment Mgbe ike na slump nke ihe yiri nke ahụ, ihe dị ka 10% nke ciment nwere ike ịzọpụta, na 30-40 tọn cement nwere ike ịzọpụta site na iji 1 ton nke na-ebelata mmiri.
3. Mee ka ọrụ nke ihe na-arụ ọrụ dịkwuo mma Mgbe ọdịnaya ciment na oriri mmiri nke ihe na-anọgide na-agbanwe agbanwe, nkwụsị nke obere plastik nwere ike ịbawanye ihe dị ka ugboro abụọ (site na 3-5 cm ruo 8-18 cm), na ike mbụ bụ. ihu ọma nso na nke unmixed konkret.
4. Mgbe agbakwunyere 0,25% lignocelcium superplasticizer na retarding mmetụta, mgbe slump nke ihe bụ otu ihe ahụ, mmalite ntọala oge nke nkịtị ciment na-egbu oge maka 1-2 awa, slag ciment bụ 2-4 awa, ikpeazụ ntọala oge. ciment nkịtị bụ awa 2, na simenti slag bụ awa 2-3. Ọ bụrụ na slump na-abawanye na-enweghị ibelata oriri mmiri, ma ọ bụ na-echekwa otu slump ahụ iji chekwaa ciment oriri, oge nhazi oge igbu oge dị ukwuu karịa nke mbelata mmiri.
5. Ọ nwere ike ibelata omume oge nke exothermic elu nke mmalite hydration okpomọkụ nke ciment, nke bụ banyere 3 awa nkịtị ciment, banyere 8 awa slag ciment, na ihe karịrị 11 awa maka dam ciment. Okpomọkụ kachasị elu nke elu exothermic dị ntakịrị ala maka ciment nkịtị, yana ihe na-erughị 3 ℃ maka ciment ciment na dam ciment.
6. A na-abawanye ọdịnaya ikuku nke ihe. Ihe dị n'ime ikuku nke ihe na-adịghị ọcha bụ ihe dịka 1%, na ikuku nke ihe a gwakọtara na 0.25% calcium osisi bụ ihe dịka 2.3%.
7. Mbelata ọbara ọgbụgba n'okpuru ọnọdụ na slump nke ihe bụ isi otu, ọnụ ọgụgụ ọbara ọgbụgba nkecalcium lignosulphonatenwere ike belata ihe karịrị 30% tụnyere nke ihe na-enweghịcalcium lignosulphonate. N'okpuru ọnọdụ nke mmiri-ciment ratio na-anọgide na-agbanweghi agbanwe na slump na-abawanye, ọbara ọgbụgba na-ebelata n'ihi na hydrophilic ihe onwunwe nke.calcium lignosulphonatena iwebata ikuku.
8. Tụnyere ndị na-enweghị mmiri na-ebelata gị n'ụlọnga, na akọrọ shrinkage arụmọrụ bụ ihu ọma nso ma ọ bụ ubé ibelata na mbụ ogbo (1-7) ụbọchị, na ubé mụbara na mgbe e mesịrị ogbo (ma e wezụga ndị na-azọpụta ciment), ma mmụba uru abụghị karịa 0.01% (0.01mm / m).
9. Melite compactness na impermeability nke ihe. Site na B=6 ruo B=12-30.
10. O nweghị chlorine nnu na ọ dịghị corrosion ize ndụ na mkwado.
Oge nzipu: Mee-16-2023
