At the end of a day's production, the pavement must be tapered down. Before resuming paving, this taper is cut back to a full-depth, vertical face.
The Asphalt Institute published MS-22 as a practical guide for field personnel, engineers, inspectors, and contractors. While other manuals focus heavily on laboratory mix design (such as MS-2) or pavement thickness design (such as MS-1), MS-22 bridges the gap between engineering theory and field execution. Why Quality Construction Matters
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Having a digital copy on a tablet or smartphone allows inspectors to verify specifications in real-time on the job site. ms-22 construction of quality asphalt pavements pdf
Before any asphalt is placed, adequate preparation is essential. MS-22 emphasizes:
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Quality begins before the first truck arrives. The Federal Highway Administration (.gov) emphasizes that proper material selection is critical. At the end of a day's production, the
If you are looking for the exact , it is a copyrighted manual published exclusively by the Asphalt Institute . You can purchase and download an official digital copy directly through the Asphalt Institute Bookstore.
Overheating damages the asphalt binder, causing it to embrittle. Underheating leads to placement and compaction difficulties in the field.
For long hauls or cool-weather paving, truck beds should be insulated, and tight-fitting tarps must cover the load to prevent surface crusting and temperature drops. While other manuals focus heavily on laboratory mix
Trucks should be loaded in multiple drops (front, back, then center) rather than a single large pile to prevent coarse aggregates from rolling to the ends of the bed. 4. Preparing the Laydown Site
The Asphalt Institute sells MS-22 as a printed book and as a secure PDF through its website (asphaltinstitute.org). The current edition (as of 2025) is typically the 3rd or 4th edition, with revisions reflecting WMA and modern binder grades. Purchasing the official PDF ensures you have the correct, most up-to-date information.
Seals the surface, kneads the aggregates together, and achieves the final target density. Pneumatic (rubber-tired) rollers or oscillating rollers.
4. Accessing MS-22: Construction of Quality Asphalt Pavements PDF