Article Per Year (5 Year)
p-Index From 2020 - 2025
0.23
P-Index
This Author published in this journals
All Journal JURNAL ILMU PENGETAHUAN DAN TEKNOLOGI TERAPAN "REINTEK" (REKAYASA INOVASI TEKNOLOGI) Jurnal Serambi Engineering Portal: Jurnal Teknik Sipil
Mahyar, Herri
Politeknik Negeri Lhokseumawe
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Engineering Environmental Science

Published : 6 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 6 Documents
Search

 1 
MIKRO SILIKA SEBAGAI BAHAN TAMBAH UNTUK MENINGKATKAN KUAT TEKAN BETON MUTU TINGGI Mahyar, Herri
JURNAL ILMU PENGETAHUAN DAN TEKNOLOGI TERAPAN "REINTEK" (REKAYASA INOVASI TEKNOLOGI) Vol 7, No 1 (2012): JURNAL ILMU PENGETAHUAN DAN TEKNOLOGI TERAPAN "REINTEK" (REKAYASA INOVASI TEKNOL
Publisher : JURNAL ILMU PENGETAHUAN DAN TEKNOLOGI TERAPAN "REINTEK" (REKAYASA INOVASI TEKNOLOGI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (182.583 KB)

Abstract

High Quality concrete have used as many last construction material for a number of years by using is assorted of materials add. high Quality concrete classified as concrete with high strength  (  bigger than 400 singk / cm2 ) . Intention of this research that is to be is optimal of strength depress high quality concrete with materials growing microly of type silica of sikafume. Result of research indicate that by enhancing is micro of  type silica of sikafume, strong depress tired concrete 743,10 singk / cm2.
PEMAKAIAN ADDITIVE MICRO SILICA DALAM CAMPURAN BETON UNTUK MENINGKATKAN KUAT TEKAN BETON NORMAL Herri Mahyar
Portal: Jurnal Teknik Sipil Vol 5, No 1 (2013)
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/portal.v5i1.953

Abstract

Micro silica types sikafume is one plus altemate materials (additive) than fly ash is often used to increase the compressive strength of concrete. Composition of the same material used on condition fas 0.5. Addition sikafume in concrete mixed with composition 0%, 5%, 10%, 15, and 20%. The Specimens used in this study is a concrete cylinder diameter of 15 cm and height 30 cm by 5 pieces for each sample. Compressive strength testing done at the time the specimen reaches the age of 3,7, 14, and 28 days. The result showed the maximum compressive strength of concrete at 28 days is 21 MPa without adding sikafume. Maximum compressive strength due to the use of additive type sikafume (15%) achieved at the age of 28 days with a concrete compressive strength of 34 MPa.
EVALUASI KUALITAS PELAYANAN KEPADA MAHASISWA JURUSAN TEKNIK SIPIL DENGAN MODEL SERVQUAL UNTUK MENINGKATKAN MUTU LULUSAN Herri Mahyar; Rizal Syahyadi
Portal: Jurnal Teknik Sipil Vol 11, No 1 (2019)
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/portal.v11i1.1514

Abstract

Abstrak — Penelitian ini dilakukan untuk mengetahui kualitas layanan yang telah diberikan kepada siswa oleh Departemen Teknik Sipil. Hal ini mengingat kualitas mahasiswa pascasarjana diukur berdasarkan indeks prestasi kumulatif (IPK) lebih kecil dari 2,75, persentase meningkat dari tahun ke tahun. Dalam penelitian ini mencoba menganalisis kualitas pelayan kepada siswa dengan model melayani untuk mengetahui hal-hal yang mempengaruhi kualitas pelayanan. Selain itu, penelitian ini juga dapat bermanfaat untuk meningkatkan beberapa atribut layanan kepada siswa. Berdasarkan hasil penelitian ada kesenjangan antara layanan yang diterima dengan yang diharapkan oleh siswa atau kinerja JTS. Ini menunjukkan kesenjangan terbesar ke dimensi terkecil dari dimensi Berwujud (1,331), dimensi Reabilitas (1,015), dimensi Emphaty (0,969), dimensi Assurance (0,802), dan dimensi Responsiveness (0,801). Nilai gap negatif terbesar adalah dimensi reabilitas kemudahan memperoleh layanan akademik (bimbingan PKL dan TGA) yaitu -1,470, kehadiran dosen sesuai jadwal kursus (tepat waktu) dengan nilai gap -1,465 dan dimensi Assurance dengan atribut layanan dosen. selalu menemani siswa selama kegiatan latihan -1,460).Kata kunci : Servqual, Kualitas Layanan, Gap.Abstract — This research is conducted to know the quality of service that has been given to the students by the Department of Civil Engineering. This is considering the quality of graduate students measured based on cumulative achievement index (GPA) is smaller than 2.75, the percentage increases from year to year In this study tried to analyze the quality of waiters to students with servequal model to know things that affect the quality of service. In addition, this research can also be useful to improve some attributes of services to students. Based on the results of research there is a gap between the service received with the expected by the student or the performance of JTS. This shows the largest gap to the smallest of the Tangible dimensions (1.331), Reability dimensions (1.015), Emphaty dimensions (0.969), Assurance dimensions (0.802), and Responsiveness dimensions (0.801). The biggest negative gap value is the reability dimension of ease of obtaining academic service (PKL and TGA guidance) that is -1,470, Lecturers attendance according to schedule of course (on time) with gap value -1,465 and Assurance dimension with attribute of lecturer service always accompany student during practice activity -1,460).Keywords: Servqual, Service Quality, Gap.
PEMANFAATAN ABU SEKAM PADI SEBAGAI BAHAN CAMPURAN BETON AGROPOLYMER Musbar Musbar; Faisal Rizal; Herri Mahyar
Portal: Jurnal Teknik Sipil Vol 2, No 2 (2010)
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/portal.v2i2.486

