Determination of subgrade strength under intact Portland cement concrete slabs for rubblization projects
Title:
Determination of subgrade strength under intact Portland cement concrete slabs for rubblization projects
Author:
Kim, Y. Richard., author.
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Physical Description:
104 pages : illustrations ; 28 cm + 1 computer optical disc
General Note:
"May 2002."
"Report no. FHWA/NC/2002-010."
Contents:
Introduction -- Literature review -- PCC pavement analysis -- Subgrade condition prediction algorithms using ANN -- Performance evaluation of developed procedures -- Conclusions and recommendations for future research -- List of references -- Apppendix A: Estimation of layer condition.
Abstract:
Rubblization is an effective rehabilitation method for deteriorated Portland cement concrete (PCC) pavements. However, the loss of strength in PCC slabs due to rubblization creates the demand for a subgrade that is strong enough to handle traffic after rubblization. The primary objective of this study is to develop an analysis method that allows the realistic estimation of subgrade strength after rubblization from deflection measurement on intact PCC slabs before rubblization. As a forward model, stress/strain dependent nonlinear subgrade models were incorporated into a finite element analysis.
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