scholarly journals ANALISA KEKUATAN AGREGAT KlAS A MATERIAL KABUPATEN SOLOK

2019 ◽  
Vol 2 (2) ◽  
Author(s):  
Masril Masril
Keyword(s):  
Road Construction ◽  
Relative Strength ◽  
Test Results ◽  
The Road ◽  
Coarse Aggregates ◽  
Class A ◽  
Weight Content ◽  
Laboratory Test Results ◽  
On The Road ◽  
Pavement Thickness

In order to realize the goal of development between an area to another region through land transportation, it is very important in the construction of road facilities. In civil construction science, material that can be used as material greatly determines the quality and quantity of the construction.Base construction or foundation layer is very besides as a foundation layer also to bear the burden of vehicles or traffic that passes through the construction of the road, so that material is needed quality.For the implementation of planning for pavement thickness of pavement construction layers, it is necessary to consider all the factors that can affect road construction such as road function, age of plan, traffic, carrying capacity of land, regional factors, surface index (IP), equivalent numbers, average daily traffic, Pavement Thickness Index and Relative strength Coefficient.In making road construction, the material used determines the quality of the road, so in the implementation of road construction it is necessary to carry out laboratory testing, which in the labor test discussed is coarse aggregates originating from Solok Sumatra B arat district, which will later be used for Base Class A on the road. The implementation of the Tests that the authors carried out was the calculation of the aggregate class A class proportion, Aggregate Specific Gravity, Compaction Test of the Base Class A aggregate mixture, Laboratory CBR Testing, and CBR Plan determination.The test results obtained can be a recommendation whether or not the aggregate can be used. Laboratory test results were obtained from the results of the testing of aggregate Class A material derived from solok. Testing the aggregate proportion of base A meets the requirements because it enters the filter 2 "to filter 200, Testing the aggregate density obtained density 2,685, Testing for aggregate compaction obtained Weight Content = 2.763% and Optimum moisture content = 5.75%. From the value of the above test results it can be concluded that the coarse aggregates originating from Solok can be used for Base Class A on Road construction work.

Analisis Gradasi Penggunaan Material Agregat Base Class A Spesifikasi BinaMarga 2010 Rev 3 Proyek Pelebaran Jalan Sp. Ujung Aji – Batas Kota Kabanjahe

2019 ◽  
Vol 3 (1) ◽  
Author(s):  
Brian Baya Sembiring. ST ◽  
Parada Afkiki Eko Saputra, ST,MT
Keyword(s):  
Road Construction ◽  
Analysis Data ◽  
Road Surface ◽  
The Road ◽  
Class A ◽  
On The Road ◽  
Observation Method ◽  
The Right ◽  
The Given ◽  
Filter Analysis

Road is a land transportation infrastructure that covers all parts of the road, including complementary buildings and equipment intended for traffic. Road Structure Improvement is one project that aims to improve the quality of roads. As the object of work to be studied is the widening of the sp. Ujung Aji - Limits of the City of Kabanjahe. Road construction with a flexible layered pavement with cover or without overlays is usually often damaged such as: cracks, hollows, bumps on the road surface. In other conditions it is often seen that the grooves of the former water flow to the subgrade are visible. The situation is more extreme and often occurs, namely the road surface peels to reach the foundation layer, so that the aggregate looks scattered. This study uses the direct observation method in the widening project of Jalan Simpang Ujung Aji - Bts. Kabanjahe City. This research was carried out at the time of laying and compaction of the bottom road foundation layer such as Base B and Base A. Activities carried out included data collection, data processing, analysis and observations in the Laboratory. The results of the filter analysis of rough gradations are good, which is in the middle between the given gradation boundaries, does not coincide and does not come out of the given gradation limit. Based on aggregate filter analysis data, it can be concluded that the results of the gradation of aggregate class A percent are retained and passed the filter in accordance with the general specifications of Bina Marga 2010 revision 3 and according to class A aggregate planning. the specimen is completely waterless, so the weighing results in the right balance.

scholarly journals THE PENETRATION OF ENGINEERING BY ECONOMICS: McFADDEN AND THE TRANSFORMATION OF ROAD DEMAND ESTIMATION

