Continuous Pavement with Three-Dimensional Joints JRI

Paper by VÁZQUEZ DEL ÁRBOL from ISCR 9th 2004 Instanbul Turkey

From the point of view of construction performances concrete qualities are well known, durability, high elasticity modulus and workability, for instance, stand for them among many others. But it is also well known that unfortunately, not all of its properties are on the positive side. Cracking, by a variety of reasons, including shrinkage, is a defective feature and accordingly, various technical procedures have been developed to avoid, limit or fill cracking by reinforcing and/or sealing. The present system takes advantage of the natural development of shrinkage in concrete to induce the formation of joints along the lines of previously placed system devices. Up to now, it has been used satisfactorily as concrete paving in streets, roads, as well as in tramways and harbor platforms. Railways, channels, tunnels, dams, culverts and dikes, and so forth, belong to areas of future exploration. This system induces in a in-situ concrete pavement an efficient interlocking indentation between the slab elements resulting from shrinkage. A ready-made device set extended along the previously chosen joint lines is able to ensure this alternate interlocking of neighbouring slabs after shrinkage has taken place. Shear and bending moments are transmitted through the contact surfaces of the resulting joint.

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