Q1.
Q2.
Table 18-6.—Bituminous Requirements
Open-graded aggregate
Rapid- and medium-curing liquid asphalts RC-250, RC-800, and MC-3000
Medium-setting asphalt emulsion MS-2 and CMS-2
Well-graded aggregate with little or no material passing the No. 200 sieve
Rapid- and medium-curing liquid asphalts RC-250, RC-800, MC-250, and
MC-800
Slow-curing liquid asphalts SC-250 and SC-800
Medium-setting and slow-setting asphalt emulsions MS-2, CMS-2, SS-1, and
CSS-1
Aggregate with a considerable percentage of fine aggregate and material passing
the No. 200 sieve
Medium-curing liquid asphalts MC-250 and MC-800
Slow-curing liquid asphalts SC-250 and SC-800
Slow-setting asphalt emulsions SS-1, SS-1h, CSS-1, and CSS-1h
Medium-setting asphalt emulsions MS-2 and CMS-2
The simplest type of bituminous stabilization is the application of liquid asphalt to the
surface of an unbound aggregate road. For this type of operation, the slow- and
medium-curing liquid asphalts SC-70, SC-250, MC-70, and MC-250 are used.
QUESTIONS
Q3.
What type or types of additive(s) is/are best to use
for stabilizing a soil that has a PI of 30 and
contains 40-percent gravel 45-percent sand, and
15-percent fines?
Q4.
For a soil-cement mixture, what type of soil is
likely to require the highest cement content?
Assume that you are tasked with determining the
cement content needed for a soil-cement mixture
that will be used for a project located at a Marine
Corps camp in South Korea. At a minimum, what
laboratory tests will you need to perform?
You are preparing to do an unconfined
compression test on a soil-cement mixture using
a soil that is 40-percent gravel. What compaction
mold should you use?
18-9
