scholarly journals Volumetric Characteristics of HRS-WC Mixed Using Petroleum Bitumen Grade 60/70 as Binder

2021 ◽  
Vol 921 (1) ◽  
pp. 012069
Author(s):  
Irianto ◽  
M Tumpu ◽  
H Parung
Keyword(s):  
Experimental Method ◽  
Binder Layer ◽  
Bitumen Content ◽  
Petroleum Bitumen ◽  
Asphalt Content ◽  
Volumetric Characteristics

Abstract This study aims to determine the volumetric values consisting of VIM, VMA and VFB on the binder layer mixture using HRS-WC gradation using petroleum bitumen as a binder. The method used in this research is experimental method in laboratory. In this study, variations of asphalt content used were 5.5%, 6.0%, 6.5%, 7.0% dan 7.5%. These variations were obtained from the calculation of effective asphalt level of 5.9%. The results show that the VIM values decreases along with the increase of bitumen content used. VIM values obtained were 6.69%, 5.82%, 5.18%, 4.42% and 3.34%, respectively. The VMA values obtained were 18.12%, 18.38%, 18.84%, 19.21% and 19.30% for each bitumen content. Besides that, the value of VFB is also taken into account and the values obtained for each quality of bitumen content are 63.10%, 68.41%, 72.57%, 76.99% and 82.71%.

scholarly journals PENGARUH PENAMBAHAN BUTON ROCK ASPHALT (BRA) SEBAGAI FILLER PADA CAMPURAN LASTON LAPIS AUS (AC-WC)

2018 ◽  
Vol 1 (3) ◽  
pp. 715-724
Author(s):  
Razuardi Razuardi ◽  
Sofyan M. Saleh ◽  
Muhammad Isya
Keyword(s):  
High Temperature ◽  
Asphalt Mixture ◽  
Improve Performance ◽  
Yield Value ◽  
Marshall Test ◽  
Bitumen Content ◽  
Asphalt Content

Abstract: The main cause of road damage is inseparable from stability and flexibility which is the determinant of the quality of pavement. One way to overcome that is to improve performance by modifying pavement mixture using additive, With low penetration value and high temperature in Indonesia, buton rock asphalt suitable for use as an additive. This research discusses the examination of mixtures whose performance has been optimized with buton rock asphalt modifications as filler. This study aims to determine the effect of minerals and bitumen contained in buton rock asphalt to marshall characteristics which are then compared with hot asphalt mixture using dust as filler. Variations of asphalt content used were 4.5%, 5%, 5.5%, 6% and 6.5% for both different filler types. In marshall test yield value of VIM, VMA, VFB, Stability, flow and marshall quentient, from the values obtained optimum bitumen content. Optimum asphalt content by using Buton rock asphat as filler of 5.87%. From marshall parameter result obtained the best stability value at 5% asphalt content of 1302,30 kg, density 2,41 gr / cm3, VIM 5,59%, VMA 17,42%, VFB equal to 67,96% and flow equal to 3 , 2 mm, and marshall quentient of 565,74 kg / mm, While the optimum asphalt content by using stone ash as filler is 5,51% yielding the best stability at 5,5% asphalt level 1767,02 kg, density 2,39 gr / cm3, VIM equal 3%, VMA equal to 16,21% , VFB of 81.99% and flow of 2.7 mm, and marshall quentient of 523.75 kg / mm.Abstrak: Penyebab utama dari kerusakan jalan raya tidak terlepas dari stabilitas dan fleksibilitas yang merupakan parameter penentu kualitas perkerasan jalan. Salah satu cara untuk mengatasinya yaitu dengan memperbaiki kinerja campuran dengan memodifikasi perkerasan menggunakan bahan tambah. Dengan nilai penetrasi yang rendah dan temperatur yang cukup tinggi di Indonesia, asbuton butir cocok di gunakan sebagai bahan tambah. Penelitian ini membahas tentang pemeriksaan campuran yang kinerjanya telah di optimumkan dengan penambahan buton rock asphalt (BRA) tipe 5/20 sebagai filler . Penelitian ini bertujuan untuk mengetahui pengaruh mineral dan bitumen yang terkadung didalam buton rock asphalt terhadap karakteristik marshall yang kemudian dibandingkan dengan campuran beraspal panas menggunakan abu batu sebagai filler. Variasi kadar aspal yang digunakan adalah 4,5%,5%,5,5%,6% dan 6,5% untuk kedua jenis filler yang berbeda. Pada uji marshall menghasilkan nilai VIM, VMA, VFB, Stabilitas, flow dan marshall quentient, dari nilai-nilai tersebut diperoleh kadar aspal optimum. Kadar aspal optimum dengan menggunakan Buton rock asphat sebagai filler sebesar 5,87 %. Dari hasil parameter marshall didapat nilai stabilitas terbaik pada kadar aspal 5% sebesar 1302,30 kg, density 2,41 gr/cm3, VIM sebesar 5,59%, VMA sebesar 17,42%, VFB sebesar 67,96% dan  flow sebesar 3,2 mm, dan marshall quentient sebesar 565,74 kg/mm, sedangkan kadar aspal optimum dengan menggunakan abu batu sebagai filler sebesar 5,51 % menghasilkan stabilitas terbaik pada kadar aspal 5,5 % sebesar 1767,02 kg, density 2,39 gr/cm3, VIM sebesar 3%, VMA sebesar 16,21%, VFB sebesar 81,99% dan  flow sebesar 2,7 mm, dan marshall quentient sebesar 523,75 kg/mm.

