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| Ordinary
methods for measuring soil compaction do not provide data on the
desired engineering properties for design, such as density versus
stiffness/modulus. In addition, usual methods are slow, labor intensive, dangerous, and/or of uncertain accuracy. As a result, sites are often under-sampled, causing inadequate compaction to go undetected. Or, feedback is received too late for cost effective correction of problem areas. To ensure acceptance and avoid costly rework, designers may over specify and contractors may over compact in order to compensate for the variability of the finished product, resulting in lowered efficiency and unnecessary cost. The Stiffness Tester is a faster, safer, and cost effective means of compaction testing than any other competing method. By instituting a stiffness measurement and quality control program, the standard deviation of soil compaction can be reduced by 30%. A contractor may then use less compactive effort (number of compaction passes), reducing the average soil stiffness by 10%, while maintaining the passing tests at 95%accuracy. Gauge stores measurements that can be transferred to a printer or computer via infrared interface RS232 port. Battery operated. Includes six "D" sized batteries, instructions, calibration accessories and transit case. Dimensions: 11.02" (280mm) diameter x 10" (254mm) tall. |