Pavement joints and methods for treating the same
A technique for protecting joints in pavement structures includes applying a hardener/densifier to one or more surfaces that define a joint in a pavement structure and, optionally, to portions of one or more surfaces that are located adjacent to the joint. One or more other compounds, such as hydrophobic materials, water-resistant materials, anti-scaling compounds, anti-wear compounds, multi-functional blended compositions and the like, may also be applied to the surfaces that define a joint and/or to portions of one or more surfaces that are adjacent to the joint. A seal may also be formed in a joint in a pavement structure. Joints that have been protected in accordance with teachings of this disclosure are also disclosed.
1. A joint in concrete, comprising:
adjacent sections of concrete with opposed surfaces defining the joint;
a reaction product of a hardener/densifier and the concrete on the opposed surfaces; and
a coating on the opposed surfaces, the coating comprising:
a silane, a siloxane, and/or a silicone.
2. The joint of claim 1 , wherein the coating is over the reaction product of the hardener/densifier and the concrete.
3. The joint of claim 1 , wherein the coating comprises a product formed with a metal siliconate.
4. The joint of claim 1 , further comprising:
an anti-scaling compound on the opposed surfaces.
5. The joint of claim 1 , further comprising:
a seal within the joint, between the opposed surfaces of the adjacent sections of concrete.
6. The joint of claim 5 , wherein the seal comprises silicone.
7. The joint of claim 1 , further comprising:
the reaction product of the hardener/densifier and the concrete on an exposed surface of at least one section of the adjacent sections of concrete.
8. A joint in concrete, comprising:
a first section of concrete including a first outer surface and a first end surface, the first end surface defining a first joint surface;
a second section of concrete including a second outer surface and a second end surface, the second end surface defining a second joint surface;
a reaction product of a hardener/densifier and the concrete on the first joint surface and the second joint surface; and
a coating on the first joint surface and the second joint surface comprising:
a silane, a siloxane, and/or a silicone.
9. The joint of claim 8 , wherein the coating comprises a product formed with a metal siliconate.
10. The joint of claim 8 , further comprising:
an anti-scaling composition on the first joint surface and the second joint surface.
11. The joint of claim 8 , further comprising:
a seal between the first section and the second section.
12. The joint of claim 11 , wherein the seal comprises silicone.
13. The joint of claim 8 , further comprising:
the reaction product of the hardener/densifier and the concrete on at least a portion of at least one of the first outer surface and the second outer surface.
14. A joint in concrete, comprising:
a seal in the joint in the concrete;
a hardener/densifier or a seal reaction product of the hardener/densifier and the seal on the seal; and
a concrete reaction product of the hardener/densifier and the concrete on the joint, the hardener/densifier on the seal.
15. The joint of claim 14 , wherein the seal comprises a silicone seal.
16. The joint of claim 15 , wherein the seal comprises a protective coating on opposed surfaces of the joint.
17. The joint of claim 16 , wherein the seal reaction product covers opposed surfaces of the joint.
18. The joint of claim 14 , wherein the concrete reaction product also covers opposed surfaces of the joint.
19. The joint of claim 15 , wherein the joint comprises a preformed seal.
20. The joint of claim 15 , further comprising:
the concrete reaction product on an outer surface of at least a portion of at least one section of concrete adjacent to the joint.