Studi fortifikasi hidrolisat protein udang rebon (mysis relicta) pada mie sagu

2020 ◽  
Vol 6 (1) ◽  
pp. 039
Author(s):  
Trie Omitha Purba ◽  
Suparmi Suparmi ◽  
Dahlia Dahlia
Keyword(s):  
Experimental Method ◽  
Proximate Composition ◽  
Protein Hydrolysate ◽  
Quality Standards ◽  
Processing Technology ◽  
Fish Processing ◽  
Mysis Relicta ◽  
Marine Chemistry ◽  
Randomized Design

The study aimed to determine the effect of rebon shirmp (mysis relicta) protein hydrolisate fortification to the sago noodles and to observe the characteristics of the sago noodles produced. The research was carried on in February – April 2019 in the  Laboratory of Fish Processing Technology, Integrated Laboratories, and the Fisheries and Marine Chemistry Laboratories at the Universitas Riau. The method used was the experimental method, designedas a non-factorial complete randomized design. The treatment conducted was addingof rebon shrimp protein hydrolysate at 4 level concentrations (0%, 5%, 10% dan 15%). The variables assessed were the quality of organoleptic (appearance, texture, odor, flavor) and the proximate composition. The results showed that the proteinhydrolysate of rebon shrimp at concentration of 15% was the best treatment and in accordance to the quality standards of dried noodles (SNI 01-2974-1996), indicated bythe highest organoleptic qualityof the dried noodles produced, including: the appearance that was brown, less attractive, whole, less neat; the texture that was dry and compact; the aroma that was quite fragrant, spesific rebon shrimp; and the taste that was quite tasty and shrimp flavored. The proximate composition ofthe best product was presented by the content of moisture, ash, fat, protein, and carbohydrate at 7.55%,1.02%, 0.17%, 16.76%, and 74.49%, respectively.Keywords: Hydrolysate protein, rebon shrimp, sago noodles

The Influence of Paper Factors on Digital Printing Quality

2012 ◽  
Vol 182-183 ◽  
pp. 365-368
Author(s):  
Wei Feng Jing ◽  
Wen Yan Jiang
Keyword(s):  
Experimental Method ◽  
Digital Printing ◽  
Printing Industry ◽  
Printing Quality ◽  
Quick Turnaround ◽  
Digital Prints ◽  
Better Than

Digital printing has been playing a more and more important role in printing industry for its convenient production and quick turnaround. By experimental method, the differences of digital prints with different paper were detail analyzed, includes different base weight papers of the same category, and different categories papers with the same base weight. Results showed that the printing quality of offset paper with 120 g/m2base weight was better than that of 100 g/m2, and that printing quality of art paper was better than matt art paper with the same base weight. Other characteristics of different papers were investigated too. The method and conclusion provides in this paper would be helpful for choosing appropriate material for production activities.

