scholarly journals Analysis Mixed Layer Asphalt Surface as Asbuton Ac-Wc Characteristics of Marshall

2020 ◽  
Vol 3 (2) ◽  
pp. 132-143
Author(s):  
Huda Alfian Aunur Hasyir ◽  
Sapto Budi Wasono
Keyword(s):  
Asphalt Concrete ◽  
Road Construction ◽  
Processing Plant ◽  
Road Maintenance ◽  
Test Results ◽  
Additional Material ◽  
Asphalt Mix ◽  
Natural Asphalt ◽  
Expected Benefits ◽  
Aggregate Material

Natural asphalt is asphalt obtained somewhere in nature, and can be used as obtained or with little processing. No natural asphalt obtained in the mountains like asphalt in Buton island called Asbuton. Asphalt Buton island is a mixture of bitumen material with other mineral materials in the form of rocks. Because asbuton is so sajaa material found in nature, the levels of bitumen dikandungnyaa greatly varies from low to high. To overcome this, then asbuton began to be produced in various forms at the processing plant asbuton. To reduce the use of natural asphalt eat more steps to do research on utilizing asbuton with the composition 6%, 8%, 10%. The purpose of this study is 1.) Determine the material characteristics LGA Asbuton can meet the specifications of Highways in 2018 on a mix of AC-WC 2.) Determine the value of Optimum Asphalt Content on asphalt concrete AC-WC (Asphalt Concrete - Wearing Course) with extra material LGA Asbuton 3.) Knowing how the performance of asphalt concrete AC-WC with additional material and bitumen 60/70 Asbuton terms of Marshall Test. The study was conducted with an experimental method through laboratory testing. The expected benefits of this research is the discovery of optimizing the use of Asbuton for at the time of execution of the work of new road construction or road maintenance and provide alternative natural aggregate material consumption to a minimum.The test results for the optimum bitumen content KAO on the composition 1 Asbuton 6% with a variation of bitumen (5.05% 5.55% 6.05% 6.55% 7.05%) of the chart can be found KAO Marshall 6.2%. Composition 2 Asbuton 8% with a variation of asphalt (5.0% 5.5% 6.0% 6.5% 7.0%) on the graph can be found KAO Marshall 6.3%. Composition 3 Asbuton 10% with a variation of asphalt (5.0% 5.5% 6.0% 6.5% 7.0%) on the graph can be found KAO Marshall 6.4%. Variations in the composition of 6%, 8% and 10% meet all the requirements of the properties of hot asphalt mix can specification of Highways in 2018.

The Effectiveness of Using RAA-TA Additives for the Preparation of Warm Asphalt Concrete

2017 ◽  
Vol 865 ◽  
pp. 259-262 ◽  
Author(s):  
Valentina V. Yadykina ◽  
Anatoly M. Gridchin ◽  
Anna Trautvain ◽  
Vladimir Kholopov
Keyword(s):  
Asphalt Concrete ◽  
Water Saturation ◽  
Asphalt Mixture ◽  
Road Construction ◽  
State Standards ◽  
Adhesive Properties ◽  
Preparation Temperature ◽  
Asphalt Mix ◽  
Positive Effect ◽  
Physical And Mechanical Characteristics

The possibility to reduce the temperature during manufacturing and the temperature of compaction of asphalt mix by introducing the specially designed RAA-TA (Road Adhesive Additive for the warm asphalt concrete) additive to the bitumen has been demonstrated. Reducing the preparation temperature for asphalt mixture to 130 ° C, and the compaction temperature of the hot mix to 100 ° C, by using the additives, the characteristics of warm asphalt concrete meet the requirements of State Standards for hot asphalt concrete. The results indicate that the administration of additives improves strength at 20 and 50 ° C and reduces this index at 0 ° C, and with increasing the concentration of the researched additive its positive effect increases. The greatest effect of the additive is observed on such parameters as water saturation and water resistance of asphalt concrete, which is obviously connected with the improved encapsulation of mineral materials by bitumen due to the reduction of its viscosity and improvement of adhesive properties due to the additive composition. This will reduce the fuel consumption, the emissions of harmful substances into the atmosphere during the bituminous mixture production and asphalt coating making, as well as increase the distance of its transportation to the work site. At the same time the physical and mechanical characteristics of asphalt concrete with the addition of RAA-TA do not deteriorate. As a result of reducing the temperature of laying and compacting of asphalt mix the season of road construction can be extended and the pressure on the environment can be significantly reduced.

