A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Application of an Electrical Density Gauge for Measuring In Situ Density and Moisture Content
Desirable soil properties can be obtained through densification of soil using compaction. To control the quality of compaction, the sand cone and nuclear density gauge (NDG) are commonly used to measure the in-situ dry density and moisture content of compacted soil. However, the sand cone test is destructive and time consuming while the NDG poses a health hazard because it uses radioactive emissions to measure the density and moisture content of compacted soil. The alternative safer option could be the electrical density gauge (EDG). This study evaluated the repeatability, accuracy and applicability of the EDG using a range of four sandy soils. First, two EDG readings were taken for each test spot, followed by the sand cone in the same location. EDG measurements were then compared to those of the sand cone and oven drying method for dry density and moisture content respectively. Results showed that EDG had good repeatability based on test-retest comparison of the paired values. EDG values for moisture content were consistent with those of the oven drying method. However, EDG measured dry density differed from the sand cone. It was recommended that the EDG be used for moisture content determination and that the density calibration relationship be revised to improve its accuracy.
Application of an Electrical Density Gauge for Measuring In Situ Density and Moisture Content
Desirable soil properties can be obtained through densification of soil using compaction. To control the quality of compaction, the sand cone and nuclear density gauge (NDG) are commonly used to measure the in-situ dry density and moisture content of compacted soil. However, the sand cone test is destructive and time consuming while the NDG poses a health hazard because it uses radioactive emissions to measure the density and moisture content of compacted soil. The alternative safer option could be the electrical density gauge (EDG). This study evaluated the repeatability, accuracy and applicability of the EDG using a range of four sandy soils. First, two EDG readings were taken for each test spot, followed by the sand cone in the same location. EDG measurements were then compared to those of the sand cone and oven drying method for dry density and moisture content respectively. Results showed that EDG had good repeatability based on test-retest comparison of the paired values. EDG values for moisture content were consistent with those of the oven drying method. However, EDG measured dry density differed from the sand cone. It was recommended that the EDG be used for moisture content determination and that the density calibration relationship be revised to improve its accuracy.
Application of an Electrical Density Gauge for Measuring In Situ Density and Moisture Content
Lekea, Angella (author) / Kalumba, Denis (author) / Chebet, Faridah (author)
Fourth Geo-China International Conference ; 2016 ; Shandong, China
Geo-China 2016 ; 43-50
2016-07-21
Conference paper
Electronic Resource
English
Application of an Electrical Density Gauge for Measuring In Situ Density and Moisture Content
| British Library Conference Proceedings | 2016
Evaluation of the electrical density gauge for in-situ moisture and density determination
| BASE | 2015
| British Library Conference Proceedings | 2001
Studies with Nuclear Moisture and Density Gauge
| British Library Online Contents | 2007