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Pengaruh Kadar Air Awal Dan Surcharge Pressure Pada Uji Karakteristik Pengembangan Tanah Ekspansif Diana, Wilis; Hartono, Edi; Widianti, Anita
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 23, Nomor 2, DESEMBER 2017
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (404.448 KB) | DOI: 10.14710/mkts.v23i2.15985

Abstract

Expansive soils experience volumetric changes due to water content changes. These volumetric changes cause swell and shrink movement in soils, which in turn will inflict severe damage to structures built above them. A Proper understanding of how the expansive soil behaves during the wetting/drying process is essential for assessing the mitigation action of expansive soil hazard and design suitable foundation. The structures that build above expansive soil bed are susceptible to heave and to withstand swell pressure, thus the swell pressure must be considered in the design. This study focuses on swelling properties of two expansive clay from Ngawi, East Java and Wates, Yogyakarta. Laboratory test on disturbed samples is used to identified and to measured swelling properties. A series of swelling test was performed under constant soil dry density. The influence of initial water content and surcharge pressure on swelling properties (i.e swell percent and swell pressure) of compacted samples were investigated. The swelling properties test used ASTM standard 4546-03 method B. It was found that the lower initial water content the higher the swell percent, but the swell pressure seems not to be affected by initial water content. At the same initial water content, swell percent decrease with the increase of surcharge pressure, but swell pressure remains unchanged.
Kekuatan Geser Campuran Tanah-Kapur-Abu Sekam Padi Dengan Inklusi Kadar Serat Karung Plastik Yang Bervariasi Widianti, Anita; Hartono, Edi; Muntohar, Agus Setyo
Jurnal Semesta Teknika Vol 10, No 1 (2007): MEI 2007
Publisher : Jurnal Semesta Teknika

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Abstract

Stabilisasi tanah secara kimia yaitu dengan penambahan kapur dan abu sekam padi mampu meningkatkan kekuatan gesernya, namun campuran tersebut cenderung berperilaku getas (brittle). Keadaan ini kurang memuaskan bila digunakan sebagai bahan konstruksi yang lebih menginginkan bahan berkekuatan tinggi tetapi berperilaku ductile. Kombinasi dari teknik perbaikan tanah secara kimia dan secara mekanis (yaitu dengan perkuatan serat-serat plastik) diharapkan akan memberikan hasil yang lebih baik. Tujuan dari penelitian ini adalah untuk mengkaji kuat geser tanah yang distabilisasi dengan kapur-abu sekam padi-serat plastik dengan berbagai variasi kadar serat  dan masa perawatan. Dalam penelitian ini digunakan tanah yang dicampur 12% kapur, 24% abu sekam padi dan serat karung plastik sebanyak 0,1%, 0,2%, 0,4%, 0,8%, dan 1,2% dari berat total campuran. Uji yang dilakukan adalah uji geser langsung pada saat benda uji berumur 7 dan 14 hari. Secara umum dengan adanya penambahan serat karung plastik dan masa perawatan, nilai kohesi, sudut gesek dalam, dan kuat geser mengalami peningkatan dibandingkan nilai pada tanah asli dan tanah yang hanya dicampur dengan kapur-abu sekam padi saja. Campuran tanah - kapur-abu sekam padi dan 0,4 % serat untuk masa perawatan 14 hari memberikan peningkatan nilai kuat geser tertinggi, yaitu sebesar 178,63 % dari nilai kuat geser tanah asli (pada σ = 12,59 kN/m2).
Analisis Lendutan Model Pelat Fleksibel dengan Tiang Perbesaran Ujung dan Pelat Tidak Rapat Tanah Pada Tanah Pasir Hartono, Edi
Jurnal Semesta Teknika Vol 17, No 1 (2014): MEI 2014
Publisher : Jurnal Semesta Teknika