2021 ◽  
Vol 43 (2) ◽  
pp. 262-278
Author(s):  
Ariane Dupont-Kieffer ◽  
Sylvie Rivot ◽  
Jean-Loup Madre
Keyword(s):  
Road Network ◽  
Road Construction ◽  
Demand Estimation ◽  
Demand Modeling ◽  
The Road ◽  
Collective Decisions ◽  
The Face ◽  
Decision Making Processes ◽  
On The Road ◽  
The 1960S

The golden age of road demand modeling began in the 1950s and flourished in the 1960s in the face of major road construction needs. These macro models, as well as the econometrics and the data to be processed, were provided mainly by engineers. A division of tasks can be observed between the engineers in charge of estimating the flows within the network and the transport economists in charge of managing these flows once they are on the road network. Yet the inability to explain their decision-making processes and individual drives gave some room to economists to introduce economic analysis, so as to better understand individual or collective decisions between transport alternatives. Economists, in particular Daniel McFadden, began to offer methods to improve the measure of utility linked to transport and to inform the engineering approach. This paper explores the challenges to the boundaries between economics and engineering in road demand analysis.

Strategies for Promoting the Use of Concrete Pavements in Tanzania: Technical and Institutional Considerations

2008 ◽  
Vol 31 (1) ◽  
pp. 53-62
Author(s):  
D.A. Mfinanga ◽  
H. Bwire
Keyword(s):  
Road Construction ◽  
Cost Effective ◽  
Petroleum Products ◽  
Concrete Pavements ◽  
Construction Technology ◽  
The Road ◽  
Competing Demands ◽  
Resource Requirements ◽  
On The Road ◽  
Economic Developments

High-type roads in Tanzania have been predominantly of asphaltic concrete construction. This ever enlarging and ageing asphaltic road network represents increasing resource requirements on the road agency in the form of maintenance. Limited resources coupled with the ever sky-rocketing costs of petroleum products and the competing demands of social economic developments, presupposes the need to look for alternative road construction technology that is more cost-effective and resource optimising. Experience gained from developed and some developing countries where concrete pavements have been widely used suggests the potential of this type of pavement in many developingcountries. This paper discusses the technical aspects of design and construction- and maintenance-related aspects of concrete pavements. The discussion extends further to highlight issues pertaining to the performance of concrete pavements and strategies for promoting the use of concrete pavements in Tanzania. Conclusions and recommendationsare made with suggestions on how to start implementing the proposed strategies.

scholarly journals KAJIAN BAHAN TAMBAH ATERNATIF SERAT ECENG GONDOK TERHADAP CAMPURAN LATASIR SAND SHEET KELAS A SPESIFIKASI SEKSI-6 2010 BINA MARGA

UKaRsT ◽  
2019 ◽  
Vol 3 (2) ◽  
pp. 68
Author(s):  
Dwi Kartikasari ◽  
Ilham Sudarso
Keyword(s):  
Water Hyacinth ◽  
Road Construction ◽  
Cellulose Fiber ◽  
Coarse Aggregates ◽  
Class A ◽  
Fine Aggregates ◽  
Asphalt Content ◽  
Sand Sheet ◽  
Marshall Stability ◽  
Water Hyacinth Fiber

Asphalt sand layer (Latasir) is a layer of road construction consisting of coarse aggregates, fine aggregates, fillers and hard asphalt, which are mixed, spread, and compacted in hot conditions at certain temperatures. In this study is the use of water hyacinth fiber in a mixture of thin layer sand sheet sand grade grade A. The purpose of this study was to determine the process of making test specimens with ingredients added to water hyacinth fiber and the process of testing specimens with ingredients added to water hyacinth fiber. The test was carried out by adding water hyacinth fibers in the sand sheet class A latasir mixture. And with the addition of water hyacinth fiber variations of 0.6%, 0.9%, 1.2% taken from asphalt content. The final result of this research was Marshall evaluation which was obtained for the effect of the addition of water hyacinth cellulose fiber in this study showed an increase in Marshall stability value of 27.29% with a mixture of 1.2% water hyacinth, plastic fatigue (Flow) decreased by -23 , 89% with a mixture of 0.9% water hyacinth, cavity filled in the mixture (Void in the Mix) increased by 18.65% with a mixture of 1.2% water hyacinth, cavity filled with asphalt (Void Filled With Asphalt) decreased by -8.74% with a mixture of 1.2% water hyacinth, cavity in aggregate (Void In Mineral Aggregate) increased by 7.80% with a mixture of 1.2% water hyacinth, and Marshall Quotient increased by 71.78% with a mixture of 0.9% water hyacinth. These results indicate that water hyacinth fiber can be used as an ingredient to add a mixture of latasir sand sheet class A specifications of clan development. Keywords: sand sheet class A sandflies, Marshall Test Index, water hyacinth fiber, stability, flow, Marshall Quotient.

