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In: Civil Engineering
Q2. A flexible pavement is to be designed based on AASHTO method. The following are the...
Q2. A flexible pavement is to be designed based on AASHTO method. The following are the characteristics of this pavement: R = 90%, S0 = 0.40, Pi = 4.5, Pt = 2.0, SN = 3.5 and Mr (subgrade) = 15,000 psi. (a) If it was decided to use to a base course and an asphalt layer, what will be the thickness of each if you know that the sub-grade CBR = 8, base course CBR = 85, m = 1.0, surface modulus of elasticity = 400,000 psi. (b) How many years this pavement will approximately last, knowing that the average ESAL per year during the design period is 530 000 repetitions.
Solutions
Ally Wells answered 8 months agoRelated Solutions
Q2. A flexible pavement is to be designed based on AASHTO method. The following are the...
Q2. A flexible pavement is to be designed based on AASHTO
method. The following are the characteristics of this pavement: R =
90%, S0 = 0.40, Pi = 4.5, Pt = 2.0, SN = 3.5 and Mr (subgrade) =
15,000 psi. (a) If it was decided to use to a base course and an
asphalt layer, what will be the thickness of each if you know that
the sub-grade CBR = 8, base course CBR = 85, m = 1.0,...
A Portland Cement Concrete (rigid) pavement is to be designed using AASHTO empirical design method. The...
A Portland Cement Concrete (rigid) pavement is to be designed
using AASHTO empirical design method. The pavement should have an
8" granular sub-base having elastic modulus (Esb) of
50x103 psi. The resilient modulus of the subgrade is
5000 psi, and lying just 5 feet above rock strata (bed rock).
(a) Determine the design k value, assuming loss of support
factor (LSF) of 2.
(b) Use the k value obtained from (a) to determine the thickness
of the rigid pavement.
Assume...
Compare between Flexible Pavement Design using Asphalt Institute Methods and AASHTO Design method.
Compare between Flexible Pavement Design using Asphalt Institute
Methods and AASHTO Design method.
Using the AASHTO 1993 Flexible Pavement Design Procedure, design a pavement cross section that will provide...
Using the AASHTO 1993 Flexible Pavement Design Procedure, design
a pavement cross section that will provide 10 years service. The
initial PSI is 4.2 and the final PSI is determined to be 2.5. The
subgrade has a soil resilient modulus of 18,000 psi. Reliability is
95% with an overall standard deviation of 0.4. For design, the
daily truck traffic consists of 400 passes of trucks with two
single axles and 350 passes of semitrailer truck with tandem axles.
The axle...
Design of Rigid pavement for new construction - USING AASHTO METHOD
Design of Rigid pavement for new construction - USING AASHTO
METHOD
Design the flexible pavement using Group index method and California bearing ratio method using the following...
Design the flexible pavement using Group index method
and California bearing ratio method using the following data and
compare the pavements.
Soil portion passing 75 micron sieve = 60%
Liquid limit = 43% and plastic limit = 28%
Area of the plunger = 19.6 cm2
Load at 2.5 mm penetration = 45kg
Load at 5 mm penetration = 68kg
Sub-base CBR = 30%
Base course CBR = 70%
Expected traffic = 900 vehicles per day.
A highway being designed to AASHTO guidelines with a 70 mph design speed, and at one...
A highway being designed to AASHTO guidelines with a 70 mph
design speed, and at one section, an equal tangent vertical curve
must be designed to connect grades of +1% and -2%. If the grades
intersect at station 100+00, determine the stationing of the PVC,
PVT and curve high point for the minimum curve length based pn SSD
requirements.
A rigid pavement is to be designed to provide a service life of 20 years and...
A rigid pavement is to be designed to provide a service life of
20 years and has an initial PSI of 4.4 and a TSI of 2.5. The
modulus of subgrade reaction is determined to be 300 lb/in3. For
design, the daily car, pickup truck, and light van traffic is
30,000; and the daily truck traffic consists of 300 passes of
single-unit trucks with single and tandem axles, and 400 passes of
tractor semi-trailer trucks with single, tandem, and triple...
There is many types of compactors and rollers used in the construction of flexible pavement. mention...
There is many types of compactors and rollers used in
the construction of flexible pavement. mention all the types of
those rollers and compactor and what are the differences between
them and why each type is used for. Take in consideration the
effect of changing in the bitumen viscosity with the decrease in
the mix temperature during construction.
I need new answer please
What are the differences between AASHTO 1993 and Al method? what are the similarities?
What are the differences between AASHTO 1993 and Al method?
what are the similarities?
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