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Full-Text Articles in Civil and Environmental Engineering
Performance-Related Specifications For Concrete Bridge Superstructures, Volume 2: High-Performance Concrete, J. Olek, Aijsing Lu, Xiuping Feng, Bryan Magee
Performance-Related Specifications For Concrete Bridge Superstructures, Volume 2: High-Performance Concrete, J. Olek, Aijsing Lu, Xiuping Feng, Bryan Magee
JTRP Technical Reports
This is Volume 2 of the Final Report for the project titled “Performance-Related Specifications for Concrete-Bridge Superstructures” dealing with the topic of High-Performance Concrete (HPC). The investigation of high-performance concrete included the development of optimized concrete mixtures and identifying their performance characteristics related to durability for the purpose of using these characteristics in performance–related specifications in the state of Indiana. The research effort described in this report was divided in two phases. Phase I was focused on development of concrete mixtures optimized with respect to selected performance-related parameters. During this phase, ten optimum concrete mixes have been identified from 45 …
Cementitious Stabilization Of Soils In The Presence Of Sulfate, Lan Wang
Cementitious Stabilization Of Soils In The Presence Of Sulfate, Lan Wang
LSU Doctoral Dissertations
Winn Rock (anhydrite, CaSO4) comes from a quarry in Winn Parish in north Louisiana. Gravel from the quarry has been used extensively as a surface course on local parish and logging roads. Stabilization of these roads with Type I Portland cement followed by an overlay by asphaltic concrete sometimes resulted in heaving. The causes for heaving and possible solutions were investigated. In the laboratory 2" x 4" molds of Winn Rock containing soil were prepared and cured in water bath at 40°C, sealed plastic bag at room temperature, and air. Molds were prepared with 5% to 20% cementitious material. The …