Research on Designing Optimum Asphalt Content of Asphalt Mixture by Calculation and Experimental Method

2011 ◽  
Vol 97-98 ◽  
pp. 23-27
Author(s):  
Wen Fang Liu ◽  
Hong Mei Li ◽  
Bei Ping Tian
Keyword(s):  
Experimental Method ◽  
Calculation Method ◽  
Asphalt Mixture ◽  
Test Efficiency ◽  
Marshall Test ◽  
Rapid Calculation ◽  
Asphalt Content ◽  
Hot Mixed Asphalt

In this paper, the initial asphalt content is estimated by the hot-mixed asphalt mixture rapid calculation method in condition that we have no information about the similar project, and five asphalt content are selected with regarding the estimated asphalt content as the middle value, then carries on the Marshall test. The optimuml asphalt content is very accurate by the calculation and experimental method, the method greatly improved the test efficiency.

scholarly journals PERFORMANCE COMPARISON OF LASTON AC-WC BASED ON AGGREGATE GRADATION SPECIFICATIONS

2018 ◽  
Vol 2 (02) ◽  
pp. 151
Author(s):  
Devi Yulita Metasari ◽  
Akhmad Hasanuddin ◽  
Dewi Junita Koesoemawati
Keyword(s):  
Flow Rate ◽  
Outer Layer ◽  
Performance Comparison ◽  
High Flow ◽  
T Test ◽  
Aggregate Gradation ◽  
Significant Difference ◽  
Bitumen Content ◽  
Asphalt Content ◽  
Paired T Test

