This study aims to quantify and compare the life-cycle environmental, economic and social impacts of two pavement materials: namely 10mm Asphalt Rubber Stone Matrix Asphalt (ARSMA10) and 10mm Polymer Modified Stone Matrix Asphalt (PMSMA10). To achieve this objective, a comparative sustainability framework was developed by: 1) combining the Life Cycle Assessment (LCA) with pavement maintenance p...

Transportation agencies build statistical models and predict the average crash frequency to identify hazardous road sections make informed decisions reduce crashes. In this paper, safety performance (SPFs) were built evaluated considering various pavement roadway characteristics, including friction, which is seldom available for analysis. Four count data models—Poisson model, negative binomial ...

After thermal braising and magnetic separation, steel slag is often ground into powder (SSP), which contains active silica (SiO2) can be used as a cementitious material to replace part of the cement applied in concrete. However, there have been relatively few studies on influence SSP performance pavement concrete (PCC). In this paper, was an admixture paste, mortar, PCC, investigate effect flui...

The Joint Transportation Research Program serves as a vehicle for INDOT collaboration with higher education institutions and industry in Indiana to facilitate innovation that results in continuous improvement in the planning, design, construction, operation, management and economic efficiency of the Indiana transportation infrastructure. NOTICE The contents of this report reflect the views of t...

1. A strain of pure epithelial cells was obtained from the part of the iris which adheres to the extirpated lens. 2. The optimum condition under which epithelial cells grow in vitro is on the free surface of the plasma clot under a film of embryonic tissue juice. 3. The epithelial cells did not dedifferentiate. Although the strain is 3 months old, they grow as a pavement membrane and have kept ...

Document summarizes a procedure to establish pay factors for asphalt concrete pavement construction using performance models for fatigue and rutting based on the analysis of accelerated pavement tests from the Caltrans Heavy Vehicle Simulator (HVS) and the WesTrack accelerated pavement performance test program. Results of the performance-based approach are compared with pay factors determined b...

The Long Term Pavement Performance (LTPP) program is a 20-year study of inservice pavements across North America. Its goal is to extend the life of highway pavements through various designs of new and rehabilitated pavement structures, using different materials and under different loads, environments, subgrade soil, and maintenance practices. LTPP was established under the Strategic Highway Res...