With concrete wire sawing, a wire with diamond beads attached is used to cut through the material. The wire used for cutting is a flexible and high-tensile steel cable coated with diamond beads. The diamond beads are abrasive and can cut through the hardest materials. The wire sawing process involves running the wire back and forth through the material to be cut. The wire is looped around the object to be cut, and then the wire is pulled back and forth using a machine that controls the tension of the wire. The process is repeated until the entire object is cut. The whole system is fed water to keep the wire lubricated and from overheating due to extreme friction. This method is often employed when traditional sawing methods, such as circular blade sawing, are not practical due to the size of the concrete structure or the presence of steel reinforcements.
Concrete wire sawing is particularly useful for cutting through large, thick sections of concrete, such as bridges, dams, and other massive structures where traditional sawing methods would be impractical. It allows for precision cutting and can create openings of various shapes and sizes in concrete structures. This method is commonly employed in construction, demolition, and renovation projects where precise and controlled cutting is required. Some common uses of concrete wire sawing in the field include:
- Concrete Demolition: When demolishing large concrete structures, such as bridges, towers, or industrial facilities, concrete wire sawing can be used to cut the concrete into manageable sections for removal.
- Renovation and Modification: In renovation projects, concrete wire sawing can create openings for doors, windows, or staircases in existing concrete structures without causing excessive damage to the surrounding areas.
- Concrete Removal: When sections of concrete need to be removed from a structure without damaging the surrounding areas, wire sawing is used to cut through the concrete precisely and cleanly.
- Structural Alterations: Concrete wire sawing allows for precise modifications to the shape and size of existing concrete structures, enabling alterations or additions to be made without compromising the structural integrity of the building.
- Extraction of Large Concrete Structures: In some cases, large concrete structures, such as pillars or beams, need to be removed intact. Concrete wire sawing can cut these structures into manageable pieces for safe extraction.
- Cutting Reinforced Concrete: The diamond-coated wire used in wire sawing can easily cut through heavily reinforced concrete, making it an ideal method for cutting through structures with dense steel reinforcement.