Ntuba arịlịka
Ihe: carbon ígwè& igwe anaghị agba nchara.
Mgbasawanye zuru oke na plọg arụnyere arụnyere nke ọma na-eme ka mgbaba nke arịlịka zuru oke.
E nwetara ụkpụrụ ule ndị edepụtara n'okpuru site na iji 200-250kgs/cmconcrete (enweghị mkpokọta).
Ibu ọrụ dị mma ekwesịghị ịfe 25% nke ọnụ ahịa ekwuru.
Dee ozi gị ebe a ziga anyị ya