Chapter 3 Pavement Patching and Repair - wsdot

Sep 1, 2020 — Preferably, the maintenance of pavement should ... Preservation activities generally do not add capacity or structural value, but do ... base and smooth-tread tires are often used for spreading hot plant-mix asphalt in leveling.

LB Asphalt Batch Mixing Plant - LB Asphalt Batch Mix Plant

A Asphalt pavement refers to any paved road surfaced with asphalt. Hot Mix Asphalt (HMA) is a combination of approximately 95% stone, sand, or gravel bound together by asphalt cement, a product of crude oil. Asphalt cement is heated aggregate, combined, and mixed with the aggregate at an HMA facility.

Asphalt Advantages | FAQs

It includes the reprocessing of organic material but does not include energy recovery and the ... Asphalt materials are therefore eminently suitable for use in the construction and ... Q: What is Warm Mix Asphalt (WMA) and what are its benefits?

Transportation Considerations for Asphalt Pavements

Apr 27, 2010 · Asphalt mixes should be placed into the truck bed in a way that minimizes aggregate segregation. Dropping mix from the storage silo or batcher in one large batch creates a single pile of asphalt mix in the truck bed. Larger sized aggregate tends to roll off this pile and collect around the base.


Asphalt cement is the “glue” that holds a hot mix asphalt (HMA) pavement together. It is a viscoelastic material, meaning that it displays both viscous (fluid-like) and elastic (solid-like) charac-teristics. These characteristics are largely temperature dependent, as asphalt cement behaves more like a solid at low

Paving Cost Comparisons: Warm-Mix Asphalt Versus Concrete

What that number does not account for are admixture costs, which can negate a large portion of the fuel cost savings. • Most WMA is produced using water-based ...

Asphalt Pavement Construction | Asphalt Institute

We do not recommend spraying water on freshly laid hot mix asphalt (HMA) in order to cool the mat faster and open to traffic sooner. First, spraying water on the hot mat is not very effective since the water should drain properly on a new surface and only cools the crust temporarily, with the internal HMA temperature not being affected much.

Summary | Mixing and Compaction Temperatures of Asphalt

S U M M A R Y Background The use of modified asphalt binders in hot-mix asphalt has steadily increased over the past several decades. Modified asphalt binders currently make up over 20% of paving grade asphalt sales in the United States, and the percentage continues to grow. However, selecting appro- priate temperatures for handling these ...

Should You Use Warm Mix or Hot Mix Asphalt? - Reliable

Tags: asphalt paving, hot-mix asphalt, Types of Asphalt, warm-mix asphalt. This entry was posted on Friday, July 17th, 2020 at 7:40 pm and is filed under Asphalt Paving. You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed.

Sec 4-39, Asphalt Concrete - Caltrans -

Compensation Adjustment for Hot Mix Asphalt Placed Using ... testing does not verify the contractor's quality control test results, Caltrans testing is used for ...