Laston AC-WC is the outer layer of the pavement that is directly related to the outside, so a strong mixture is required. One of the major effects is the aggregate gradation.This experiment aims to find out the comparison of Laston AC-WC performance between mixtures used aggregat egradation above and below the restriction zone. Each mixture used 6 variations of asphalt content and there were 3 specimens on each variation of bitumen content. The asphalt contents used were 5,5%; 6%; 6,5%; 7%; 7,5% dan 8%. From the results of the experiments, the mixture with the aggregate above the restriction zone at 7% and 7.5% asphalt content had a density value of 2.13 gr / cc and 2.12 gr / cc respectively; VMA value of 15.49% and 15.91%; VFA values ​​of 80.48% and 79.98%; VIM value of 3.16% and 3.18%; stability value of 3013.58 kg and 2332.57 kg; flow value of 2.47 mm and 2.18 mm; as well as MQ values ​​of 1222.25 kg / mm and 1184.59 kg / mm. While on the mixture with the aggregate under the restriction zone in the asphalt content of 7% and 7.5% obtained density value of 2.11 gr / cc and 2.14 gr / cc; VMA value of 17.21% and 16.3%; VFA value of 71.21% and 78.65%; VIM value of 4.99% and 3.49%; stability value of 2518,75 kg and 3234,72 kg; flow values ​​of 2 mm and 2.07 mm; as well as the MQ value of 1259.37 kg / mm and 1623.54 kg / mm. From the results are analyzed Paired T test and found that the value of flow has a significant difference. The high flow rate was found in the mixture with the aggregate above the restriction zone at 7% asphalt content, so this mixture is more durable due to good flexibility. Laston AC-WC merupakan lapisan terluar perkerasan yang berhubungan langsung dengan keadaan luar, sehingga dibutuhkan campuran yang kuat. Salah satu yang berpengaruh besar adalah gradasi agregat yang digunakan. Penelitian ini bertujuan untuk mengetahui perbandingan kinerja laston AC-WC antara campuran yang menggunakan gradasi di atas dengan di bawah daerah larangan. Penelitian ini dilakukan terhadap campuran laston AC-WC. Masing-masing campuran menggunakan 6 variasi kadar aspal dan terdapat 3 benda uji pada setiap kadar aspal. Kadar aspal yang digunakan adalah 5,5%; 6%; 6,5%; 7%; 7,5% dan 8%. Dari hasil penelitian, campuran dengan agregat di atas daerah larangan pada kadar aspal 7% dan 7,5% memiliki nilai density berturut-turut sebesar 2,13 gr/cc dan 2,12 gr/cc; nilai VMA sebesar 15,49% dan 15,91%; nilai VFA sebesar 80,48% dan 79,98%; nilai VIM sebesar 3,16% dan 3,18%; nilai stabilitas sebesar 3013,58 kg dan 2332,57 kg; nilai flow sebesar 2,47 mm dan 2,18 mm; serta nilai MQ sebesar 1222,25 kg/mm dan 1184,59 kg/mm. Sedangkan pada campuran dengan agregat di bawah daerah larangan pada kadar aspal 7% dan 7,5% didapatkan nilai density sebesar 2,11 gr/cc dan 2,14 gr/cc; nilai VMA sebesar 17,21% dan 16,3%; nilai VFA sebesar 71,21% dan 78,65%; nilai VIM sebesar 4,99% dan 3,49%; nilai stabilitas sebesar 2518,75 kg dan 3234,72 kg; nilai flow sebesar 2 mm dan 2,07 mm; serta nilai MQ sebesar 1259,37 kg/mm dan 1623,54 kg/mm. Dari hasil tersebut dilakukan analisa Uji T Berpasangan dan didapatkan bahwa nilai flow memiliki perbedaan yang signifikan. Nilai flow yang tinggi terdapat pada campuran dengan agregat di atas daerah larangan pada kadar aspal 7%, sehingga campuran ini lebih tahan lama dikarenakan memiliki kelenturan yang baik.

scholarly journals Pemanfaatan Limbah Sereh Wangi (Cymbopogon nardus) Amoniasi sebagai Pengganti Sebagian Pakan Basal terhadap Kualitas Semen Segar Domba Ekor Tipis

2020 ◽  
Vol 20 (2) ◽  
Author(s):  
Cut Intan Novita ◽  
Cici Helviza ◽  
Asril Asril
Keyword(s):  
Experimental Method ◽  
Waste Treatment ◽  
Latin Square ◽  
Partial Replacement ◽  
Cymbopogon Nardus ◽  
Negative Effect ◽  
Fresh Semen

