Évaluation : 0 sur 5 étoiles
0 évaluation
Chargement
DR![]()
author
Dindial Ramsamooj
Dr. Ramsamooj’s fields of specialization are fracture mechanics, geotechnical engineering and pavement design. He has published the pioneering papers on the prediction of fatigue cracking and refle...voir plusDr. Ramsamooj’s fields of specialization are fracture mechanics, geotechnical engineering and pavement design. He has published the pioneering papers on the prediction of fatigue cracking and reflection cracking in pavements, and a theoretical solution for predicting the rutting of flexible pavements. He also developed a theory for the interaction of fatigue cracking and rutting in flexible pavements and a new method of stress analysis for multilayered pavements with cracks and joints which is faster than finite element. As a consultant to the U. S. Navy, he developed a new analytical model for fatigue of metals and composites in the feasibility design of the rigid connectors of the U. S. Navy Mobile Offshore Base. These theories have been validated by 594 published concrete beam tests, 53 different mixes for AC and 39 different metals.
Top-down cracking (TDC) in fatigue of AC surfaces has been a mystery all over the world, until Dr. Ramsamooj (2010) discovered the reason for TDC. It occurs whenever the shear stress in the upper 1/3 of the AC layer close to the tire wall exceeds the bending stress at the bottom of the AC layer directly under the wheel load.
Recently he invented a new material for highway and airport pavements, EVAPAVE, which is the strongest and toughest paving material. The new material comprises Ethylene Vinyl Acetate (EVA) plus Paraffin wax and aggregates. The tensile strength is four times stronger than asphalt concrete and twice as strong as high-quality cement concrete. It exhibits an insignificant amount of rutting and a fatigue life of over ten times that of asphalt concrete and seven times that of cement concrete.
The significance of his research lies in the originality and depth of penetration, the combination of theory and practice and the importance to the nation’s infrastructure.voir moins
Livres par Dindial Ramsamooj
Rational Structural Design of Highway/Airport Pavements: New Evapave, the Strongest & Toughest Paving Material