Difference between subgrade compactness test and surface concrete compressive strength test

Compaction is one of the key indexes of subgrade construction quality. If the compaction quality of subgrade is not up to standard, it will cause serious quality problems such as subgrade settlement and pavement fracture. Sand filling method, nuclear densitometer determination method and circular knife method are commonly used in highway engineering construction.

Analysis of traditional subgrade compactness detection method

1, sand filling method:

Destructive detection method

The process is cumbersome and takes a long time.

Continuous detection cannot be achieved.

Affected by human factors? You can't test until it's finished.

2, ring knife method:

Destructive detection method

Continuous detection cannot be achieved.

It is greatly influenced by material density.

You can't test until it's finished.

3, nuclear detection method:

Nondestructive testing method

Continuous detection cannot be achieved.

Inspection after completion of construction

Get the results in a few minutes.

The application of the above methods has considerable limitations, which are aggravated by complex operations and unrepresentative test results. At the same time, because the above methods are generally destructive, it is one of the urgent problems to need a nondestructive, rapid and accurate detection method. Enchi introduced a new technology-intelligent compaction monitoring system.

ENH continuous compaction monitoring system, omni-directional digital construction, remote monitoring, cluster coordination, real-time display of wheel track passing rate during rolling, effective prevention of overpressure and undervoltage, and realization of optimal rolling of construction sections; The whole process control of the construction process is synchronized with the construction, which does not interfere with the construction and has high efficiency; Friendly man-machine interface, simple operation and easy operation.

Pavement compactness monitoring

Real-time monitoring of pavement construction quality, through the collection and analysis of the construction information of roller equipped with compaction sensor, the compaction quality will be fed back to the easy-to-understand picture navigation information on the electronic screen of the roller cockpit at the first time, and the operator will be guided by intelligent compaction to avoid under-voltage and over-voltage.

The system will collect and analyze the feedback data of compaction trajectory, times, pavement compaction temperature, speed, etc., for the operator's reference and navigation, so as to save the construction cost to the maximum extent and ensure the pavement compaction quality, killing two birds with one stone.