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Paving material for automobile exhaust absorbing ultrathin overlay and paving method

A technology for absorbing exhaust gas and automobile exhaust gas, applied to condensate pavement paved on site, roads, roads, etc., can solve problems such as limitations and immature technology, and achieve the effect of accelerating promotion and application

Inactive Publication Date: 2015-03-04
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, only relying on adding purification facilities to vehicle exhaust emissions has certain limitations, so the improvement of the road environment should be used to purify exhaust gas, such as applying exhaust-absorbing materials or films on guardrails, reflectors, etc., but these technologies Still immature, limited by external hardware facilities

Method used

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  • Paving material for automobile exhaust absorbing ultrathin overlay and paving method
  • Paving material for automobile exhaust absorbing ultrathin overlay and paving method
  • Paving material for automobile exhaust absorbing ultrathin overlay and paving method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0076] A paving material for absorbing automobile exhaust type ultra-thin overlay, the paving material comprises the following components and the mass fraction of each component is:

[0077] Fine gravel: 100 parts;

[0078] Exhaust gas absorption type high-concentration modified emulsified asphalt: 12 parts;

[0079] Exhaust gas-absorbing emulsified asphalt: 4 parts.

[0080] In this example, the fine gravel is fine-grained gravel with a particle size of 3 to 5 mm; the evaporation residue content of the exhaust gas-absorbing high-concentration modified emulsified asphalt is not less than 65%, and the evaporation residue content of the exhaust gas-absorbing emulsified asphalt is not less than 55%.

[0081] The specific construction process of the above paving materials is as follows:

[0082] (1) Detect and evaluate the strength of the original road surface and vehicle exhaust emissions, and then determine the test section;

[0083] (2) Calibrate the asphalt spreader and gr...

Embodiment 2

[0088] A paving material for absorbing automobile exhaust type ultra-thin overlay, the paving material comprises the following components and the mass fraction of each component is:

[0089] Fine gravel: 100 parts;

[0090] Exhaust gas absorption type high-concentration modified emulsified asphalt: 16 parts;

[0091] Exhaust gas-absorbing emulsified asphalt: 6 parts.

[0092] In this example, the fine gravel is fine-grained gravel with a particle size of 3 to 5 mm; the evaporation residue content of the exhaust gas-absorbing high-concentration modified emulsified asphalt is not less than 65%, and the evaporation residue content of the exhaust gas-absorbing emulsified asphalt is not less than 55%.

[0093] Above-mentioned laying material, concrete construction process is with embodiment 1.

[0094] Embodiment 1 and embodiment 2 are carried out trial paving, and the pavement performance detection result that obtains is as shown in table 1:

[0095] Table 1 road performance t...

experiment example

[0102] In addition to the road implementation cases, laboratory performance simulations were carried out for each proportion of the components, as shown in Table 3, Table 4, Table 5, and Table 6. The experimental measurements of the paving materials of each proportion meet the road use requirements.

[0103] Table 3 Proportion Components of Paving Materials

[0104]

[0105] Table 4 The proportioning components of the tail gas absorption type high-concentration modified emulsified asphalt in the experimental example

[0106]

[0107] The proportioning components of the tail gas absorbing emulsified asphalt in the experimental example in Table 5

[0108]

[0109] The proportioning composition of tail gas absorbent in the experimental example of table 6

[0110]

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Abstract

The invention discloses a paving material for an automobile exhaust absorbing ultrathin overlay and a paving method. The paving material for the automobile exhaust absorbing ultrathin overlay comprises the following components: fine macadam, exhaust absorbing high-concentration modified emulsified asphalt and exhaust absorbing emulsified asphalt. By adopting the paving material for the automobile exhaust absorbing ultrathin overlay and the paving method provided by the invention, the exhaust absorbing high-concentration modified emulsified asphalt is paved on the original road surface to form a bottom-layer colloidal plate body, playing the bonding and waterproof roles, and the fine macadam has the function of protecting the bottom-layer asphalt and can also bear rolling and abrasion of travelling vehicles; the top-layer automobile exhaust absorbing emulsified asphalt not only has the function of stabilizing the macadam, but also mainly has the function of absorbing and catalytic decomposition on the automobile exhaust; and not only is the original macadam seal coat construction process not affected, but also the popularization and application of the maintenance process or thin overlay process can be quickened.

Description

technical field [0001] The invention relates to a laying material and a laying method of an ultra-thin overlay absorbing automobile exhaust, which belongs to the construction technology of functional maintenance overlays on urban expressways, tunnel pavements, bridge decks and other road sections with large traffic flow and high population density . Background technique [0002] Ultra-thin overlay technology is a kind of thin-layer overlay technology, which belongs to the field of preventive maintenance. It is a functional maintenance technology implemented on the premise that the strength of the pavement structural layer meets the requirements, that is to say, there is no structural disease. . In developed countries in Europe and the United States, thin-layer overlay technology has been widely used as early as the 1980s, especially in France. Since 1986, France has used thin-layer overlays of various thicknesses. Therefore, in its specification "NFP98-137", France has cle...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B26/26E01C7/35
Inventor 黄晓明李志栋
Owner SOUTHEAST UNIV
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