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All Journal JPM17: Jurnal Pengabdian Masyarakat Jurnal Penelitian KURVATEK Journal of Scientech Research and Development Student Scientific Creativity Journal
Herry Widhiarto
Unknown Affiliation
Aerospace Engineering Arts Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Social Sciences Transportation

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STABILISASI TANAH LEMPUNG EKSPANSIF DENGAN MENGGUNAKAN CAMPURAN ABU-SEKAM DAN KAPUR Herry Widhiarto; Aris Heri Andriawan; Andik Matulessy
JPM17: Jurnal Pengabdian Masyarakat Vol 1 No 02 (2015)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30996/jpm17.v1i02.538

Abstract

Soil as the foundation of a building must have a carrying capacity that is capable of supporting the load of the building on it. For this type of soil of clay that has a large shrinkage and development properties (expansive clays) as a result of which contained mineral montmorillonite minerals form very easily affected by changes in water content so easily expands further damaging buildings on it. To reduce the fluffy nature of clay is necessary to repair / stabilization by adding mix-husk ash and lime. In this study, carried out by the addition of a mix-husk ash and lime with variations in the percentage of 0%, 4%, 6% and 8%. The results show the value of plasticity index, IP, decreased by 59.35% on a mix-husk ash and lime at 6%, the greater the percentage of mix-husk ash and lime, dry density value,  increasing dry unit weight, decreasing swelling occurs quite 4% greater in percentage mix-husk ash and lime, the CBR value increased with the increasing percentage-husk ash and lime.Keywords: expansive clay, montmorillonite minerals, plasticity index, swelling, dry density, CBR.
ANALISIS PENGARUH PENAMBAHAN BAHAN STABILISATOR ABU JERAMI TERHADAP KEPADATAN TANAH LEMPUNG EKSPANSIF KABUPATEN PAMEKASAN laily endah fatmawati; Herry Widhiarto; Heri Santoso
KURVATEK Vol 5 No 1 (2020): April 2020
Publisher : Institut Teknologi Nasional Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33579/krvtk.v5i1.1568

Abstract

Expansive clay is a soil that has a low carrying capacity and high shrinkage growth. Tthe soil has certain limited physical and mechanical properties. Therefore a stabilization is needed so that the parametric soils values ​​become better so that they can be used as subgrade in a construction. Tests carried out include, specific gravity testing, liquid limits, plastic limits, and compaction testing with proctor test and CBR test. The soil was used in this study was taken from the area Bujur Timur, Pamekasan. The soil included the CH group with a plasticity index of 43.5%. The percentage of addition of rice straw is 0%, 2%, 4%, 6%, 8%, 10% of the dry weight of the soil. The most optimum of proctor test results are the addition of rice straw ash by 5.8% with 0MC (Optimum Moisture Content) value of 15,20 % and dry content weight 1.72 gr/cm3. The optimum test results with 7.8% rice straw ash with a CBR value of 5.4% so that can be used for alternative soil improvement. Keywords: expansive clay, rice straw ash, soil stabilization, pamekasan
ANALYSIS OF ROAD CONDITION VALUE ON THE NATIONAL ROAD TEUKU UMAR TUBAN USING BINA MARGA METHOD Richo Ardidarmawan Mintiya; Herry Widhiarto; Aditya Rizkiardi
Jurnal Penelitian 191-198
Publisher : Politeknik Penerbangan Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46491/jp.v7i3.925

Abstract

Roads are the most important aspects of distribution, social, and economic fields, but over time and changing weather is often the cause of road damage. Therefore, it is necessary to have a review carried out to be able to determine the type of damage and the degree of damage that occurs. Observations will be made on the Teuku Umar Tuban Road Section by referring to the Bina Marga Method. Observations will be carried out visually and only analyzed only on the surface, in addition to calculating the daily vehicle volume. From the observation process, types of damage were obtained, namely patholes, cracking, patchng, depression and rutting. Based on the type of damage, repairs will be carried out on the most numerous and fundamental type of damage is to use the crack fill method, this is done because this road has a crack of 55%.
ANALISIS KEMACETAN ARUS LALU LINTAS DI RUAS JALAN RAYA JATI – CEMENG KALANG KABUPATEN SIDOARJO Diakbar Mushawir; Herry Widhiarto; Faradlillah Saves
Journal of Scientech Research and Development Vol 6 No 1 (2024): JSRD, June 2024
Publisher : Ikatan Dosen Menulis

