《道路与桥梁建筑材料》课程教学课件（PPT讲稿）Pavement Construction Techniques for Hot Mix Asphalt

PavementConstructionTechniguesfor Hot Mix AsphaltProf. dr. ir. Andre A.A. MolenaarTUDelftDelftUniversityofTechnology

1 Pavement Construction Techniques for Hot Mix Asphalt Prof. dr. ir. André A.A. Molenaar

Contents1. Introduction2.Batch plant3. Drum mix plant4.Exhaust gasses and dust5. Transport6. Paving7. Compaction8. Some developmentsAugust31,2025TUDelft

August 31, 2025 2 Contents 1. Introduction 2. Batch plant 3. Drum mix plant 4. Exhaust gasses and dust 5. Transport 6. Paving 7. Compaction 8. Some developments

1. INTRODUCTIONAugust31,2025TUDelftDelft Universityof Technology

August 31, 2025 3 1. INTRODUCTION

ControlovertheentirechainProduction TransportLaydown(onpreparedsurface)CompactionAugust31,2025TUDelft

August 31, 2025 4 Control over the entire chain • Production • Transport • Lay down (on prepared surface) • Compaction

Why Control?August31,2025ATUDelft

August 31, 2025 5 Why Control?

ProductionunitThe production unit must beableto providematerial that satisfies the requirementsaccording to the specifications.This means:Properproportionofcomponents.Proper heating of aggregatesProperheatingofbitumen.Properblending/mixingof materialsAugust31,2025TUDelft

August 31, 2025 6 Production unit • The production unit must be able to provide material that satisfies the requirements according to the specifications. This means: • Proper proportion of components • Proper heating of aggregates • Proper heating of bitumen • Proper blending/mixing of materials

ProductionBasicmaterials.ProductionunitsBatchplantDrummixplantAugust31,2025TUDelft

August 31, 2025 7 Production • Basic materials • Production units • Batch plant • Drum mix plant

Sand, stone and RAPAugust31,2025TTUDelft

August 31, 2025 8 Sand, stone and RAP

aggregate storage bunker

August 31, 2025 9 aggregate storage bunker

August 31, 2025 10