(A) Transverse expansion joints shall be constructed at the end of a radius at all intersections, at the beginning and ending of all curves and at all locations where new concrete abuts old concrete.
(B) Expansion joints shall be formed by inserting, in the proper place, strips of approved, preformed joint fillers one inch thick and cut to the shape of the crown of the pavement or of such length as will adjust to the shape of the crown. The joint fillers shall be bituminous type or non-extruding and resilient bituminous type and shall conform to ASTM Specification D-994 or ASTM Specification D-1751, respectively. The joint filler shall be one-half inch less than the thickness of the slab. The joint filler shall be set in place ahead of the pouring of the concrete perpendicular to the surface of the pavement and in a straight line at right angles to the center line of the pavement and resting on the subgrade. These strips shall be so set that the top of the strip is approximately one-half inch below the top of the finished pavement at all points. They shall be inserted continuously from the back of the integral curb or of the pavement on one side to the back of the integral curb or the pavement on the other side. Said strips shall be held securely to grade and alignment so that there is no appreciable movement of the same from the original position after placing and finishing of the concrete. Tamping, striking, floating and finishing shall be carried continuously across the joint. At the proper time after finishing, the concrete above the top of the joint filler shall be removed so as to expose the joint filler and the edges of the concrete shall be finished with a tool of one-half inch radius. The space between the top of the expansion joint and the top of the pavement shall be filled with hot expansion joint filler has herein specified.
(C) Bars in accordance with detail SD-23 shall be inserted through the pre-mold expansion joint on the center height of the concrete with eight inches of the bar on one side of the expansion joint material and seven inches on the other side. The dowels shall be coated with heavy grease and a metal expansion tube which is at least six inches long shall be placed over the seven-inch exposed part of the dowel.