scholarly journals Warm mix asphalt with zeolite additions

2014 ◽  
Vol 13 (4) ◽  
pp. 161-168
Author(s):  
Jerzy Kukiełka ◽  
Agnieszka Woszuk ◽  
Wojciech Franus
Keyword(s):  
Asphalt Concrete ◽  
Natural Zeolite ◽  
Warm Mix Asphalt ◽  
Test Results ◽  
Stiffness Modulus ◽  
Asphalt Mixes ◽  
Compaction Temperature ◽  
Optimal Amount ◽  
Preliminary Results

In this study, preliminary results of zeolite application to reduce the compaction temperature of mix asphalt are presented and discussed. The reference mix was an asphalt concrete AC 16 W containing 35/50 penetration grade bitumen and designed for binder course. Two types of the zeolites were used for tests: natural zeolite klinoptilolit and synthetic NaP1 one. The optimal amount of zeolite addition was determined on the basis of the compactibility test results in the Marshall compactor as well as in the gyratory compactor. The results of stiffness modulus and waterproofness tests confirm the possibility to reduce the compaction temperature of asphalt mixes with zeolite additions to 1300C level.

scholarly journals Use of mix asphalts with reduced compaction temperature and addition of zeolites in real conditions

2016 ◽  
Vol 15 (1) ◽  
pp. 123-132
Author(s):  
Wojciech Franus ◽  
Agnieszka Woszuk
Keyword(s):  
Natural Zeolite ◽  
Laboratory Tests ◽  
Permanent Deformation ◽  
Warm Mix Asphalt ◽  
Binder Content ◽  
Temperature Decrease ◽  
Stiffness Modulus ◽  
Compaction Temperature

The aim of this study is to evaluate the possibility of decreasing the mix asphalt compaction temperature through zeolites use, based on pavement analysis of the trial section (of road). The article contains results of laboratory tests and analysis of samples from trial section (of road)for AC 16 W 35/50 with addition of a natural zeolite – clinoptilolite. The amount of dosed zeolite material was 1% with regard to the mineral mix mass and 0,4% – with additional clinoptilolite infusion withm water. Basing on laboratory tests, it was proved that it is possible to decrease the compaction temperature of warm mix asphalt (WMA) with zeolite addition by 30ºC (from 145ºC to 115ºC). Compaction temperature decrease of 20– 40ºC was obtained during incorporation of the mix in the trial section (of road). The MMA analysis of this section (of road)included: soluble binder content, compactibility, resistance to permanent deformation and stiffness modulus using a IT-CY method.

scholarly journals Studying the Effect of Syrian Natural Zeolite On Properties of Asphalt Binder

2021 ◽  
Vol 28 (1) ◽  
pp. 59-68
Author(s):  
Mahmoud Ali Abdullh ◽  
Fayez Suleiman ◽  
Bassem Ali ◽  
Adel Dib
Keyword(s):  
Asphalt Concrete ◽  
Natural Zeolite ◽  
Asphalt Binder ◽  
Economic Benefits ◽  
Synthetic Zeolite ◽  
Test Results ◽  
X Ray Diffraction ◽  
X Ray ◽  
Aged Asphalt ◽  
The Cost

In the last years, many researchers studied production of warm asphalt concrete by usingorganic, chemical and water-bearing additive )synthetic zeolite). The purpose of this research is to study theeffect of Syrian natural zeolite on the physical and rheological properties of asphalt binder and verify ofusing it to produce warm asphalt concrete (as a binder modifier or as additive to asphalt concrete), in additionto economic benefits by saving on the cost of synthetic zeolite. In this study, natural zeolite characterizationhas been investigated via X-Ray Fluorescence (XRF), X-Ray Diffraction (XRD) and Thermal Gravimetricanalysis (TGA). Natural zeolite was added to asphalt binder with different percentages (3, 4, 5 and 6%) byweight and to determine the effect of natural zeolite on properties of asphalt binder, penetration at )25(°∁,softening point, ductility, viscosity at (110, 120, 135)°∁ and RTOFT tests were carried out on both modifiedand unmodified aged asphalt binder with natural zeolite. According to the test results, it has been seen thatthe addition of natural zeolite improves properties of the asphalt binder and an increase in its resistance tofatigue, and do not make a substantial difference on the workability of the asphalt binder. So the effect ofthe mixture of natural zeolite additives on the workability could not be predicted on asphalt binder, thereforethe direct effect of additives should be studied on the asphalt mixtures.

