Question

Discussion

1. What will be the approximate value of degree of saturation at
OMC?

2. How does the amount of compaction affect the maximum dry
density

and optimum moisture content of a given soil?

3. What is the use of Proctor’s needle? How is it used for
compaction

control in a field ?

Answer #1

SOIL COMPACTION.
For the compaction control of an embankment, maximum dry
volumetric weight of 20.06gr/cm3 and
Optimum Moisture Content (OMC) of
10% are specified. The quarry material used for
said embankment has a humidity of 5% on site and a
volumetric weight of 1.75 gr/cm3. The
embankment is built in layers 30 cm thick
(considered before compaction).
Calculate:
a) The amount of water in litres/m2
that must be added on site to the quarry material in order to reach
the...

If the value of Gs is 2.7 and water content is 12% and degree of
saturation is 1. Calculate the dry density of this soil. (Assume
the value of unit weight of water)

1. Compute the compactive effort or compaction energy for a soil
sample compacted in a mold with a volume of 1/30 cubic foot which
uses 4 layers to place soil in the mold and compacts each layer
using a hammer with a weight of 10 lbs that is dropped 12 inches
and uses 20 blows per layer. (2 pts) 2. Using the result from
question 1 compare the compaction energy to the Modified Proctor
compaction test and the Standard Proctor...

Compute the compactive effort or compaction energy for a soil
sample compacted in a mold with a volume of 1/30 cubic foot which
uses 4 layers to place soil in the mold and compacts each layer
using a hammer with a weight of 10 lbs that is dropped 12 inches
and uses 20 blows per layer. (2 pts) 2. Using the result from
question 1 compare the compaction energy to the Modified Proctor
compaction test and the Standard Proctor compaction...

Compute the compactive effort or compaction energy for a soil
sample compacted in a mold with a volume of 1/30 cubic foot which
uses 4 layers to place soil in the mold and compacts each layer
using a hammer with a weight of 10 lbs that is dropped 12 inches
and uses 20 blows per layer. (2 pts)
2. Using the result from question 1 compare the compaction
energy to the Modified Proctor compaction test and the Standard
Proctor compaction...

1. Compute the compactive
effort or compaction energy for a soil sample compacted in a mold
with a volume of 1/30 cubic foot which uses 4 layers to place soil
in the mold and compacts each layer using a hammer with a weight of
10 lbs that is dropped 12 inches and uses 20 blows per layer.
2. Using the result from
question 1 compare the compaction energy to the Modified Proctor
compaction test and the Standard Proctor compaction test?...

1. Not all neonicotinoid insecticides are hazardous to bees
owing to a combination of comparatively high LD50s and also use of
low field rates. Which insecticide in the following list would be
the least toxic to honey bees.
a.imidacloprid
b.clothianidin
c.sulfoxaflor
d.acetamiprid
e.2,4-D
f.diuron
g.chlorpyrifos
2. Given the route of exposure scenarios for bees developed by
the EPA for pesticides in its conceptual model for systemic foliar
applied pesticides, what is the single most effective method (or
practice) for ensuring...

1. Name some of the reasons for the commercial importance of
powder metallurgy technology. 2. What are some of the disadvantages
of the PM methods? 3. In the screening of powders for sizing, what
is meant by the term mesh count? 4. What is the difference between
open pores and closed pores in metallic powders? 5. What is meant
by the term aspect ratio for a metallic particle? 6. How would one
measure the angle of repose for a given...

Use Exhibit 12B.1 and Exhibit 12B.2 to locate the present value
of an annuity of $1, which is the amount to be multiplied times the
future annual cash flow amount. Each of the following scenarios is
independent. Assume that all cash flows are after-tax cash flows.
Campbell Manufacturing is considering the purchase of a new welding
system. The cash benefits will be $480,000 per year. The system
costs $2,050,000 and will last 10 years. Evee Cardenas is
interested in investing...

Net Present Value Use Exhibit 12B.1 and Exhibit 12B.2 to locate
the present value of an annuity of $1, which is the amount to be
multiplied times the future annual cash flow amount. Each of the
following scenarios is independent. Assume that all cash flows are
after-tax cash flows.
Campbell Manufacturing is considering the purchase of a new
welding system. The cash benefits will be $480,000 per year. The
system costs $1,850,000 and will last 10 years.
Evee Cardenas is...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 13 minutes ago

asked 24 minutes ago

asked 34 minutes ago

asked 34 minutes ago

asked 46 minutes ago

asked 52 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago