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Factors Affecting The Strength Of Road Base Stabilized With Cement Slurry Or Dry Cement In Conjunction With Full-Depth Reclamation, Paul A. Dixon
Factors Affecting The Strength Of Road Base Stabilized With Cement Slurry Or Dry Cement In Conjunction With Full-Depth Reclamation, Paul A. Dixon
Theses and Dissertations
Full-depth reclamation (FDR) in conjunction with cement stabilization is an established practice for rehabilitating deteriorating asphalt roads. Conventionally, FDR uses dry cement powder applied with a pneumatic spreader, creating undesirable fugitive cement dust. The cement dust poses a nuisance and, when inhaled, a health threat. Consequently, FDR in conjunction with conventional cement stabilization cannot generally be used in urban areas. To solve the problem of fugitive cement dust, the use of cement slurry, prepared by combining cement powder and water, has been proposed to allow cement stabilization to be utilized in urban areas. However, using cement slurry introduces several factors …
Evaluation Of Portable Devices For Monitoring Microcracking Of Cement-Treated Base Layers, Charles A. Hope
Evaluation Of Portable Devices For Monitoring Microcracking Of Cement-Treated Base Layers, Charles A. Hope
Theses and Dissertations
A relatively new method used to reduce the amount of cement-treated base (CTB) shrinkage cracking is microcracking of the CTB shortly after construction. Three portable instruments used in this study for monitoring the microcracking process include the heavy Clegg impact soil tester (CIST), portable falling-weight deflectometer (PFWD), and soil stiffness gauge (SSG). The specific objectives of this research were 1) to evaluate the sensitivity of each of the three portable instruments to microcracking, and 2) to compare measurements of CTB stiffness reduction obtained using the three devices. The test locations included in this study were Redwood Drive and Dale Avenue …