Restructuring Pavement On Roadways Surface With Existing Damaged
February 18th, 2009 | 
Roadways for local traffic.
Roadways where traffic is the movement of vehicles of residents of the area without transit bus and in which only move in a regular, heavy trucks on services like garbage collection or allocation of water or gas .
The existing pavement is broken, bumpy, deformation, cracking and severe peeling often.
Constructive Procedure:
1). Verification levels of runoff, existing curbs, sewers and all additional works and prevent accumulation of stagnant water.
2). If no corrections are required for special levels, curbs or drainage facilities, the paving will be as follows:
a). Be verified through surveys and samples processed in
laboratory, both the thickness of existing asphalt layer, such as thickness and quality of material, to determine the thickness of material to be treated.
b). Determined the thickness of material will be removed and processed, if any, to be recycled with the addition of a bio-polymer is used as the basis of pavement. Or substituted for a material of suitable quality, if not acceptable for use, once recycled, the characteristics that he possesses.
c). The area was discovered, once removed the base material and existing asphalt layer, it will be inspected to detect, if any, bumps and verify its origin, for correction, such as in the presence of undesirable material, water leaks or other cause.
d). The surfaces shall be scarified superficially, he added moisture and are compacted to reach the level determined by the laboratory study.
e). After being tended properly compacted base and paving made with recycled material, or replaced, it will be applied on a polymer with irrigation league and will be compacted and a asphalt layer consisting of a mixture of asphaltic rubberized concrete, type Gap -graded (Stone Matrix Asphalt), in a compact thickness of 1 “, which form the bearing surface of the pavement.
3). The type of pavement referred to, will have a five-year warranty against defects due to normal use of the pavement
In the following article Perpetual Pavement, here a brief introduction: The concept of eternal or perpetual pavement or asphalt pavement of long duration, is not new. Actually asphalt pavement structures called full-depth and deep-strength have been being built since the sixties.
Pavement type full-depth are built directly on the sub-grade layer, and deep-strength type are placed on a relatively thin layer of granular material. One of the main advantages of these two types of flooring is that the whole section is thinner than those that employ a thickness of granular base of increased thickness.
As a result, can reduce the potential for fatigue cracking and efforts may be confined to the upper layer of the structure. These two advantages can be seen in a pavement eternal. So when the superficial efforts to reach a critical level, the solution will remove the most superficial layer of pavement structure and replacing the same.
To the next article.
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