| abstract |
A dry cement mortar comprising an aggregate having a ratio of a maximum particle diameter to an inner diameter of a pipe for conveying cement mortar of 0.1 or less and cement. Dry cement mortar may further contain calcium aluminate, gypsum, lime-containing material, organic acids, fibers, thickeners, sensitizers, absorbent materials, alkali metal sulphates and or alkali metal carbonates. The rapid curing agent may be mixed with the wet cement mortar obtained by mixing the dry cement mortar with water.n n n Dry cement mortar can be used to provide a spray material capable of minimizing operational troubles due to long-term use of the material and maintaining a uniform mixing state of the materials. |