scholarly journals STUDI PERENCANAAN TEBAL PERKERASAN KONSTRUKSI JALAN RAYA (MENGGUNAKAN METODE BINA MARGA) PADA RUAS JALAN UMASUKAER DI KABUPATEN MALAKA

2019 ◽  
Vol 2 (1) ◽  
pp. 75
Author(s):  
Philipus Resato Nahak ◽  
Yosef Cahyo ◽  
Sigit Winarto
Keyword(s):  
Road Construction ◽  
Traffic Volume ◽  
Traffic Density ◽  
The Road ◽  
Technical Requirements ◽  
Road Section ◽  
Road Capacity ◽  
Data Survey ◽  
Pavement Thickness

The increase in traffic volume will cause a decrease in service due to decreased road capacity due to an increase in side constraints and due to the increase in traffic volume itself, which will ultimately cause the level of road saturation to increase. The situation occurred in the Umasukaer road section of the Malacca Regency. Therefore it is necessary to address improvements in the quality of the road in order to meet the feasibility of transportation facilities by taking into account the existing technical requirements. The results of planning found that through the 2015 LHR survey data with a prediction of an increase in traffic density of 6% per year, the LHR was obtained with a planned age of 7 years = 2540.7 vehicles/day/department and a 20-year plan life LHR = 5419.1 ked/day / major. The results of a gradual construction planning pavement study can be concluded that the planning model that has been designed is effective in strengthening road construction in accordance with existing technical requirements and efficient in terms of financing. The final results of gradual construction pavement thickness results are: Ashburton thickness (MS 744) = 8 cm, Ashburton (MS 744) = 13 cm, broken stone (CBR 100) = 20 cm, Sirtu (CBR 50) = 10 cm and CBR subgrade 5%. Pertambahan volume lalu lintas akan menyebabkan penurunan layanan diakibatkan menurunnya kapasitas jalan karena adanya peningkatan hambatan samping maupun karena beratambahnya volume lalu lintas itu sendiri yang pada akhirnya akan meyebabkan tingkat kejenuhan jalan meningkat. Keadaan tersebut terjadi ruas jalan Umasukaer Kabupaten Malaka, oleh karena itu perlu adanya penanganan perbaikan kualitas jalan agar memenuhi segi kelayakan sarana transportasi dengan memperhatikan syarat-syarat teknik yang ada. Hasil perencanaan didapatkan bahwa melalui data survey LHR tahun 2015 dengan prediksi peningkatan kepadatan lalu lintas sebesar 6% pertahun maka didapatkan LHR dengan umur rencana 7 tahun = 2540,7 kend/hr/jurusan dan LHR umur rencana 20 tahun = 5419,1 ked/hr/jurusan. Hasil studi perencanaan perkerasan konstruksi bertahap dapat diambil kesimpulan bahwa model perencaaan yang telah dirancang efektif dalam memperkerasa konstruksi jalan sesuai dengan syarat teknis yang ada serta efisien dalam hal pembiayaan. Hasil akhir tebal perkerasan konstruksi bertahap diperoleh hasil: Ketebalan Asbuton (MS 744) = 8 cm, Asbuton (MS 744) = 13 cm, batu pecah (CBR 100) = 20 cm, Sirtu (CBR 50) = 10 cm dan CBR tanah dasar 5%.

Reaganomics: A Watershed Moment on the Road to Trumpism

2019 ◽  
Vol 16 (1) ◽  
Author(s):  
John Komlos
Keyword(s):  
New York ◽  
Wall Street ◽  
The Road ◽  
Blue Collar Workers ◽  
Class A ◽  
Long Run ◽  
On The Road ◽  
Socio Economic Impact ◽  
The New Deal ◽  
Trump Administration

