The results of a compaction test on samples of soil that are to be used for an embankment on a highway project are listed below. Determine the maximum dry unit weight of compaction and the optimum moisture content.
What will be an ideal response?
For each sample, calculate the dry density and then plot the results to estimate
maximum dry unit weight and optimum moisture content, as shown below.
Dry density can be calculated using Equation 17.11.
? d = ? / (1 + w)
From the above graph, the maximum dry unit weight of the soil is approximately
136.2 lb/ft3, and the optimum moisture content is approximately 8.0%.
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Answer the following statement true (T) or false (F)
The use of power tools is being discussed. Technician A says to read the operating instructions before using a power tool. Technician B says eye protection must be worn at all times during power tool operation. Who is correct?
A. A only B. B only C. Both A and B D. Neither A nor B
What are some of the key characteristics that can be used to distinguish between an angiosperm and a gymnosperm?
What will be an ideal response?
To elevate their past, imperial Romans joined their history to that of the
a. Persians. b. Egyptians. c. Etruscans. d. Greeks.