Isnainiah, Ana Lailatul (2017) Pengembangan dan penyusutan tanah lempung yang distabilisasi dengan kapur akibat perubahan kadar air / Ana Lailatul Isnainiah. Diploma thesis, Universitas Negeri Malang.
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ABSTRAK Isnainiah Ana Lailatul. 2017. Pengembangan dan Penyusutan Tanah Lempung yang Distabilisasi dengan Kapur Akibat Perubahan Kadar Air. Skripsi Program Studi S1 Teknik Sipil Fakultas Teknik Universitas Negeri Malang. Pembimbing (I) Drs. Ir. I Wayan Jirna M.T. (II) Drs. Eko Setyawan S.T. M.T. Kata Kunci pengembangan dan penyusutan tanah stabilisasi kadar air Berdasarkan penelitian pendahuluan diketahui Indeks Plastisitas tanah di Ngawi sebesar 25 03% sehingga tanah tersebut cenderung memiliki sifat mekanis tanah yang terganggu. Tanah yang terganggu ditandai dengan pengembangan dan penyusutan tanah akibat perubahan kadar air. Oleh karena itu untuk memperbaiki sifat kembang susut tanah tersebut salah satu alternatif yang baik dilakukan dengan cara stabilisasi tanah. Penelitian ini diharapkan dapat (1) Mengetahui perubahan karateristik tanah lempung Ngawi yang distabilisasi dengan penambahan kapur sebesar 0% 10% 20% 30% dan (2) Mengetahui besarnya perubahan volumetrik pengembangan dan penyusutan tanah yang distabilisasi kapur dan pengaruh perubahan kadar air tanah. Penelitian ini menggunakan pendekatan deskriptif kuantitatif dengan penelitian eksperimental. Tahapan penelitian meliputi (1) Pengujian sifat fisik tanah dan (2) Pengujian pengembangan dan penyusutan. Pengujian sifat fisik tanah terdiri dari uji batas cair batas plastis dan indeks plastisitas. Pengujian pengembangan dan penyusutan diukur dengan menggunakan jangka sorong dan dilakukan uji besarnya kadar air pada tiap sampel benda uji. Hasil penelitian ini menunjukkan (1) Semakin besar persentase penambahan kapur maka karakteristik tanah semakin baik dengan persentase kapur sebesar 0% menghasilkan nilai IP 25 03%. Perubahan secara signifikan terjadi pada IP tanah setelah penambahan kapur 30% sebesar 3 07%. (2) Semakin besar penambahan persentase kapur pada tanah perubahan volumetrik dari pengembangan maupun penyusutan tanah cenderung berkurang. Nilai pengembangan volumetrik pada persentase kapur 0% sebesar 9 671% dengan kadar air sebesar 27 756%. Selanjutnya distabilisasikan dengan persentase kapur 30% menghasilkan nilai kembang volumetrik tanah sebesar 4 145% dengan kadar air 17 473%. Sedangkan penyusutan nilai volumetrik pada persentase kapur 0% sebesar 12 546% dengan kadar air 28 579%. Namun setelah penambahan persentase kapur 30% penyusutan volumetrik sebesar 8 424% dengan kadar air 21 793%. ABSTRACT Isnainiah Ana Lailatul. 2017. Swelling and Shrinkage of Stabilizated Clay Soil with Limestone Effected by The Change of Water Content. Minorthesis Civil Engineering Department Faculty of Engineering State University of Malang. Advisors (1) Drs. Ir. I Wayan Jirna M.T. (2) Drs. Eko Setyawan S.T. M.T. Keywords swelling and shrinkage of clay stabilization water content. Based on preliminary research known index of plasticity in Ngawi amounted to 25 03% so the soil tends to have mechanical properties of the soil. Disturbed land is characterized by the development and depreciation of the soil due to changes in water content. Therefore to improve that soil shrinkage characteristic one of the best alternatives is by soil stabilizing.The purpose of this research are (1) to know the change of characteristic of stabilized Ngawi clay soil with limestone addition by 0% 10% 20% 30% and (2) To know the change of swelling and shrinkage volumetric wich stabilized by limestone and influence of water content. This research uses quantitative descriptive approach with experimental research. Research stages include (1) Testing of soil physical properties and (2) Testing development and depreciation. Tests of soil physical properties consist of liquid limit test plastic limit and plasticity index. Testing of development and depreciation is measured using the vernier caliper and test the water content in each sample of the specimen. The research of the study include (1) The increase percentage of limestone addition can make a good soil characteristics. 0% of limestone can resulted 25.03% of IP value. The change occurred significantly after the addition 30% of limestone wich result 3.07% of IP value. (2) The increase of limestone on the soil is the tendency of reduced volumetricity of the swelling and shrinkage of the soil. Volumetric swelling value on 0% of limestone is 9 671% with 27 756% of water content. Furthermore it was stabilized with a percentage of limestone 30% yielded volumetric soil value of 4.145% with water content of 17.473%. While the depreciation of volumetric value on percentage of limestone 0% equal to 12 546% with water content 28 579%. However after adding the percentage of limestone 30% volumetric shrinkage of 8.424% with water content of 21.793%.
| Item Type: | Thesis (Diploma) |
|---|---|
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) |
| Divisions: | Fakultas Teknik (FT) > Departemen Teknik Sipil (TS) > S1 Teknik Sipil |
| Depositing User: | library UM |
| Date Deposited: | 23 Aug 2017 04:29 |
| Last Modified: | 09 Sep 2017 03:00 |
| URI: | http://repository.um.ac.id/id/eprint/45353 |
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