ABSTRAK. Suatu penelitian tentang kualitas semen segar domba ekor tipis yang diberikan limbah sereh wangi (Cymbopogon nardus) amoniasi sebagai pengganti sebagian pakan basal, dilakukan dengan metode Rancangan Bujur Sangkar Latin (RBSL) dengan 4 perlakuan dan 4 ulangan. Perlakuan A adalah tanpa pemberian limbah sereh wangi amoniasi (kontrol), perlakuan B pemberian limbah sereh wangi amoniasi (10%), perlakuan C pemberian limbah sereh wangi amoniasi (20%), perlakuan D pemberian limbah sereh wangi amoniasi (30%). Parameter yang diamati secara makroskopis yaitu volume, warna, bau, konsistensi dan pH. Sedangkan parameter yang diamati dengan mikroskopis yaitu konsentrasi, motilitas individu, dan motilitas massa. Hasil penelitian menunjukkan bahwa pemberian limbah sereh wangi amoniasi 10%-30% tidak berpengaruh nyata (P0.05) terhadap pengujian kualitas semen segar baik secara makroskopis dan mikroskopis. Pemberian limbah sereh wangi amoniasi sebagai pengganti sebagian hijauan pakan sampai taraf 30% pada domba ekor tipis jantan tidak berpengaruh negatif terhadap kualitas dari semen domba ekor tipis baik pada pengujian makroskopis maupun mikroskopis. (The utilization of ammoniated lemongrass waste (Cymbopogon nardus) as a partial replacement of basal feed on the quality of fresh semen of Javanese thin tailed sheep) ABSTRACT. A study on the quality of fresh semen of Javanese thin tailed sheep with ammoniated the waste of lemongrass (Cymbopogon nardus) as a partial replacement for basal feed, was carried out by the Latin Square Design (LSD) experimental method with 4 treatments and 4 replications. Treatment A was without ammoniated (control) lemongrass waste, treatment B was ammoniated lemongrass waste (10%), treatment C was ammoniated lemongrass waste (20%), treatment D was ammoniated lemongrass waste (30%). The parameters observed macroscopically are volume, color, odor, and consistency. While the parameters observed microscopically are concentration, individual motility, and mass motility. The results showed that the administration of 10% - 30% ammoniated lemongrass waste had no significant effect (P 0.05) on testing the quality of fresh semen both macroscopically and microscopically. The feeding of ammoniated lemongrass waste as a partial replacement of basal feed up to 30% in male rams did not have a negative effect on the quality of semen of thin sheep in both macroscopic and microscopic testing.

scholarly journals METHODS FOR IMPROVING THE ADHESION PROPERTIES OF BITUMENS TO MINERAL MATERIALS

2020 ◽  
pp. 29-35
Author(s):  
Н. А. Страхова ◽  
П. С. Цамаева ◽  
А. А. Эльмурзаев
Keyword(s):  
Atmospheric Oxygen ◽  
Experimental Studies ◽  
Effect Of Temperature ◽  
Volatile Components ◽  
Processing Plant ◽  
Adhesion Properties ◽  
Gas Phases ◽  
Gas Processing ◽  
Petroleum Bitumen

Статья посвящена анализу и изучению различных способов получения нефтяных битумов и улучшения адгезионных свойств в различных минеральных материалах. На примере Астраханского газоперерабатывающего завода показана эффективность добавления присадок - азот-, серосодержащих веществ, элементной серы и др. для улучшения адгезионных свойств битумов к минеральным материалам. Проведен анализ воздействия перепада температур в летнее и зимнее время на вяжущие свойства битумов. Рассмотрен способ предварительной отгонки летучих компонентов из нефтей, что приводит к уменьшению содержания парафинонафтеновых углеводородов и улучшению качества получаемых битумов. В статье также приведены результаты экспериментальных исследований влияния окисления кислородом воздуха, повышения температуры процесса на пластичность битумов. Эффективность окисления битумов зависит от величины поверхности контакта между жидкой и газовой фазой. Ускорение процесса окисления достигается в 6-7 раз при хорошем перемешивании реагирующих фаз. The article also presents the results of experimental studies of the effect of oxidation with atmospheric oxygen, an increase in the process temperature on the plasticity of bitumen. The efficiency of bitumen oxidation depends on the size of the contact surface between the liquid and gas phases. Acceleration of the oxidation process is achieved 6-7 times with good mixing of the reacting phases.The article is devoted to the analysis and study of various methods of obtaining petroleum bitumen and improving the adhesion properties in various mineral materials. Using the example of the Astrakhan gas processing plant, the effectiveness of the addition of additives - nitrogen-, sulfur-containing substances, elemental sulfur, etc. - to improve the adhesion properties of bitumen to mineral materials is shown. The analysis of the effect of temperature differences in summer and winter on the binding properties of bitumen is carried out. A method for preliminary stripping of volatile components from oils is considered, which leads to a decrease in the content of paraffin-naphthenic hydrocarbons and an improvement in the quality of the obtained bitumen.

