A kind of reinforced asphalt pavement construction method
A technology of asphalt pavement and construction method, which is applied in the direction of roads, roads, pavement details, etc., can solve the problems of easy slippage, high asphalt temperature, and low base temperature, etc., and achieve the effect of increasing firmness, firm connection, and firm structure
Active Publication Date: 2021-07-02
广东宏骏建筑工程有限公司
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Problems solved by technology
[0009] (1) When paving, the temperature difference between layers is large, the temperature of the base layer is low, and the temperature of the newly laid asphalt is high. The two cannot be well combined, and it is easy to cause a weak bonding surface
[0010] (2) Since the asphalt surface layer and the base layer use different mixtures, the elastic modulus is very different, and the temperature shrinkage or expansion rate is also different, which is prone to slippage
Method used
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Embodiment Construction
[0032] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0033] refer to figure 1 , is a kind of reinforced asphalt pavement construction method disclosed by the present invention, and the steps are as follows:
[0034] Step 1: Prepare the base layer 5, check the thickness, compactness, flatness, road arch, etc. of the base layer 5, if there are loose, potholes, etc., repair the base layer 5, and clean the base layer 5.
[0035] Step 2: Sprinkle the penetration layer oil 3, and spread one of liquid asphalt, emulsified pitch or coal tar pitch on the surface of the base layer 5 or the combination of the penetration layer oil 3, preferably liquid asphalt penetration layer oil 3, the penetration layer The amount of oil 3 is 1.0kg / m2.
[0036] Step 3: Laying partitions 2, so that the road surface presents spaced connection units 1, such as figure 2 with image 3 As shown, the partitions 2 are arranged staggeredly o...
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A method for constructing a reinforced asphalt pavement, comprising the following steps: Step 1: Base base preparation; Step 2: Sprinkling penetration layer oil on the surface of the base base; Sprinkle the sealing oil into the connecting unit after the partition is completed, and sprinkle the pre-mixed gravel before the sealing oil solidifies, remove the partition to form a gap between the connecting units, and roll the pre-mixed gravel into it. In the sealing layer oil, a linking layer is formed; step 4: laying a thin layer of asphalt on the linking layer, and using a road surface heating vehicle to heat the asphalt thin layer and the linking layer; step 5: paving asphalt mixture. The connection layer composed of multiple connection units, under the action of the road surface heating vehicle, the asphalt that fills the gap will increase the contact area and contact depth with the connection unit, and increase the firmness of the connection between the asphalt thin layer and the sealing oil .
Description
technical field [0001] The invention relates to the technical field of asphalt pavement construction, in particular to a reinforced asphalt pavement construction method. Background technique [0002] my country's asphalt pavement structure includes: surface course, tie course and base course. The existing asphalt pavement construction basically meets the current traffic load and traffic growth requirements, but most of them have been damaged to varying degrees within the design period, that is, the interlayer shear strength cannot meet the design life requirements. [0003] The bonding quality of each structural layer of asphalt pavement is one of the main factors affecting the life of asphalt pavement. The construction method of existing asphalt pavement, its construction steps are as follows: [0004] Step 1: Grassroots preparation. Check the thickness, compactness, flatness and road crown of the base layer. If the base is loose, potholes, etc., it must be repaired fir...
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IPC IPC(8): E01C7/18E01C11/02
CPCE01C7/18E01C7/185E01C11/02
Inventor 黎雄武郑亦撑
Owner 广东宏骏建筑工程有限公司