Asphalt road

A kind of asphalt and road technology, applied in the direction of roads, roads, buildings, etc., can solve the problems that the rolling construction cannot be guaranteed, the construction quality is difficult to ensure, and the local compaction degree is insufficient, so that it is not easy to melt and flow, and the heat storage stability is good. , good anti-rutting and high-temperature cracking ability

Inactive Publication Date: 2016-12-14
江西省地质工程集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional rolling process is a single steel wheel roller and a rubber wheel roller rolling separately. The consequences of this are that the rolling time is too long and the temperature drops too much. Serious segregation, low flatness, insufficient local compaction, it is difficult to guarantee the construction quality

Method used

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  • Asphalt road
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Such as figure 1 As shown, an asphalt road comprises a roadbed 1, a roadbed 2 and a road surface 3, the roadbed 2 is arranged in the roadbed 1, the roadbed has a horizontal layered structure, and the roadbed is respectively the first mix from bottom to top. A slag layer, a crushed stone layer, a second mixed slag layer and a concrete layer, the second mixed slag layer is provided with a geogrid and a low-voltage shielded wire inside; the middle part of the road surface 3 is provided with a number of solar photovoltaic modules 4 along the road extension direction , the solar photovoltaic module 4 is connected to the photovoltaic inverter through a low-voltage shielded wire. The thickness of the first mixed slag layer is 30cm, the thickness of the gravel layer is 20cm, the thickness of the second mixed slag layer is 8cm, and the thickness of the concrete layer is 25cm. The gravel particle size of the crushed stone layer is not greater than 5cm, the total amount of which ...

Embodiment 2

[0034] A method for laying asphalt roads, comprising the steps of:

[0035] Step 1. Surveying and alignment, including re-measurement of conductors, centerlines, benchmarking points, cross-section inspection and re-measurement. Before the start of construction, carry out construction lofting, and release the subgrade edge, groove, slope toe, side ditch protection slope, borrowing field, etc. The location shall be marked with its outline, and the trees, weeds, shrubs, etc. within the scope of the route land shall be cleared, and the roadbed shall be dug;

[0036]Step 2: fill the subgrade in horizontal layers, divide it into horizontal layers according to the full width of the cross section, and fill it up layer by layer. The first layer is filled with mixed slag with a thickness of 30cm, and the second layer is filled with gravel , the thickness of the filling is 20cm, the third layer is filled with mixed slag, and the thickness of the filling is 8cm; after the filling is compl...

Embodiment 3

[0041] The asphalt mixture consists of 78 parts by mass of modified asphalt, 51 parts of gravel, 24 parts of styrene-butadiene-styrene triblock copolymer, 20 parts of polylactic acid-butylene succinate-polylactic acid triblock Segment copolymer, 8 parts of potassium formate and 11 parts of lignin fibers, the structural formula of the polylactic acid-butylene succinate-polylactic acid triblock copolymer is

[0042] .

[0043] Wherein, the particle size of the crushed stone in the mixture is not greater than 3cm, and the total amount of the particle size less than 0.075mm does not exceed 7% of the total amount, the crushed stone does not contain impurities, and the crushed stone has a strength of not less than 15MP . The modified asphalt is composed of 50 parts by mass of liquefaction residue, 25 parts of crosslinking agent and 82 parts of base asphalt, and the crosslinking agent is benzaldehyde.

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Abstract

The invention discloses an asphalt road, and belongs to the field of roads. The asphalt road comprises a roadbed, a subgrade and a road surface. The subgrade is arranged in the roadbed and is provided with a horizontal layered structure. The subgrade is provided with a first mixed slag layer, a rubble layer, a second mixed slag layer and a concrete layer from bottom to top, and a geogrid and low-voltage shielded wires are arranged in the second mixed slag layer. A plurality of solar photovoltaic modules are arranged in the middle of the road surface in the road extension direction, and the solar photovoltaic modules are connected with a photovoltaic inverter through the low-voltage shielded wires. The asphalt road has the characteristics of being high in flatness, capable of avoiding the circumstances of insufficient partial compaction degrees, serious temperature segregation and the like, good in road surface temperature sensing property, good in elasticity and ageing-resistant performance, not prone to melting or flowing at high temperatures, good in toughness and not likely to be cracked at low temperatures, capable of meeting the using requirements of high-grade roads, and capable of fully utilizing high temperatures of the road surface to conduct solar power generation.

Description

technical field [0001] The invention relates to a road, especially an asphalt road. Background technique [0002] Asphalt pavement has become the main form of high-grade highways in China because of its superior performance and driving advantages. However, ordinary road asphalt has poor temperature sensitivity, poor elasticity and aging resistance due to its own composition and structure. Flowing, easy to break at low temperature, difficult to meet the use requirements of high-grade roads. At the same time, during the rolling construction of the existing expressway asphalt pavement, the initial pressure is generally static pressure with a small-tonnage steel wheel roller. The wheel roller closes the surface and completes the final pressure. The traditional rolling process is a single steel wheel roller and a rubber wheel roller rolling separately. The consequences of this are that the rolling time is too long and the temperature drop is too large. The segregation is serio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C3/00E01C7/26E01C9/00C04B26/26
CPCC04B26/26C04B2111/0075E01C3/00E01C7/265E01C9/00C04B14/02C04B24/2688C04B24/283C04B24/04C04B16/02
Inventor 肖勇
Owner 江西省地质工程集团有限公司
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