scholarly journals The influence of reclaimed asphalt pavement in warm mix asphalt on asphalt concrete binder course with Retona Blend 55

2019 ◽  
Vol 278 ◽  
pp. 01012
Author(s):  
Raudhah ◽  
R. Jachrizal Sumabrata ◽  
Sigit Pranowo Hadiwardoyo
Keyword(s):  
Significant Influence ◽  
Asphalt Concrete ◽  
Asphalt Pavement ◽  
Warm Mix Asphalt ◽  
Public Works ◽  
Reclaimed Asphalt Pavement ◽  
Test Results ◽  
Reclaimed Asphalt ◽  
Marshall Test ◽  
Asphalt Content

Reclaimed asphalt pavement (RAP) comprises removed pavement materials containing high-quality aggregates and asphalt which can be recycled as materials for new pavement construction. It is removed continually for reconstruction, resurfacing, and maintenance purposes, and if not recycled will become waste. This paper determines the influence of using different RAP percentages and asphalt content in warm mix asphalt on the Marshall test results for asphalt concrete binder course (AC-BC) using Retona Blend 55. The percentages of RAP are determined by analyzing the gradation of the existing aggregates in RAP and adding virgin aggregates so that it meets the standard gradation for AC-BC specified by the Ministry of Public Works and Housing. The RAP percentages in the asphalt mixes in this study are 35%, 45%, and 51.55% of total aggregates, while the asphalt contents are 5%, 6%, and 7% of the total mix. To determine the influence of RAP percentage and asphalt content, and to discover if there is any influence from the interaction between these two factors, the analysis is performed using a factorial design. The results of this study show that variation in RAP percentages in the mix has no significant influence on stability, flow, and Marshall quotient, but there is significant influence on void in mineral aggregates (VMA), void in mix (VIM), and void filled with asphalt (VFA). Correlations of 97.5%, 80%, and 95.1%, respectively show that increase in RAP percentage increases VMA and VIM and decreases VFA. The interaction between RAP percentage and asphalt content has no significant influence on Marshall test results.

Comparison of mechanistic laboratory characterization and 10-year rutting performance of SPS-9A test site in Saskatchewan

2010 ◽  
Vol 37 (3) ◽  
pp. 489-495
Author(s):  
Curtis Berthelot ◽  
Diana Podborochynski ◽  
Ania Anthony ◽  
Brent Marjerison
Keyword(s):  
Asphalt Concrete ◽  
Asphalt Binder ◽  
Test Site ◽  
Performance Comparison ◽  
Test Results ◽  
Frequency Sweep ◽  
Asphalt Mixes ◽  
Asphalt Cement ◽  
Laboratory Characterization ◽  
Frequency Sweep Test

This paper provides a performance comparison of mechanistic laboratory and field rutting performance of four asphalt concrete mixes constructed in 1996 at a Strategic Highway Research Program SPS-9A test site located in Saskatchewan. The asphalt mixes included two Saskatchewan Type 70 Marshall mixes and two coarse graded Superpave™ mixes and employed 150–200A and 200–300A penetration grade asphalt cement binders. The triaxial frequency sweep characterization determined that the Superpave™ mix yielded improved mechanistic structural constitutive properties when compared to the Saskatchewan Type 70 mix. In addition, improved mechanistic structural properties were observed with the mixes employing 150–200A (PG 58-28) asphalt binder relative to the 200–300A (PG 52-34) asphalt binder, particularly the Saskatchewan Type 70 mix. The 10-year rutting performance of the Radisson SPS-9A test site was evaluated and the field rutting results concurred with the triaxial frequency sweep test results. The triaxial frequency sweep characterization employed in this study appears to adequately rank asphalt mixes with respect to field rutting performance.

scholarly journals Influence of F-T Synthetic Wax on Asphalt Concrete Permanent Deformation

2013 ◽  
Vol 59 (3) ◽  
pp. 295-312
Author(s):  
M. Iwański ◽  
G. Mazurek
Keyword(s):  
Fatigue Life ◽  
Fatigue Test ◽  
Asphalt Concrete ◽  
Permanent Deformation ◽  
Positive Influence ◽  
Test Results ◽  
Fischer Tropsch ◽  
Stiffness Modulus ◽  
Tensile Fatigue ◽  
Indirect Tensile

Abstract The paper presents the results of the study of the effect of a Fischer-Tropsch (F-T) synthetic wax on the resistance to permanent deformation of the AC 11S asphalt concrete. The synthetic wax was dosed at 1.5%, 2.5% and 3.5% by weight of bitumen 35/50. The compaction temperatures were 115°C, 130°C and 145°C. The criteria adopted for measuring the resistance to permanent deformation included the following parameters: stiffness modulus at 2, 10 and 20°C, permanent deformation (RTS), fatigue life determined using the indirect tensile fatigue test (ITFT) and resistance to rutting (WTSAIR, PRDAIR). The test results confirmed the positive influence of F-T synthetic wax on enhancing the permanent deformation resistance of asphalt concrete placed at lower compaction temperatures compared to that of standard asphalt concrete compacted at 140°C.

