Comparative evaluation of subgrade resilient modulus from non-destructive, in-situ, and laboratory methods : technical summary report.

Gaspard, Kevin

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Comparative evaluation of subgrade resilient modulus from non-destructive, in-situ, and laboratory methods : technical summary report.

2008-09-01
By Gaspard, Kevin

File Language:

English

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Creators:

Gaspard, Kevin
Corporate Creators:

Louisiana Transportation Research Center
Subject/TRT Terms:
Publication/ Report Number:

LTRC Report 417
Resource Type:

Booklet/Pamphlet
Geographical Coverage:

Louisiana
Corporate Publisher:

Louisiana Transportation Research Center
Abstract:

The Resilient Modulus (Mr) of pavement materials and subgrades is an important input ; parameter for the design of pavement structures. The Repeated Loading Triaxial (RLT) test ; typically determines Mr. However, the RLT test requires well trained personnel and expensive ; laboratory equipment in addition to being relatively time consuming. Therefore, highway ; agencies tried to seek different alternatives. Various empirical correlations have been used to ; predict Mr in the last three decades. Such correlations include parameters such as the soil ; support value (SSV), the R-value, and the California bearing ratio (CBR). In addition, different ; in-situ tests were used to develop models for the estimation of Mr of different pavement ; materials. These tests are characterized by the ease of operation and their ability to assess the ; structural integrity and estimate the elastic moduli of in-situ pavement layers. They have an ; additional advantage of being able to assess the pavement structure without destroying it.
Format:

PDF
Download URL:

https://rosap.ntl.bts.gov/view/dot/22347/dot_22347_DS1.pdf
File Type:

[PDF - 26.34 KB]
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:b9cdb783ccff3b72cd704204c06fb24d37e5279cc5259501e1c67b70d7cf59bf07841eb6d6c35e2d7cfc110c658ebf3f07ab6714aa292cc1b87ce99fa97b3d30

File Language:

English

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