  Most of the damaging geo-hazards recorded in modern history are caused by
soil swelling or expansion. Therefore, proper evaluation of a soils capacity to
swell is very crucial for the achievement of a secure and safe foundation for
civil infrastructure. Hence, in this brief, a dataset of standardised
one-dimensional soil swelling on laboratory engineered and natural soils is
reported. Corresponding properties of these soils such as moisture content,
void ratio, specific gravity, unit weight, Atterberg limits, size fractions,
soil activity index including the state of compaction of the soils where
applicable, are also presented. The dataset is made up of a total of 395 data
on soil swelling potential are reported. With regards to the corresponding soil
properties, a total of 219 data records of soil specific gravity, 321 data of
initial moisture content, 163 data of void ratio, 273 data of dry unit weight,
347 data of liquid limit, 347 data of plastic limit, 395 data of plasticity
index, 209 data of activity index, 339 data of clay content, 174 data of silt
content, 246 data of optimum moisture content, 228 data of maximum dry density
and 347 data of Unified Soil Classification System (USCS). The procedures
followed for the determination of soil swelling and related soil properties are
mostly contained in American Standards for Testing of Materials (ASTM D 4546,
ASTM D 698, ASTM D 1557 and ASTM D698), American Association of State Highways
Transport Officials (AASHTO T 258 and AASHTO-T99) and Turkish Standards
(TS1900). Finally, the dataset described herein are intended to aid
geotechnical engineers and researchers who are involved in statistical
correlation studies, data analytics, machine learning predictions using soft
computing methods mostly aimed at evaluating soil expansion especially during
the preliminary phases of soil investigation and foundation design.
