Civil Engineering (CE) Exam > Civil Engineering (CE) Questions > As per IRC:37-2012, in order to control subgr...
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As per IRC:37-2012, in order to control subgrade rutting in flexible pavements, the parameter to be considered is
- a)horizontal tensile strain at the bottom of bituminous layer
- b)vertical compressive strain on top of subgrade
- c)vertical compressive stress on top of granular layer
- d)vertical deflection at the surface of the pavement
Correct answer is option 'B'. Can you explain this answer?
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As per IRC:37-2012, in order to control subgrade rutting in flexible p...
As per IRC : 37-2012
Where
N = Number of cumulative standard axle
∈vVertical strain in the subgrade
Where
N = Number of cumulative standard axle
∈vVertical strain in the subgrade
Most Upvoted Answer
As per IRC:37-2012, in order to control subgrade rutting in flexible p...
Subgrade Rutting in Flexible Pavements
Subgrade rutting is a common distress in flexible pavements, which occurs due to the consolidation of the subgrade soil under repeated traffic loads. In order to control subgrade rutting, various parameters need to be considered, as per IRC:37-2012.
Parameter to be considered
The parameter to be considered to control subgrade rutting in flexible pavements is the vertical compressive strain on top of the subgrade.
Explanation
When a vehicle passes over a flexible pavement, the load is transmitted through the layers of the pavement and ultimately reaches the subgrade. The subgrade soil undergoes compression due to the load, and if the soil is weak or poorly compacted, it may undergo excessive deformation or consolidation. This results in rutting on the pavement surface, which can lead to the loss of ride quality and safety issues.
To control subgrade rutting, it is essential to limit the amount of compression or strain that the subgrade soil undergoes. This can be achieved by designing the pavement layers in such a way that the load is distributed over a larger area and the stresses on the subgrade are reduced. The parameter that indicates the amount of compression or strain on the subgrade is the vertical compressive strain on top of the subgrade.
Conclusion
In conclusion, the vertical compressive strain on top of the subgrade is the parameter that needs to be considered to control subgrade rutting in flexible pavements. By limiting the amount of strain on the subgrade, the pavement can be designed to provide better ride quality and longer service life.
Subgrade rutting is a common distress in flexible pavements, which occurs due to the consolidation of the subgrade soil under repeated traffic loads. In order to control subgrade rutting, various parameters need to be considered, as per IRC:37-2012.
Parameter to be considered
The parameter to be considered to control subgrade rutting in flexible pavements is the vertical compressive strain on top of the subgrade.
Explanation
When a vehicle passes over a flexible pavement, the load is transmitted through the layers of the pavement and ultimately reaches the subgrade. The subgrade soil undergoes compression due to the load, and if the soil is weak or poorly compacted, it may undergo excessive deformation or consolidation. This results in rutting on the pavement surface, which can lead to the loss of ride quality and safety issues.
To control subgrade rutting, it is essential to limit the amount of compression or strain that the subgrade soil undergoes. This can be achieved by designing the pavement layers in such a way that the load is distributed over a larger area and the stresses on the subgrade are reduced. The parameter that indicates the amount of compression or strain on the subgrade is the vertical compressive strain on top of the subgrade.
Conclusion
In conclusion, the vertical compressive strain on top of the subgrade is the parameter that needs to be considered to control subgrade rutting in flexible pavements. By limiting the amount of strain on the subgrade, the pavement can be designed to provide better ride quality and longer service life.
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As per IRC:37-2012, in order to control subgrade rutting in flexible pavements, the parameter to be considered isa)horizontal tensile strain at the bottom of bituminous layerb)vertical compressive strain on top of subgradec)vertical compressive stress on top of granular layerd)vertical deflection at the surface of the pavementCorrect answer is option 'B'. Can you explain this answer?
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As per IRC:37-2012, in order to control subgrade rutting in flexible pavements, the parameter to be considered isa)horizontal tensile strain at the bottom of bituminous layerb)vertical compressive strain on top of subgradec)vertical compressive stress on top of granular layerd)vertical deflection at the surface of the pavementCorrect answer is option 'B'. Can you explain this answer? for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about As per IRC:37-2012, in order to control subgrade rutting in flexible pavements, the parameter to be considered isa)horizontal tensile strain at the bottom of bituminous layerb)vertical compressive strain on top of subgradec)vertical compressive stress on top of granular layerd)vertical deflection at the surface of the pavementCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for As per IRC:37-2012, in order to control subgrade rutting in flexible pavements, the parameter to be considered isa)horizontal tensile strain at the bottom of bituminous layerb)vertical compressive strain on top of subgradec)vertical compressive stress on top of granular layerd)vertical deflection at the surface of the pavementCorrect answer is option 'B'. Can you explain this answer?.
As per IRC:37-2012, in order to control subgrade rutting in flexible pavements, the parameter to be considered isa)horizontal tensile strain at the bottom of bituminous layerb)vertical compressive strain on top of subgradec)vertical compressive stress on top of granular layerd)vertical deflection at the surface of the pavementCorrect answer is option 'B'. Can you explain this answer? for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about As per IRC:37-2012, in order to control subgrade rutting in flexible pavements, the parameter to be considered isa)horizontal tensile strain at the bottom of bituminous layerb)vertical compressive strain on top of subgradec)vertical compressive stress on top of granular layerd)vertical deflection at the surface of the pavementCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for As per IRC:37-2012, in order to control subgrade rutting in flexible pavements, the parameter to be considered isa)horizontal tensile strain at the bottom of bituminous layerb)vertical compressive strain on top of subgradec)vertical compressive stress on top of granular layerd)vertical deflection at the surface of the pavementCorrect answer is option 'B'. Can you explain this answer?.
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