Concrete slab attachment device and method

A method for attaching two adjacent first and second concrete pieces to one another along corresponding first and second interfacing side surfaces thereof with an attachment device connecting to both the first and second concrete pieces, said first and second concrete pieces having first and second recesses formed therein respectively, said first and second concrete pieces having first and second bore holes respectively extending there through adjacent the corresponding interfacing side surface and connecting with the first and second recesses respectively, said attachment device having an elongate base member and first and second lateral members extending respectively at first and second ends thereof and substantially perpendicularly therefrom, said method comprising the steps of:

• placing the first and second interfacing side surfaces in general abutment contact with each other, with the first and second recesses in alignment with one another;
• positioning the attachment device across the first and second concrete pieces with the elongate base member extending into the first and second recesses and with the first and second lateral members extending through said first and second bore holes of said first and second concrete pieces, respectively;
• and
• filling at least said first and second bore holes of the first and second concrete pieces around the first and second lateral members, and an interstice between the first and second interfacing side surfaces with concrete.

A concrete piece attachment arrangement comprising:

• first and second concrete pieces positioned adjacent one another along corresponding first and second interfacing side surfaces thereof, the first and second concrete pieces having first and second recesses respectively formed therein and extending inwardly from a respective one of the first and second interfacing side surfaces, the first and second concrete pieces having first and second bore holes extending therethrough, respectively, and connecting with the first and second recesses, respectively;
• and
• an attachment device for attaching the first and second concrete pieces to one another along the corresponding first and second interfacing side surfaces, said attachment device including:
• an elongate base member having opposed first and second portions opposed to one another, the first and second portions extending within the first and second recesses respectively, in a direction generally perpendicular to the first and second interfacing side surfaces;
• a first lateral member securing to and extending substantially perpendicularly from a first end of the elongate base member, the first lateral member extending through the first bore hole;
• and
• a second lateral member securing to and extending substantially perpendicularly from a second end of the elongate base member, the second lateral member extend through the second bore hole.