Long-Term Plan for Concrete Pavement Research and Technology - The Concrete Pavement Road Map: Volume II, Tracks

Figure 8.

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Figure 8. Bar Chart. Track 8 (LL) subtrack and problem statement phasing chart.

Track 8 (LL) subtrack and problem statement phasing chart.The horizontal bar chart in this figure shows the approximate time phasing of the problem statements in track 8, Long Life Concrete Pavements (LL), grouped by subtrack across 10 years. There are three subtracks in track 8: (1) Pavement Strategy for Long Life Concrete Pavements; (2) Construction and Materials for Long Life Concrete Pavements and Overlays; and (3) Long Life Concrete Pavement Implementation

In subtrack 1 the problem statements are arranged as follows: Problem Statement LL 1.0. Framework for Pavement Strategy for Long Life Concrete Pavements extends from years 1 to 3; Problem Statement LL 1.1. Identifying Long Life Concrete Pavement Types, Design Features, Foundations, and Rehabilitation/Maintenance Strategies extends from years 2 to 5; Problem Statement LL 1.2. Design Catalog for Long Life Concrete Pavements extends from years 2 to 8; and Problem Statement LL 1.3. Strategic Application of Preservation Treatments to Preserve Long Life Concrete Pavement extends from years 3 to 5.

In subtrack 2 the problem statements are arranged as follows: Problem Statement LL 2.0. Framework for Construction and Materials for Long Life Concrete Pavements extends from years 1 to 3; Problem Statement LL 2.1. Development of Quality Control/Quality Assurance Testing Standards to Ensure Long Life Concrete Pavements extends from years 2 to 4; Problem Statement LL 2.2. Identification of Material Requirements and Tests for Long Life Concrete Pavements extends from years 2 to 6; Problem Statement LL 2.3. Design, Construct, and Evaluate Experimental Long Life Concrete Pavements extends from years 3 to 10; and Problem Statement LL 2.4. Design, Construct, and Evaluate Concrete Overlays extends from years 3 to 10.

Subtrack 3 contains only one problem statement: Problem Statement LL 3.1. Implementation of Long Life Concrete Pavements extends from years 1 to 10.

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