Download or read book Instrumentation for Moisture Measurement written by Southwest Research Institute and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Instrumentation for Moisture Measurement bases Subgrades and Earth Materials sensor Evaluation written by and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Instrumentation for Moisture Measurement bases Subgrades and Earth Materials sensor Evaluation written by G. A. Matzkanin and published by . This book was released on 1979 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two types of moisture sensors for long term in situ monitoring of moisture in highway subgrade soils have been developed and field tested. One sensor is based on the relationship between the soil moisture and the dielectric constant of the soil which affects the capacitance as sensed by a pair of embedded electrodes. The other sensor is based on the nuclear magnetic resonance of hydrogen of the water molecules in the soil. Results of the evaluation program show that the tested sensors are capable of determining soil moisture content in the range of 20% to 30% with an accuracy in the field of ±2% oven dry moisture content and a precision of ±2% oven dry moisture content. The sensors were evaluated in the field for over a year under in-service highways in Arizona and Pennsylvania, and under a test road at the U.S. Army Cold Regions Research Laboratory in New Hampshire. Periodic comparisons were made among the sensor readings and results of other moisture measurements including nuclear probe and gravimetric analysis of borings. Although some discrepancies were observed among the field results, and the field tests were not conclusive, the data obtained with the newly developed sensors appear to be consistent with the indicated moisture conditions.

Download or read book Instrumentation for Measurement of Moisture written by L. F. Ballard and published by Highway Research Board. This book was released on 1973 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this study was to evaluate the suitability of existing instrumentation and techniques and to stimulate development of modified or new procedures to measure the amount and state of water in highway components, such as embankments, subgrades, base courses, pavements, and structures. In accomplishing this objective, the researchers conducted an extensive literature review. Those techniques that appear to be immediately applicable to highway problems were evaluated using a linear decision model for comparing instrument performance characteristics with specific moisture measurement needs. A comprehensive list of performance characteristics with which to make this comparison was compiled.

Download or read book Impact of Truck Overloads on the Highway Trust Fund written by United States. Congress. House. Committee on Ways and Means. Subcommittee on Oversight and published by . This book was released on 1978 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report written by and published by . This book was released on 1964 with total page 896 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Summary of Progress National Cooperative Highway Research Program written by National Cooperative Highway Research Program and published by . This book was released on 1985 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book R D Highway Safety Transportation System Studies written by United States. Federal Highway Administration and published by . This book was released on 1973 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Public Roads written by and published by . This book was released on 1976 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Highway Transportation Research and Development Studies written by United States. Federal Highway Administration and published by . This book was released on 1971 with total page 958 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Summary of Progress written by National Cooperative Highway Research Program and published by . This book was released on 1979 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Highway Research News written by and published by . This book was released on 1973 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: Issues for 1963- include section: Urban transportation research digest.

Download or read book Directory of the Highway Research Board written by and published by . This book was released on 1973 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Progress Report written by National Cooperative Highway Research Program and published by . This book was released on 2002 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Subsurface Characterization and Monitoring Techniques The vadose zone field screening and analytical methods appendices C and D written by and published by . This book was released on 1993 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Directory written by National Research Council (U.S.). Highway Research Board and published by . This book was released on 1973 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings of the NWWA API Conference on Petroleum Hydrocarbons and Organic Chemicals in Ground Water written by and published by . This book was released on 1985 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt: