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Evaluation of Lime Stabilized Subgrade (AA-19)

B. W. Meade / D. L. Allen

Construction of Section 19 of the Ashland-Alexandria Highway began in 1987. Because native soils have very low CBR values (1 to 3), it was decided to stabilize the solid subgrade with an application of 6% hydrated lime. The top 6 inches of the subgrade was to be stabilized. This process had not been previously used in Kentucky; and consequently, a research study was initiated to monitor this project. Objectives of the study were to monitor and document construction procedures, to determine the engineering characteristics of the treated subgrade through laboratory testing, and to report on the study findings. A substantial amount of field testing was conducted to confirm and supplement laboratory testing.

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Evaluation of Lime Stabilized Subgrade (AA-19)

B. W. Meade / D. L. Allen

Construction of Section 19 of the Ashland-Alexandria Highway began in 1987. Because native soils have very low CBR values (1 to 3), it was decided to stabilize the solid subgrade with an application of 6% hydrated lime. The top 6 inches of the subgrade was to be stabilized. This process had not been previously used in Kentucky; and consequently, a research study was initiated to monitor this project. Objectives of the study were to monitor and document construction procedures, to determine the engineering characteristics of the treated subgrade through laboratory testing, and to report on the study findings. A substantial amount of field testing was conducted to confirm and supplement laboratory testing.

Evaluation of Lime Stabilized Subgrade (AA-19)

B. W. Meade / D. L. Allen

Construction of Section 19 of the Ashland-Alexandria Highway began in 1987. Because native soils have very low CBR values (1 to 3), it was decided to stabilize the solid subgrade with an application of 6% hydrated lime. The top 6 inches of the subgrade was to be stabilized. This process had not been previously used in Kentucky; and consequently, a research study was initiated to monitor this project. Objectives of the study were to monitor and document construction procedures, to determine the engineering characteristics of the treated subgrade through laboratory testing, and to report on the study findings. A substantial amount of field testing was conducted to confirm and supplement laboratory testing.

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Title:

Evaluation of Lime Stabilized Subgrade (AA-19)

Contributors:

B. W. Meade (author) / D. L. Allen (author)

Publication date:

1993

Size:

62 pages

Type of media:

Report

Type of material:

No indication

Language:

English

Keywords:

Highway Engineering , Soil & Rock Mechanics , Subgrades , Soil stabilization , Calcium oxides , Pavement condition , Highway construction , Highway maintenance , Soil mechanics , Load bearing capacity , Field tests , Clays , Pavement deflections , Geotechnical engineering , Kentucky

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