TM
5-822-14/AFJMAN
32-1019
Table 2-1. Guide for selecting a stabilizing additive.
Fahrenheit. Chemical reactions will not occur
ble through repeated freeze-thaw cycles. The im-
rapidly for lime-stabilized soils when the soil
provement should not be achieved at the expense
temperature is less than 60 degrees Fahrenheit
of making the soil more susceptible to ice segrega-
and is not expected to increase for one month, or
tion.
cement-stabilized soils when the soil temperature
c. Construction cutoff dates. Materials stabil-
is less than 40 degrees Fahrenheit and is not
ized with cement, lime, or LCF should be con-
expected to increase for one month. In frost areas,
structed early enough during the construction
it is not always sufficient to protect the mixture
season to allow the development of adequate
from freezing during a 7-day curing period as
strength before the first freezing cycle begins. The
required by the applicable guide specifications,
rate of strength gain is substantially lower at 50
and a construction cutoff date well in advance of
degrees Fahrenheit than at 70 or 80 degrees
2-3
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