Road construction method
A road construction and road technology, which is applied to roads, roads, on-site cohesive pavements, etc., can solve the problems of unsatisfactory performance of non-woven fabrics, affecting road life, and low compressive strength, so as to reduce drying shrinkage and The possibility of cracking, the effect of improving the service life and improving the strength
Active Publication Date: 2017-02-08
天津亚平市政工程集团有限公司
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Problems solved by technology
[0003] The current road construction generally adopts the method of laying asphalt. Although the pavement of this method can meet the requirements, its service life is low, its compressive strength is low, and it is prone to cracks. In some special occasions, in asphalt Although the method of laying ordinary non-woven fabrics in the middle of the road reduces the occurrence of cracks to a certain extent, due to the unsatisfactory performance of the non-woven fabrics, it will still be damaged when it is used for a long time and overloaded, especially in the case of soft roadbeds. It is easy to cause cracks on the road surface, accelerate the damage of the road surface, and affect the life of the road
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[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0025] see Figure 1-2 , the present invention provides a kind of technical scheme: a kind of road construction method, it comprises the following steps:
[0026] (1) Level the ground of the road to be constructed to form a roadbed, and set up drainage ditches while forming the roadbed;
[0027] (2) Lay a layer of cushion on the roadbed. When laying the cushion, the cushion adopts a sand cushion, wherein the sand cushion is composed of 48% crushed stone, 30% ...
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Abstract
The invention discloses a road construction method. The road construction method comprises the following steps: firstly, forming a roadbed; secondly, paving a cushion layer on the roadbed; thirdly, paving rubber asphalt on the cushion layer, and compacting the cushion layer on which the rubber asphalt is paved; fourthly, uniformly paving a layer of molten emulsified asphalt on the compacted asphalt, and quickly paving prepared crosslinking fiber cloth on the molten emulsified asphalt, wherein the crosslinking fiber cloth is prepared by cross linking polystyrene fibers, ammonium aluminum carbonate hydroxide fibers and polypropylene fibers; fifthly, paving an asphalt mixture pavement layer on the crosslinking fiber cloth; sixthly, compacting a road while hot by adopting a road roller. According to the road construction method disclosed by the invention, the crosslinking fiber cloth is used, has higher tensile strength and can be well combined with asphalt, so that the fracture toughness of the road is enhanced. The road construction method disclosed by the invention is novel and is very suitable for high-quality road surfaces and road surfaces with soft roadbeds; the service life of the road surface can be greatly prolonged.
Description
technical field [0001] The invention relates to a road construction method, which belongs to the technical field of municipal infrastructure construction and road construction. Background technique [0002] With the development of the economy, construction projects have increased rapidly, but various harsh geological conditions cannot be avoided during the construction process. Building municipal facilities and roads on soft soil foundations, without treatment or improper treatment of soft foundations, often leads to Foundation instability or excessive settlement, resulting in damage to building facilities or failure to use them normally. In order to improve the strength of the soft soil foundation and minimize the post-construction settlement, the road construction method in the soft foundation area must be improved in order to improve the road properties in this area, make it adapt to the deformation of the foundation, improve the strength of the road and service life. ...
Claims
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Login to View More IPC IPC(8): E01C7/32
CPCE01C7/32
Inventor 李爱军
Owner 天津亚平市政工程集团有限公司