scholarly journals Influence of Water Immersion on Stability of AC-WC Mixed with Gondorukem Additional Material

2021 ◽  
Vol 921 (1) ◽  
pp. 012067
Author(s):  
D R G Kabo ◽  
M Tumpu ◽  
H Parung
Keyword(s):  
Asphalt Concrete ◽  
Immersion Time ◽  
Water Immersion ◽  
Asphalt Mixtures ◽  
Additional Material ◽  
Influence Of Water ◽  
Asphalt Content ◽  
The Stability ◽  
Marshall Stability ◽  
Time Decrease

Abstract One of the treatments that can be given to asphalt mixtures to determine the durability of the mixture is by water immersion. This study aims to analyze the stability value of Marshall mixture of AC-WC (Asphalt Concrete Wearing Course) by using modified Asbuton as a binder and gondorukem as added material due to water immersion. The method used in this research is experimental in the laboratory. AC-WC mixture is produced using modified Asbuton as a binder (Retona Blend 55) at optimum asphalt content of 6.25% and gondorukem as an additive at 0.0% and 2.5% content. The treatment given to the mixture is by soaking water for 0, 1, 3 and 7 days. The treatment given to the mixture is by soaking water for 0, 1, 3 and 7 days. The results showed that the Marshall stability value decreased with increasing water immersion time. Decrease in Marshall stability values that occur in specimens with immersion time of 1, 3 and 7 days for specimens without immersion are 21.34%, 25.56% and 28.25%, respectively.

scholarly journals Improving The Performance of Asphalt Concrete Mixtures With Polymer Asphalt in Submerged Floods

2021 ◽  
Vol 2 (02) ◽  
pp. 62-69
Author(s):  
Yanuar Setiawan ◽  
Erlina Yanuarini ◽  
Nunung Martina ◽  
Muhammad Fathur Rouf Hasan ◽  
Rinawati Rinawati
Keyword(s):  
Asphalt Concrete ◽  
Asphalt Pavement ◽  
Water Immersion ◽  
The Road ◽  
Concrete Mixtures ◽  
Asphalt Content ◽  
The Difference ◽  
The Stability

The road conditions which is always submerged can reduce the performance of the asphalt pavement. This research was conducted to obtain the characteristics of polymer asphalt concrete against flooding. Marshall testing was carried out on conventional and polymer asphalt concrete with optimum asphalt content treated with water immersion in variations of 0 days, 0.5 days, 1 day, 2 days, and 4 days. The results show polymer asphalt can improve the durability of asphalt concrete which is submerged in floodwater. This is indicated by the difference in the stability value of 113% in the variation of immersion for 4 days.

Variation of Asphalt Requirement and Strength Properties among Hot Mix (HMA) and Warm Mix (WMA) Asphalt Concrete

2020 ◽  
Vol 27 (2) ◽  
pp. 24-33
Author(s):  
Zainalabidine Nihad ◽  
Saad Issa Sarsam
Keyword(s):  
Asphalt Concrete ◽  
Research Work ◽  
Strength Properties ◽  
Warm Mix Asphalt ◽  
Indirect Tensile ◽  
Asphalt Content ◽  
Pavement Construction ◽  
The Stability ◽  
Marshall Stability ◽  
Emulsified Asphalt

Due to the restrictions for protecting the environment, and the requirements to reduce fuel consumption, research work was started globally for verifying the possibility of implementation of warm mix asphalt (WMA) in pavement construction. Warm mix asphalt enables the production and compaction of asphalt concrete mixtures at temperatures (20-30 °C) lower than that of traditional hot mix asphalt (HMA). In this investigation, two WMA mixtures have been prepared in the laboratory using medium curing cutback (MC-30) and Cationic emulsion. HMA mixture was also prepared for comparison. Marshall specimens of (101.6 mm) in diameter and (63.5 mm) in height were constructed form the mixtures and subjected to indirect tensile strength (ITS) test, Marshall Stability, flow and volumetric properties determination. Test results were analyzed and compared. It was concluded that the stability of WMA is higher than HMA by 17 % and 47.87 % for (cutback and emulsified asphalt) WMA respectively, while the WMA exhibit lower flow than HMA by 34.67 % and 1.33 % when using (cutback and emulsion) WMA respectively. The optimum asphalt content was (20.69 and 32.35) % higher for (cutback and emulsion) WMA than that of HMA. The (ITS) at 25 ⁰C decreases by (28.58 and 4.51) % when the asphalt content increased and decreased by 0.5 % from optimum asphalt content (OAC) for WMA- emulsion asphalt.

scholarly journals Experimental Research on Fuel Oil Corrosion Resistance of Asphalt Mixtures

