AASHTO: AASHTO Soil Classification

Description Usage Arguments Details Value Author(s) References See Also Examples

View source: R/SoilClassification.R

Description

This set of functions classifies soil using the American Association of State Highway and Transportation Officials (AASHTO) Soil Classification System.

Usage

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AASHTO(sieve = NA, size = NA, percent = NA, metric = NA,
       p10 = NA, p40 = NA, p200 = NA,
       LL = NA, PL = NA, PI = NA, NP = NA)
GI(p200, LL, PL = NA, PI = NA)

Arguments

sieve

vector of sieve numbers (according to ASTM D422) in grain-size distribution

size

vector of grain sizes (in or mm) in distribution

percent

vector of percent passing in grain-size distribution

metric

logical variable for grain-size distribution: TRUE for metric units (mm), FALSE for English units (in); only required if "size" is supplied

p10

percent passing #10 sieve

p40

percent passing #40 sieve

p200

percent passing #200 sieve

LL

liquid limit (percent)

PL

plastic limit (percent)

PI

plasticity index (percent)

NP

logical variable indicating whether the soil is nonplastic (TRUE or FALSE)

Details

In the AASHTO function:

In the GI function, either PL or PI must be specified in addition to the required arguments: F and LL.

Value

Author(s)

James Kaklamanos <kaklamanosj@merrimack.edu> and Kyle Elmy <ElmyK@merrimack.edu>

References

American Association of State and Highway Transportation Officials [AASHTO] (1993). "Recommended Practice for the Classification of Soils and Soil-Aggregate Mixtures for Highway Construction Purposes", AASHTO Designtation 145-91, Standard Specifications for Transportation Materials and Methods of Sampling and Testing.

ASTM (2010). "Annual Book of ASTM Standards", Volume 04.08 – Soil and Rock, ASTM International, Philadelphia.

See Also

USCS, grainSize, Plasticity

Examples

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## Example code for AASHTO group classification
AASHTO(p10 = 51, p40 = 30, p200 = 15, LL = 40, PI = 10)

## Example code for AASHTO group index
GI(p200 = 48, LL = 45, PI = 21)

geotech documentation built on May 29, 2017, 11:52 a.m.

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