Low-noise asphalt pavement mixture and pavement construction quality control method

A technology of asphalt mixture and low-noise asphalt, applied in the direction of sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problems of noise pollution, asphalt mixture road noise, etc., and achieve the effect of low road noise

Inactive Publication Date: 2014-12-03
SHANDONG JIANZHU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a low-noise asphalt pavement mixture, which solves the problem that the

Method used

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  • Low-noise asphalt pavement mixture and pavement construction quality control method
  • Low-noise asphalt pavement mixture and pavement construction quality control method
  • Low-noise asphalt pavement mixture and pavement construction quality control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment example 1

[0054] Implementation Case 1: Prepare porous asphalt mixture with mineral mixture, asphalt and fiber. Select three gradations (fine, medium and coarse), the asphalt content is 6.0%, and the fiber filling amount is 0.4%, to make Marshall test pieces (50 times on both sides). Synthetic gradation 1: 39% for basalt 10-15; 47% for basalt 5-10; 8% for stone chips; 3% for limestone machine-made sand; 3% for mineral powder. Synthetic gradation 2: 43% for basalt 10-15; 47% for basalt 5-10; 4% for stone chips; 3% for limestone machine-made sand; 3% for mineral powder. Synthetic gradation 3: 47% for basalt 10-15; 47% for basalt 5-10; 0% for stone chips; 3% for limestone machine-made sand; 3% for mineral powder. The asphalt mixture was prepared with the above three gradations, and the porous asphalt mixture was designed by the Marshall design method. The volume parameters of each group of Marshall specimens are shown in Table 1.

[0055] Table 1 Relevant parameters of each group of Mars...

Embodiment example 2

[0058] Implementation case 2: in the implementation case 1, the synthetic gradation 2 is the best gradation, the asphalt content is 6.0%, 6.3%, 6.6%, and the fiber content is 0.4% to make a Marshall specimen (both sides are hit on each side) 50 times), the measured indicators are shown in Table 2, Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 .

[0059] Table 2 Test index of Marshall specimen

[0060]

[0061] The target mix ratio design porosity is about 18%, the asphalt content is 6.2%, and other indicators (leakage analysis, scattering loss and water seepage rate, etc.) all meet the requirements, and the density is the largest.

Embodiment example 3

[0062] Implementation Case 3: The porous asphalt mixture was designed based on the asphalt mixture material composition in Cases 1 and 2, in which the asphalt content was 6.2%, and the fiber content was 0.4%. The rutting test and the freeze-thaw splitting test were carried out. The results are shown in Table 3 . The test road was paved with this porous asphalt mixture, and the samples of the mixing building were analyzed. The leakage test is shown in Table 4, and the field void ratio and scattering results are shown in Table 5 (the maximum theoretical density is 2.546).

[0063] Table 3 Results of rutting and freeze-thaw splitting tests

[0064] indicators

[0065] Table 4 Results of leak test

[0066] sample

[0067] Table 5 The results of the Kentaburg scatter test

[0068] Specimen

[0069] It can be seen from the above that under the premise of limiting the void ratio to 20%, the optimal asphalt content of the newly improved ore grading ran...

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Abstract

The invention discloses a low-noise asphalt pavement mixture which is composed of the following components in percentage by mass: 40-50% of basalt 10-15, 40-50% of basalt 5-10, 2-10% of stone dust, 2-6% of lime rock machine-made sand, less than 5% of ore powder, 0.2-0.6% of fiber and 6.0-7.0% of asphalt, totaling 100%. The size distribution of the ores is as follows: the percent of ores passing through a 16mm square mesh sieve is 100%, the percent of ores passing through a 13.2mm square mesh sieve is 86-100%, the percent of ores passing through a 9.5mm square mesh sieve is 56-74%, the percent of ores passing through a 4.75mm square mesh sieve is 11-25%, the percent of ores passing through a 2.36mm square mesh sieve is 6-10%, the percent of ores passing through a 0.075mm square mesh sieve is 2-4%, and the void volume of the mixture is 18-20%. The pavement prepared by the asphalt mixture has the advantage of low noise.

Description

technical field [0001] The invention belongs to the technical field of asphalt pavement production, and relates to a low-noise asphalt pavement mixture and a method for controlling the quality of pavement construction. Background technique [0002] With the rapid development of the transportation industry, traffic noise caused by heavy traffic volume and high-speed driving has become the main form of pollution that plagues residents' lives, and has attracted more and more attention. Noise is very harmful. On the one hand, it affects people's mental state, making it difficult for people to concentrate on work, causing insomnia, rapid heartbeat and mental stress; on the other hand, it can damage the auditory system, causing short-term or long-term hearing loss. The environment can increase the chances of stomach ulcers, high blood pressure or psychosis. Therefore, how to effectively reduce the harm of traffic noise has become an urgent problem for road workers. [0003] High...

Claims

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Application Information

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IPC IPC(8): C04B26/26C04B14/02C04B18/12
CPCY02W30/91
Inventor 任瑞波王鹏王立志徐强耿立涛
Owner SHANDONG JIANZHU UNIV
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