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Assessing Maintenance Needs:
Maintenance needs can be assessed by a careful inspection of roads at regular intervals, observing defects such as :
The modern method of assessing the riding quality of a road is by a Bump Integrator machine, towed by a vehicle at a speed of 30 Km/hr. The Bump Integrator (BI) value is expressed in mm/Km. The following gives the rough guide for BI value.
Table: Typical bump Integrator Values in mm/Km
A simple method of assessing the condition of a low volume rural road is by means of a Pavement Condition Index (PCI). The PCI value ranges from 1 (Very Poor) to 5 (Very Good) and can be assessed by one of the following methods :
(a) Based on visual inspection
(b) Based riding comfort, when travelling at 50 Km/hr speed
(c) Based on comfortable driving speed possible
Table : PCI Value Based on Visual Inspection
Maintenance of Gravel Roads: The maintenance consists of : filling up of potholes/depressions with fresh gravel and compacting after light sprinkling with water. g
Determine the types of losses of prestress A loss of prestress will affect the stress distribution on a section of the member. It is therefore necessary to estimate the probabl
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Geotechnical project specifications require that the soil's optimum moisture content of 24% be maintained during the roadbed's construction. The field moisture test finds that fi
how can Simulink calculate wave speed of water hammer
WHY RAFTING IS REQUIRED AND WHAT PRECAUTIONS SHOULD BE TAKEN DURING RAFTING? AND WHAT IS THE ALTERNATE OF RAFTING.?
concrete strength
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