hazardous material disposal facility. Check with your
supervisor, safety officer, or hazardous materials
representative for proper procedures.
Q1.
Q2.
Q3.
Q4.
Q5.
Q6.
QUESTIONS
What is the primary purpose of soil-compaction
testing?
When performing a compaction test on a sandy
soil, (a) what mold should you use and (b) how
many tamper blows per layer are required?
What is the overall objective of density testing?
In the sand-displacement method of density
testing, the sand is calibrated to determine its
bulk density. Why must you do this before each
test?
The California bearing ratio (CBR) test
measures the capacity of a soil to resist what type
of force?
Of the cements discussed in the TRAMAN, which
one is most sulphate resistant?
Q7.
Q8.
Q9.
Q1O.
Q11.
Q12.
Q13.
Q14.
Q15.
When the cement paste in a concrete mix does
not bond with the aggregate particles, what is
the probable cause?
When a concrete mix contains an excessive
amount of silt or clay, what surface defect may
occur when the concrete is placed?
As related to aggregate used in concrete, define
the term surface moisture.
What is the primary reason for adding an
air-entraining agent to a concrete mix?
Define the term hydration as it applies to
concrete.
In concrete flexural-strength testing, when
should you use the formula R = 3Pa/bd2?
In what three ways can asphalt be liquified?
To identify an unknown bituminous material
what is the first field test that you should
perform?
To distinguish the type and determine the
approximate grade of an unknown asphalt
cutback, what laboratory test should you
perform?
13-51