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 Rutting and moisture-induced damage potential of foamed warm mix asphalt (WMA) containing RAP

2021 ◽  
Vol 6 (3) ◽  
Author(s):  
Mohammad Ashiqur Rahman ◽  
Rouzbeh Ghabchi ◽  
Musharraf Zaman ◽  
Syed Ashik Ali
Keyword(s):  
Asphalt Pavement ◽  
Warm Mix Asphalt ◽  
Environmental Benefits ◽  
Reclaimed Asphalt Pavement ◽  
Chemical Additives ◽  
Flow Number ◽  
Damage Potential ◽  
Asphalt Mixes ◽  
Reclaimed Asphalt ◽  
Wheel Tracking

AbstractDespite significant economic and environmental benefits, performance of warm mix asphalt (WMA) containing reclaimed asphalt pavement (RAP) remains a matter of concern. Among the current WMA technologies, the plant foaming technique (called “foamed WMA” in this study) has gained the most attention, since it eliminates the need for chemical additives. In the present study, the laboratory performance, namely rutting and moisture-induced damage potential of foamed WMA containing RAP were evaluated and compared with those of similar hot mix asphalt (HMA) containing identical amount of RAP. Dynamic modulus, Hamburg wheel tracking (HWT) and flow number tests were performed to assess the rutting resistance of the mixes. Also, stripping inflection point from HWT tests and tensile strength ratio after AASHTO T 283 and moisture induced sensitivity test (MIST) conditioning were used to evaluate the moisture-induced damage of asphalt mixes. It was found that MIST conditioning effectively simulates the moisture-induced damage and can capture the propensity of asphalt mixes to moisture damage more distinctly compared to AASHTO T 283 method due to application of cyclic loadings. The foamed WMA was found to exhibit higher rutting and moisture-induced damage potential due to lower mixing and compaction temperatures compared to HMA. However, the increase in RAP content was found to reduce rutting and moisture-induced damage potential for WMA. Therefore, the lower stiffness of foamed WMA may be compensated with the addition of stiffer binder from RAP.

scholarly journals Characteristics of Warm Mix Asphalt Incorporating Coarse Steel Slag Aggregates

2021 ◽  
Vol 11 (8) ◽  
pp. 3708
Author(s):  
Adham Mohammed Alnadish ◽  
Mohamad Yusri Aman ◽  
Herda Yati Binti Katman ◽  
Mohd Rasdan Ibrahim
Keyword(s):  
Environmental Sustainability ◽  
Prediction Models ◽  
Hot Mix Asphalt ◽  
Steel Slag ◽  
Warm Mix Asphalt ◽  
Asphalt Mixes ◽  
Toxic Emissions ◽  
Comparable Performance ◽  
Different Temperatures ◽  
Production Temperature

The major goal of sustainable practices is to preserve raw resources through the utilization of waste materials as an alternative to natural resources. Decreasing the temperature required to produce asphalt mixes contributes to environmental sustainability by reducing energy consumption and toxic emissions. In this study, warm mix asphalt incorporating coarse steel slag aggregates was investigated. Warm mix asphalt was produced at different temperatures lower than the control asphalt mixes (hot mix asphalt) by 10, 20, and 30 °C. The performances of the control and warm mix asphalt were assessed through laboratory tests examining stiffness modulus, dynamic creep, and moisture sensitivity. Furthermore, a response surface methodology (RSM) was conducted by means of DESIGN EXPERT 11 to develop prediction models for the performance of warm mix asphalt. The findings of this study illustrate that producing warm mix asphalt at a temperature 10 °C lower than that of hot mix asphalt exhibited the best results, compared to the other mixes. Additionally, the warm mix asphalt produced at 30 °C lower than the hot mix asphalt exhibited comparable performance to the hot mix asphalt. However, as the production temperature increases, the performance of the warm mix asphalt improves.

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