void distribution in zeolite warm mix asphalt mixture

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Void Distribution in Zeolite Warm Mix Asphalt Mixture ...

Warm mix asphalt mixtures have the advantages of energy saving, emission reduction and good road performance. Zeolite asphalt mixtures, as a warm mixing technology, have been applied in the world. To understand the warm mix mechanism of zeolite warm mix asphalt mixture, the mesoscale structure of ze

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Void Distribution in Zeolite Warm Mix Asphalt Mixture ...

Jun 12, 2019  The results show that the void distribution of the warm mix asphalt mixture is close to that of the hot mix asphalt mixture when the temperature is higher than 120 °C, but when the temperature is lower than 120 °C, larger interconnected voids will appear in the warm mix asphalt mixture, resulting in a higher maximum void volume.

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Void Distribution in Zeolite Warm Mix Asphalt Mixture ...

Warm mix asphalt mixtures have the advantages of energy saving, emission reduction and good road performance. Zeolite asphalt mixtures, as a warm mixing technology, have been applied in the world. To understand the warm mix mechanism of zeolite warm mix asphalt mixture, the mesoscale structure of zeolite asphalt is studied. Micro computed tomography (CT) is utilized to obtain the internal ...

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Void Distribution in Zeolite Warm Mix Asphalt Mixture ...

materials Article Void Distribution in Zeolite Warm Mix Asphalt Mixture Based on X-ray Computed Tomography Junda Ren 1, Chao Xing 2,*, Yiqiu Tan 3, Nan Liu 1, Jingyi Liu 1 and Liying Yang 4 1 Liaoning Transportation Research Institute Co. Ltd., Key Laboratory of Transport Industry of Expressway Maintenance Technology, Shenyang 110000, China; [email protected] (J.R.); [email protected] (N.L.);

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Void Distribution in Zeolite Warm Mix Asphalt Mixture ...

Jun 01, 2019  Void Distribution in Zeolite Warm Mix Asphalt Mixture Based on X-ray Computed Tomography

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Void Distribution in Zeolite Warm Mix Asphalt Mixture ...

Jun 12, 2019  Warm mix asphalt mixtures have the advantages of energy saving, emission reduction and good road performance. Zeolite asphalt mixtures, as a warm mixing technology, have been applied in

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(PDF) Properties of the Warm Mix Asphalt involving ...

Distribution of zeolite particle sizes. ... Air void content in each mix asphalt was within the. ... In recent years, warm mix asphalt (WMA) has been widely studied for its benefits of requiring ...

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Zeolite in Warm Mix Asphalt KMI Zeolite

Apr 12, 2019  Remediating Soil Solid Waste Compost With Natural Clinoptilolite Zeolite May 7, 2019 - 4:45 pm; Heavy metal removal from motorway stormwater using zeolite April 12, 2019 - 1:06 pm; Benefits of Natural Zeolite in Anaerobic Digestion February 19, 2019 - 6:08 pm

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OPTIMIZATION OF ADDITION OF NATURAL ZEOLITE IN

Warm mix asphalt (WMA) is produced in the temperature range 100 - 140 °C. Hot mix asphalt (HMA) is produced at a temperature of about 140 - 190 °C. Industrial temperature of the asphalt mixture depends on the asphalt. This article describes the basic technology of WMA that used, and which have a

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Synthesis of zeolite A using sewage sludge ash for ...

Jan 20, 2018  Conventional landfill disposal of Sewage Sludge Ash (SSA) generates increasing environmental and economic concerns. This study aims to develop an innovative measure to solve this waste disposal problem by means of synthesizing zeolite A from the SSA and using it as a Warm Mix Asphalt (WMA) additive, which can decrease the construction temperature of asphalt pavement, thus reducing the ...

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Water Foaming and Zeolites and Their E ects on the ...

Properties of Warm Mix Asphalt Concrete ... air void content, indirect tensile strength ... was chosen in this way, so that the total quantity of water delivered to the asphalt mixture by means of zeolite was in both cases comparable. Table2presents adequate calculations.

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EXPERIMENTAL ANALYSIS OF THE POTENTIALITIES AND

Keywords: Warm mix asphalt, synthetic zeolite, air void content. ... use of this kind of material in the asphalt mixture field, a synthetic zeolite named Aspha-Min® has been developed. In mixing phase, the synthetic zeolite and binder are contemporarily added to pre-

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WARM MIX ASPHALT WITH NATURAL ZEOLITE FOR ROAD

The paper deals with a method to reduce temperature of asphalt mix using the ingredients of natural zeolite. In this article we discuss a proposal of the warm mix asphalt mixtures based on natural zeolite and determine the density, maximum density and sensitivity of asphalt test specimens on water. The results are compared with the reference ...

