Which test can measure soil compaction (density)?

Prepare for the A-5 Excavating, Grading and Oil Surfacing Test with flashcards and multiple choice questions. Succeed with detailed explanations and hints for each question. Ensure your success in the exam!

The nuclear test is a method used to measure soil compaction accurately and efficiently. This technique involves using a nuclear density gauge that emits radiation and measures the moisture and density of the soil. By sending gamma rays into the soil and analyzing the returning signals, it can determine the density of the soil layers at various depths. This method is widely used in construction and civil engineering because it provides immediate results and can be used in the field without needing to take samples back to the lab.

Other methods, such as the Proctor test, are also used for measuring soil density but often require laboratory conditions and the preparation of soil samples. Although the water displacement test can measure volume and can indirectly provide information about compaction, it is not typically employed for practical compaction assessment in the field. Visual inspection may give insights into soil conditions but lacks the precision and reliability needed for accurate density measurements.

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