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56670/jsrd.v6i1.344

Abstract

Jalan Raya Jati – Cemeng Kalang Sidoarjo, Jawa Timur merupakan Jalan Arteri primer yang termasuk dalam wilayah Kabupaten Sidoarjo. Kemacetan di Ruas jalan Raya Jati – Cemeng Kalang, Sidoarjo Jawa Timur sudah lama Menjadi masalah bagi pengendara kendaraan bermotor. Kemacetan Jalan Raya Jati – Cemeng Kalang disebabkan oleh beberapa faktor, yaitu perbandingan Jumlah kendaraan dengan ruas jalan yang tersedia tidak seimbang, jumlah Kendaraan pribadi yang terus meningkat, parkir liar, kurang maksimalnya Penggunaan transportasi umum, jalan Raya Jati – Cemeng Kalang ini memiliki Type ruas 2/2UD.Tujuan dari penelitian ini untuk menganalisis besar Volume kendaraan pada Jalan Raya Jati –Cemengkalang pada jam puncak pagi hari dan sore hari. Metode penelitian yang digunakan adalah metode observasi daln manuall count agar memperoleh data – data dari pengalmaltaln secalral langsung dan melakukan pengolahan data sesuai dengan PKJI 2014. Volume lalu lintas di Jalan Raya Jati – Cemengkalang paling padat pada jam puncak pagi hari terjadi pukul 07.00 – 08.00 WIB dengan total 6030.3 skr/jam, sedangkan volume lalu lintas paling padat pada jam puncak sore hari terjadi pukul 17.00 – 18.00 WIB dengan total 6112.3 skr/jam.
ANALISIS KEPUASAN MASYARAKAT TERHADAP LAHAN PARKIR DI PASAR MODERN CITRALAND SURABAYA Aam Jowo Restu Aji; Herry Widhiarto; Faradlillah Saves
Journal of Scientech Research and Development Vol 6 No 1 (2024): JSRD, June 2024
Publisher : Ikatan Dosen Menulis

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56670/jsrd.v6i1.377

Abstract

Lahan parkir pasar sebagai fasilitas area dimana dimulai dan berhentinya kendaraan. Penelitian ini melakukan studi pada area lahan parkir di pasar Modern Citraland Surabaya. Permasalahan yang ditemukan pada area lahan parkir tersebut adalah overloadnya kendaraan yang parkir di area tersebut. Sehingga menyebabkan ketidakpuasan pada masyarakat yang melintas maupun berkunjung di pasar tersebut. Salah satu upaya mengatasi permasalahan tersebut adalah dengan menganalisa kepuasan masyarakat terhadap lahan parkir di pasar Modern Citraland Surabaya. Penelitian mengolah data observasi, dokumentasi, dan penyebaran kuisioner. Penyebaran kuisioner sangat dibutuhkan untuk pengujian validitas dan reliabilitas data sample penilaian masyarakat. Ada 22 item pertanyaan dalam kuisioner yang diuji peneliti. Dalam penyebaran kuisioner ada 84 responden dan terdapat 30 sampel yang layak diuji. Hal itu berdasarkan data karakteristik responden. Setelah mengolah kevalidtan dari data sample peneliti melanjutkan analisa dengan metode IPA. Hasil dari metode IPA adalah terdapatnya tingkat kepuasan masyarakat (X ̅=2.56) yang lebih kecil daripada nilai harapan (Y ̅=3.77) terhadap lahan parkir pasar Modern Citraland Surabaya. Penelitian ini juga membuat diagram kartesius yang dimana tiap item kuisioner berada di kuadran yang berbeda. Terdapat 4 kuadran pada diagram kartesius. kuadran 1 merupakan nilai harapan yang tinggi namun kepuasan masyarakat terhadap lahan parkir di nilai kurang. Kuadran 2 nilai harapan yang tinggi dan kepuasan masyarakat terhadap lahan parkir di nilai sudah sesuai. Kuadran 3 merupakan nilai harapan yang rendah dan kepuasan masyarakat terhadap lahan parkir juga kurang. Kuadran 4 merupakan nilai harapan yang rendah namun kepuasan masyarakat terhadap lahan parkir di nilai baik.
Pengaruh Penggunaan Silica Fume Sebagai Bahan Tambah Pada Beton Alir Achmad ihza Mahendra; Nurul Rochmah; Herry Widhiarto
Student Scientific Creativity Journal Vol. 1 No. 4 (2023): Juli : Student Scientific Creativity Journal
Publisher : Pusat Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/sscj-amik.v1i4.1577

Abstract

Concrete is a material that is commonly used when doing construction work today. Because concrete has several advantages when compared to other materials, such as being easy to form, resistant to weather changes, has high compressive strength, and is durable. In this study the use of Silica Fume as an additive to flow concrete has the function of improving the quality of flowing concrete. Silica Fume has an important role in affecting the chemical and mechanical properties of concrete. Judging from its chemical properties, Silica Fume geometrically fills the voids between cement materials, and causes the pore diameter to decrease and the total pore volume to decrease. Meanwhile, from its mechanical properties, Silica Fume has a pozzolanic reaction (a material containing silica/silica dioxide and alumina compounds) which reacts to the limestone released by the cement. The aim of the research is to increase the maximum compressive strength of flowing concrete by using Silica Fume added with varying percentages of 0%, 5%, 6%, 7.5%, 9%, 10.5% and 12% and using a superplasticizer of 1.5 %. From the results of the research conducted, it was found that flowing concrete with added silica fume on concrete compressive strength was able to reach 7.5% at 7 days of age of 25.91 MPa and at 28 days of concrete age was obtained at 26.19 MPa.
Co-Authors Aam Jowo Restu Aji Achmad ihza Mahendra Aditya Rizkiardi Andik Matulessy Aris Heri Andriawan Diakbar Mushawir Heri Santoso laily endah fatmawati Nurul Rochmah Richo Ardidarmawan Mintiya Saves, Faradlillah