2019 ◽  
Vol 275 ◽  
pp. 04005
Author(s):  
LI Qiang ◽  
Zhang Zhuoyu ◽  
LI Ke
Keyword(s):  
Corrosion Resistance ◽  
Immersion Time ◽  
Mechanical Performance ◽  
Strength Test ◽  
Asphalt Mixtures ◽  
Fuel Oil ◽  
Stability Test ◽  
Additive Content ◽  
The Stability ◽  
Marshall Stability

Asphalt mixtures were immersed in the fuel oil to study the oil corrosion resistance. The mechanical performance of asphalt mixtures in the oil was evaluated by the observation, mass loss measurement, Marshall stability test and splitting strength test. Effects of immersion time, binder types, and anti-oil corrosion additive content were analyzed. It is found that there is the evident stripping after immersing the mixture in the oil. The stability test and strength significantly decrease. Using the anti-oil corrosion additive can effectively improve the mechanical performance of asphalt mixtures in the oil. It still can satisfy the criteria after immersing for 7 days. Finally, the optimum anti-oil corrosion additive content of 0.4% is recommended.

scholarly journals Selecting warm mix asphalt additives by the properties of warm mix asphalt mixtures - China experience

2015 ◽  
Vol 10 (1) ◽  
pp. 79-88 ◽  
Author(s):  
Xinsheng Li ◽  
Zhaoxing Xie ◽  
Wenzhong Fan ◽  
Lili Wang ◽  
Junan Shen
Keyword(s):  
Tensile Strength ◽  
Dynamic Stability ◽  
Asphalt Concrete ◽  
Warm Mix Asphalt ◽  
Asphalt Mixtures ◽  
Air Voids ◽  
Mastic Asphalt ◽  
Stone Mastic Asphalt ◽  
Crushed Aggregate ◽  
Marshall Stability

The objective of this research was to select the most effective warm asphalt additives for mix practice based on a series of laboratory testing programs such as density, Marshall stability, freeze-thaw splitting strength, dynamic stability, and bending beam strain. The experimental design of warm mix asphalt included the use of three commonlyused additives, two typical aggregate gradations, one crushed aggregate, and one modified asphalt. Results showed that: (1) the bulk specific gravity and air voids of all the mix specimens were similar to those of controls; (2) the Marshall stability and flow values of the warm stone mastic asphalt were 6.8%–26.6% and 3.5%–10.3%% higher than those of controls, respectively, and those of the warm asphalt concrete were 6.1%–15.6% and 6.5%–9.7% higher than those of controls, respectively; (3) the indirect tensile strength of two types of mixtures was 1.7%–14.4% lower than that of controls, and the average tensile strength ratio of the warm stone mastic asphalt and asphalt concrete was 4.3% and 1.3% higher than that of controls, respectively; (4) the dynamic stability of warm mix specimens was 10.8%–16.6% lower than that of the controls; (5) the average bending failure strain of warm stone mastic asphalt was 7.6% higher than that of the controls, and that of warm asphalt concrete was 12.8% lower than that of the controls; (6) Overall, warm asphalt mixtures with Sasobit and Rediset had relatively best performances required in Southeast China, where rutting and stripping are the main failures of asphalt pavements.

scholarly journals Performance Evaluation of Modified Bitumen Using EPS Beads for Green and Sustainable Development of Polymer-Based Asphalt Mixtures

Proceedings ◽  
2020 ◽  
Vol 69 (1) ◽  
pp. 36
Author(s):  
Muhammad Kashif Anwar ◽  
Syyed Adnan Raheel Shah ◽  
Muhammad Ahmed Qurashi ◽  
Muhammad Hasnain Saeed ◽  
Aqsa Nisar ◽  
...  
Keyword(s):  
Asphalt Concrete ◽  
Expanded Polystyrene ◽  
Infrastructure Development ◽  
Modified Bitumen ◽  
Modified Asphalt ◽  
Different Types ◽  
Economic Infrastructure ◽  
The Stability ◽  
Marshall Stability ◽  
Polymer Modified Bitumen

The increasing costs of virgin content, decreasing resources, and growing plastic waste have shifted the research momentum towards green and sustainable road pavements. Hence, in recent years, various researchers have worked on the utilization of different types of plastic wastes in asphalt concrete by replacing it with binder content. Under this premise, this study examines the effect of expanded polystyrene beads (EPS) as a replacement to the binder at seven different dosages ranging from 5% to 50%. The bitumen of 60/70 grade was utilized in this study. The fresh properties of polymer-modified bitumen were checked and compared to that of conventional specimens. The mechanical properties of all specimens were investigated in terms of Marshall Stability properties. The results indicated that the adding of PEB improves the stability of modified asphalt concrete. Furthermore, the addition of EPS by substituting bitumen content could be a promising way to reduce the environmental impact of bitumen, and will also help in economic infrastructure development.

