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https://hdl.handle.net/11681/47036| Title: | Evaluation of soil mechanics laboratory equipment : report 13 : feasibility study, microwave oven used for rapid determination of soil water contents |
| Authors: | Gilbert, P. A. |
| Keywords: | Microwave ovens Soil mechanics--Instruments and equipment Soil test specimens Water content determination (Soils) Soil moisture--Measurement |
| Publisher: | U.S. Army Engineer Waterways Experiment Station |
| Series/Report no.: | Miscellaneous Paper (U.S. Army Engineer Waterways Experiment Station) ; no. 3-478; Report 13 |
| Abstract: | The quantity of water present in soils is usually expressed as a percentage of the dry weight of the soil and is known as water content. Typically, water contents are determined by drying moist soils to a constant weight in a 110 ± 5 C° oven for 4 to 16+ hr, depending upon soil type. While this method is simple and accurate, it is slow and occasions often arise when more rapid drying methods are desired. Microwave energy offers a rapid alternative method. However, the amount of microwave energy absorbed is directly proportional to the exposure time, and thus certain precautions are required. This report describes a method of using microwave energy for rapidly determining water contents within 0.5 or less percentage points of those determined by using conventional ovens. |
| Description: | Miscellaneous Paper |
| Gov't Doc #: | Miscellaneous Paper No. 3-478; Report 13 |
| Rights: | Approved for Public Release; Distribution is Unlimited |
| URI: | https://hdl.handle.net/11681/47036 |
| Appears in Collections: | Miscellaneous Paper |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Miscellaneous Paper No. 3-478 Report 13.pdf | 5.29 MB | Adobe PDF |  View/Open |