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Abstract

Problems in sandy soil may occur when sand has low density, uniform gradation and thick deposit. Flexible plate foundation may used in this condition but plate deflection still high. To reduce deflection and to improve soil density, piles were used to support the plate. Installing piles made foundation system stiffer. The objectives of this study are to studies about behavior of plates and plate with pile on sandy soil. Plate deflection was observed with variation of plate thickness, bottom pile enlargement, and soil-plate-pile interaction (free standing pile and piled foundation). 1,2 x 1,2 x 1,2 m box container filled with sandy soil was used as soil media. Square and rectangular plexiglass plate were used to modelled plate. Steel pipe with 2,5 cm  in diameter were used as pile model. The behavior of the plates were observed under loading (point load). The results shows that plate deflections were affected on plate thickness, bottom pile enlargement and soil-plate-pile interaction. For a ticker plate, contact surface between plate and soil was wider. For the 40 cm x 10 cm plates with base pile enlargement, deflections were found to reduced up to 21,26%. The ‘piled foundation’ on 40 cm x 10 cm plates, (installing with 20 cm pile length, and 10 cm spacing between pile), deflections were reduced 83,63% compared with free standing foundation.
Penggunaan Campuran Abu Sampah Organik dan Limbah Karbit sebagai Bahan Pengganti Semen pada Mortar Hartono, Edi; ZA, Siti Rofi’ah; Hemeto, Abd Dzargifar
Jurnal Semesta Teknika Vol 12, No 1 (2009): MEI 2009
Publisher : Jurnal Semesta Teknika

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Abstract

Organic waste and calcium carbide waste can be used as replacement material for cement in mortar. Organic waste ash and calcium carbide waste are mixed with some variations and then conducted tests to obtain the characteristics of the materials used in this study. Content of mortar comparation base on weight that are organic waste-calcium carbide waste : sand : water of 1.0 : 2.75 : 1.0. Compositions of waste organic ash and calcium carbide waste have some variations, i.e., 0.9-0.1, 0.7-0.3, 0.5-0.5, 0.3-0.7 and 0.1-0.9. Control mortar also made as discussant for mixture variations of organic waste ash and calcium carbide waste in compressive strength test. Control is mortar mixed with common Portland cement. All of mortars are mold with molder that has dimension 5 cm × 5 cm × 5 cm. Compressive strength test is done when age of mortars is 3 days, 14 days, and 28 days. Based on laboratory test results, compressive strength on 14 days at the highest variation of 70 % organic waste ash and 30 % calcium carbide waste was found to be 26,7 kg/cm2. But, this result of compressive strength is lower compared to compressive strength of control mortar which was found to be 79.9 kg/cm2 on 14 days. Highest compressive strength of all mixture variation showed that mixture of waste organic ash and calcium carbide waste can be used as a mortar/mixture of brick pair in simple house type and very simple house type that needs compressive strength as much as 25 kg/cm2for wall that do not bear of load. 
Uji Beban dan Analisis Lendutan Model Pelat Fleksibel yang Didukung Tiang-Tiang pada Tanah Pasir Hartono, Edi
Jurnal Semesta Teknika Vol 16, No 1 (2013): MEI 2013
Publisher : Jurnal Semesta Teknika

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Abstract

Sand commonly has a good bearing capacity. Problems may occur when sand has low density and thick deposit. Flexible plate foundation may be used in this soil but plate deflection may be still high. To reduce deflection and improving soil density, piles were used to support the plate. Installing piles made foundation system stiffer. The objectives of this study are  to studies about behavior of plates and plate with a pile of sand on the ground, influence of plate thickness , pile length and spacing of the pole deflection, and the influence of the bond between the plate and the deflection of the pile .In this study is used test box of 1.2 m depth, 1.2 m width, 1.2 m length, and 1.0 m depth filled out with sand. Plate models were made from plexiglas of rectangular and square geometry. Piles were of steel pipesof 2.5cm diameter. Some parameters were as follows : plate thickness, plate geometry, pile length (L), pile spacing (s), bounding between plate and pile (fix or free), ’piled’ and freestanding foundation, and base pile enlargement. The behavior of the plateswere observed under loading (point load). The result shows that plate deflections were affected by the method of pile installation, plate thickness and pile length. For a ticker plate, contact surface between plate and soil was wider. For the 40cmx10cm plates with fix end pile, deflectionswere founf to reduced up to 70% compared with free end pile. The ’piled foundation’ on 40cmx10cm plates, L=20cm, s=4d, deflections were reduced 83,63% compared with free standing foundation.
Penerapan Metode P-Median dalam Penentuan Lokasi Optimal Tempat Penampungan Sementara (TPS) Sampah di Kabupaten Klaten Yuniaristanto, Yuniaristanto; Hartono, Edi; Akbar, Chaidir; Putri, Aditya Isnaini Setyargo
Tekinfo | Jurnal Ilmiah Teknik Industri dan Informasi Vol 6 No 2 (2018)
Publisher : Study Programme of Industrial Engineering, Universitas Setia Budi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31001/tekinfo.v6i2.332

