NON NUCLEAR SOIL DENSITY GAUGE SDG200

SDG 200

SKU: S-TMSDG200 Categories: ,

Description

SOFTWARE

ELECTRICAL DENSITY GAUGE SOIL DENSITY GAUGE ADVANTAGES OF EDG OVER SDG
The Electrical Density Gauge  reporting software provides complete solution for the acquisition, storing and presentation on the job and calibration data Loading and downloading of data
  • Create Customized reports from downloaded job data
  • Creates reports from downloaded soil model data
  • Upload soil models to any EDG
  • Input proctor data for use in job data or soil model data
  • View maps of test locations, using Google earth
  • Time / Data, GPS stamps for each test
Test data is stored in such a format that anyone can create a custom report or simply use their current report format and import the information from the SDG .mnt file. This method allows for the maximum in flexibility without getting caught in the manufacturers format.
TransTech support can assist in setting up custom reports if needed or desired.

 

LOCATION WITH GPS SYSTEM

ELECTRICAL DENSITY GAUGE SOIL DENSITY GAUGE ADVANTAGES OF EDG OVER SDG
The GPS data can be integrated with Google earth GPS Coordinates The GPS data when integrated with GOOGLE earth give maps of test location
Viewing test results on Google Earth is coming soon.

 

PRE – REQUISITE PARAMETERS

ELECTRICAL DENSITY GAUGE SOIL DENSITY GAUGE ADVANTAGES OF EDG OVER SDG
Actual site soil calibration/ soil model is developed for the soil to be tested resulting in much higher accuracy.

The Electrical density gauge can be used globally any where including India as the local soil can be stores as soil models

The test can not be performed unless input from following standards are made:

  • Particle size distribution – ASTM D 422
  • Standard test methods for liquid limit, plastic limit and plasticity index of soils – ASTM D 4318
This is a very generalized way of calibrating the instrument resulting in large variations
Information from ASTM D422 and ASTM D4318 are universal information used for Soil Classification and to determine suitability. Additionally, Factory default soil set-up files are available through your local distributor in the event no soil information is available.

 

TEST DIAMETER

ELECTRICAL DENSITY GAUGE SOIL DENSITY GAUGE ADVANTAGES OF EDG OVER SDG
The electrical density gauge has 14” standard diameter The soil density gauge has a fixed area of testing – fixed diameter of 11” Larger diameter provides better representation of sample tested results maps of test location
The smaller Diameter makes the SDG easier to transport and use. With the SDG you have only the gauge to carry, no hammers, soil probes or external wires or connectors to carry or misplace. You also don’t need to hammer multiple probes into a well compacted material. Additionally, as the SDG requires multiple measurements to make up a “Test” the effective volume that is measured is the average of the 5 discrete measurements making the sampled volume larger than the sensor itself, and can be adjusted as needed.

TESTING DEPTH

ELECTRICAL DENSITY GAUGE SOIL DENSITY GAUGE ADVANTAGES OF EDG OVER SDG
The Electrical Density gauge is not dependent on un compacted depths. Just use the correct probe depth The SDG is designed for testing of standard 12” un-compacted layer of soil during and after compaction and then the results are used to theoretically interpret density of other depths which WILL be in correct in case the compacted layer is not uniform 12” or less than 12” In India mostly 6” to 8” layers are used for compaction & EDG has the facility for 4”, 6”. 8”, 10” or 12” probes
The SDG was designed to work on a standard lift thickness. This does not mean that it will yield invalid results on other thicknesses. This is determined by the compaction profile which is common to all materials and compaction equipment where the bottom of a layer is nearly as compact as the top. This is assuming good construction practices.

 

MATERIAL PROPERITIES

ELECTRICAL DENSITY GAUGE SOIL DENSITY GAUGE ADVANTAGES OF EDG OVER SDG
The EDG permits testing of clay material by allowing user to make Soil model / Field calibration of specific material
  • Testing of clay material not possible with SDG
  • Reference: A paper available on Transtech web site – www.transtechsys.com
  • (Non – destructive impedance spectroscopy measurement for soil characteristics by sarah E.Pluta1 & John W. Hewitt2)
Suitable for Indian conditions
Although there is no date on the report, it is from 2005 during the initial development of the SDG. This shortcoming has since been resolved.

 

TEST METHODOLOGY

ELECTRICAL DENSITY GAUGE SOIL DENSITY GAUGE ADVANTAGES OF EDG OVER SDG
The EDG measures on the basis of actual practical on site calibration for the soil being tested The SDG measures on the basis of Theoretical, generalized property of soil based or soil classification as per USA condition More accurate compaction result for India specific soil conditions
TransTech has done the work for you by building the “Soil Model” for you based on the Unified Soil Classification System.

 

STANDARDS

ELECTRICAL DENSITY GAUGE SOIL DENSITY GAUGE ADVANTAGES OF EDG OVER SDG
Conforms TO ASTM D 7698 AASHTO in progress The ASTM draft document is not approved by standards committee, hence no standard is given Use a well tested product that is accepted by codes
ASTM Standard is in progress for the SDG. ASTM method does not mean that it is a “Good Method” it only provides one with guidance that “If you follow these procedures, you can expect results of this quality.” Please refer to the Presicion and Bias Section of the standard. While ASTM does allow for standards to be published for the first 5 years without a Presicion statement, the Draft Standard for the SDG does provide such information. ASTM D7698 will not have this information for several years.