scholarly journals Moisture Susceptibility of Asphalt Concrete Pavement Modified by Nanoclay Additive

2019 ◽  
Vol 5 (12) ◽  
pp. 2535-2553 ◽  
Author(s):  
Saif Al-din Majid Ismael ◽  
Mohammed Qadir Ismael
Keyword(s):  
Asphalt Concrete ◽  
Hot Mix Asphalt ◽  
Asphalt Mixture ◽  
Moisture Damage ◽  
Strength Ratio ◽  
Moisture Susceptibility ◽  
Asphalt Cement ◽  
Asphalt Content ◽  
Marshall Stability ◽  
Asphalt Concrete Pavement

Durability of hot mix asphalt (HMA) against moisture damage is mostly related to asphalt-aggregate adhesion. The objective of this work is to find the effect of nanoclay with montmorillonite (MMT) on Marshall properties and moisture susceptibility of asphalt mixture. Two types of asphalt cement, AC(40-50) and AC(60-70) were modified with 2%, 4% and 6% of Iraqi nanoclay with montmorillonite. The Marshall properties, Tensile strength ratio(TSR) and Index of retained strength(ISR) were determined in this work. The total number of specimens was 216 and the optimum asphalt content was 4.91% and 5% for asphalt cement (40-50) and (60-70) respectively. The results showed that the modification of asphalt cement with MMT led to increase Marshall stability and the addition of 6% of MMT recorded the highest increase, where it increased by 26.35% and 22.26% foe asphalt cement(40-5) and(60-70) respectively. Also, the addition of MMT led to increase moisture resistance of asphalt mixture according to the increase in TSR and IRS. The addition of 4% and 6% of MMT recorded the highest increase in TSR and IRS for asphalt cement (40-50) and (60-70) respectively, where they increased by 11.8% and 17.5% respectively for asphalt cement (40-50) and by 10% and 18% respectively for asphalt cement (60-70).

scholarly journals UJI DURABILITAS CAMPURAN AC-WC MENGGUNAKAN KOMBINASI LIMBAH PLASTIK DAN ABU SERABUT KELAPA SEBAGAI FILLER

2018 ◽  
Vol 1 (3) ◽  
pp. 679-688
Author(s):  
Ondriani Ondriani ◽  
Sofyan M. Saleh ◽  
Muhammad Isya
Keyword(s):  
Fly Ash ◽  
Polyethylene Terephthalate ◽  
Asphalt Concrete ◽  
Asphalt Mixture ◽  
Plastic Waste ◽  
Coconut Fiber ◽  
Additional Material ◽  
Study Results ◽  
Asphalt Content ◽  
Strength And Durability

Abstract: The cause of damage and strength reductionon highway flexible pavement isthe low strength and durability on the wear layer. To cope withthis problem, it is necessary to add some particular additivethat can increase the asphalt concrete performance. One of the additional material that can be used are plastic. Stone ash, cement and fly ash has been commonly used as a filler in asphalt mixture. But these kind of filler was hard to get and the price were relatively expensive. The coconut fiber ash wich has a specific grafity greater than asphalt is expected to be one alternative. This research aims to determine the influence of plastic wastecombination substitution into the asphalt pen. 60/70 and the use of coconut fiber ash as filler on AC-WC mixture performance. The plastic used in this research is polyethylene terephthalate, polypropylene and polystyrene. The early stages of this research is to find the optimum asphalt content (OAC). After OAC obtained, then the specimens were mixed without and with the combination substitution of plastic waste as much as 2.7%; 4.7%; 6.7% against the weight of  asphalt on OAC + 0.5% with and without the coconut fiber ash as a filler. The study results showed the use of plastic waste combination and the coconut fiber ash can not improve the durability value. The highest value of durability obtained at 4.7% combination substitution of plastic waste, it was 77.53%, While the lowest was in substitution of 6.7% plastic waste combination with 38.27% coconut fiber  ash as a filler. The duration value of AC-WC mixture with plastic waste combination substitution and the use of coconut fiber ash filler did not meet the requirement that is 90%.Abstrak: Penyebab kerusakan dan penurunan kekuatan perkerasan lentur jalan raya adalah rendahnya kekuatan dan keawetan di dalam lapisan aus. Untuk menanggulangi hal ini dibutuhkan suatu bahan tambah yang dapat meningkatkan lapis aspal beton. Salah satu bahan tambah yang dapat di gunakan adalah plastik. Abu batu, semen dan fly ash sudah biasa digunakan sebagai filler dalam campuran aspal. Tetapi, jenis filler tersebut susah didapatkan dan harganya relatif mahal. Abu serabut kelapa yang memiliki berat jenis lebih besar dari aspal, diharapkan dapat menjadi alternatifnya. Penelitian ini bertujuan untuk mengetahui nilai durabilitas campuran AC-WC menggunakan kombinasi limbah plastik dan abu serabut kelapa. Plastik yang digunakan pada penelitian ini adalah Polyethylene Terephthalate, Polypropylenedan Polystyrene. Tahap awal penelitian ini adalah mencari kadar aspal optimum (KAO). Setelah KAO didapat kemudian dilakukan pembuatan benda uji tanpa dan dengan substitusi kombinasi limbah plastik sebesar 2,7%; 4,7%; 6;7% terhadap berat aspal pada KAO + 0,5% tanpa dan dengan abu serabut kelapa sebagai filler. Hasil penelitian menunjukkan penggunaan kombinasi limbah plastik tidak dapat meningkatkan nilai durabilitas. Nilai durabilitas tertinggi didapat pada substitusi kombinasi limbah plastik 4,7% yaitu 77,53% sedangkan yang terendah terdapat pada subtitusi kombinasi limbah plastik 6,7% dengan filler abu serabut kelapa yaitu 38,27%. Nilai Durabilitas campuran AC-WC dengan substitusi kombinasi limbah plastik   dan penggunaan abu serabut kelapa sebagai filler tidak memenuhi syarat yaitu 90%.