Abstract

Kabupaten Klaten yang memiliki luas wilayah 655,56 km2, terbagi menjadi 26 kecamatan, jumlah total penduduk 1.469.253 jiwa (2014) yang terbesar se-karesidenan Surakarta dan dengan tingkat kepadatan 2,241 jiwa/km2. Produksi sampah yang banyak dipengaruhi oleh jumlah penduduk. Ketika pengelolaan sampah tidak berjalan dengan baik akan menimbulkan bencana bagi wilayah sekitar. TPS resmi di Kabupaten Klaten berjumlah 161 TPS yang tersebar di 26 kecamatan. Agar pengelolaan sampah di Kabupaten Klaten bisa terkelola dengan baik, maka penentuan lokasi TPS harus tepat. Penentuan lokasi dan alokasi agar upaya pengolalan sampah di Kabupaten Klaten berjalan dengan baik dengan menggunakan metode P-Median merupakan bagian dari mixed integer liniear programming yang bertujuan untuk meminimumkan total waktu tempuh rata – rata. Hasil dari perhitungan P-Median untuk menentukan alokasi optimal pada tahun 2017 menunjukan jumlah TPS yang terpilih sebanyak 73 TPS untuk melayani 101 sumber sampah yang tersebar di Kabupaten Klaten dengan total kapasitas sebesar 675,5 m3 dan volume sumber sampah total sebanyak 440,6 m3/hari. Dengan demikian tidak terjadi penumpukan sampah di TPS.
Total Testosterone Level is Lower in Women Consuming Combined Oral Contraception with Impaired Sexual Function Tumeida, Joseph L; Amra, Yuniarty; Hartono, Edi
Indonesian Journal of Obstetrics and Gynecology Volume. 1, No. 3, July 2013
Publisher : Indonesian Socety of Obstetrics and Gynecology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (108.148 KB) | DOI: 10.32771/inajog.v1i3.351

Abstract

Objectives: The aim of this research was to assess the relationship between total testosterone level and female sexual function based on Female Sexual Function Index (FSFI) among the acceptors of combined oral contraceptive pill. Methods: The research was conducted in BLU of Dr. Wahidin Sudirohusodo Hospital and several teaching hospitals in obstetrics and gynecology sections of Medical faculty, Hasanuddin University from October to December 2012. This study assessed sexual function among 60 women as the acceptors of combined oral contraceptive pill. Sexual function was assessed using FSFI questionnaire which had been validated in several countries. This research used cross sectional design and the sample was selected using consecutive sampling method. The data were processed using SPSS with independent t test of the significant level of 0.05. Results: The results of the research reveal that total testosterone level among the acceptors of combined oral contraceptive pill who have impaired sexual function is low. The result of the correlation test between testosterone level and FSFI score indicates a significant level (p<0.05) with a correlation coefficient of (r) = 0.737. The testosterone level of female who have impaired sexual function is significantly different (p<0.05) from women who have normal sexual function. The cut off testosterone level that could indicate the occurrence of sexual dysfunction is 12.4 ng/dl. Conclusion: The total testosterone level among the acceptors of combined oral contraceptive pill who have impaired sexual function is lower than others who have no impaired sexual function. [Indones J Obstet Gynecol 2013; 1-3: 129-33] Keywords: combined oral contraceptive pill, FSFI, sexual function, total testosterone level
Techniques of Translating Adele’s 25 Album into Indonesian and The Naturalness Quality Hartono, Edi; Yuliasri, Issy
Rainbow : Journal of Literature, Linguistics and Culture Studies Vol 8 No 1 (2019): Rainbow: Journal of Literature, Linguistics and Culture Studies
Publisher : English Department, Faculty of Languages and Arts, Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (327.022 KB) | DOI: 10.15294/rainbow.v8i1.29645

