scholarly journals ANALISIS PERKERASAN LENTUR DI ATAS TANAH EKSPANSIF

2019 ◽  
Vol 2 (1) ◽  
pp. 48-57
Author(s):  
Mukhlis Mukhlis ◽  
Yuhanis Yunus ◽  
Sofyan M. Saleh
Keyword(s):  
Expansive Soil ◽  
Flexible Pavement ◽  
Allowable Limit ◽  
The Road ◽  
Road Pavement ◽  
Swell Potential ◽  
Pavement Structure ◽  
Pavement Structures ◽  
On The Road ◽  
Base Soil

The segmented road of Bireuen-Takengon has often damaged in apart of its pavement structure due to the area of flexible pavement structure taken place upon an expansive soil that leads to depreciation caused by the influence of changes in the water level. The aim of this research method was to analyze the characteristics of the base soil underlying the pavement and to analyze the flexible pavement structure in the widening of the road. The observed area was Sta.70+175 s/d Sta.74+925 which taken place in Bener Meriah regency, sub-district of Timang Gajah. The results of USCS clarification show that the road of basal soil is included in the MH OH with a PI value of 25.42%, LL 64.25% with a potential level of development and activity belonging to the medium-high category and also having mineral types of Illite. From the analysis of KENPAVE software, the design of flexible pavement structures is based on data planning that has a maximum stress and deflection value, on the base soil, of 0.1814 kg/cm2 and 0.0585 cm respectively. Moreover, based on Job mix data the maximum value of stress and deflection is 0.2444 kg/cm2 and 0.0585 cm respectively in which both of two stress and deflections are within the allowable limit; which both of two stress and deflections are within the allowable limit; 7.8 kg/cm2 and 2.5 cm. The evaluation results of both data are feasible to be used as an improved design on the pavement as the pressure generated by the weight of the road pavement structure is 1.949 kg/cm2, while the swell pressure that occurs on subgrade is 1.805 kg/cm2. Hence, The flexible pavement structure on the road segment is still able to reduce the swell potential on expansive soil.

scholarly journals Analisis Tebal Lapis Perkerasan Jalan dengan Meninjau Sifat Fisik Agregat Lapis Fondasi Bawah pada Ruas Jalan Sofi-Wayabula Pulau Morotai. (Hal. 97-107)

2019 ◽  
Vol 5 (3) ◽  
pp. 97
Author(s):  
Nurul Fauziah Endah Ningtyas ◽  
Samun Haris
Keyword(s):  
Road Construction ◽  
Flexible Pavement ◽  
Relative Strength ◽  
Strength Coefficient ◽  
The Road ◽  
Human Needs ◽  
Road Pavement ◽  
Calculation Results ◽  
Pavement Structures ◽  
Base Course

ABSTRAKJalan sebagai sarana penunjang transportasi darat memiliki peran penting untuk memenuhi kebutuhan manusia. Salah satu material penting dalam pembuatan jalan adalah agregat. Sifat fisik agregat menjadi salah satu faktor penentu tebal lapisan struktur perkerasan. Ruas jalan Sofi–Wayabula adalah ruas jalan nasional strategis di Pulau Morotai dengan menggunakan perkerasan lentur. Agregat yang digunakan untuk lapis fondasi bawah pada ruas jalan ini adalah kombinasi agregat Eks. Palu dengan agregat Eks. Morotai. Tujuan dari penelitian ini adalah untuk menganalisis tebal lapis fondasi bawah berdasarkan koefisien kekuatan relatif ( ) yang didapat dari nilai CBR kombinasi agregat Eks. Palu dengan agregat Eks. Morotai dan agregat Eks. Palu pada struktur perkerasan lentur. Dari hasil perhitungan metode Manual Perkerasan Jalan 2017 didapatkan tebal lapis fondasi bawah sebesar 15 cm, bernilai sama, baik menggunakan kombinasi agregat Eks. Palu dengan agregat Eks. Morotai, maupun agregat Eks. Palu. Sedangkan, dengan menggunakan Pedoman Perkerasan Jalan Lentur 2011 didapat tebal lapis fondasi bawah sebesar 15,054 cm untuk kombinasi agregat Eks. Palu dengan agregat Eks. Morotai dan 14,608 cm untuk agregat Eks. Palu.Kata Kunci: perkerasan lentur, koefisien kekuatan relatif, lapis fondasi bawah. ABSTRACTRoads as a means of supporting land transportation have an important role to meet human needs. One of important material in road construction is aggregate. The aggregate physical properties become one of the determinants of the pavement thickness structure layer. The road segment of Sofi-Wayabula is a strategic national road in Morotai Island by using flexible pavement. The aggregate used for the sub-base course of the road is combination of aggregate Ex. Palu with Ex. Morotai aggregate. The purpose of this research is to analyze the thickness of the sub-base course based on relative strength coefficient  (a3) obtained from the value of CBR combination of aggregate Ex. Palu with Ex. Morotai aggregate and aggregate Ex. Palu on flexible pavement structures. From the calculation results of the Pavement Road Manual method 2017, the thick of sub-base course is 15 cm, have equal value using the combination of Ex. Palu aggregate with Ex. Morotai aggregate or the Ex.Palu aggregate. Meanwhile, by using Flexible Road Pavement Guideline 2011 the thickness of the sub-base course is 15,054 cm for combination of Ex.Palu aggregate with Ex. Morotai aggregate and 14,608 cm for Ex.Palu.Keywords: flexible pavement, relative strength coefficient, sub-base course.

