Bonded Concrete Walkway

Abstract

A bonded concrete walkway segment includes a walkway body formed of a concrete material, a duct extending through the walkway body from a first end of the walkway body to an opposite second end of the walkway body, a tendon including a strand extending through the duct, and a tendon grout filled within the duct around the strand. The tendon grout is cured to fix the strand in the duct.

What is claimed is: 
     
         1 . A bonded concrete walkway segment, comprising:
 a walkway body formed of a concrete material;   a duct extending through the walkway body from a first end of the walkway body to an opposite second end of the walkway body;   a tendon including a strand extending through the duct; and   a tendon grout filled within the duct around the strand, the tendon grout is cured to fix the strand in the duct.   
     
     
         2 . The bonded concrete walkway segment of  claim 1 , wherein the duct has a corrugated shape. 
     
     
         3 . The bonded concrete walkway segment of  claim 1 , wherein the strand is in a tensioned state with the tendon grout cured. 
     
     
         4 . The bonded concrete walkway segment of  claim 3 , wherein the tendon includes an anchor disposed within the walkway body and attached to the strand, the anchor holds the strand in the tensioned state. 
     
     
         5 . The bonded concrete walkway segment of  claim 1 , wherein the strand is one of a plurality of strands of the tendon that extend through the duct. 
     
     
         6 . The bonded concrete walkway segment of  claim 1 , further comprising a grout valve assembly extending through an outer surface of the walkway body and communicating with the duct, the tendon grout is fed into the duct through the grout valve assembly. 
     
     
         7 . A bonded concrete walkway assembly, comprising:
 a plurality of bonded concrete walkway segments each having a walkway body formed of a concrete material, a duct extending through the walkway body from a first end of the walkway body to an opposite second end of the walkway body, a tendon including a strand extending through the duct, and a tendon grout filled within the duct around the strand, the tendon grout is cured to fix the strand in the duct.   
     
     
         8 . The bonded concrete walkway assembly of  claim 7 , wherein one of the bonded concrete walkway segments is connected to another of the bonded concrete walkway segments at a joint, the joint includes an intermediate concrete filled and cured between the walkway bodies of the bonded concrete walkway segments. 
     
     
         9 . The bonded concrete walkway assembly of  claim 8 , wherein the duct of the one of the bonded concrete walkway segments is connected to the duct of the another of the concrete walkway segments by a duct connection. 
     
     
         10 . The bonded concrete walkway assembly of  claim 9 , wherein the joint includes a reinforcement assembly disposed between the walkway bodies, the duct connection and the reinforcement assembly are disposed within the intermediate concrete. 
     
     
         11 . The bonded concrete walkway assembly of  claim 7 , wherein the intermediate concrete has a coating on an outer surface. 
     
     
         12 . The bonded concrete walkway assembly of  claim 8 , wherein the second end or a side of each of the walkway bodies faces the joint, the walkway body of at least one of the bonded concrete walkway segments has a protrusion extending from a portion of the second end. 
     
     
         13 . The bonded concrete walkway assembly of  claim 12 , wherein the joint has a first gap between the second ends or sides of the walkway bodies and a second gap at the protrusion of the at least one bonded concrete walkway segment, the second gap is less than half a width of the first gap, the intermediate concrete is filled in the first gap and the second gap. 
     
     
         14 . The bonded concrete walkway assembly of  claim 13 , wherein the joint has an elastomeric sealant disposed in the second gap. 
     
     
         15 . A method of assembling a concrete walkway, comprising:
 casting a walkway body of a concrete material around a duct, the duct extends through the walkway body from a first end of the walkway body to an opposite second end of the walkway body;   extending a strand of a tendon through the duct;   tensioning the strand in the duct to a tensioned state;   filling the duct with a tendon grout while the strand is in the tensioned state; and   curing the tendon grout with the strand in the tensioned state to fix the strand in the duct, forming a bonded concrete walkway segment.   
     
     
         16 . The method of  claim 15 , wherein, in the casting step, a grout valve assembly is cast in the walkway body to extend through an outer surface of the walkway body, the grout valve assembly communicates with the duct. 
     
     
         17 . The method of  claim 16 , wherein the tendon grout is filled in the duct through the grout valve assembly. 
     
     
         18 . The method of  claim 17 , further comprising, after the tendon grout is cured, cutting the grout valve assembly at the outer surface of the walkway body and filling a recess of the outer surface with a body grout. 
     
     
         19 . The method of  claim 15 , wherein the bonded concrete walkway segment is one of a plurality of bonded concrete walkway segments, and further comprising connecting the bonded concrete walkway segments at a joint that includes an intermediate concrete filled and cured between the walkway bodies of the bonded concrete walkway segments. 
     
     
         20 . The method of  claim 19 , wherein, before the intermediate concrete is filled and cured in the joint, the ducts of the bonded concrete walkway segments are connected in the joint by a duct connection.