01150960

Component

https://doi.org/10.3141/2186-09

http://scholar.google.com...gers&publication_year=2010

Construction factors most correlated to specific mechanical properties of cement-treated base (CTB) layers were identified. Construction factors that exhibit comparatively high variability within individual construction sections of the two pavement reconstruction projects included in this study were determined. In addition, differences between construction sections tested in this research were evaluated. Researchers collected extensive field and laboratory data, which were analyzed using several statistical techniques. The results of this analysis suggest that reduced spatial variability is needed in reclaimed asphalt pavement (RAP) content, cement content, and time between mixing and compaction, which were all identified as important predictors of CTB strength in this study. For full-depth reclamation projects, milling plans should be used to achieve improved uniformity in RAP content, and inspection protocols for encouraging improved control of cement content during construction should be implemented to ensure high-quality work. Compaction should be performed as soon as possible after mixing to minimize the adverse effects of cement hydration on the ability to achieve maximum dry density in the field. Minimizing variability in construction of CTB layers will ultimately lead to higher-quality pavements that more consistently meet design expectations.

01328521

10-2379

English

pp 78-89

2010

Transportation Research Record: Journal of the Transportation Research Board

9780309160599

Print

Photos (2) ; References (13) ; Tables (6)

Asphalt pavements; Base course (Pavements); Cement content; Compaction; Milling; Mixing; Quality control; Reclaimed asphalt pavements; Reconstruction; Road construction

Cement treated bases

Construction; Highways; Materials; Pavements; I52: Construction of Pavements and Surfacings

PRP, TRIS, TRB, ATRI

Jan 25 2010 11:06AM

• Analysis Method for Drilled Shaft–Stabilized Slopes Using Arching Concept
• Characterization of Two-Layer Soil System Using a Lightweight Deflectometer with Radial Sensors
• Combined Use of Calcium Chloride and Fly Ash in Road Base Stabilization
• Cone Penetration Test Sounding and Pile Driving: Case History of I-10 Twin Span Bridges in Louisiana
• Energy Efficiency and Rod Length Effect in Standard Penetration Test Hammers
• Estimation of Resilient Modulus of Subgrade Soils Using Falling Weight Deflectometer
• Evaluation of Characterization and Performance Modeling of Cementitiously Stabilized Layers in the "Mechanistic–Empirical Pavement Design Guide"
• Field Rutting Performance of Various Base and Subbase Materials Under Two Types of Loading
• Implementation of Quality Management of Base Materials with Seismic Methods: Case Study in Texas
• Innovative Soft Soil Stabilization Using Simultaneous High-Vacuum Dewatering and Dynamic Compaction
• Investigation and Implications of Mechanically Stabilized Earth Wall Corrosion in Nevada
• Performance-Based Design of Deep Foundation Systems in Load and Resistance Factor Design Framework
• Post–Soil Interactions on Guardrails Near the Crown of a Slope: Theoretical Aspects
• Resilient Modulus of Clay Subgrades Stabilized with Lime, Class C Fly Ash, and Cement Kiln Dust for Pavement Design
• Soil Stabilization with Bioenergy Coproduct
• Stiffness Characterization of Reinforced Asphalt Pavement Structures Built over Soft Organic Soils