Moisture Barrier Effects on Pavement Roughness

Gay, Derek A; Lytton, Robert L.

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Moisture Barrier Effects on Pavement Roughness

1988-08-18
By Gay, Derek A ; Lytton, Robert L.

File Language:

English

Details

Creators:

Gay, Derek A ; Lytton, Robert L.
Corporate Creators:

Texas Transportation Institute. Texas A&M University
Subject/TRT Terms:

Moisture Barriers Pavements Roughness Test Sections
Resource Type:

Tech Report
Geographical Coverage:

Texas ; United States
Corporate Publisher:

Texas Transportation Institute. Texas A&M University
Abstract:

Pavements built on expansive clay are a type of shallow foundation. By their flexural action, they filter out the roughness that develops due to differential moisture change in the subgrade. The moisture change beneath pavements comes in the vicinity of cracks which carry liquid water under hydrostatic pressure to wherever the crack travels beneath a pavement. Thus, the roughness that appears on the surface of pavements reflects the pattern of major water bearing cracks (and other water bearing seams and lenses) that exist in the natural soil.
Format:

PDF
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:b5807476dd631e3144d8a69fb0f07dc25412cb1f7972dde2f8c5c73f53b7346bb4740380ed90299c1aa87add826d4d84473c6064675b8806ca55f80739e4d1ce
Download URL:

https://rosap.ntl.bts.gov/view/dot/81877/dot_81877_DS1.pdf
File Type:

[PDF - 448.82 KB ]

File Language:

English

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