Rapid mixed asphalt material gradation detection method and equipment thereof

Abstract

The invention provides a rapid mixed asphalt material gradation detection method and equipment thereof. The rapid mixed asphalt material gradation detection method is characterized by comprising the following steps: (1) sampling a mixed asphalt material; (2) putting a mixed asphalt material sample into a hopper, and subsequently opening the hopper to drop off the mixed asphalt material sample into an inner disc below the hopper; (3) after the inner disc is fully piled, dropping off the mixed asphalt material sample into an outer disc; (4) weighing the mixed asphalt material sample in the outer disc, and calculating rough gradation ratio indexes CMc and CMF and gradation stable coefficient fai, thereby judging whether the gradation of the mixed asphalt material is qualified or not; the rapid mixed asphalt material gradation detection equipment comprises the hopper, a speed control hammer, a mounting rack, a bracket, the outer disc, the inner disc and a base. The method provided by the invention is simple and convenient in detection, the gradation of the mixed asphalt material can be judged by calculating the rough gradation ratio indexes CMc and CMF and gradation stable coefficient fai, on-site detection can be performed rapidly in real time, early-stage diseases of an asphalt pavement can be prevented, and very large social and economic benefits can be achieved.

Description

technical field [0001] The invention relates to the field of detection equipment, in particular to a rapid detection method and equipment for asphalt mixture gradation. Background technique [0002] In recent years, the phenomenon of early failure of asphalt pavement is very common, which greatly shortens the life of asphalt pavement. The gradation composition of asphalt mixture is the key factor affecting the construction quality and service life of asphalt pavement. [0003] Due to the limited construction conditions on site, there are only some routine testing items and equipment. If an extractor is used for gradation analysis and determination of asphalt content, or the combustion method is used as in Application No. 201110280547.8 "A Method for Automatic Detection and Control of Asphalt Mixtures" For gradation analysis, the test time of these two methods is relatively long. When the results come out, the paved road section has been compacted and cannot be disposed of. T...

AI Technical Summary

Problems solved by technology

[0003] Due to the limited construction conditions on site, there are only some routine testing items and equipment. If an extractor is used for gradation analysis and determination of asphalt content, or the combustion method is used as in Application No. 201110280547.8 "A Method for Automatic Detection and Control of Asphalt Mixtures" For gradation analysis, the test time of these two methods is relatively long. When the results come out, the paved road section has been compacted and cannot be disposed of. Therefore, a more convenient and efficient asphalt mixture detection based on the original basis is needed. method and equipment

Images