scholarly journals Effects of Asphalt Mix Design Properties on Pavement Performance: A Mechanistic Approach

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Ahmad M. Abu Abdo ◽  
S. J. Jung
Keyword(s):  
Asphalt Concrete ◽  
Asphalt Pavement ◽  
Binder Content ◽  
Mix Design ◽  
Pavement Performance ◽  
Dynamic Shear Modulus ◽  
Test Results ◽  
Analysis Software ◽  
Mechanistic Approach ◽  
Asphalt Mix

The main objective of this study was to investigate the effects of hot mix asphalt material properties on the performance of flexible pavements via mechanistic approach. 3D Move Analysis software was utilized to determine rutting and cracking distresses in an asphalt concrete (AC) layer. Fourteen different Superpave mixes were evaluated by utilizing results of the Dynamic Modulus (|E⁎|) Test and the Dynamic Shear Modulus (|G⁎|) Test. Results showed that with the increase of binder content, the tendency of rutting in AC layer increased. However, with the increase of binder content, the cracking of AC layer lessened. Furthermore, when different binder grades were evaluated, results showed that with the increase of the upper binder grade number, rutting decreased, and with the increase of the lower binder grade number, rutting increased. Furthermore, analysis showed that with the increase of the lower binder grade number, higher percent of bottom up cracks would result. As a result of the analysis, binder grade should not be solely considered for cracking in AC layer; binder content and aggregate structure play a big role. Finally, results illustrated that the mechanistic approach is a better tool to determine the performance of asphalt pavement than commonly used methods.

scholarly journals Extending the Service Life of Pavements

2018 ◽  
Vol 26 (1) ◽  
pp. 25-32
Author(s):  
Ivan Gschwendt
Keyword(s):  
Asphalt Concrete ◽  
Building Materials ◽  
Road Construction ◽  
Pavement Management ◽  
High Modulus ◽  
Pavement Management System ◽  
Asphalt Mix ◽  
Degradation Models ◽  
The Cost ◽  
Whole Life Cost

Abstract The cost of road construction and expenditures on the maintenance of pavements, i.e., their whole life cost, represents a lot of money. The paper describes a procedure for a pavement management system with degradation models and estimates the length of time for the rehabilitation of an asphalt pavement. Using a theory of pavement mechanics, we calculated the stresses and strains on the layers of two pavement models. High modulus asphalt concrete, an asphalt mix with a high binder content, and an asphalt mix with binder modifications are new road building materials. Prolonging the time for the rehabilitation of pavements is possible.

scholarly journals Performance Characteristics of Fiber Modified Asphalt Concrete Mixes

2014 ◽  
Vol 15 (1) ◽  
pp. 38-50 ◽  
Author(s):  
Manoj Shukla ◽  
Devesh Tiwari ◽  
K. Sitaramanjaneyulu
Keyword(s):  
Tensile Strength ◽  
Asphalt Concrete ◽  
Permanent Deformation ◽  
Asphalt Binder ◽  
Material Strength ◽  
Test Results ◽  
Modified Asphalt ◽  
Asphalt Mix ◽  
Indirect Tensile ◽  
Fatigue Characteristics

ABSTRACT Asphalt binder modification is one of the approaches taken to improve pavement performance. In addition it may also be improved through the addition of fibers to Asphalt mix that enhances material strength and fatigue characteristics while adding ductility. Due to their inherent compatibility with Asphalt concrete and excellent mechanical properties, fibers offer an excellent potential for modification of Asphalt concrete mix. To investigate the behavior of Fiber Modified Asphalt Concrete Mixes (FMACM), a preliminary study has been done to determine the feasibility of modifying the behavior of a Asphalt Concrete (AC) mixture through the use of Glass fiber and Polyester fiber. The purpose of this study was to identify and understand the factor that is responsible for improving the behavior of FMACM. Asphalt concrete samples were prepared and tested in the laboratory to evaluate the various mixture characteristics. The conclusions drawn from the study on testing of fiber-modified mixes are that fiber modified Asphalt mixtures have shown increased stiffness and resistance to permanent deformation. Fatigue characteristics of the mixtures were also improved. Fibers used in the study were of high tensile strength therefore test results of FMACM have shown higher indirect tensile strength and improved skid resistance for paving applications.

