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RISSuitability Assessment of Using Lime Sludge for Subgrade Soil Stabilization
Publisher: ASCE
Abstract: Although several studies have been conducted regarding the use of lime sludge (LS) in engineering and agricultural applications, its use for stabilizing subgrade soils has not been fully investigated. In this study, an ...
Cement, Lime, and Fly Ashes in Stabilizing Expansive Soils: Performance Evaluation and Comparison
Publisher: ASCE
Abstract: In this paper, the effectiveness of different chemical stabilizers in improving the engineering properties of expansive soils is investigated. Three different soils with variable sulfate contents were treated with Type ...
Evaluation of the Accuracy of Pavement ME Methodology in Calculating Equivalent Loading Frequency and Its Effect on Strain Response Predictions in Flexible Pavements
Publisher: ASCE
Abstract: The prediction of strain responses under axle loadings is critical for flexible pavement design by the mechanistic-empirical approach. The mechanistic-empirical pavement design (pavement ME) method uses linear-elastic ...
Effects of Fines Content on Hydraulic and Mechanical Performance of Unbound Granular Base Aggregates
Publisher: ASCE
Abstract: The fines content of a granular aggregate base (GAB) material (<0.074 mm) is highly variable and often related to the crushing process, transportation, and stockpiling in a quarry or site. The influence of fines content ...
Effect of Temperature on pH, Conductivity, and Strength of Lime-Stabilized Soil
Publisher: ASCE
Abstract: Lime is often used to increase strength, reduce compressibility, and reduce moisture sensitivity in soils with moderate to high plasticity. In the case of road construction, state agencies typically have specifications ...
Engineering Properties of Biocementation Coarse- and Fine-Grained Sand Catalyzed By Bacterial Cells and Bacterial Enzyme
Publisher: ASCE
Abstract: Biological induced calcite precipitation is a potential method being investigated for improved soil stabilization. In terms of the associated urea hydrolysis concept, three main strategies have been developed over the last ...
Chemically Induced Water Repellency and the Freeze–Thaw Durability of Soils
Publisher: ASCE
Abstract: Organosilane (OS) is a silicon-based coupling agent capable of producing hydrophobicity in soils. This study evaluated the applicability of OS in reducing the freeze–thaw impacts on subgrade soils. A frost-susceptible soil ...
Investigating Problem-Solving Processes of Students, Faculty, and Practicing Engineers in Civil Engineering
Publisher: ASCE
Abstract: Solving ill-structured problems is a complex task that is required of engineers who work in industry. To better prepare undergraduate engineering students for this complex task and their future professional careers, this ...
Accuracy of Pavement ME Methodology in Predicting Strain Responses under Multiple Axle Loadings in Flexible Pavements
Publisher: American Society of Civil Engineers
Abstract: The mechanistic-empirical pavement design method (Pavement ME) uses linear-elastic analysis to calculate the strain responses induced by single and multiple axle loadings, and the method relies on the concept of equivalent ...
Mechanical and Environmental Suitability of Recycled Concrete Aggregate as a Highway Base Material
Publisher: American Society of Civil Engineers
Abstract: The use of recycled concrete aggregate (RCA) materials in highway constructions is economically viable and reduces virgin natural resource demands on the environment. To evaluate their potential use in highway construction, ...