scholarly journals Relationship of operating speed with pavement serviceability from the pavement condition index. Case of study: Barranquilla, Colombia

2020 ◽  
Vol 13 (37) ◽  
pp. 3904-3909
Author(s):  
Miguel Figueroa ◽  
Keyword(s):  
Surface Condition ◽  
Condition Index ◽  
Structural Function ◽  
Operating Speed ◽  
Surface Conditions ◽  
The Road ◽  
Road Pavement ◽  
Pavement Condition Index ◽  
Pavement Structures ◽  
On The Road

Objectives: The present research aims to find the relationship in the field that the road condition index has concerning its operating speed, based on the expected assumption that the worse the condition index, the lower the road operating speed will be. Methodology: The methodology used to carry out this research consisted in the estimation of the condition index (PCI) and the measurement of speeds in different road sections of the city of Barranquilla (Colombia), where a record of the surface conditions of the pavement from 0 when it was failed and 100 for pavement in excellent condition. In the case of speed recording, the plate method was used to obtain operating speeds. Then, using the UNALPCIA software, the value of the PCI of the evaluated road sections was estimated and then correlated with the operating speeds obtained in the field of those sections. Findings: The main findings obtained from the investigation consist of the effective relationship between the value of the PCI and the operating speed, having that the lower the condition index, the lower the operating speed on the road due to the presence of damage to the road pavement surface. Novelty: The study of the surface conditions of the pavement in the cities of Colombia is little studied, which leads to policies associated with the maintenance of pavement structures becoming late, given that the comfort and speed of operation allowed by these do not is appropriate, even though its structural function is still in force. Keywords: Condition index; comfort; policies; surface condition

scholarly journals Interaction of Physical Parameters and The Strength of Frost Blanket Course in Road Pavement Structure

2018 ◽  
Vol 13 (4) ◽  
pp. 416-428 ◽  
Author(s):  
Lina Bertulienė ◽  
Lina Juknevičiūtė–Žilinskienė ◽  
Henrikas Sivilevičius ◽  
Alfredas Laurinavičius
Keyword(s):  
Strength Properties ◽  
Physical Parameters ◽  
Light Weight ◽  
Falling Weight Deflectometer ◽  
The Road ◽  
Road Pavement ◽  
Pavement Structure ◽  
Pavement Structures ◽  
Falling Weight ◽  
Reliable Correlation

This paper determines the interaction between the physical indicators of frost blanket course and its deflection modulus, measured by static and dynamic devices. The Pilot Road has been selected to examine the strength properties (deflection module) of frost blanket course. A Pilot Road consisting of 27 road sections, divided into 5 different road structures. A Pilot Road has been selected to examine the strength properties (deflection module) of frost blanket course. In this research was determined the strength of frost blanket course in road pavement structures of Pilot Road by four devices: Falling Weight Deflectometer Dynatest 8000, Light Weight Deflectometers Prima 100 and ZORN ZSG 02 and Static Beam Strassentest. The results showed no reliable correlation between the deflection modulus, measured by different devices, and the physical indicators of the frost blanket course of the road pavement structures in Pilot Road.

