Call number:
ZSP-201-80/5
In:
CRREL Report, 80-5
Description / Table of Contents:
This research comprised laboratory testing to determine the properties of asphalt-aggregate mixtures containing three grades of asphalt cements, and analyses to project the performance of pavements containing each of the asphalts, in resisting thermally induced distress and traffic-associated distress. From the results it is concluded that only the softest asphalt cement tested (AC 2.5) would perform satisfactorily in a cold climatic zone. The moderately soft (AC 5) and moderately hard (AC 20) asphalt cements showed little susceptibility to thermal cracking in a moderate and a warm climatic zone, respectively. The AC 2.5 and AC 5 asphalts are not recommended for use in warm climates, however, owing to increased susceptibility to rutting under traffic.
Type of Medium:
Series available for loan
Pages:
vi, 55 Seiten
,
Illustrationen
Series Statement:
CRREL Report 80-5
URL:
https://apps.dtic.mil/docs/citations/ADA082198
URL:
https://hdl.handle.net/11681/9528
Language:
English
Note:
CONTENTS
Abstract
Preface
Introduction
Research setting
Objectives
Materials, mixture designs, and tests
Materials
Mixture design tests
Brazil test
Resilient modulus test
Data analysis Marshall tests
Asphalt grade
Compactive effort
Aggregate type
Data analysis Brazil tests
Indirect tensile strength
Tensile strain
Vertical deformation
Summary of Brazil test results
Data analysis-resilIient modulus.
Comparison of mixture susceptibility to temperature cracking
General asphalt concrete stiffness
Thermal cracking.
Influence of asphalt cement properties
Summary
Comparison of mixture susceptibility to traftic-load-associated distress
Stress/strain analysis
Fatigue damage analysis
Rutting analysis
Strength correlations
Marshall stability and indirect tensile strength
Indirect tensile strength and resilient modulus
Summary
Summary and conclusions
Recapitulation of investigations
Summary of results
Conclusions
Literature cited
Appendix A: Asphalt adggregate mixture properties by Marshall method
Appendix B: Equations for calculating specimen properties from Brazil tests
Appendix C: Calculated displacements, strains and stresses
Location:
AWI Archive
Branch Library:
AWI Library
Permalink
