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Flexible Pavement Performance Evaluation Using Deflection Criteria

R. J. Wedner

Flexible pavement projects in Nebraska have been monitored for dynamic deflections, roughness, and distress for six (6) consecutive years. The program provided needed characterization of present surface condition, and data for evaluating rehabilitation needs, including amount of overlay. From analysis of data, factors were isolated for (1) determining structural adequacy of flexible pavements; (2) evaluating existing pavement strength and soil subgrade conditions; and (3) determining overlay thickness requirements. Other objectives satisfied were (1) development of terms for evaluating structural condition for pavement sufficiency ratings, and (2) evaluation of existing soil support value and subgrade strength province maps.

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Flexible Pavement Performance Evaluation Using Deflection Criteria

R. J. Wedner

Flexible pavement projects in Nebraska have been monitored for dynamic deflections, roughness, and distress for six (6) consecutive years. The program provided needed characterization of present surface condition, and data for evaluating rehabilitation needs, including amount of overlay. From analysis of data, factors were isolated for (1) determining structural adequacy of flexible pavements; (2) evaluating existing pavement strength and soil subgrade conditions; and (3) determining overlay thickness requirements. Other objectives satisfied were (1) development of terms for evaluating structural condition for pavement sufficiency ratings, and (2) evaluation of existing soil support value and subgrade strength province maps.

Flexible Pavement Performance Evaluation Using Deflection Criteria

R. J. Wedner

Flexible pavement projects in Nebraska have been monitored for dynamic deflections, roughness, and distress for six (6) consecutive years. The program provided needed characterization of present surface condition, and data for evaluating rehabilitation needs, including amount of overlay. From analysis of data, factors were isolated for (1) determining structural adequacy of flexible pavements; (2) evaluating existing pavement strength and soil subgrade conditions; and (3) determining overlay thickness requirements. Other objectives satisfied were (1) development of terms for evaluating structural condition for pavement sufficiency ratings, and (2) evaluation of existing soil support value and subgrade strength province maps.

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Title:

Flexible Pavement Performance Evaluation Using Deflection Criteria

Contributors:

R. J. Wedner (author)

Publication date:

1980

Size:

121 pages

Type of media:

Report

Type of material:

No indication

Language:

English

Keywords:

Highway Engineering , Nondestructive Testing , Flexible pavements , Test equipment , Bearing tests , Impact tests , Deflection , Vibration tests , Coverings , Maintenance , Soil structure interactions

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