Unlock instant, AI-driven research and patent intelligence for your innovation.

Field rapid non-destructive detecting device of freezing-melting destruction of asphalt pavement

A technology for asphalt pavement and non-destructive testing, which is applied in the direction of roads, roads, road repairs, etc. It can solve the problems of large overall destructiveness of the road surface, deviation of road surface performance, and delayed repair, so as to save time and labor. Targeted, small impact, and error small effect

Inactive Publication Date: 2010-01-13
HARBIN INST OF TECH
View PDF0 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of high subjectivity and low accuracy in the existing asphalt pavement freeze-thaw damage detection, as well as the large damage to the overall road surface in the auxiliary test, the deviation between the test and the original pavement performance, and time-consuming and labor-intensive problems. and the problem of delaying the best time to repair the pavement, and then provide a rapid non-destructive testing equipment for freezing and thawing damage of asphalt pavement

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Field rapid non-destructive detecting device of freezing-melting destruction of asphalt pavement
  • Field rapid non-destructive detecting device of freezing-melting destruction of asphalt pavement
  • Field rapid non-destructive detecting device of freezing-melting destruction of asphalt pavement

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0007] Specific implementation mode one: combine Figure 1 ~ Figure 3 Describe this embodiment, the on-site rapid non-destructive testing equipment for asphalt pavement freeze-thaw damage in this embodiment includes a speed changer 1, a platen 2, a transmission rod 3, a steel brush 4, at least three leg sleeves 5 and the connection between the leg sleeves 5 The lifting rocker 6, the lifting brake ring 7, the fixed foot 8 and the transmission shaft 9 are matched in quantity, and the steel brush 4 is composed of a steel brush seat 4-1 and a plurality of steel wire bundles 4-2. The steel wire bundle 42 is fixed on the lower end surface of the steel brush holder 4-1, the at least three leg sleeves 5 are installed on the lower end surface of the table 2, and the speed changer 1 is installed on the upper end surface of the table 2 , the upper end of the transmission rod 3 passes through the platen 2 and is affixed to the output end of the speed changer 1, the steel brush holder 4-1 ...

specific Embodiment approach 2

[0008] Specific implementation mode two: combination figure 1 with figure 2 The present embodiment will be described. The number of steel wire bundles 4-2 in the present embodiment is 18 to 22. Such setting increases the strength of the steel brush. Other compositions and connections are the same as in the first embodiment.

specific Embodiment approach 3

[0009] Specific implementation mode three: combination figure 1 The present embodiment will be described. The length L of the steel wire bundle 4-2 of the present embodiment is 15 cm. Such setting is more suitable for the detection of freeze-thaw damage of asphalt pavement. Other compositions and connections are the same as those in the second embodiment.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a field rapid non-destructive detecting device of freezing-melting destruction of an asphalt pavement, which belongs to detecting devices of freezing-melting destruction of asphalt pavements. The invention solves the problems that the freezing-melting destruction detection of the prior asphalt pavement has large subjectivity and low accuracy, and an auxiliary test has large destructiveness to the whole pavement, generates deviations with the original pavement performance, wastes time and labor force and delays the optimal time for repairing the pavement. In the invention, support leg pipe casings are arranged on the lower end surface of a bedplate, and a variable-speed motor is arranged on the upper end surface of the bedplate; the upper end of a driving rod is fixedly connected with the output end of the variable-speed motor; a steel brush holder of a steel brush is fixedly arranged on the lower end surface of the driving rod, a driving shaft is arranged in each support leg pipe casing, and the lower end of each driving shaft extends out of the support leg pipe casing and is fixedly connected with a fixed leg holder; the lower end of each lifting rocker is fixedly connected with the driving shaft, and a lifting brake ring is connected with the driving shaft by threads. The invention has the advantages of less influence on the pavement, short period, small errors, time and labor saving, strong pertinency, and the like.

Description

technical field [0001] The invention relates to an asphalt pavement freeze-thaw damage detection device. Background technique [0002] The existing technology at home and abroad mostly borrows the theory of pavement management system for the detection and judgment of the damage degree of asphalt pavement freeze-thaw damage. However, the damage degree of asphalt pavement evaluated by these pavement management systems is judged based on the appearance of the pavement, which is mainly based on experience, and is highly subjective and not accurate enough to be grasped by ordinary technicians. At the same time, there is a lack of targeted auxiliary tests. The current auxiliary test is to take cores on the asphalt pavement, and then bring the core samples back to the laboratory for various tests; this method is a destructive test, and 20 cylindrical cores with a diameter of 101.6mm and a height of 63.5mm are taken per kilometer of the sampling road section After sampling, many co...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): E01C23/01
Inventor 谭忆秋岳军声蓝天云陈克群周纯秀赵立东刘彦郭猛
Owner HARBIN INST OF TECH