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ECM-Vibro

It ensures quality while saving the costs. A system for continuous non-destructive measuring of compaction of soil during the works.


The aim of the compaction process is to achieve the required degree of compaction of the construction area in the shortest possible time and with the lowest possible cost. An essential part of this work is the measurement and the verification of the achieved compaction of materials. It is obvious, considering the necessary time and costs, that most methods of compaction measurement commonly used on building sites are time and costs consuming and thus of a little effect. In addition, the main disadvantage of these methods is their local character of measurement. For this reason, they do not give information about compaction of the whole area and therefore do not provide a guarantee that all insufficiently compacted spots will be detected. Most sophisticated solution according last standards BS 1377 or ZTVE StB 94 is compactometric system ECM - Vibro



What is the system ELECTRONIC COMPACTION METER

ELECTRONIC COMPACTION METER (ECM - Vibro compactometer) is a device for the verification and documentation of the state of compaction. This system represents a brand new quality in this field. The system is designed for installation on the vibratory compaction roller and allows measurement of the state of compaction of loose material directly during the work of the roller and it also informs instantly the operator about the state of compaction. In addition, a complete system allows a registration and subsequent evaluation of all measured data including statistical and graphical outputs in various formats.

ECM-Vibro system
ECM-Vibro system


Why choose the system ELECTRONIC COMPACTION METER

The main advantage of the ECM system is first, the possibility to reduce the number of overpasses needed for the achievement of the required degree of compaction, which brings along distinct savings of time and cost. Another significant advantage is the "mapping" of the compaction of the whole surface. This means that no under-compacted spots can be overlooked which often happens when using the standard methods. Sophisticated laboratory and field tests and several years operational experience with more then 230 of installations all over the world have proved the extraordinary reliability of the ECM system on the vibratory roller under hard conditions. A patented method of measurement allows the achievement of highest user parameters of the device. The producer is constantly in touch with the system users and acquired experience is flexibly projected into the innovation and the extension of the use of the system.

Field tests
Field tests


How works the system ELECTRONIC COMPACTION METER

he basic version consists of three interconnected parts including a vibration sensor mounted on the non-turning part of the vibrating drum, a main processing unit and a console - keyboard and display unit. Two microcomputers contained within the central unit process a signal coming from the vibration sensor, and compute the state of compaction based on the changes of the sensor due to the interaction of the drum and compacted material. The console provides communication between the device and the operator. A large four-digit display and four colour control lights inform the operator about the current state of compaction, the achievement of the required value or indicate the point when compaction degree has ceased to increase which means the work can be finished. A variety of measurements of different types of loose material showed that there was a very tight correlation between the state of compaction indicated by the ECM system and the parameters of loose material measured by standard methods.

Console of ECM
Console of ECM


Capabilities of the system ELECTRONIC COMPACTION METER

CM is truly a flexible system, which satisfies different demands. The non-expensive basic version provides a roller operator with instant information about the state of compaction. The fully equipped system provides an operator, as well as inspectors, with a high degree of comfort allowing them to make well-arranged documents on construction work quality. Another big advantage of this equipment is the possibility to expand the system gradually which spreads the costs of acquiring of the whole system over a longer period of time.

ECMGRAF-WIN - map
ECMGRAF-WIN - map
(click for a more detailed view)
SURFER-TOPO - graph
SURFER-TOPO - graph
(click for a more detailed view)



How to use ELECTRONIC COMPACTION METER system in praxis

Compaction to a required value

A value of the state of compaction, which represents a minimum requirement for the compaction of the area - so-called, preset value -, is stored in the system memory using this method. The value is determined by the compaction experiment on the same material, which will be used on the construction site. The rolling-over during the compaction has to go on until the pre-set value is achieved across the whole area which is indicated by a distinct red control light. Above all, the system indicates the achievement of 50%, 75% and 90% of the pre-set value.

Compaction to a maximum level

A certain type of the roller can be used for compaction of the layer of loose material only to a particular degree of compaction. The increase of compaction then stops and any further passes are ineffective and useless. In addition, an unwanted overcompaction of the layer can occur. The ECM system allows a measurement of the compaction increase between the two subsequent passes of the roller. The work is finished when the compaction has ceased to increase which is indicated by the flashing distinct red light. Thus a perfect compaction of the area can be achieved using a minimum number of passes without a risk of damaging the layer by overcompaction.

Review of significant features of the system ECM - Vibro

MiniPrint
MiniPrint
(click for a more detailed view)

Recorded data in PC
Recorded data in PC


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