A rural principal arterial is expected to carry an
ESAL of 0.188 × 10^6 during the first year of

operation with an expected annual growth of 6% over the 20-year
design life. If the subgrade has a

resilient modulus of 15,000 lb/in2, design a suitable pavement
consisting of a granular subbase with a

resilient modulus of 13,500 lb/in2, a granular base layer with a
resilient modulus of 25,000 lb/in2, and

an asphalt concrete surface with an elastic modulus of 400,000
lb/in2. Assume all mi values = 1 and

the percent of traffic on the design lane is 47%. Assume a
reliability level of 95%, the design

serviceability loss is 2.0, and standard deviation of 0.4.

In: Civil Engineering

How will you design the foundation of a structure in Swelling soil.

In: Civil Engineering

6) WHAT ARE THE DIFFERENCES BETWEEN CHEMICAL and MINERAL ADMIXTURES?

In: Civil Engineering

a) A highway design includes the intersection of a +4.8% grade with a -4.2% grade at station 1052+75 at elevation 851.50 feet above sea level. Calculate the center-line elevation along this highway for every 50-ft station on a parabolic curve of 600 feet length.

b) What is the minimum stopping sight distance on this vertical
curve and the maximum safe speed on this section of road for wet
pavement

In: Civil Engineering

An unvented kerosene heater is operated for 1 hour in an apartment building having a volume of 300 m3. The heater emits SO2 at a rate of 50 ug/s. The ambient air concentration and the indoor air concentration of SO2 are 80 ug/m3. If the rate of ventilation is70 liters/s and the apartment is assumed to be well-mixed, what is the indoor air concentration of SO2 at the end of 1 hour? Assume a first order decay rate using Table 7.14 in the textbook.

In: Civil Engineering

A 500 feet equal tangent vertical curve connects two tangents
that intersects at station 5+34.00 and elevation 1210 ft. The
initial grade is +4% and the final grade is -2.5%.

i. determine the station and elevation of the high point, PVC and
PVT

ii. What will you recommend as the maximum safe design speed for this road to provide adequate stopping sight distance?

In: Civil Engineering

The results of a tensile experiment on a metal is given in the table below. The tensile sample had circular cross section with the diameter of 10 mm and initial gauge length of 60 mm. Use this table and calculate:

Force (N) | Measured Length (mm) | Region |

0 | 60 | Elastic |

15708 | 60.15 | Elastic |

31416 | 60.3 | Elastic |

35343 | 60.6 | Plastic |

36128 | 61.2 | Plastic |

36914 | 63 | Plastic |

37306 | 66 | Plastic |

(a) The Young modulus of this metal (in GPa)

(b) The modulus of resilience (MJ/m3 )

(c) The measured diameter of the sample is 9.5mm when the applied force is 37306N. What is the Poisson’s ratio?

(d) What is the engineering stress and strain, as well as the true stress and strain at the applied force of 37306N?

In: Civil Engineering

1- How to calculate the quantity of cement and aggregates for
1 metre cubic concrete for any mix ratio?

2-How to determine compressive strength of the concrete?

In: Civil Engineering

In Civil Engineering:

The beginning of a roadway curve is called the ______

The end of a roadway curve is called the ______

In: Civil Engineering

**Answer the given statements as True or False. If the
statement is false, correct it so it becomes a true
statement.**

1. The neutral axis can be found at a distance ‘y’ (where
y>0) from the centroidal axis of a

member.

2. The centre of curvature can be found at a radial distance
(rho) from the neutral axis of a

member in pure bending.

3. When developing generalized equations for stress
transformations, we must consider

stresses on only the horizontal and vertical faces.

4. Shear strain is defined as the angle between two line
segments that were originally parallel

to each other.

5. In biaxial bending, the principle of superposition can be
used to add bending components

about more than one principal axis.

6. When determining average shear stress along a horizontal
section, we are to assume a

uniform and linear shear stress distribution.

7. In beams, to express internal moments and shears, positive
sign convention on the face to

the right of the cut section with internal shear represented as a
downward force (V) and

internal moment (M) represented as a counter-clockwise moment.

8. In Mohr’s circle, the average stress of the element is at the center of the circle.

9. Shear stress components of adjacent planes are equal and opposite.

10. Buckling is a sudden large displacement parallel to the direction of loading.

In: Civil Engineering

introduction about engineering negligence not less than one page

In: Civil Engineering

A structure constructed near to the water body experiencing an anticipated load of 1.25 x106 N. The load coming on to the foundation do not includes the weight of pile cap. Founding subsoil contains a layer of clay 5.0 m deep from the ground surface followed by some loose soil. As a Geotechnical Engineer, design the most suitable friction pile group considering the following factors: Factor of safety against shear failure = 2.5 Unconfined compressive strength of clay = 0.060 N/ mm2 Radius of individual pile = 200 mm Weight of pile cap = 200000 N

In: Civil Engineering

**Civil Engineering (Geo-Polymer Concrete)
Summary:**

Do some researches & write one or two page of summary report on design and uses of

geo-polymer concrete. Focus attention on the mix design, and specific uses. Include the Work

cited if it’s possible.

In: Civil Engineering

**Civil Engineering (Geo-Polymer Concrete)
Summary:**

Do some researches & write one or two page of summary report on design and uses of

geo-polymer concrete. Focus attention on the mix design, and specific uses. Include the Work

cited if it’s possible.

In: Civil Engineering

write importance of geology to civil engineer, maps,

and mapping techniques for geologic structures.
Minimum five citations are required and the

same should be reflected in the references

In: Civil Engineering