19-05-2011, 10:38 PM
CONTINUOUSLY REINFORCED CONCRETE PAVEMENT
The important features of continuously reinforced concrete pavement is that a continuous steel reinforcement set into the cement and the the omission of transverse joints other than construction and terminal joints. he volumetric changes developing in the concrete result in the development of numerous hairline cracks developed at random instead of being concentrated in the contraction joints. To ensure the structural continuity and to control the racking of the pavement, the amount of longitudinal reinforcement is determined. The great number of cracks fine enough so as not to allow the penetration of de-icing salts must be allowed to develop. Moreover, the proper aggregate interlock must be ensured so that higher load transfer efficiency can be achieved.
The fact that it needs little or no maintenance is the main argument towards the use of this type of slabs. The savings are direct savings as well as the savings for maintenance though the Initial costs are heftier due to the reinforcement. In the long run of 10 to 15 years the costs are similar to that of ordinary pavement.
get the report here:
http://tac-atc.ca/english/resourcecentre...beau-e.pdf
The important features of continuously reinforced concrete pavement is that a continuous steel reinforcement set into the cement and the the omission of transverse joints other than construction and terminal joints. he volumetric changes developing in the concrete result in the development of numerous hairline cracks developed at random instead of being concentrated in the contraction joints. To ensure the structural continuity and to control the racking of the pavement, the amount of longitudinal reinforcement is determined. The great number of cracks fine enough so as not to allow the penetration of de-icing salts must be allowed to develop. Moreover, the proper aggregate interlock must be ensured so that higher load transfer efficiency can be achieved.
The fact that it needs little or no maintenance is the main argument towards the use of this type of slabs. The savings are direct savings as well as the savings for maintenance though the Initial costs are heftier due to the reinforcement. In the long run of 10 to 15 years the costs are similar to that of ordinary pavement.
get the report here:
http://tac-atc.ca/english/resourcecentre...beau-e.pdf
