Page 98 - Proceeding The 2nd International Seminar of Science and Technology : Accelerating Sustainable Innovation Towards Society 5.0

nd
The 2 International Seminar of Science and Technology
“Accelerating Sustainable innovation towards Society 5.0”
ISST 2022 FST UT 2022
Universitas Terbuka
3.1 Physical Properties of Peat Soil
To determine the physical properties of the peat soil used in this study,
laboratory tests were used, among others: water content, specific
gravity, and pH.

Table 6. Result of Physical Properties of peat soil.
Location
Soil Parameters Tulung Selapan East Pedamaran
District District
Water content 231,50 301,33
Specific gravity 1,0767 0,4333
pH 3,18 3,93
Fiber content 64,8% 15%

3.2 Compaction Test
In the compaction test, water is mixed with peat soil that passes sieve
analysis no.4. starting from 500 ml, 600 ml, 700 ml, 800 ml, and 900
ml. Then the peat soil is cured for 24 hours. Before pounding it using
a hammer which has a weight of 2500 grams, a drop height of 30.5
inches and the number of strokes per layer is 25 times in 3 layers.
From this compaction process, a soil compaction curve can be
obtained.
1
dry density (gr/cm 3 ) 0.6
0.8

0.4
0.2
0
20
60
40
0
Water content (%) 80 100

Figure 1. Peat Soil Compaction Curve, Tulung Selapan District.

ISST 2022 – FST Universitas Terbuka, Indonesia 77
International Seminar of Science and Technology “Accelerating Sustainable
Towards Society 5.0