Abstract The socio-economic impact of Reaganomics and its long-run deleterious legacy is documented. The empirical evidence indicates that the tax cuts of 1981 and 1986 failed to have an effect on economic growth. GDP did snap back to its potential but did not accelerate beyond the rates achieved in prior or subsequent decades. The supposed incentives of supply-side economics failed to materialize. People did not work more, they did not save or invest more than they did before, and the benefits trickled down like molasses and got stuck at the very top of the income distribution. Reagan’s presidency was a watershed in US economic development in the sense that it reversed many of the accomplishments of the New Deal and inaugurated an era in which low-skilled men’s wages began a long period of decline. His true legacy is a dual economy that accompanied the hollowing out of the middle class, a more business-friendly regulatory framework for Wall Street that ultimately led to the financial crisis, a stupendous increase in the national debt from 30% to 50% of GDP that put it on a path such that by 2012 it exceeded 100%, anti-statism that contributed to the rise of Trumpism, a remarkable rise in inequality that gave rise to an oligarchy, and the neglect of blue-collar workers who eventually became Hillary Clinton’s “deplorables.” Reagan put the economy on a trajectory that ultimately, even if not inevitably, led to the triumph of Trumpism and an economy of malaise [Johnston, David Cay, 2018. It’s Even Worse Than You Think: What the Trump Administration Is Doing to America. New York: Simon & Schuster.].

scholarly journals Thermal Analysis-Based Field Validation of the Deformation of a Recycled Base Course Made with Innovative Road Binder

Materials ◽  
2021 ◽  
Vol 14 (20) ◽  
pp. 5925
Author(s):  
Grzegorz Mazurek ◽  
Przemysław Buczyński ◽  
Marek Iwański ◽  
Marcin Podsiadło
Keyword(s):  
Numerical Simulation ◽  
Thermal Properties ◽  
Temperature Distribution ◽  
Cross Section ◽  
Thermal Analyses ◽  
The Road ◽  
Laboratory Test Results ◽  
Base Course ◽  
On The Road ◽  
Foamed Bitumen

The deformation of the cold recycled mixture with foamed bitumen in a recycled base with an innovative three-component road binder and foamed bitumen is analysed. Numerical simulation results for the pavement constructed, based on laboratory test results, were verified against the data from the monitoring system installed on the road trial section. In addition, environmental effects, such as air temperature and humidity levels in the pavement structure layers, were considered. Thermal analyses were conducted to identify the thermal properties of the pavement materials under steady heat transfer rate. Determining temperature distribution in the road cross-section in combination with relaxation functions determined for individual pavement layers contributed to the high effectiveness of the numerical simulation of deformation and displacement in the recycled base and the entire pavement. The experimental method of identifying thermal properties allows a fast and satisfactory prediction of temperature distribution in the pavement cross-section.

scholarly journals SERAT ECENG GONDOK SEBAGAI BAHAN ALTERNATIF ADMIXTURE PADA LASTON TIPE XI SNI 03-1737-1989 DITINJAU TERHADAP NILAI-NILAI UJI MARSHALL

Jurnal CIVILA ◽  
2018 ◽  
Vol 3 (2) ◽  
pp. 154
Author(s):  
Errine Yulia Rizqi Intanti ◽  
Zulkifli Lubis
Keyword(s):  
Water Hyacinth ◽  
Asphalt Mixture ◽  
Road Construction ◽  
Flexible Pavement ◽  
The Road ◽  
Concrete Layer ◽  
Wide Range ◽  
On The Road ◽  
Marshall Stability

In Indonesia, the road construction has experienced a fairly good development. From a wide range of road constructions, flexible pavement is the most chosen one because its characteristics: easy, fast, and efficient. However, flexible pavement has many weaknesses, for example the premature damage on the road surface after some time passed by the traffic so that the road cannot reach the planned age. For that, it is done a research to add a hot asphalt mixture material that aims to improve the quality of the mixture results. The selected ingredient is natural water hyacinth. The method used is trial and error with reference of SNI 03-1737-1989. Variations used are 2%, 4%, 6%, 8% and 10% of the asphalt weight, asphalt level used is 5.72 %. Of the 5 variations of mixture used on Type XI Asphalt Concrete Layer, it is obtained the result that the water hyacinth fiber level which has the best score and meet the specifications of SNI 03-1737-1989 is on the percentage of 6% which obtained from calculation data using graphs and regression model where Marshall Stability is equal to 644,46 Kg, flow 3,39 mm, VMA (voids in the mineral aggregate) is equal to 13,83 %, VFWA (voids filled with asphalt) is equal to 65,35%, VIM (voids in the mix) is equal to 2,52 %, density of 2.31 gr/cc, and Marshall Quotient of 164.03 Kg / mm.

