00800128

Component

https://doi.org/10.3141/1714-13

http://scholar.google.com....+HO&publication_year=2000

According to contractors in Florida, construction problems have emerged because pavement soils hold excessive water and are difficult to dry and compact. Recent research on the effects of soil suction and environmental conditions on drying rate characteristics of six types of troublesome granular soils is presented. Two types of tests were conducted for the study: soil suction tests using the thermocouple psychrometer method and drying rate tests using an environmental chamber. The experimental results showed that both the soil suction and relative humidity had direct effects on the soil-drying rate. The drying rate decreased with an increase in soil suction for each soil type and also decreased with an increase in the percentage of fines. The influence of relative humidity on the soil-drying rate was much more significant than the effect of the temperature. The rate of water evaporation was extremely low for the soils with a higher percentage of fines when the relative humidity was high. The A-2-4 soils with greater than 20% of fines may have such a low drying rate in an environment with high relative humidity that they are difficult to handle during construction.

This paper appears in Transportation Research Record No. 1714, Recycled and Secondary Materials, Soil Remediation, and In Situ Testing.

English

p. 98-106

2000

Transportation Research Record

030906693X

Figures (9) ; Photos (2) ; References (6) ; Tables (4)

Drying; Drying rate; Fines (Materials); Granular soils; Humidity; Moisture content; Soil compaction; Soil suction; Soil tests; Subgrade (Pavements); Weather conditions

Florida

Geotechnology; Highways; I42: Soil Mechanics

TRIS, TRB, ATRI

Oct 6 2000 12:00AM

• BEHAVIOR OF A SANDY SILT REINFORCED WITH DISCONTINUOUS RECYCLED FIBER INCLUSIONS
• CHARACTERIZING GRANULAR MATERIAL COARSENESS AND MICROMECHANICAL PROPERTIES WITH A SMALL-DIAMETER PENETROMETER
• CRITICAL REVIEW OF COUPLED FLOW THEORIES FOR CLAY BARRIERS
• ENGINEERING PROPERTIES OF LOESS-FLY ASH MIXTURES FOR ROADBASE CONSTRUCTION
• EVALUATION OF EXCESS FOUNDRY SYSTEM SANDS FOR USE AS SUBBASE MATERIAL
• FIELD AND LABORATORY EVALUATION OF CEMENT KILN DUST AS A SOIL STABILIZER
• FRICTION CORRECTION EQUATION FOR THE DYNAMIC CONE PENETROMETER IN SUBSOIL STRENGTH TESTING
• IN SITU INVESTIGATION OF LIQUEFIABLE GRAVELS
• REMEDIATION AND TRANSFORMATION OF KAOLIN BY PLASMA MAGMAVICATION
• SLOPE STABILIZATION WITH RECYCLED PLASTIC PINS
• UTILIZATION OF CONSTRUCTION AND DEMOLITION DEBRIS UNDER TRAFFIC-TYPE LOADING IN BASE AND SUBBASE APPLICATIONS
• WATER-QUALITY EFFECTS OF TIRE SHREDS PLACED ABOVE THE WATER TABLE: FIVE-YEAR FIELD STUDY