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Compacting Properties of Zeolite Based Warm Asphalt Mixture

Warm asphalt mixture develops rapidly throughout the world in recent years. Zeolite based warm mix is one of the warm mixtures. In this paper, seven kinds of zeolites including six natural zeolites and one synthetic zeolite are selected. As warm mix additives, their physical properties such as density, water content and pore arrangements are tested respectively.

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Laboratory Evaluation of Warm Mix Asphalt Mixture

Sasobit and zeolite were used as warm mix asphalt additives, which can make the mixed and ... Air void ( % ) 75 blows per side 50 blows per side ... And compaction of the asphalt mixture was improved by the warm mix asphalt additives. The air void of the HMA, A, S, and P1 mixtures for 75 blows per side ...

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Chao XING Harbin Institute of Technology, Harbin HIT ...

Asphalt mixture is a kind of granular material, which consists of aggregates with different particle sizes. ... Void Distribution in Zeolite Warm Mix Asphalt Mixture Based on X-ray Computed ...

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CharacterizationofWarmMixAgentandItsInfluenceon ...

3.1. Preparation of Warm Mix SBS-Modified Asphalt. Because of thedifference of compatibilitybetween asphalt and warm mix agents, in order to study the influence of warm mix agents on asphalt performance, Advera®, LTA zeolite, and13X zeolitewereadded intoSBS-modified as-phalt. e

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Model Development for the Prediction of the Resilient ...

workability, and extended paving window [5]. In this study, zeolite has used as an additive to achieve the desired asphalt warm mixture and added the same to the mixture at about 0.3% of its weight, which resulted in a reduction of the production temperature by about 30oC as compared to the control mixture [6]. The resilient modulus is the elastic

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A comprehensive review of warm mix asphalt mixtures ...

Mar 08, 2021  Depending on the production temperature, the asphalt mixtures are broadly differentiated as cold mix asphalt (CMA) (0-30˚C); half-warm mix asphalt (HWMA) (60-100˚C); warm mix asphalt (WMA) (100-140˚C); and HMA (>150˚C) [6]. Fig. 1 shows the arrangement of asphalt mixtures based on the production temperature, energy consumption, and gas ...

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Moisture characteristics of mixtures with warm mix asphalt ...

Jul 01, 2017  Warm mix asphalt (WMA) is a mixture that can be mixed and compacted under a relatively low temperature (100 °C–120 °C) through some WMA technologies when compared with hot mix asphalt (HMA) at 140 °C–160 °C, while the performance properties of WMA mixtures are not significantly influenced.

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Study on the Construction Performance of Zeolite Asphalt ...

Nov 04, 2020  The results show that zeolite contains special zeolite water and the pore content of zeolite is much higher than that of mineral powder. Zeolite loses water at 90°C∼120°C, which is the necessary condition for zeolite to be used in warm mix asphalt mixture.

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Evaluation of Using Waste Road Construction Materials with ...

Jul 15, 2017  Abstract. One of the hottest topics in asphalt pavement today is applying warm asphalt mix to reduce the mixing temperature with 20 to 40 °C, eliminate the greenhouse emissions and conserve the fuel required by less energy needed by using Zeolite and Sasobit additives with polymers to improve properties of

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Development of Warm-Mix-Asphalt Mixture Using Paper

characteristic, treatment as the warm-mix-asphalt mixture is performed to the artificial zeolite. Use to the use of this mixture, it is confirmed to be able to decrease the mixing temperature of the asphalt mixture at 30°C by the laboratory experiment. Moreover the property changes

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Performance Evaluation of Recycled SMA Mixtures with Warm ...

The purpose of this paper is to study the pavement performance of warm-mix recycled SMA mixture. This paper presents a comparative study on performances of aged mixture and warm-mix recycled SMA adding regenerator and warm-mix agent. The results of air void content show that the best mixing temperature of warm-mix recycled SMA mixture is 140 degree centigrade.

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Air-Void Distribution Analysis of Asphalt Mixture Using ...

Oct 10, 2013  Heterogeneous air void distribution is a common phenomenon in asphalt mixtures and is intimately related to the behavior of the asphalt mixture. Air void distribution within an asphalt mixture specimen is related to several factors, such as compaction effort, method of compaction (equipment), and aggregate gradation.

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Application of zeolites as fillers in mix asphalt

zeolite Aspha-min® replaces the filler in the warm mix asphalt (WMA) procedure and it should be evidenced as a filler in the investigations [4,5].In this technology zeolite is mass batched in the amount of 0,3% in relation to the WMA mass [6,7].

