Catalog Search Results
Author
Pub. Date
2020.
Description
Cold recycling technologies such as Full-Depth Reclamation (FDR) are sustainable and cost-effective techniques for pavement rehabilitation. Previous research has found current mechanistic-empirical (M-E) default values to be non representative and overly conservative, leading to an underestimation of the true performance capabilities of FDR materials. To address this gap, this research analyzes the performance of 11 FDR sites constructed throughout...
Author
Pub. Date
2008.
Description
According to BioCycle magazine, Colorado's diversion rate languishes at a low 12.5%. This puts Colorado in the lowest 20% of states in terms of recycling rate, in the company of states like West Virginia, South Dakota, Mississippi, Alabama, and others. States around the country that are finding recycling rates stagnating are looking at options for next steps in energizing diversion progress. This project is designed to explore the State of Colorado's...
Author
Pub. Date
2018.
Description
This study investigates the dynamic modulus of Cold-in-Place Recycling (CIR) pavement material and its performance using pavement performance data, field testing, laboratory testing, and Pavement Mechanistic-Empirical Design Guide (PMED) software analysis. Colorado Department of Transportation (CDOT) has 37 projects with over 8 million square yards using CIR materials. Sites from ten projects were selected to monitor the performances, and collect...
Pub. Date
2012
Description
Electronic equipment like computer monitors, central processing units (CPUs), keyboards, mice, scanners, and cell phones contain a number of hazardous constituents such as lead, mercury, arsenic, cadmium, chromium and silver. Many of these constituents are found on the circuit boards or in the glass. Computers also contain a battery such as nickel-cadmium, lithium or sealed lead acid. These constituents are not a concern while the equipment is in...
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