00715547

Component

http://onlinepubs.trb.org...trr/1995/1504/1504-010.pdf

https://scholar.google.co...ayed&publication_year=1995

This report describes laboratory testing and statistical analysis of the resulting data to determine the effects of aggregate gradation and percent asphalt stabilization on the permeability of asphalt-treated roadway base layers. Three different types of aggregates were tested in the study. They are crushed limestone, crushed granite, and uncrushed river gravel. A top size of 38 mm (1.5 in.) was used for all gradations. Asphalt cement (AC-20 grade) at 2% and 3% was used to stabilize the aggregates. A total of 60 permeability tests were performed using a 15.2 cm (6-in.) diameter permeameter. A statistical method was used to arrive at a first-order multiple regression equation to predict the coefficient of permeability of asphalt-treated bases in the range of 0.2-0.7 cm/sec (500-2,000 ft/day) using the percentage of air voids in the sample, the percentage of asphalt cement used, and the percent by weight of materials that pass the 2.36-mm (No. 8) sieve.

This paper appears in Transportation Research Record No. 1504, Modeling and Model Verification; Testing Pavement Layers and Materials; and Low-Cost Drainage Structures. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

01399829

English

p. 103-111

1995

Transportation Research Record

0309061725

Figures (5) ; References (17) ; Tables (8)

Aggregate gradation; Alluvium; Asphalt; Base course (Pavements); Crushed limestone; Crushed rock; Equations; Forecasting; Granite; Laboratory tests; Multiple regression analysis; Permeability; Soil stabilization; Statistical analysis

River gravel; Stabilization

Data and Information Technology; Geotechnology; Highways; I42: Soil Mechanics

TRIS, TRB

Jan 2 1996 12:00AM

• CENTRIFUGAL MODELING OF LEAKING UNDERGROUND STORAGE TANKS
• DETERMINATION OF DEPTH TO BEDROCK FROM FALLING WEIGHT DEFLECTOMETER TEST DATA
• DETERMINATION OF RESILIENT MODULUS OF SUBGRADES USING BENDER ELEMENTS
• METHODOLOGY FOR FUNCTIONAL DESIGN OF LOW-LEVEL RIVER CROSSINGS IN SOUTH AFRICA
• MODELING FLOWSLIDES CAUSED BY STATIC LOADING
• MODELING THE STABILITY OF SAND FOUNDATIONS DURING EARTHQUAKES
• PORTABLE CROSSINGS FOR WEAK SOIL AREAS AND STREAMS
• RESILIENT PROPERTIES OF LABORATORY COMPACTED SUBGRADE SOILS
• RESPONSE OF PAVEMENT SYSTEMS TO DYNAMIC LOADS IMPOSED BY NONDESTRUCTIVE TESTS
• SHEETPILE CELL FILLING: FINITE ELEMENT MODEL VERIFICATION FOR TWO CASE HISTORIES
• TESTING AND MODELING OF TWO ROCKFALL BARRIERS