Noisy road surface and construction method thereof

Abstract

The invention discloses a noisy road surface. A single-grading asphalt mixture is adopted in the noisy road surface, and the noisy road surface comprises a medium-sized asphalt mixture, wherein the proportion of the medium-sized asphalt mixture is as follows: 3.0-4.5% of RA resin bitumen, 80.0-85.0% of a stone material with a grain size of 18-22, 10.0-15.0% of a stone material with a grain size of8-12, and 4.0-5.0% of cement. The invention also provides a construction method of the noisy road surface. The noisy road surface and the construction method provided by the invention effectively avoid the problems that the technical indexes of small-scale production of a hot-mixed asphalt mixture is difficult to control, avoids the influence of the temperature of the hot-mixed asphalt mixture tothe compactness and porosity and the like of a finished road surface, and solves the technical problem that the adhesive strength of a common asphalt mixture and modified asphalt mixture to an asphalt mixture consisting of an aggregate with a special single-grading mix proportion does not reach the standard, and the noisy road meets the test requirement.

Description

technical field [0001] The invention relates to the field of construction engineering, in particular to a noise road surface and a construction method thereof. Background technique [0002] In order to develop more quiet tires, and cooperate with customers to develop large-pore noise test roads for quiet effect testing, refer to the decibel value spectrum curve within the international standard 0-500HZ, the decibel value in the middle section of 260HZ needs to be excited to a range close to 60, the overall The decibel spectrum curve conforms to a similarity of more than 80% (± 3dB), and the asphalt pavement with the conventional ratio cannot meet the requirements through test detection. And there are the following defects: 1. Although the hot-mix asphalt mixture adopts certain insulation covering measures during transportation, there is still a certain degree of temperature loss, especially the temperature of the mixture at 20cm on the surface of the transport vehicle; and t...

AI Technical Summary

Problems solved by technology

[0002] In order to develop more quiet tires, and cooperate with customers to develop large-pore noise test roads for quiet effect testing, refer to the decibel value spectrum curve within the international standard 0-500HZ, the decibel value in the middle section of 260HZ needs to be excited to a range close to 60, the overall The decibel spectrum curve conforms to a similarity of more than 80% (±3dB). Through the test, the asphalt pavement with the conventional ratio cannot meet the requirements

And there are the following defects: 1. Although the hot-mix asphalt mixture adopts certain insulation covering measures during transportation, there is still a certain degree of temperature loss, especially the temperature of the mixture at 20cm on the surface of the transport vehicle; and the large-pore noise test road The construction process of asphalt mixture takes a long time, the temperature drops rapidly during the construction of the mixture, the construction process time is relatively tight, the temperature maintenance is greatly affected by factors such as air temperature and construction time, and the quality control is difficult; 2. Due to the grade of asphalt mixture It is equipped with a single grade, the structural strength and stability are low, and the granular material peels off during the test; 3. After the pavement is rolled and formed, the pore distribution is uneven, and the porosity (ie, the structure depth detection standard) cannot meet the requirements, so The decibel value of road tire noise excitation cannot meet the spectrum requirements

Images