A kind of two-way interlocking brick and the pavement and pavement paving method using the brick

Abstract

A double-direction interlocking brick has a top surface (1) and a bottom surface (2). It also includes two lower bearing surfaces (3) which are symmetrically set on two sides of the double-direction interlocking brick, and the angle between each lower bearing surface (3) and the bottom surface (2) is an obtuse angle. Two upper bearing surfaces (4) which are symmetrically set on the other two sides of the double-direction interlocking brick are also included. The angle between each upper bearing surface (4) and the bottom surface (2) is an acute angle. A pavement using the double-direction interlocking brick and a paving method using the double-direction interlocking brick are also provided.

Description

technical field [0001] The present invention relates to the design of engineering pavement structures for roads, and more particularly to a two-way interlocking brick and a pavement and pavement method using the same, by interlocking side by side identical bricks and / or similar bricks with complementary shaped sides Laying to be applied to pavement structures such as highways and municipal roads, the invention has high strength, easy assembly, simple positioning, reduced structural temperature shrinkage crack deformation, strong impact fatigue resistance, low cost, and can realize factory production, suitable for large area promotion. And in the reconstruction of old roads, the maintenance time of concrete products is saved, which is conducive to the rapid maintenance of road structures. Background technique [0002] At present, the pavement structure design of road engineering in my country is divided into two types: rigid pavement and flexible pavement. The flexible pavem...

AI Technical Summary

Problems solved by technology

However, due to the influence of temperature expansion and contraction, the temperature cracks produced by the cement-stabilized macadam base cannot be avoided, and the reflection cracks caused by the asphalt pavement have become the most important factor affecting the service life of the road pavement

And because the cement-stabilized crushed stone structure is to reduce shrinkage cracks, the amount of cement is strictly limited (below 6%), making this structure low in strength (3.5MPa for expressway design) and not strong in impact fatigue resistance. Under the impact, the subgrade is seriously damaged, which has become the most important factor in the damage of road pavement in our country.

[0004] At present, the service life of roads for heavy-duty traffic in my country is basically 5-8 years. In response to this problem, foreign countries began to design and use full-thickness long-life pavement in the 1980s. The pavement structure of this road is all flexible asphalt pavement structure. However, the cost of laying roads is very high and the economic cost is too high, so it is not suitable for large-scale promotion and use in my country.

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