abstract |
The present invention relates to a cement composition comprising cement, 10 to 40 parts by weight of a slag based mixed material based on 100 parts by weight of the cement, and 0.1 to 5 parts by weight of Na 2 CO 3 based on 100 parts by weight of the slag based mixed material, A cementitious mortar composition, a cementitious concrete composition and a lightweight concrete composition using the cementitious mortar composition, the cementitious mortar composition, and the lightweight concrete composition. According to the present invention, it is possible to use ferronickel slag, which is an industrial waste, by replacing part of cement. Therefore, the ferronickel slag, which is a waste, can be recycled, and thus the burden cost and the like can be reduced. great. |