Civil Insight: A Technical Magazine Volume 3 | Page 18

Manandhar S. and Karki S.S.
Civil Insight (2019) 15-20
Fig. 3. Graph representing improved UCS value of Ratmate soil (red soil) cured for 28 days
Table 3. Table showing UCS values of Ratmate soil for different cement percentages and curing days
Cement Content (%)
3
5
7
10
3
5
7
10
3
5
7
10
UCS of Ratmate soil (kPa)
208.00
480.57
1179.65
1254.31
783.16
555.69
1265.68
1314.04
918.70
617.48
1506.07
1651.98
1036.24
Curing Period (Days)
0
7
14
28
4) Discussions
In general, improvement of strength of any ground deals with the improvement of maximum dry density of
the soil 䇶㻌degree of compaction or exploitation of existing voids and determining its maximum dry density,
i.e. strength of the soil, whereas optimum moisture content plays a vital role to compact individual particle
of the soils. The Ratmate soil is the type of soil which have more than 36% liquid limit and 26% plastic
limit and 93% fines, which reduces the strength.
The UCS value of tested sample leads to a conclusion that increasing cement content up to optimum
percentage gives better strength. Numerous UCS test results proved that the UCS value of Ratmate soil
before cement treatment was 208.00kPa. However, when treated with cement, the UCS value reached up
to 1766.66kPa, cured for 28 days with 7% cement. The UCS value of the red soil with increasing cement
up to 10% is decreased drastically up to 1035.68kPa. This strongly supports that the cement content only is
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