SpGravity: Specific gravity measurements

In Rlab: Functions and Datasets Required for ST370 Class

Specific gravity measurements

Description

Data collected by a team of civil engineering students in an attempt to determine if the suggested 24 hour soak time for measuring the specific gravity and absorption of course aggregate (e.g., granite or limestone) was really necessary. They obtained samples of course aggregate from eight quarries and measured three types of specific gravity (BDSG, SSDSG and ASG), and absorption (abs) at five soak times (6, 18, 24, 48, and 72 hours).

Format

A data frame with 40 observations on the following 7 variables.

quarry

: quarry sample was taken from

rock

: type of rock (Granite or Limestone)

time

: soak time (6, 18, 24, 48, or 72 hours)

BDSG

: dry specific gravity

SSDSG

: SSD specific gravity

ASG

: apparent specific gravity

abs

: absorption

Rlab documentation built on May 5, 2022, 1:05 a.m.