scholarly journals ANALISA TEBAL PERKERASAN LENTUR PADA RENCANA PENINGKATAN JALAN RUAS LEGUNDI – PERTIGAAN BUNDER

2019 ◽  
Vol 2 (2) ◽  
pp. 322
Author(s):  
Fandra Andriansyah P ◽  
Sigit Winarto ◽  
Yosef Cahyo Setianto Poernomo ◽  
Agata Iwan Candra
Keyword(s):  
Flexible Pavement ◽  
California Bearing Ratio ◽  
Topographic Map ◽  
The Road ◽  
Final Project ◽  
Class A ◽  
Road Section ◽  
Full Circle ◽  
Pavement Thickness ◽  
General Work

The final project is Analysis of Flexible Pavement Thickness in the Plan for Improvement of Legundi Road Section - Bunder KM.5 + 700 to 13 + 700 STA. 0 + 000 to 4 + 000which comprised the road geometrics, flexible pavement depth completed with the budgeting. A topographic map was employed to make a geometric design. Traffic data of 2018, rainfall data of 2018, and California Bearing Ratio (CBR) data were needed to design the flexible pavement depth. The basic itemized cost of wages, materials, tools, and work itemized cost from General Work BinaMarga of East Java Province Division IV (Surabaya, Gresik, Sidoarjo, Mojokerto, Jombang) were needed to find out the budget. Chosen alternative flexible pavement depth of 10 cm asphalt-concrete MS 744 surface, 20 cm Cement Tread Base (CTB) base, and 50 cm sand-aggregate class A (CBR 70) sub-base.The calculations result in PI 01 Full-Circle bend and PI 02 Full-Circle; at IDR 14.745.341.000.Laporan Akhir ini adalah Analisa Tebal Perkerasan Lentur Pada Rencana Peningkatan Jalan Ruas Legundi – Pertigaan Bunder KM.5+700 s/d 13+700 STA. 0+000 s/d 4+000 yang bertujuan untuk menghitung tebal perkerasan lentur jalan, menghitung geometric jalan dan rencana anggaran biaya proyek. Peta topografi sebagai dasar untuk merencanakan geometric jalan. Data lalu lintas tahun 2018, data curah hujan tahun 2018, data California Bearing Ratio (CBR) untuk merencanakan tebal perkerasan lenturjalan. Data Harga Satuan Dasar upah, bahan, dan alat serta Harga Satuan Pekerjaan dari Departemen Pekerjaan Umum Bina Marga Jatim kelompok IV (Surabaya, Gresik, Sidoarjo, Mojokerto, Jombang) digunakan untuk perhitungan Rencana Anggaran Biaya. Berdasarkan perhitungan didapatkan tebal perkerasan lentur alternative terpilih untuk surface 10cm laston MS 744, base 20 cm Cement Tread Base (CTB) ,serta sub base 50 cm Sirtukelas A (CBR 70). Bentuktikungan PI 01 Full-Circle, dan PI 02 Full-Circle. Biaya yang diperlukanadalahsebesarRp 14.745.341.000,-.

scholarly journals ROADWAY ROUGHNESS RESEARCH AND CAUSES DETERIORATION ANALYSIS

2017 ◽  
Vol 1 (48) ◽  
pp. 251-257
Author(s):  
D. O. Pavlyuk ◽  
V. P. Tereshchuk ◽  
V. S. Chapovskyi
Keyword(s):  
Detailed Analysis ◽  
Transverse Crack ◽  
Road Construction ◽  
Transverse Cracks ◽  
Research Results ◽  
The Road ◽  
Road Profile ◽  
On The Road ◽  
The City

The article deals with modern directions of domestic and foreign smoothness research coverage on the roads.  The problem of causes changes establishing in smoothness coverage related to the irregularities in the procedure of road construction layers is highlighted. The research results of the trafficway smoothness and its causes deterioration analysis, performed by operation of roads and airfields laboratory at National Transport University on research road area H-18 around the city Buchach is shown.  By the research results the road profile is drawn and the detailed analysis of road topping smoothness changes during road operation is done. Samples at the specific points on the road topping is taken: in one place it is a transverse crack, in another – without noticeable defects. It is established that road profile hollows and transverse cracks caused by black layers uneven thickness along the road.

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