Abstract

This research focuses on analyzing the use of translation techniques and the naturalness of the translated lyrics. The objectives of the study were to investigate the translation techniques used to translate song lyrics and to identify the naturalness in translated lyrics of Adele's 25 album songs. This research was done qualitatively. This research applied the translation technique classification proposed by Molina and Albir (2002:509-511) and the naturalness assessment proposed by Nababan (2012). Data analysis was done by comparing the original language and the translated lyrics version to find out the most used of translation techniques. The rater survey was also done by asking 20 respondents to find out the naturalness level of the translated lyrics. The results of the study showed that there were 276 data of the translated lyrics and 11 translation techniques found in this research. Literal translation technique was the most frequent used, followed by Linguistic compression. Some other translation techniques were used moderately such as, Established equivalent, reduction, and discursive creation. The rest techniques were used in low frequency such as modulation, amplification, compensation, linguistic amplification, transposition, and particularization. In terms of naturalness assessed by twenty respondents found that around 61.95% of the data were considered natural translation, 28.80% were less natural and 9.23% were unnatural. The translation techniques with the highest naturalness were Linguistic amplification technique with a percentage 68.18%, particularization was contributing most to less natural translation with percentage 45%, and the transposition technique was contributing most to unnatural translation with percentage 23%. From the data, it can be concluded that the translated lyrics of Adele's 25 album were mostly natural. Keywords: Song, Lyric, Translation Techniques, Naturalness
KAJIAN YURIDIS PEMBUKTIAN PASAL 81 AYAT (2) UU RI NO.23 TAHUN 2002 TENTANG PERLINDUNGAN ANAK (Studi Kasus Putusan Hakim Nomor17/Pid.Sus/2015/PN.Skt.). HARTONO, EDI
Dinamika Hukum Vol 7 No 2 (2016): DINAMIKA HUKUM
Publisher : Dinamika Hukum

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Abstract

The purpose of this study is to assess the evidence of the facts that proved to be a violation of Article 82 of Law No.23 of 2002 on the Protection of Children in Decision Judge No. 17 / Pid.Sus / 2015 / PN.Skt and examines the legal considerations which indicate the presence of legal protection for child victims of the Award. Background this research that in the jurisdiction of the District Court Surakarta there are cases of violations of the law against Article 82 of the Child Protection Act. The case has been decided in the case No. 17 / Pid.Sus / 2015 / PN.Skt. In the decision will be reviewed the facts revealed at the hearing, especially from the point of proof as well as from the point of consideration. The research method consists of the type of normative juridical research, the necessary data is secondary data, the nature of descriptive and normative analysis done qualitatively. The results of the study concluded that the verification done by the judges begins with disclosure of the facts in the trial of the case occurred, ie criminal cases persuade intercourse. After revealing about the facts of the law is then associated with the elements of the offenses discussed in indictment. In this case, on the basis of the evidence and the evidence is there, then the accused is legally and convincingly of committing criminal offenses which the accused as first indictment that is in violation of Article 82 paragraph (1) of Act 23 of 2002 on Child Protection. Keywords : Analysis of Judicial Evidence Article 82 of Law 23 of 2002, Decision No. 17 / Pid.Sus / 2015 / PN.Skt
Uji Triaksial Unconsolidated-Undrained pada Campuran Tanah Lanau - Kapur - Abu Sekam Padi dan Serat Karung Plastik Widianti, Anita; Hartono, Edi; Muntohar, Agus Setyo
Semesta Teknika Vol 11, No 2 (2008): NOVEMBER 2008
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/st.v11i2.765

Abstract

Geotechnical and mechanical behaviour of soil stabilized with lime-rice husk ash and strengthened by randomly placed plastic fiber depends on the portions of the added materials and curing time. This research investigates the effect of the waste plastic sack fibers portion and the curing time to the stress – strain relationship and to the shear strength parameters of the mixture. In this study the portions of lime and rice husk ash were set as constant to the value of 12% and 24% respectively. The effect of four waste plastic sack fibers portion variation from 0.1% to 0.8% was measured by unconsolidated-undrained triaxial test. The samples were tested at 7, 14 and 21 days after mixing. In general, according to the test result, the inclusion of randomly waste plastic sack fiber and curing time have enhanced the shear strength parameters, the peak stress and the strain before failure.  With 0.2% fiber content, the cohesion and the internal friction angle values of the samples have increased 335% and 409% respectively compared with those of the samples having no added materials.