Desain Perkerasan Jalan Sumberboto - Gununggede Blitar Menggunakan Metode Manual Desain

2021 ◽  
Vol 4 (2) ◽  
pp. 186
Author(s):  
Uminarsih Uminarsih ◽  
Yosef Cahyo Setianto Poernomo ◽  
Agata Iwan Candra ◽  
Fajar Romadhon
Keyword(s):  
Road Construction ◽  
Bottom Layer ◽  
Flexible Pavement ◽  
The Road ◽  
Total Budget ◽  
Road Pavement ◽  
Road Users ◽  
Road Section ◽  
Beach Tourism ◽  
On The Road

The road is an access that connects an area with other areas. With the road, mobility will be easier so that it has an impact on increasing or stabilizing the economy. The Sumberboto-Gunung Gede Blitar road section is one of the access roads to Tambakrejo beach tourism. To improve comfort and safety for road users, it is necessary to improve road quality. This study aims to plan the pavement on the Sumberboto-Gunung Gede Blitar road section. The planning is carried out on the condition of the heavily damaged pavement, with a service life of more than 10 years, the width of the road is 4 meters, the length of the road is 6 kilometers, the type of collector road is class II, and the type of pavement is laston. The planning carried out includes the addition of roads in the hills of Blitar Regency, the data used includes the condition of the sections on the road with calculations referring to the Design Manual Number 02/M/BM/2013 road pavement. The planning results obtained road construction with flexible pavement, with a specification of a surface layer of 10 cm, a layer of 20 cm for the top foundation, 25 cm for the bottom layer of the foundation. From this plan, a total budget of Rp. 13,572,808,084.00 (thirteen billion five hundred seventy-two million eight hundred thousand rupiah) is required. With these results, it can be used as a reference in realizing road construction on the Sumberboto-Gunung Gede Blitar road section.

Mechanical effects and paradoxical phenomena in the thermoelastic stress of the road pavement structures

2018 ◽  
pp. 128-145
Author(s):  
Volodynyr Mozghovyi ◽  
◽  
Viktor Gaidaichuk ◽  
Yurii Zaiets ◽  
Liudmyla Shevchuk ◽  
...  
Keyword(s):  
Thermoelastic Stress ◽  
The Road ◽  
Mechanical Effects ◽  
Road Pavement ◽  
Pavement Structures

scholarly journals The Limestone as a Materials Combination of Base Course on the Road Pavement

2021 ◽  
Vol 1125 (1) ◽  
pp. 012019
Author(s):  
Yosef Cahyo Setianto Poernomo ◽  
Sigit Winarto ◽  
Zendy Bima Mahardana ◽  
Dwifi Aprillia Karisma ◽  
Rekso Ajiono
Keyword(s):  
The Road ◽  
Road Pavement ◽  
Base Course ◽  
On The Road

scholarly journals STUDI PERBANDINGAN MENGENAI PERHITUNGAN BESARAN REGANGAN DI LAPISAN SUBGRADE AKIBAT BEBAN RODA KENDARAAN UNTUK JALAN RAYA KELAS I

2020 ◽  
Vol 3 (4) ◽  
pp. 1077
Author(s):  
Leonardo Lijuwardi ◽  
Gregorius Sandjaja Sentosa
Keyword(s):  
Flexible Pavement ◽  
Layer System ◽  
The Road ◽  
Strain Calculation ◽  
Road Pavement ◽  
Large Contact Area ◽  
Vehicle Loads ◽  
Pavement Layers ◽  
Road Data ◽  
Pavement Thickness