scholarly journals Influence of Polypropylene Length on Stability and Flow of Fiber-reinforced Asphalt Mixtures

2016 ◽  
Vol 2 (10) ◽  
pp. 538-545 ◽  
Author(s):  
Ramin Bayat ◽  
Siamak Talatahari
Keyword(s):  
Asphalt Concrete ◽  
Asphalt Pavement ◽  
Flexible Pavements ◽  
Asphalt Mixture ◽  
Fatigue Cracking ◽  
Asphalt Mixtures ◽  
Concrete Mixture ◽  
Fiber Reinforced ◽  
Surface Distress ◽  
Marshall Stability

Engineers are constantly trying to improve the performance of the flexible pavements. The main surface distress types which cause maintenance and disruption are rutting and fatigue cracking. For solving these problems, many studies have been carried out until now, ranged from changing gradation to adding polymers and fibers to asphalt mixture. In this study, polypropylene additive was selected as fiber additive because of low costing and having good correlation with asphalt pavement. Three type of polypropylene additive in the length 6, 12 and 19 mm were selected and used at five different percentages in the asphalt concrete mixture. Asphalt specimens were analysed by Marshall Analysis and finally tested by Marshall Stability apparatus. Adding polypropylene increased Marshall Stability (38%), and decreased Flow (39%). These results show that polypropylene can be helpful for increasing pavement life.

scholarly journals Studi Karakteristik Campuran Aspal Beton Lapis Aus (AC-WC) Menggunakan Aspal Penetrasi 60/70 dengan Penambahan Lateks

2016 ◽  
Vol 22 (2) ◽  
pp. 77
Author(s):  
I Nyoman Arya Thanaya ◽  
I Gusti Raka Puranto ◽  
I Nyoman Sapta Nugraha
Keyword(s):  
Asphalt Concrete ◽  
Asphalt Binder ◽  
Rubber Content ◽  
Resistance To Deformation ◽  
Dynamic Creep ◽  
Asphalt Content ◽  
The Stability ◽  
Creep Loading

Asphalt on pavement in long term may undergo hardening, so it needs addition of additive that can make it remain flexible. This experiment tried to produce asphalt concrete wearing course (AC-WC) using asphalt penetration 60/70 with the addition of latex, with aim to know the characteristic of AC-WC mix at the optimum of asphalt content with addition of  latex in variation of 0%, 2%, 4%, 6%, 8%, and 10% of the total binder. Latex was initially mixed with the asphalt, then the aggregates were proportioned based on ideal grading. The samples were produced in hotmix process. The density of latex was found 0.977 with dry rubber content of 61.95%. The optimum of asphalt content that was 5.7%, where all Marshall characteristics were met. It was chosen the mix with 4% latex by total binder where all properties of asphalt binder were still met. It was obtained that the Stability value  was 1439.26 kg (≥ 800 kg), Flow 3.84 mm (2-4 mm), Marshall Quotient 379.66 kg / mm (≥ 250 kg / mm), VIM  4.437% (3-5%), VMA 15.280% (≥ 15%), VFB 70.961 (≥ 65%). The mixture that contains latex had better resistance to deformation under dynamic creep loading at 40 °C.

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