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Environmentally friendly road asphalt mixtures

(AC 11 O) with 1.25 % of crumb rubber compacted at 145 °C. The third one was warm mix asphalt concrete (WMA AC 11 O) with 0.3 % of natural zeolite compacted at 125 °C. The density of tested asphalt mixtures and void content each mixture for are shown in Fig. 1. All mixtures comply with European standard. 0,0 0,5 1,0 1,5 2,0 2,5 3,0 3,5 4,0 4 ...

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Visco-elastic characterisation of zeolite modified asphalt ...

A recent warm mix asphalt technology uses zeolite powders as an additive to reduce production temperature and improve workability. With an increase in temperature, water is released from the zeolite crystalline structure and vaporised into bubbles within the binder, and thus gas, fluid, and solid phases simultaneously exist in

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Copyright by Zelalem Alebel Arega 2014

Characteristics of Foamed Asphalt Binders for Warm Mix Asphalt Applications by Zelalem Alebel Arega, B.S.; M.S. Dissertation Presented to the Faculty of the Graduate School of The University of Texas at Austin in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy The University of

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Study on the Cooling Effect of Zeolite Powder to High ...

Compared with tradition asphalt mixture, the construction temperature of high viscosity asphalt mixture is higher in the tunnel construction. It is necessary to adopt the warm mix technique of adding warm mix additives in high viscosity asphalt. The paper analysis the temperature decrease effect in adding zeolite powder in high viscosity asphalt and the performance of asphalt mixture with ...

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Model Development for the Prediction of the Resilient ...

workability, and extended paving window [5]. In this study, zeolite has used as an additive to achieve the desired asphalt warm mixture and added the same to the mixture at about 0.3% of its weight, which resulted in a reduction of the production temperature by about 30oC as compared to the control mixture [6]. The resilient modulus is the elastic

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ANALYSIS OF CONNECTED AIR VOIDS IN WARM MIX ASPHALT

ABSTRACT: Warm mix asphalt mixtures (WMA) are asphalt mixtures produced at reduced temperatures, as compared to conventional hot mix asphalt (HMA). Temperature reductions in the order of 10 to 50°C are possible through the incorporation of diverse WMA-type additives. However, different aspects, including the mixture internal structure of WMA, are still an object of research.

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Reuse of Zeolite By-Products Derived from Petroleum ...

May 02, 2019  The reduction in consumption of natural resources (fuel, gas, etc.) and contaminant emissions (CO 2 , CO, NO x , etc.) during the production of asphalt mixtures has become one of the main challenges in road engineering. Warm mix asphalts (WMAs) have been developed in order to achieve this objective while ensuring the mechanical performance and durability of traditional hot mix asphalts (HMAs).

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Evaluation of Using Waste Road Construction Materials with ...

Jul 15, 2017  Abstract. One of the hottest topics in asphalt pavement today is applying warm asphalt mix to reduce the mixing temperature with 20 to 40 °C, eliminate the greenhouse emissions and conserve the fuel required by less energy needed by using Zeolite and Sasobit additives with polymers to improve properties of

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Mechanical behavior of asphalt mixtures containing silica ...

Jun 16, 2018  Asphalt mixtures were manufactured at different manufacturing and compaction temperatures, using four different silica gels. Static and dynamic tests were carried out to determine their behavior in asphalt mixtures. The results were compared with those obtained using hot-mix asphalt and warm-mix asphalt manufactured with zeolite.

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WARM MIX ASPHALT (WMA)

as zeolite. Once the water is added to the hot asphalt binder, it expands due to conversion of liquid to gas/steam. The small bubbles generated act to reduce the viscosity of the asphalt binder coating on the rock, thereby allowing the mix to be handled and worked at lower temperatures.

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Redalyc.INTERNAL STRUCTURE OF LABORATORY COMPACTED

KEYWORDS: Warm-mix asphalt (WMA), hot-mix asphalt (HMA), mixture internal structure, air voids (AV), X-ray computed tomography (X-ray CT), pavement structure. RESUMEN: Las mezclas asfálticas tibias (MAT) son mezclas asfálticas fabricadas a menores temperaturas (i.e., 30–50 °C) que las mezclas asfálticas en caliente (MAC) convencionales.

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NJDOT Research Project Manager Paul Thomas

The concept and use of warm mix asphalt (WMA) is becoming more popular in the asphalt industry. ... PHASE 4 – RUTTING POTENTIAL OF WARM MIX ASPHALT 52 Asphalt Binder and Mixture Properties 52 Permanent Deformation Testing 52 Mixture Stiffness 53 ... Master Stiffness Curves for “LEA – with RAP” Mix with Different Air 90 . Void Levels .

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