HIGHWAY PAVEMENT AND MAINTENANCE

Question 1

One of the important components of the entire road system

Answer 1

Road Maintenance

Question 2

Include filling up of pot holes and patch repairs

Answer 2

ROUTINE MAINTENANCE/REPAIRS

Question 3

Include renewal of wearing course of pavement surface

Answer 3

PERIODIC MAINTENANCE

Question 4

Include strengthening of pavement structure or overlay

Answer 4

SPECIAL REPAIRS

Question 5

Defined by formation of pot holes, ruts, cracks, localized depressions and settlement. The localized depression normally is followed by heaving in the vicinity

Answer 5

FLEXIBLE PAVEMENT FAILURE

Question 6

The aging and oxidation of bituminous films leads to

Answer 6

DETERIORATION OF BITUMINOUS PAVEMENTS

Question 7

The cement concrete pavements may develop cracks and deteriorate due to

Answer 7

REPEATED LOADS AND FATIGUE EFFECTS

Question 8

The development of structural crack of break resulting progressive subsidence of some portion of pavement

Answer 8

RIGID PAVEMENT FAILURE

Question 9

One of the prime cause of flexible pavement failure is excessive deformation in subgrade soil

Answer 9

FAILURES IN SUBGRADES

Question 10

due to inherent weakness of the soil itself or excessive moisture or improper compaction

Answer 10

INADEQUATE STABILITY

Question 11

due to inadequate pavement thickness or loads in excess of design value.

Answer 11

EXCESSIVE STRESS APPLICATION

Question 12

applied stress on the subgrade or pavement is very low when compared to its bearing capacity

Answer 12

ELASTIC OR FULLY RECOVERED

Question 13

if the compaction of the layers is not adequate with reference to subsequent loading, part of the deformation may be permanent due to compaction of soil

Answer 13

CONSOLIDATION DEFORMATION

Question 14

if the applied stress is excessive with respect to the stability and if plastic flow takes place as in the case of wet clayey soil

Answer 14

PLASTIC DEFORMATION

Question 15

The most common type of failure and occurs due to relative movement of pavement layer materials

Answer 15

ALLIGATOR (MAP) CRACKING

Question 16

Formation of ruts are mainly attributed to the consolidation of one or more layers of pavement. Repeated application of loads along the same wheel path cause cumulative deformation

Answer 16

CONSOLIDATION OF PAVEMENT LAYERS

Question 17

associated with the inherent weakness of the pavement mixtures, the shearing resistance being low due to inadequate stability or excessively heavy loading

Answer 17

SHEAR FAILURES

Question 18

Due to frost action and differential volume changes in subgrade. Caused in pavement traversing through the full pavement thickness

Answer 18

LONGITUDINAL CRACKING

Question 19

There is mostly a localized heaving-up pavement portion depending upon the ground water and climatic conditions

Answer 19

FROST HEAVING

Question 20

Slipping occurs when the surface course is not keyed/bound with the underlying base.

Answer 20

LACK OF BINDING WITH LOWER LAYER

Question 21

This type of cracking is observed in bituminous overlays provided over existing cement concrete pavements.

Answer 21

REFLECTION CRACKIN

Question 22

observed in cement concrete pavement showing overall deterioration of the concrete

Answer 22

SCALING

Question 23

During the curing operation of cement concrete pavements immediately after the construction.

Answer 23

SHRINKAGE CRACKS

Question 24

When pre-formed filler materials are placed during casting of pavement slabs, the placement is somehow dislocated and filler is thus placed in an angle

Answer 24

SPALLING OF JOINT

Question 25

If the joints are not well designed to accommodate the warping of slabs at edges, this results in development of excessive stresses due to warping and the slab develops cracking at the edges in an irregular pattern

Answer 25

WARPING CRACKS

Question 26

when the soil slurry ejects out through the joints and cracks of cement concrete pavement caused during the movement of slab under the heavy wheel loads

Answer 26

MUD PUMPING

Question 27

needed for any type of road whether it is designed and constructed with scientific bias or not

Answer 27

ROUTINE AND PERIODIC MAINTENANCES

Question 28

needed to prevent pavement failures

Answer 28

SPECIAL REPAIRS AND STRENGTHENING OF PAVEMENT WITH OVERLAYS

Question 29

carried out on the damaged or improper road surface.

Answer 29

PATCH REPAIRS

Question 30

initially fine cracks or hair cracks formed across the slab

Answer 30

TEMPERATURE CRACKS

Question 31

formed near the edge and corner regions of the slabs, due to combined wheel load and warping stresses in the slab

Answer 31

STRUCTURAL CRACKS