scholarly journals Differentiated sources of funding road infrastructure

2018 ◽  
Vol 239 ◽  
pp. 08003
Author(s):  
Marina Shibaeva ◽  
Ella Okolelova ◽  
Oleg Shalnev
Keyword(s):  
Asphalt Concrete ◽  
Road Network ◽  
Road Construction ◽  
Capital Intensity ◽  
Payback Period ◽  
Road Infrastructure ◽  
Private Investments ◽  
Asphalt Mix ◽  
Facility Construction ◽  
The Cost

Article reveals the growing need for increased investment in projects for the modernization and development of the motor road network and identifies the problem of high capital intensity of road construction facilities and the duration of the investment payback period that hinder the inflow of private investments. By analyzing the economic aspects of road infrastructure, the authors have developed the economic and mathematical model for optimizing the placement of asphalt-concrete plants and the cost of producing the asphalt mix, the algorithm for optimizing the cost of road facility construction, the algorithm for selecting effective investment options for commercial roadside projects.

scholarly journals Influential Factors and Evaluation Methods of the Performance of Grouted Semi-Flexible Pavement (GSP)—A Review

2021 ◽  
Vol 11 (15) ◽  
pp. 6700
Author(s):  
Xiaogang Guo ◽  
Peiwen Hao
Keyword(s):  
Literature Review ◽  
Systematic Literature Review ◽  
Asphalt Concrete ◽  
Cement Mortar ◽  
Road Construction ◽  
Flexible Pavement ◽  
Evaluation Methods ◽  
Influential Factors ◽  
Future Research ◽  
Relative Evaluation

Grouted Semi-flexible Pavement (GSP) is a novel pavement composed of open-graded asphalt concrete grouted with high-fluidity cement mortar. Due to its excellent load-bearing and anti-rutting performance, it has great potential as anti-rutting overlay and surface in road construction. However, the understanding of GSP performance remains limited and pertinent findings are inconsistent. This article aims to provide a systematic literature review for the articles which were published between 2000 and 2020 on GSP, explore the problems in the recent research, identify knowledge gaps, and deliver recommendations for future research. The influential factors and the relative evaluation methods of GSP performance are summarized and discussed in this article.

Modelling of Flow Properties of Asphalt Mastics

2013 ◽  
Vol 752 ◽  
pp. 209-216 ◽  
Author(s):  
Róbert Géber ◽  
László A. Gömze
Keyword(s):  
Research Work ◽  
Road Construction ◽  
Test Results ◽  
Flow Properties ◽  
Rheological Models ◽  
Fine Grained ◽  
Mineral Particles ◽  
Asphalt Mastics ◽  
Rheological Modelling ◽  
Mineral Fillers

The present research work deals with the examination and rheological modelling of flow properties of asphalt mastics which are the most important components of asphalt concretes. Asphalt mastics are mixtures of fine grained mineral filler particles (d<0,063 mm) and bitumen, having a stabilizing role in asphalt mixtures and largely determining the cohesion between mineral particles and bitumen. During our examinations two types of mineral fillers – limestone and dolomite – as well as standard bitumen were tested, which are extensively used in Hungarian road construction. Asphalt mastic mixtures were prepared out of these materials and they were tested with dynamic shear rheometer (DSR). According to the test results, rheological models of mastics were determined. It has been established that at different test temperatures and shear rate ranges asphalt mastics behave as Herschel-Bulkley and Bingham-type materials.

Watertightness, cracking resistance, and self-healing of asphalt concrete used as a water barrier in dams

2013 ◽  
Vol 50 (3) ◽  
pp. 275-287 ◽  
Author(s):  
Yingbo Zhang ◽  
Kaare Höeg ◽  
Weibiao Wang ◽  
Yue Zhu
Keyword(s):  
Asphalt Concrete ◽  
Leakage Rate ◽  
Strain Rates ◽  
Self Healing ◽  
Test Results ◽  
Direct Tension ◽  
Coefficient Of Permeability ◽  
Tension Tests ◽  
Laboratory Test Results ◽  
Cracked Specimens

