tailieunhanh - Technical Guideline Asphalt Reinforcement for Road Construction

In November 2003 the Road Pavement Forum resolved that a technical working group should be formed to investigate the development of a national guideline (or code of practice) on the use of Asphalt Reinforcement. For the purpose of this study the main functions of Asphalt Reinforcement Interlayer (ARI) is to:prevent or reduce reflective cracking from underlying layers,protect asphalt layers against traffic induced cracking,avoid or reduce development of rutting in asphalt layers. Currently there is a large amount of research being carried out in this field, but there has been very little effective dissemination of the best practice and research results. | ISBN 97B-0-79BÈ-5 fll-5 FtitJiihid ty thí phalt Academy cj ũ C5IR Bjik Ẽ rofTỉiEHt POBmM Ftrtorii 0001 TABLE OF CONTENTS 1 PurpOse and Focus. 1-2 Development of Structure and 2 FUNCTIONS AND BENEFITS OF ASPHALT Introduction. 2-1 Reflective Cracking. 2-2 Asphalt Fatigue and Rut Bearing Interface Bond. 2-5 References . 2-6 3 TYPES AND SELECTION OF REINFORCEMENT Introduction. 3-1 General Considerations. 3-1 References . 3-2 4 EVALUATION OF EXISTING PAVEMENT Introduction. 4-1 Evaluation Techniques . 4-1 The use of ARIs could be considered as an alternative to the use of thick overlays with SAMI . 4-4 Data Collection and References . 4-5 5 DESIGN Background. 5-1 Simplified Design Procedures . 5-1 Practical Design Guidelines. 5-2 Selection of Design Models - COST Other Design Models. 5-4 References . 5-4 6 SPECIFICATION OF Introduction. 6-1 Paving Paving Grids. 6-2 Composite Paving Grids . 6-3 Steel mesh. 6-5 References . 6-6 7 PRACTICAL CONSTRUCTION General Preparation Work Prior to Repair of Defects Prior to Paving . 7-1 Paving Fabrics Grids excluding steel and Woven Mesh Steel Health Safety and Environmental Issues HSE . 7-6 References . 7-8 8 QUALITY ASSURANCE AND MATERIAL Manufacturing Process . 8-1 Delivery to Asphalt Reinforcement Guideline Draft - August .