Laboratory test to determine the suitability of soil for backfill /
Syaiful Izman bin Bahrun
- Kuantan, Pahang : UMP, 2007
- xiv, 91 p. : col. ill. ; 30 cm.
Project paper (Bachelor of Civil Engineering) -- Universiti Malaysia Pahang - 2007
Backfill is a part of major activities on earthwork especially in civil engineering work. Usually, it was carried out after excavation work or cut and fill process to obtain the proposed ground level (PGL) needed for the construction. The example of backfill work is such as in ground foundation and retaining wall construction. The criteria for backfill work such as material used and cost must be taken into consideration. In general, the presence of fmes material in the backfill area indicates the potential for long-term settlement. The analysis of laboratory assessment results are used to determine the soil classification in accordance to British Soil Classification System (BSCS) and also the suitability of soil for backfill according to specification stated on Jabatan Kerja Raya (JKR). In this project, three fme soil samples were used and labeled as soil sample A, B, and C. Each sample was taken at Jalan Persekutuan 2, KM 19, KM 25, and KM 35 Jalan Pekan to Kuantan respectively. This soil samples tested at the laboratory in accordance to BS 1377: 1990:Part 2 for soil classification. All the results obtained from the laboratory test will be referred to BS 5930 for classification purposes and also JKR specification for determining the suitability of the soil sample for backfill. The soils sample A, B, and C was classified as sandy SILT of high plasticity, sandy CLAY of high plasticity, and organic sandy SILT of high plasticity respectively. Meanwhile for the suitability for backfill, only soil sample A and B suitable for backfill. Soil sample C containing large amounts of roots, grass and other vegetable matter make it unsuitable for backfill. -Author