scholarly journals Evaluation and Comparison of Mechanical Properties of Polymer-Modified Asphalt Mixtures

Polymers ◽  
2021 ◽  
Vol 13 (14) ◽  
pp. 2282
Author(s):  
Hamad Abdullah Alsolieman ◽  
Ali Mohammed Babalghaith ◽  
Zubair Ahmed Memon ◽  
Abdulrahman Saleh Al-Suhaibani ◽  
Abdalrhman Milad
Keyword(s):  
Mechanical Properties ◽  
Asphalt Mixture ◽  
Mechanical Tests ◽  
Polymer Modification ◽  
Flow Number ◽  
Study Objective ◽  
Asphalt Cement ◽  
Modified Asphalt ◽  
Pavement Distresses ◽  
Polymer Modified Asphalt

Polymer modification is extensively used in the Kingdom of Saudi Arabia (KSA) because the available asphalt cement does not satisfy the high-temperature requirements. It was widely used in KSA for more than two decades, and there is little information regarding the differences in the performance of different polymers approved for binder modification. Pavement engineers require performance comparisons among various polymers to select the best polymer for modification rather than make their selection based on satisfying binder specifications. Furthermore, the mechanical properties can help select polymer type, producing mixes of better resistance to specific pavement distresses. The study objective was to compare the mechanical properties of the various polymer-modified asphalt (PMA) mixtures that are widely used in the Riyadh region. Control mix and five other mixes with different polymers (Lucolast 7010, Anglomak 2144, Pavflex140, SBS KTR 401, and EE-2) were prepared. PMA mixtures were evaluated through different mechanical tests, including dynamic modulus, flow number, Hamburg wheel tracking, and indirect tensile strength. The results show an improvement in mechanical properties for all PMA mixtures relative to the control mixture. Based on the overall comparison, the asphalt mixture with polymer Anglomk2144 was ranked the best performing mixture, followed by Paveflex140 and EE-2.

scholarly journals Influence of Buton Rock Asphalt on the Physical and Mechanical Properties of Asphalt Binder and Asphalt Mixture

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Yafei Li ◽  
Jing Chen ◽  
Jin Yan ◽  
Meng Guo
Keyword(s):  
Mechanical Properties ◽  
Asphalt Pavement ◽  
Asphalt Binder ◽  
Asphalt Mixture ◽  
Physical And Mechanical Properties ◽  
Mechanical Tests ◽  
Service Performance ◽  
Modified Asphalt ◽  
Wet Process ◽  
Modified Asphalt Binder

In order to study the effect of different rock asphalt contents on the physical and mechanical properties of an asphalt binder and asphalt mixture, the physical and mechanical tests and analysis were conducted. An on-site case was investigated to verify the effectiveness of rock asphalt-modified pavement. The results show that the activation treatment can effectively enhance the molecular polarity of Buton rock asphalt. The “wet process” was used to prepare the Buton rock asphalt-modified asphalt binder, and the high-temperature performance and aging resistance were significantly improved. The modified asphalt prepared by mixing 30% rock asphalt shows the optimum balance between service performance and segregation. The on-site full-scale application of the Buton rock asphalt-modified asphalt pavement showed the good workability and service performance. This research demonstrated the ability of rock asphalt improving asphalt pavement on multiscales. It is helpful for the broader application of rock asphalt in asphalt pavement.

Field Performance Evaluation of High Polymer-Modified Asphalt Concrete Overlays

2022 ◽  
pp. 036119812110657
Author(s):  
Jhony Habbouche ◽  
Ilker Boz ◽  
Brian K. Diefenderfer ◽  
Benjamin F. Bowers
Keyword(s):  
Survey Data ◽  
Asphalt Concrete ◽  
Asphalt Mixture ◽  
Field Performance ◽  
Pavement Management ◽  
High Polymer ◽  
Polymer Modification ◽  
Modified Asphalt ◽  
Concrete Overlays ◽  
Polymer Modified Asphalt

The objective of this paper was to assess the viability of using high polymer (HP) modified asphalt concrete (AC) mixtures in Virginia as a reflective crack mitigation technique or when deemed appropriate as a tool for increased crack resistance on higher volume facilities. This was achieved by compiling and evaluating routine distress survey data against pre-paving distress survey data for relevant in-service HP pavements constructed between 2015 and 2018 and comparing them with several control in-service conventional polymer-modified asphalt (PMA) pavements. This is the first effort in North America to provide a detailed field performance of HP AC mixtures. In general, none of the evaluated mixtures (HP or PMA) was able to prevent reflective cracking completely. The HP sections showed the most promising performance 5 years after construction regardless of traffic level and the pre-existing pavement conditions. The pavement management system data for the reviewed sections indicated a potential controlling effect of the joint condition of the underlying jointed concrete pavement layer regardless of the asphalt mixture type employed (PMA or HP). Moreover, performance evaluations using the network-level pavement management data were conducted to estimate the life expectancy of HP AC overlays. Two different approaches and three levels of analysis were undertaken. Overall, PMA and HP AC overlays had an average predicted service life of 6.2 and 8.3 years, respectively, indicating a 34% extension of performance life of the AC overlays with high polymer modification.

