Superpave Overview
“Superpave” is an overarching term for the results of the asphalt research portion of the 1987 – 1993 Strategic Highway […]
flexible
Batch Plant & Mix Design
Batch Plant The asphalt originated from Lakeside Industries’ drum plant (see Figure 1) in Issaquah, WA which is approximately 20 […]
1993 AASHTO Flexible Pavement Structural Design
Empirical equations are used to relate observed or measurable phenomena (pavement characteristics) with outcomes (pavement performance). This article presents the […]
Flexible Pavement Mechanistic Models
Mechanistic models are used to mathematically model pavement physics. There are a number of different types of models available today […]
A Mechanistic Computer Program
PAVEXpress also covers Mechanistic Pavement Design! https://www.pavexpress.com
HMA Recycling
HMA is one of the most recycled products in the U.S. It is estimated that about 90 million tons of […]
Superpave Gradation Requirements
Superpave mix design specifies aggregate gradation control points through which aggregate gradations must pass. These control points are very general […]
Perpetual Pavements
“Perpetual Pavement” is a term used to describe a long-lasting structural design, construction and maintenance concept for HMA pavements. If […]
Mix Type Selection Example
This example is taken from Example 3 of the NAPA HMA Pavement Mix Type Selection Guide. It shows how two […]
HMA Plant Operations
HMA production is the first step in construction. The basic purpose of an HMA plant is to properly proportion, blend, […]