Method and apparatus for adjusting the quantity of liquid...

Details Method and apparatus for adjusting the quantity of liquid... Method and apparatus for adjusting the quantity of liquid...

C - Chemistry, Metallurgy

04

B

259/14, 261/60,

C04B 7/38 (2006.01) B28C 7/00 (2006.01) C04B 31/40 (1980.01)

Patent

CA 1168523

ABSTRACT OF THE DISCLOSURE A method and apparatus are provided herein for preparing hydraulic mortars or concretes. The method includes adding a quantity of water to fine aggregate particles, e.g., to sand particles, to in- crease their water content. A predetermined quantity of fine aggregate particles, e.g., such sand particles to which water has been added, are then sequentially supplied. An impact force is applied to such fine aggregate particles. e.g. such sand particles, either before or after the water has been added thereto, the force being stronger than the adhesive force of the water to such particles, thereby to remove excess water therefrom. A hydraulic substance, e.g. cement, is then mixed with the so-treated particles. The hydraulic mortar or concrete prepared from such particles has small segregation and bleeding, and products prepared therefrom have excellent mechanical strength.

349232

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