Abstract

Constribution of production PC every year at glasshouse emission continue to experience of increase, estimated about 7% from totalizing the glasshouse emission transmitted to atsmosphere earth. On that account, is very needed the new inventions of concrete technology to produce the friendly environment. Some alternatives among its by making the concrete polymer which materials base natural, be like fly ash and rice husk ash ( RHA ) . this research use the RHA upon which mixture to make the concrete agropolymer. Concrete agropolymer use fixative of silicate sodium condensation mixture, hydroxide sodium and RHA. Variable remain to this research is strength the concrete agropolymer. Free variable consist of the ratio variation water and agropolymer solid that is 0,6 and 0,7, treatment time during 3,7, 14 and 21 day. Temperature treatment of object test at room temperature, each;every variation made by the object test the cube with side of 10 cm counted 5. This research can give the alternative to invention of friendly concrete of environment by exploiting the waste materials natural agricultural produce, but not yet application can at building construction because of strength depress the concrete still lower. Strength depress the obtained by concrete range from 4 - 5 Mpa at the age of concrete of 21 day. It’s needed to do the further research to get the ideal composition of materials concrete agropolimer this so that can be obtained the strength depress the application concrete able to building construction.Keyword : RHA, agropolymer, concrete strength
PERENCANAAN GELAGAR BETON PRATEGANG PADA JEMBATAN KEUDE RANTO PEUREULAK KABUPATEN ACEH TIMUR Wahyuni Wahyuni; Herri Mahyar
Portal: Jurnal Teknik Sipil Vol 9, No 1 (2017)
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/portal.v9i1.613

Abstract

Keude Ranto Peureulak Bridge a bridge connecting Keude Ranto Panjang with Keude Geurobak village and other villages in Ranto Peureulak Sub-district, East Aceh District. Keude Ranto Peureulak Bridge is planned with a span length of 20.8 meters and width of 7 meters. The longitudinal axis planned for the bridge is the posttractive pretreat type concrete girder. The girder plan includes gelagar dimensioning, stress calculation, prestress loss, cross-sectional capacity, deflection control, and drawing. The quality of concrete used is fc = 40 Mpa, the tendon used is seven wire strand diameter ½ inch with 51 mm diameter tendon sheath. Tendon fpu voltage = 1860 Mpa, fy threaded steel reinforcement = 320 Mpa, plain steel reinforcement fy = 240 Mpa, and efficient cross-sectional height is 0.9 meters. From the calculation results obtained the moment that occurred on the girder of 2563,439 kNm on the calculation of the third combination. The number of tendons obtained from the calculation is 3 pieces with 7 pieces of strand on each tendon. Losing the total prestress force is 380,694 Mpa. The principal reference is used D13 mm, the shear reinforcement is used Ø10-100 mm at the support area and Ø10-600 mm in the field area. The ultimate moment capacity of the prestress beam is 5575.60 kNm from the calculation of the third combination. The largest deflection of 0.0247 meters due to a combination of two loads. All the results of the calculations obtained are safe to use.Keywords: girder, prestress, tendon, reinforcement, deflection
Pemanfaatan Limbah Styrofoam untuk Substitusi Aspal Pen 60/70 pada Laston dengan Metode Pencampuran Basah dan Kering Febrina Dian Kurniasari; Ruslaini Ruslaini; Herri Mahyar
Jurnal Serambi Engineering Vol 7, No 1 (2022): Januari 2022
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v7i1.3824

Abstract

The asphalt concrete layer is a wear layer or AC-WC (Asphalt Concrete Wearing Course) is a type of pavement layer located at the top on the road surface. This layer is designed to be resistant to vehicle wheel pressure, shear force and as a protective construction underneath against damage caused by weather and water. However, over time the asphalt concrete layer that is often found in the field has not reached the design age, there have been damage such as permanent deformation, cracks, and waves that can disturb the comfort and safety of traffic users. One of the efforts to improve the quality of the laston mixture is to modify the asphalt mixture with polymer materials, namely styrofoam waste. The study aimed to determine the marshall parameters on the best use of modified asphalt styrofoam waste according to the requirements of highways. The styrofoam waste in this research was taken from the rest of the ready to eat food packaging as a substitute for part of the asphalt with a percentage of 0%, 3%, 6%, 9%, 12% and 15% with the wet and dry method. The method used in the study was Bina Marga 2010 revision 4 of 2018. The results of the study showed that for the wet method that meets the requirements of Bina Marga, the asphalt content is 5.50% with 12% styrofoam percentage and the stability value is 1000.52 Kg and dry method obtained the best results asphalt content of 5.00% styrofoam percentage 15% with a value of 1623.40 Kg.
Co-Authors Daniel Happy Putra Faisal Rizal Febrina Dian Kurniasari Musbar, Musbar Rizal Syahyadi Wahyuni Wahyuni