2. PROBLEMS IN UNSTABILISED SOIL
Expansive soil is risky due to its high compressibility, low shear strength and high
permeability
Expansive soils like black cotton soil always create problems in foundation. The
problems are swelling, shrinkage and unequal settlement
3. WHY WE STABILISE THE SOIL
A. Improves the strength of the soil, thus, increasing the soil bearing capacity
B. Prevent soil erosion or formation of dust
C. In dry and arid weather stabilization is also done for soil water-proofing
D. Improves the workability and the durability of the soil.
E. It is more economic both in terms of cost and energy
4.
5. WHY TO CHOOSE PLASTIC AS SOIL
STABILZER
Transpare
ncy
Soft
When It
Is Hot
Flexibility
Chemical
Resistance
Elastic
Thermal
Resistance
Water
Resistant
Reactivity
With Water
Electrical
Resistance
Flammabili
ty
6. TEST FOR CHECKING OF SOIL
STABILISION
COMPACTION CBR TEST
PLATE LOAD
TEST
18. CONCLUSIONS
• Using plastic bottles as a soil stabiliser is an
economical and gainful utilization since there is
scarcity of good quality soil for embankments and
fills.
• Thus this project is to meets the challenges of society
to reduce the quantities of plastic waste, producing
useful material from non-useful waste materials that
Optimum Amount of Plastic Strips obtain by mixing soil with varying percentages (0.0%, 0.2%, 0.4% etc.) of plastic strips in soil and the 4 day soaked CBR Value is obtained.
Load-settlement graphs for each plate load test were drawn. For each load-settlement graph, the load corresponding to 4mm settlement was noted. The ultimate load and
This is used for finding the bulk density of the soil filled in the tank for plate load test.
The California Bearing Ratio test was also carried out by mixing the soil with optimum moisture content.
While comparing the percentage variations, it is clear that the maximum percentage decrease in settlement is that for the soil mixed with optimum amount of plastic strips. In the case of soil stabilised