If the load, warping and frictional stresses in a cement concrete slab are 210𝑁/𝑚𝑚², 290𝑁/𝑚𝑚² and 10𝑁/𝑚𝑚² respectively, the critical combination of stresses during summer mid-day is

Consider the following statements in the context of cement concrete pavements.

I. Warping stresses in cement concrete pavements are caused by the seasonal variation in temperature.

II. Tie bars are generally provided across transverse joints of cement concrete pavements. The correct option evaluating the above statements is

Given that r=radius of load distribution E=modulus of elasticity of concrete K=modulus of subgrade reaction μ=Poissons’s ratio of concrete h=thickness of slab P=wheel load

The combination of parameters required for obtaining the radius of relative stiffness of cement concrete slab is

Which one of the following factors are used for calculating warping stresses at the critical edge region in rigid pavement design?

1) Maximum temperature difference between summer and winter

2) Co efficient of thermal expansion of concrete

3) Slab length

4) Slab width

Select the correct answer using the codes below.

Which one of the following sets of factors is related to design of thickness rigid pavement by Wesstergaard method?

Which one of the following is the set of physical requirements of coarse aggregates for construction of WBM roads as per IRC recommendation?

LAV(%) AIV(%) FI(%)

The general requirement in constructing a reinforced concrete road is to place a single layer of reinforcement

•In camber portions, rolling shall begin from the edges gradually progressing towards the center.