Application and Research Status of Diamond Tools on the Repair and Reconstruction of Reinforced Concrete Structure

Abstract:

Nowadays, building new reinforced concrete structures, repairing or reconstructing old structures are both important in China. To demolish and reconstruct a whole (or part of) reinforced concrete structure, conventional methods of mechanical disruption and blasting demolition have disadvantages of low construction efficiency, big potential security risk and serious environmental pollution. However, the construction method of static cutting demolition by employing diamond tools has developed rapidly in recent years. The most commonly used diamond tools include thin-wall diamond core bit, diamond saw blade and diamond wire saw. The application status, drilling and sawing mechanisms, manufacture technologies, as well as the construction parameters of the above mentioned 3 kinds of diamond tools employed in repair and reconstruction of steel concrete structure are summarized and analyzed in this paper, on the basis of this, the possible research trends and development directions are obtained. The research findings can provide technical reference value for wide application of diamond tools in civil engineering and some special fields.