The Use of Natural Zeolite as an Additive in Warm Mix Asphalt with Polymer Modified Asphalt Binder

2015 ◽  
Vol 15 ◽  
pp. 35-46 ◽  
Author(s):  
Ani Tjitra Handayani ◽  
Bagus Hario Setiaji ◽  
Sri Prabandiyani
Keyword(s):  
Asphalt Concrete ◽  
Natural Zeolite ◽  
Hot Mix Asphalt ◽  
Heating Temperature ◽  
Asphalt Mixture ◽  
Warm Mix Asphalt ◽  
Polymer Modification ◽  
Modified Asphalt ◽  
Marshall Test ◽  
Polymer Modified Asphalt

Asphalt Concrete mixture of polymer modification are used to reduce the damage early and increasing the durability of pavement to various damage such as permanent deformation, cracking due to temperature changes, fatigue During this process the polymer asphalt mixing using Hot Mix Asphalt / HMA. In accordance with the name and nature of hot mix asphalt, require high enough heating temperature on the Asphalt Mixing Plant (AMP), and also requires a high temperature compaction. As a result, it takes quite a lot of fuel so produced a large exhaust emissions. Emissions generated during the mixing process and compaction of HMA is a challenge for the environment. Some countries have developed a method of asphalt mixture to overcome this by using Warm Mix Asphalt technology. Warm Mix Asphalt is the technology of mixing and compaction temperatures of asphalt mixtures using mixing and compaction temperatures lower than Hot Mix Asphalt. Decreasing the mixing and compaction temperatures by adding additives to the asphalt mixture. Types of additives that have been widely used and developed for Warm Mix Asphalt them is the use of synthetic zeolites with various trademarks such as Aspha-min (R), Sasobit(R) dan Advera(R). In this paper the synthetic zeolite will be replaced by natural zeolite as an additive to be mixed with a mixture of Polymer Modified Asphalt Concrete. This study uses laboratory testing, using aggregate materials from Subang, West Java, Asphalt Elastomer Polymers, natural zeolite mineral mordenite sourced from Bayat, Central Java, Indonesia. Tests using a mixture Marshall Test. Marshall test results stated that the levels of natural zeolite 1% can reduce the temperature of mixing and compaction temperatures on Polymer Modified Concrete Asphalt mix 30°C, lower than the temperature of the mixture of Polymer Modified Asphalt Concrete without zeolite. Keywords: additive, Natural Zeolites, Warm Mixed Asphalt, Polymer Modified Asphalt Concrete

scholarly journals High Temperature Performance of SBS and LM-S Modified Asphalt Mixtures by Triaxial Test

2021 ◽  
Vol 293 ◽  
pp. 02029
Author(s):  
Tang-Baoli ◽  
Ren-yongqiang ◽  
Chen-Xiangmei ◽  
Hou-Huifang ◽  
Liang-Jianping
Keyword(s):  
High Temperature ◽  
Creep Rate ◽  
Permanent Deformation ◽  
Asphalt Mixture ◽  
Deviatoric Stress ◽  
Repeated Loading ◽  
Flow Number ◽  
Modified Asphalt ◽  
Temperature Performance ◽  
Sbs Modified Asphalt

In order to study the high temperature performance of LM-S modified asphalt mixture and SBS modified asphalt mixture, repeated loading creep test was used to study the influence of temperature and deviatoric stress on the axial permanent deformation of the two kinds of asphalt mixture. At the same time, Permanent deformation, ε@5000, flow number FN and creep rate were select to evaluation of high temperature performance from different directions. The results show that the ε@5000 and creep rate are failed in the condition of high temperature and large deviatoric stress, so it hast widely practicable. The flow number FN is also limited by the conditions, which leads to the distortion of the flow number at lower temperature and smaller deviatoric stress so it is not easy to direct used as the evaluation index. Axial permanent deformation can reflect the permanent deformation in different cycles which is an excellent index to evaluate the high temperature performance of the two kinds of asphalt mixture, it is recommended to use axial permanent deformation to compare the LM-S modified asphalt mixture and SBS modified asphalt mixture The experimental results show that the axial permanent deformation of the LM-S modified asphalt mixture is always less than that of SBS modified asphalt mixture,it indicating that the high temperature rutting resistance of the LM-S modified asphalt mixture is better than that of SBS modified asphalt mixture.

scholarly journals The Potential use of Crumb Rubber in Hot Asphalt Mixes in Egypt using Dry Process

2019 ◽  
Vol 9 (1) ◽  
pp. 4356-4360
Keyword(s):  
Mechanical Properties ◽  
Permanent Deformation ◽  
Asphalt Mixture ◽  
Road Construction ◽  
Crumb Rubber ◽  
Flow Number ◽  
Storage Container ◽  
Dry Process ◽  
Wet Process ◽  
Process Method

Since 1960 Using crumb rubber modifier (CRM) in hot asphalt mixtures has become a frequent practice in road construction. Using the CRM by the dry process method is not commonly used, although it has great advantages such as it is less fuel consuming and it does not require storage container like the wet process method. This research evaluates the mechanical properties of dense graded asphalt rubber mixtures manufactured using the dry process. The results obtained from this mixture compared with similar asphalt mixture without CRM. The mechanical properties of all mixtures evaluated using a set of tests such Marshall Stability and flow test, moisture susceptibility test, indirect tensile strength test, dynamic modulus and flow number test. The research results showed that using CRM with 0.75% of aggregate’s weight increased the mixture’s stability, flow and enhanced its cracking and permanent deformation resistance.

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