ABSTRACTMulti-layer systems theory is one of the concepts used in finding out the amount of strain and stress that occurs in the road pavement system due to vehicle loads. The purpose and goal of this study is to analyze the amount of strain that occurs on the pavement systems in Indonesia, especially in the subgrade position. The type of multi-layer system theory used to calculate the amount of strain includes the theory of one layer systems, two-layer systems and three-layer systems with data analyzed in the form of pavement thickness and type of pavement material.Based on this study, the value of strain obtained by the theory of one-layer system in some of the road data reviewed are 533.8658 microstrains, 361.3456 microstrains, 1577.987601 microstrains, 618,012 microstrains and 140.3075 microstrains. For research with two-layers systems, the results obtained are 1116.2920 microstrains, 544.322 microstrains, 1448.0839 microstrains, 734.1844 microstrains and 738.7226 microstrains. For research with three-layers system, results obtained are 72.20275278; 70.80346908; 192.9638366; 123.1150377dan 391.8845636 microstrains. The results with the calculation of one-layer system are very large because the modulus values of the subgrade layers are not reviewed and only pavement thickness is reviewed. As for calculations with the theory of two-layer systems, the results obtained are far greater than one-layer systems, due to the limitations of the graph to find the value of the ratio between thickness and large contact area. Calculation with the theory of three-layers system is a strain calculation which has a much smaller value compared to the theory of one-layer system and two- layer system. This is because this theory divides the calculated pavement layers into three layers, which is in accordance with the flexible pavement system which divides the pavement layers into three layers, so this calculation is the most ideal calculation because it approaches its original condition.ABSTRAKTeori sistem lapis banyak merupakan salah satu konsep yang digunakan dalam mencari tahu besaran regangan dan tegangan yang terjadi pada sistem perkerasan jalan raya akibat beban kendaraan. Maksud dan tujuan dari penelitian ini adalah untuk menganalisis mengenai besaran regangan yang terjadi pada jalan raya di Indonesia pada lapisan tanah dasar khususnya di posisi permukaan tanah dasar. Adapun jenis teori sistem lapis banyak yang digunakan untuk menghitung besaran regangan tersebut antara lain teori one-layer systems, two-layers systems dan three-layers systems dengan data yang dianalisis berupa tebal perkerasan dan jenis material perkerasan jalan.Berdasarkan penelitian ini, adapun nilai dari regangan yang diperoleh dengan teori one-layer system di beberapa data jalan yang ditinjau, antara lain 533.8658 mikrostrain, 361.3456 mikrostrain, 1577.987601 mikrostrain, 618.012 mikrostrain dan 140.3075 mikrostrain. Untuk penelitian dengan two-layers system diperoleh hasil yaitu 1116.2920 mikrostrain, 544.322 mikrostrain, 1448.0839 mikrostrain, 734.1844 mikrostrain dan 738.7226 mikrostrain. Untuk penelitian dengan three-layers system diperoleh hasil antara lain 72.20275278; 70.80346908; 192.9638366; 123.1150377 dan 391.8845636 mikrostrain. Hasil dengan perhitungan one-layer system sangat besar dikarenakan nilai modulus lapisan dari subgrade tidak ditinjau dan hanya meninjau tebal perkerasan. Adapun untuk perhitungan dengan teori two-layers system, hasil yang diperoleh jauh lebih besar daripada one-layer system, yang disebabkan keterbatasan dari grafik untuk mencari nilai perbandingan antara ketebalan dan luas kontak yang besar. Perhitungan dengan teori three-layers system merupakan perhitungan regangan yang memiliki nilai jauh lebih kecil dibandingkan dengan teori one-layer system dan two-layer systems. Hal ini dikarenakan teori ini membagi lapisan perkerasan yang dihitung menjadi tiga buah lapisan, yang sesuai dengan sistem perkerasan lentur yang membagi lapisan perkerasan menjadi tiga buah lapisan, sehingga perhitungan ini merupakan perhitungan yang paling ideal karena mendekati kondisi aslinya.

scholarly journals Thermal Analysis of Asphalt Concrete Pavements Heated with Amorphous Metal Technology

2018 ◽  
Vol 2018 ◽  
pp. 1-8 ◽  
Author(s):  
Cesare Sangiorgi ◽  
Cecilia Settimi ◽  
Piergiorgio Tataranni ◽  
Claudio Lantieri ◽  
Solomon Adomako
Keyword(s):  
Amorphous Material ◽  
Concrete Pavements ◽  
Road Maintenance ◽  
Warm Up ◽  
Physical Methods ◽  
The Road ◽  
Road Pavement ◽  
Heating Device ◽  
Critical Issues ◽  
On The Road

Undoubtedly, the most commonly used method for road maintenance includes the use of winter service vehicles to clear thoroughfares of snow and the spraying of chemicals to prevent ice formation on the road surface. The application of these traditional methods on road and airport pavements possesses numerous environmental, organizational, and technical challenges. To overcome these critical issues, new nontraditional technologies that act within the pavement, thereby increasing its temperature, have been developed. In relation to the heat source used, these are classified into chemical and physical methods. The purpose of this research is to study the temperature variation under the thermal transient process produced by the action of the physically heating device installed in the road pavement. The heating device is a ribbon, made of amorphous material, which is able to produce heat to warm up the pavement and its surface. Based on its principle of operation, it is classified among the nontraditional physical methods for the treatment of snow and ice. In this work, the performance of the heating ribbons on an experimental site at the G. Marconi International Airport in Bologna (Italy) is presented.

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