Design and Evaluation of High Volume Flyash Concrete for Rigid Pavement Overlays
Abstract
Design And Evaluation Of High Volume Flyash Concrete For Rigid Pavement Overlays A well deigned pavement has to perform to its full designed life. Many times premature failure may occur to a well-designed pavement. Any pavement is required to have maximum useful life, with minimum maintenance, and certain structural and functional requirements are to be full filled till the end of design life.
But inadequacy in structural or functional requirements leads to improper functioning and failure of pavement and it is known as “Distress”. Formation of cracking is a distress; it may be due combined action of traffic loads and environmental factors. To maintain structural integrity of pavement, it is essential to prevent or retard these cracks.
Conclusion
Based on the experimental work carried out, and results obtained, the following conclusions are drawn.
- Maximum density is achieved after blending of aggregate analytically by trial and error method
- Optimization of superplastisiser is done by Marsh cone method, obtained as 0.8% for control concrete and it goes on increases with the increase in flyash content. The percentage increase is 0.1% for every 10% increase of flyash.
