MANUFACTURE OF PARTICLE-LIKE ICE AND DRIED STATE INCLUSION WATER FOR MANUFACTURING OF CONCRETE/MORTAR, MANUFACTURE OF CONCRETE/MORTAR USING THOSE FINE PARTICLE-LIKE ICE AND DRIED STATE INCLUSION WATER AND CONCRETE/MORTAR PRODUCT MANUFACTURED THROUGH THE SAME MANUFACTURING PROCESS OF CONCRETE/MORTAR

摘要

PURPOSE:To manufacture easily concrete/mortar with a small water quantity, by a method wherein either particle-like ice obtained by impregnating water into water absorbing polymer keeping an independent particle-like state by including the water within structure under a water absorbing state and freezing the same or dried state inclusion water obtained as the polymer is impregnated with the water is used for cement mixing. CONSTITUTION:A water absorbing polymer is obtained by a method wherein an acrylic copolymer is dissolved into aliphatic hydrocarbon, reverse phase suspension polymerization is performed by dispersing acrylic acid and its alkalic metallic salt's aqueous solution and they are dried further by crosslinking the same with a crosslinking agent under existence or nonexistence of an inorganic substance. Particle-like ice for manufacturing of concrete/ mortar can be manufactured easily when the necessary quantity of water is absorbed into the water absorbing polymer and the same is frozen under a state where an independent particle-like state is kept on. A quantity of absorbing water is possible up to capacity of water absorption of the polymer. It is preferable that the quantity of absorbing water is not exceeding half the quantity of the capacity of the water absorption of the polymer to keep an independent particle-like state, in dried state inclusion water for the manufacturing of the concrete/mortar. Powder mixture of the particle-like ice and dried state inclusion water to cement and aggregate is performed by making use of them, water is discharged outside through a molding method such as pressurization or extrusion, hydration reaction with the surrounding cement is generated and the concrete/mortar is manufactured.