Improvement of Bearing Capacity with Cement, Lime and Brick Waste in Soft Soils for Foundation Purposes

The project improves the bearing capacity
with brick waste, cement grout and limewater in soft soils
for foundation purposes in a 10,110.00 m2 area located in Jr.
Humboldt in the district of Chilca due to the large presence
of fine soils in that locality. The population builds
informally on these poor soils without knowing the dangers
that this can cause on their homes. In order to reach the
objective of the investigation, the physical and mechanical
properties of the soil of the district of Chilca were
determined by means of tests of granulometry, specific
weight, consistency limits and direct shear, then the
admissible bearing capacity was found through Terzaghi's
method. It was found that the soil had more than 50% of
fines, being a clayey and silty soil with an average low
bearing capacity of 0.75 kg/cm2. When the soil was treated
with 15% of brick waste, the bearing capacity improved
with a value of 0.82 kg/cm2, with 15% of limewater a value
of 0.85 kg/cm2 was obtained and finally with 15% of
cement grout a value of 0.90 kg/cm2 was obtained, gaining
up to 23.29% compared to the standard sample. Finally,
15% of cement grout was the recommended treatment to be
used because that percentage was the best option to obtain
the highest bearing capacity compared to brick waste and
limewater, but to achieve better results, it is recommended
to use cement grout from 15% onwards.