The principle and usage method of concrete nucleated density meter

The concrete seedless density meter can measure the density and compaction degree of hydraulic roller compacted concrete and water stable layer at a suitable speed. It is used for measuring the density and humidity of compacted materials, embankment and filling materials, underground passages, basements and foundations, backfilling and ditches, garbage, etc

1. Principle

By using electromagnetic induction technology instead of nuclear source radiation method, users do not have to worry about tedious environmental impact assessment applications, time-consuming training, and strict transportation controls.

. The calibration is simple, the accuracy is good, the repeatability is good, and the touch screen operation allows users to complete relevant operation training in a short time and master the technology of on-site quality inspection. Measure the dielectric properties and density of compacted soil materials through high-frequency radio communication between electrodes, and compare the measured dielectric properties with the "soil module". The 'soil module' is a specific standard for soil types, which has a set of pre measured specific dielectric properties that represent a range of density and humidity values. After the field measurement is completed, mathematical algorithms will be used to calculate the dry/wet density, moisture content, and compaction percentage. The accompanying temperature detector can also increase the accuracy of the measurement

2. Usage:

In the field, use a hammer to insert the conical electrode or marker block into the soil in a cross pattern according to the template. Perform 4 point-to-point measurements between the bottom corners of two conical blocks and average the electrical characteristics. Users can choose to display density and humidity values in metric SI units or imperial units. The scale of javelin insertion directly affects the measurement scale. In addition, the taper of the block is maintained in positive contact with the soil with each hammer strike. The insertion scale of the block determines the measurement scale - there are different lengths to choose from. The EDG display screen can show menu operation steps and save measurement results