Strength of concrete reinforced using double-blade mixer

Abstract

In order to reinforce the strength of concrete, a new mixing principle by double-blade mixer is proposed and investigated. A double-blade mixer, based on an ordinary biaxial mixer, is designed and fabricated, and its mixing performances are investigated. Compared with the motion of the ordinary biaxial mixer, the double-blade mixer strengthens the radial motion of the mixture, which achieves synthesis of the circumferential forces, the axial forces and the radial forces. Compared with an ordinary biaxial mixer, in the same mixing time the strength of concrete obtained by double-blade mixer is increased by 16%. Also for the same strength of concrete using a double-blade mixer shortens the mixing time by 50% compared with that of an ordinary biaxial mixer. Moreover, when the amount of cement is reduced by 20%, the strength of concrete is increased by 17%. The experimental results prove that the double-blade mixer has obvious advantages for enhancing the strength of concrete, saving mixing time and achieving uniform mixing rapidly. Therefore, a double-blade mixer can reinforce the strength of concrete, and could be widely used in construction projects.