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Fill comparative method – a study of strengths as defined by various methods/Muhammad Ammar Nazli

Fill comparative method – a study of strengths as defined by various methods_Muhammad Ammar Nazli_A9_2011_NI

Abstract Tujuan kajian ini dijalankan adalah untuk menkaji kekuatan pelbagai campuran tanah dengan pelbagai ujian kekuatan tanah. 5 ujian kekutan tanah telah digunakan dalam kajian ini bersama dengan 11 sample campuran tanah. 5 ujian tersebut adalah, ujian Proctor, ujian Mackintosh, ujian Penetrasi Kon, ujian Nisbah Galas California dan ujian Ricih Terus. Tanah laterit mempunyai sifat kejelekitan menyebabkannya tidak mudah terurai. Pasir tidak mempunyai sifat jelekit dan mudah terurai. Penggunaan nisbah cmpuran pasir dan laterit merupakan salah satu cara untu memperbaiki kekuatan tanah. Campuran tanah terbaik bagi setiap ujian adalah berbeza kecuali ujian Mackintosh dan ujian Penetrasi Kon. Campuran tanah terbaik bagi ujian tersebut adalah 20%-80% (pasir-laterit). Campuran tanah terbaik bagi ujian Proctor adalah 10%-90% (laterit-sand) manakala bagi ujian NGC, campuran tanah terbaik adalah 100% laterit. Ujian ricih terus pula digunakan untuk menkaji kekuatan ricih tanah. Campuran tanah terbaik bagi ujian Ricih Terus adalah 50%-50% (laterit-sand). Perbezaan campuran tanah terbaik bagi setiap ujian menunjukkan bahawa setiap campuran tanah mempunyai kelebihan tersendiri. Ia bergantung kepada kontraktor atau jurutera untuk memanfaatkn kelebihan tersebut dengan tujuan yang sesuai. Apabila campuran tanah yang sesuai digunakan untuk tujuan yang sesuai dalam proses seperti penambakan jalan raya, ia sekaligus dapat menjimatkan kos dan mengoptimumkan ketahanan penambakan tersebut. ___________________________________________________________________________________ The purpose of this research is to study the various strength methods of various mix ratios. There are 5 strength test used in this study and 11 mix ratios were tested during the test. The 5 test is Proctor test, California Bearing Ratio test, Mackintosh test, Cone Penetration Test and Direct Shear test. Laterite soil is has a cohesive where it is not easy to crumble compared to sand that is non cohesive. The use of different mix ratio is also one of the ways t improve the soils. The best mix ratio in this study is different in each test except for Mackintosh and CPT test where the best soil mix is at 20%-80% (sand-laterite). The best soil mix for proctor test is 10%-90% (laterite-sand) while for CBR test, the best mix ratio is 100% laterite. Direct shear test measures the shear strength of the soil indicate that the best mix ratio in terms of soil strength is at 50%-50% (laterite-sand). The different mix ratio for each test shows that each soil mix has its own advantage compare to others. It up to the contactors or engineers to use the soil mix based on the suitable purpose. When the soil mix is used in a suitable purpose, it can be cost saving. It also can help the engineer to maximize the design capacity of the project based on the strength of the soil improvement.

Contributor(s): Muhammad Ammar Nazli - Author Primary Item Type: Final Year Project Language: English Subject Keywords: laterite soil ; laterite-sand ; road base First presented to the public: 5/1/2011 Original Publication Date: 3/13/2020 Previously Published By: Universiti Sains Malaysia Place Of Publication: School of Civil Engineering Citation: Extents: Number of Pages - 75 License Grantor / Date Granted:   / ( View License ) Date Deposited 2020-03-13 15:34:44.406 Submitter: Nor Hayati Ismail

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