SCEBs - University of Colorado Boulder

educe the amount of moisture that the blocks could retain and subsequently reduce the
effects of freeze/thaw cycles.
4.2.2. Test Method
4.2.2.1. Soil Description
Samples #11 & #15 were received at the University of Colorado with an initial
moisture content of 8-10% and 10-12%, respectively. Both samples contained very little
detritus such as roots or other organic material. After passing a substantial amount of
each soil through a #4 sieve, the results revealed that both soil samples contained less
than 10% gravel. It was observed that the largest particle size in the soil samples was no
more than one inch. The small amount of waste material present in the soil is beneficial
and will reduce processing costs.
The results from a wet sieve analyses, Atterberg limit tests, and Hydrometer tests
are shown in Table 4.4 through Table 4.9 and Figures 4.10 - 4.12.
Soil #11:
Wet Sieve Analysis Results:
Soil #11: #200 Wet Sieve Results
Total
sample
dry
weight
[g]
Amt. of
sample
retained
by #200
[g]
Amt. of
sample
passing
#200 [g]
%
passing
#200
875.55 177.08 698.47 79.8%
Table 4.4
Atterberg Limits Results:
Sample #11 Atterberg Limits Results
Plastic Limit 15
Liquid Limit 30
Plasticity Index = LL – PL 15
Table 4.5
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