A Practical Approach for the Estimation of Strength and Resilient Properties of Cementitious Materials
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Authors
Rashidi, Mohammad
Ashtiani, Reza S.
Si, Zhiming
Izzo, Richard P.
McDaniel, Mark
Issue Date
2018-05
Type
Article
Language
en_US
Keywords
Alternative Title
Abstract
Cementitious stabilization of granular soils has been proven to be a cost-saving option for the use of material with marginal quality in the construction and rehabilitation of pavement structures. The orthogonal load distribution capacity of the Cement-Stabilized Materials (CSM) is typically characterized by Unconfined Compressive Strength (UCS), Indirect Tensile Strength (IDT), and Resilient Modulus (Mr) tests in the laboratory. The aforementioned parameters and properties are integral components of the analysis and design of pavements with stabilized layers. Due to time and budget constraints, it is impractical for many state agencies to complete the full laboratory characterization protocols to determine all the design input parameters. Therefore, in many cases, the design engineers opt out of laboratory testing and primarily rely on past experience and engineering judgments to assign design input parameters. Such approach compromises the reliability of the pavement life predictions, and can potentially incur unforeseen costs to the travelling public. Therefore, this study was designed to bridge this gap by developing a series of statistically robust relationships between the laboratory achived data to provide an estimate of the design input parameters. To accomplish this objective, a total of 570 stabilized cylindrical specimens were prepared and subjected to UCS, IDT, and submaximal modulus tests at three strength ratio levels. Subsequently, the relationships between the IDT, UCS, and resilient modulus at small-strain and intermediate strain levels were developed in this study. Such relationships can serve as a valuable means for the estimation of the tensile and compressive strength of the CSM for pavement design.
Description
© National Academy of Sciences:
Transportation Research Board 2018
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DOI: 10.1177/0361198118769900
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Citation
Rashidi, Mohammad & Ashtiani, Reza & Si, Zhiming & Izzo, Richard & McDaniel, Mark. (2018). A Practical Approach for the Estimation of Strength and Resilient Properties of Cementitious Materials. Transportation Research Record Journal of the Transportation Research Board. 2672. 10.1177/0361198118769900.
Publisher
Journal of the Transportation Research Board