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Change in strength properties in laterite soil due to changing compaction effort

Change in strength properties in laterite soil due to changing compaction effort / Elia Athika Baharudin
Tapak memerlukan pemadatan sebelum membina struktur, meletakkan turapan jalan, atau kemasan projek pembangunan. Amnya, tanah hendaklah menjadi asas yang kukuh supaya pembinaan boleh dijalankan ke atas tapak ini. Dalam cuaca tropika, tanah liat merah atau tanah merah, yang biasanya terdapat di kawasan yang tinggi ini digunakan untuk mengisi tanah dalam pembinaan. Proses pemadatan umumnya, diperlukan untuk mengukuhkan tanah ini, di mana kekosongan di dalam tanah boleh dikeluarkan atau dikurangkan. Kebiasaannya, kekuatan boleh ditingkatkan dengan meningkatkan berat unit. Oleh itu, keupayaan galas boleh juga ditambah dengan cara ini. Walau bagaimanapun, proses pemadatan di tapak pembinaan dengan ketara boleh meningkatkan perbelanjaan projek terutama apabila ia melibatkan jentera berat seperti penggelek, penggelek bergetar, penggelek kaki kambing biri-biri, dan penekan penggelek-getah nipis. Kajian yang dilaporkan dalam tesis ini mengkaji kepelbagaian daya pemadatan untuk mengkaji pelbagai kesan ke atas pemadatan kepada ciri-ciri tanah yang terhasil yang memberi tumpuan kepada kekuatan yang terhasil dan diukur dengan pelbagai ukuran. Ujian kajian yang terlibat adalah seperti “Modified Proctor”, Nisbah Galas California, “Mackintosh Probe”, Ricih Terus, Kon Penembusan Dinamik, dan Piezocone. Ia telah mendapati bahawa usaha pemadatan yang tidak semestinya sesuai dengan kualiti yang terhasil daripada tanah merah yang dipadatkan. Meningkatkan usaha pemadatan di luar titik optimum tidak semestinya meningkatkan kualiti bahan dipadatkan untuk dipadankan dengan usaha. Ia akan menjadi pembaziran dari segi wang dan usaha di mana pemadatan tidak sesuai dengan kekuatan. _______________________________________________________________________________________________________ A site requires compaction before building a structure, laying the pavement of a road, or finishing a development project. The soil generally should be a solid foundation so that the construction can be carried out on these sites. In tropical weather, the clayey red soil, or laterite, as normally found in high grounds, is normally used as fill soils in construction. Compaction process is generally needed to solidify this soil where the void in the soil can be removed or reduced. The strength can be increased generally by increasing the unit weight. Thus the bearing capacity can also be increased in this manner. However, the process of compaction at construction sites can significantly increase the expenses of a project especially when it involves heavy machinery such as roller, vibratory rollers, sheep foot rollers, and thin rubber-roller tamp. The study reported in this thesis examined the diversity of compaction forces in order to study the various effects on compacting on the characteristics of the resulting soils which is focused on the resulting strength and measured by the various measurements methods. The study involved tests such as the Modified Proctor, the California Bearing Ratio, the Mackintosh Probe, the Direct Shear, the Dynamic Cone Penetration, and the Piezocone. It was found that the compaction effort does not necessarily correspond to the resulting quality of the compacted laterite. Increasing the compaction effort beyond the optimum point does not necessarily increase the quality of compacted material to match the effort. It would be a waste in terms of money and effort where compaction did not correspond to strength.
Contributor(s):
Elia Athika Baharudin - Author
Primary Item Type:
Final Year Project
Identifiers:
Accession Number : 875005519
Language:
English
Subject Keywords:
site; compaction; structure
First presented to the public:
6/1/2015
Original Publication Date:
7/27/2020
Previously Published By:
Universiti Sains Malaysia
Place Of Publication:
School of Civil Engineering
Citation:
Extents:
Number of Pages - 73
License Grantor / Date Granted:
  / ( View License )
Date Deposited
2020-07-27 10:22:56.607
Submitter:
Mohd Jasnizam Mohd Salleh

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