scholarly journals KONTRIBUSI PEMANFAATAN MEDIA AUDIO AKSI TERHADAP PENGEMBANGAN KEMAMPUAN BERBAHASA PADA ANAK USIA DINI

2017 ◽  
Vol 5 (1) ◽  
pp. 51
Author(s):  
Faiza Indriastuti
Keyword(s):  
Early Childhood ◽  
Experimental Method ◽  
School Environment ◽  
Language Skills ◽  
Language Ability ◽  
The Family ◽  
Development Of Language ◽  
User Friendly ◽  
Stimulation Of

AbstractDevelopment of early childhood language is very important in developingthe communication and interaction skills with others. Stimulation of the development of language skills can be done in the family and school environment. The purpose of this study is to determine the extent of contributionof media audio AKSI utilization in developing early childhood language ability. This study uses an experimental method to early childhood that using media audio AKSI as a learning treatment. The result of this study revealed that media audio AKSI has a signi cantly contribution for developing early childhood’s languange skills because enabling to improve the quality of children’s learning achievements, enabling to make teacher more productive, enabling to provide alternative learning media that more user friendly, and enabling to the ease of audio  les storage, retrieval, and utilization makes learning become more  exible. AbstrakPengembangan berbahasa anak usia dini sangat penting dilakukan untuk mengembangkan keterampilan berkomunikasi dan berinteraksi dengan orang lain. Stimulasi pengembangan kemampuan berbahasa tersebut dapat dilakukan, baik di lingkungan keluarga maupun lingkungan sekolah. Tujuan penelitian ini adalah mengetahui sejauhmana kontribusi pemanfaatan media audio AKSI terhadap pengembangan kemampuan berbahasa anak usia dini. Penelitian ini menggunakan metode eksperimen terhadap peserta didik usia dini melalui treatmen penggunaan media audio AKSI dalam pembelajaran. Hasil penelitian ini mengungkapkan bahwa media audio AKSI memberikan kontribusi yang cukup besar terhadap pengembangan kemampuan berbahasa anak usia dini karena mampu meningkatkan kualitas hasil belajar anak, mampu membuat pendidik lebih produktif, dan mampu memberikan alternatif media pembelajaran yang lebih user friendly, dan kemudahan penyimpanan, pengambilan, dan pemanfaatan  le audio menjadikan pembelajaran menjadi lebih  eksibel. 

scholarly journals Studi Karakteristik Campuran AC-Base Menggunakan Batu Gunung Pura Lau Kecamatan Tikala

2021 ◽  
Vol 3 (2) ◽  
pp. 247-255
Author(s):  
Dede Novit Senolinggi ◽  
Alpius ◽  
Charles Kamba
Keyword(s):  
Test Object ◽  
Coarse Aggregate ◽  
Stability Index ◽  
Fine Aggregate ◽  
Regional Government ◽  
Test Tool ◽  
Marshall Test ◽  
Bitumen Content ◽  
Local Residents ◽  
Asphalt Content

This study is to get character each of Laston base mixture using the Mount Pura Lau stone, Tikala District. The methodology in this study is to test each character of the sample to be tested for its, whether it is coarse aggregate, fine aggregate, filler, and asphalt. After testing each character, we will design the composition of the mixture for the manufacture of rough Laston Base (AC-BASE) specimens and obtain several variants of asphalt content, namely 4.5%, 5%, 5.55%, 6%, and 6.5%. After getting the composition, the test object will be made immediately. After the object has been made, it is time to test with Marshall test tool to obtain the residual Marshall Immersion / Stability Index (SMS) or the durability of the mixture using the optimum bitumen content. The results of the optimum asphalt content were 5.5%, MQ 906.88 Kg / mm and immersion index (IP) 96.06% which showed that met the requirements, namely 90% and meets the specifications of Bina Marga. So that it can be used as a recommendation to the regional government and local residents.

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