The coefficient of permeability of hydraulic asphalt concrete is in the range 10−8–10−10 cm/s. Laboratory test results show that triaxial specimens in axial compression can undergo axial strains up to 18% without any significant increase in permeability until approaching the compressive strength. For temperatures between 5 and 20 °C and strain rates between 2 × 10−3%/s and 5 × 10−3%/s, conventional hydraulic asphalt concrete can tolerate 1%–3% tensile strains before cracking in direct tension tests and strains up to 3%–4% in bending. At 20 °C the tensile and bending strains at cracking are 2–4 times higher than those at 0 °C, and at −20 °C they are approximately 0.2% and 0.8%, respectively. Asphalt concrete possesses pronounced crack self-healing properties. In the experiments, the crack leakage rate dropped 1–4 orders of magnitude within a few hours and the cracked specimens regained 55% of the intact tensile strength after only 1 day of self-healing. In summary, the comprehensive series of laboratory tests documents that asphalt concrete has characteristics that make the material extremely well suited for use in impervious barriers in dams, and the test results reported herein can be of great use in barrier design.

scholarly journals Analisis Kerusakan dan Perbaikan Jalan Beraspal pada Lapisan Asphalt Concrete-Wearing Course (AC-WC) di Kota Surabaya

2021 ◽  
Vol 1 ◽  
pp. 163-170
Author(s):  
Rindi Sekar Andika ◽  
Ari Widayanti
Keyword(s):  
Asphalt Concrete ◽  
Flexible Pavement ◽  
Road Maintenance ◽  
Class Iii ◽  
Literature Study ◽  
Dominant Type ◽  
High Severity ◽  
Different Types ◽  
Maintenance Work ◽  
Pavement Construction

AC-WC asphalt layer is a surface layer of flexible pavement construction that bears a direct load from the vehicle wheels. The increase in the number and load of traffic that occurs every year impacts road conditions and can cause damage. This requires analysis, repair and maintenance of roads for roads to function properly. The purpose of this study was to analyze road damage and provide alternative treatments for each road based on the type and level of damage that occurs. The method used was literature study, observation, documentation, and analysis with the PCI method. Observations were made on roads with class III flexible pavement in South Surabaya City. The results obtained were that the most dominant type of damage was crack damage, the level of road damage varies (low, medium, high severity) and there were different types of damage at the same point. The highest percentage and value of the damage were on Kembang Kuning Road and Pakis Tirtosari III Road. Based on the PCI method, the condition value of Dukuh Kupang XX Road was the lowest, at 25 (very poor). On Kembang Kuning Road and Pakis Tirtosari III Road maintenance work was needed, while Dukuh Kupang Road required road repairs. 

scholarly journals CRUSHED STONE MASTIC ASPHALT CONCRETE USING GRAYISH TECHNOLOGIES

2020 ◽  
pp. 18-25
Author(s):  
A. Kurlykina ◽  
V. Denisov ◽  
D. Kuznecov ◽  
E. Lukash
Keyword(s):  
Asphalt Concrete ◽  
Road Construction ◽  
Quality Criterion ◽  
Quality Criteria ◽  
Physicomechanical Properties ◽  
Crushed Stone ◽  
Road Asphalt ◽  
Mastic Asphalt ◽  
Used Oil ◽  
Stone Mastic Asphalt

One of the main reasons for reducing the service life of road asphalt pavements (the appearance and development of damage in the form of ruts, various kinds of plastic deformations, potholes, cracks, etc.) is the low quality of the used oil bitumen. The physicomechanical properties of road bitumen are subject to stricter requirements, especially for organic binders used for the production of crushed stone mastic asphalt (SMA), therefore, in authors’ view, the development of bitumen binders with enhanced physicomechanical properties is one of the key and most urgent tasks in road construction. This problem is solved by introducing various modifiers into the binder. This article presents the results of a study of bitumen modified by introducing technical sulfur into the composition. The effect of binder modification on the physicomechanical properties of road asphalt concrete is shown on the example of crushed stone mastic asphalt (SMA-20) relative to base samples made to control the dynamics of changes in the properties of composites made using sulfur-raising technologies. For a comprehensive assessment of the effectiveness of modifying crushed stone mastic asphalt concrete based on various binders, a generalized quality criterion is calculated, taking into account the calculated particular quality criteria and various values of the weight coefficients. The comparison and analysis of the obtained efficiency criteria is made.

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