Application of diluted methanol to allow the production of latex modified asphalt mixture with lower energy consumption

2020 ◽  
Vol 262 ◽  
pp. 120028
Author(s):  
Muhammad Khuzaimi Aziz ◽  
Mohd Rosli Mohd Hasan ◽  
Sharvin Poovaneshvaran ◽  
Guo Tai ◽  
Hainian Wang
Keyword(s):  
Energy Consumption ◽  
Lower Energy ◽  
Asphalt Mixture ◽  
Modified Asphalt

scholarly journals Effects of Selected Warm Mix Asphalt Additives on Viscosity Properties of Binder

2018 ◽  
Vol 1 (1) ◽  
pp. 80-84
Author(s):  
Bekir Aktas ◽  
Şuayıp Aytekin ◽  
Şevket Aslan
Keyword(s):  
Energy Consumption ◽  
Lower Energy ◽  
Asphalt Mixture ◽  
Warm Mix Asphalt ◽  
Asphalt Mixtures ◽  
Energy Costs ◽  
Great Effort ◽  
Rotational Viscometer ◽  
Production Temperature ◽  
Emission Ratios

Asphalt industry has spent great effort to reduce mixing and compaction temperatures of the asphalt mixture because of increasing emission ratios and energy costs. The production of Warm Mix Asphalt (WMA) is related to attaining proper viscosity value of the binder to increase aggregate-binder bonding and compaction of the mixture at lower temperatures. The most important advantages of WMA are lower energy consumption and less pollution. Generally, the production temperature of the asphalt mixture depends on the asphalt properties. In this study, effects of selected warm mix asphalt additives of a certain amount by weight are investigated in terms of viscosity in a Brookfield Rotational Viscometer. The reducing viscosity of the binders will increase production and compaction ability of the mixtures. Also, it will allow to reduce mixing and compaction temperature. Therefore, with the decreased cooling rate asphalt mixtures can haul longer distances and give more time for site construction. The findings of this study show that under the same rotational speed viscosity decreases when additives are used.

Performance evaluation of tourmaline modified asphalt mixture based on grey target decision method

2019 ◽  
Vol 205 ◽  
pp. 137-147 ◽  
Author(s):  
Qian Chen ◽  
Chaohui Wang ◽  
Penghui Wen ◽  
Xiaolong Sun ◽  
Tengteng Guo
Keyword(s):  
Performance Evaluation ◽  
Asphalt Mixture ◽  
Modified Asphalt ◽  
Decision Method

scholarly journals MECHANICAL PERFORMANCE OF ASPHALT MIXTURE CONTAINING CUP LUMP RUBBER

2019 ◽  
Vol 81 (6) ◽  
Author(s):  
Norfazira Mohd Azahar ◽  
Norhidayah Abdul Hassan ◽  
Ramadhansyah Putra Jaya ◽  
Hasanan Md. Nor ◽  
Mohd Khairul Idham Mohd Satar ◽  
...  
Keyword(s):  
Mechanical Performance ◽  
Resilient Modulus ◽  
Permanent Deformation ◽  
Asphalt Binder ◽  
Asphalt Mixture ◽  
Modified Asphalt ◽  
Dynamic Creep ◽  
Aging Conditions ◽  
Public Work Department ◽  
Indirect Tensile

The use of cup lump rubber as an additive in asphalt binder has recently become the main interest of the paving industry. The innovation helps to increase the natural rubber consumption and stabilize the rubber price. This study evaluates the mechanical performance of cup lump rubber modified asphalt (CMA) mixture in terms of resilient modulus, dynamic creep and indirect tensile strength under aging conditions. The CMA mixture was prepared using dense-graded Marshall-designed mix and the observed behavior was compared with that of conventional mixture. From the results, both mixtures passed the volumetric properties as accordance to Malaysian Public Work Department (PWD) specification. The addition of cup lump rubber provides better resistance against permanent deformation through the enhanced properties of resilient modulus and dynamic creep. Furthermore, the resilient modulus of CMA mixture performed better under aging conditions.  

scholarly journals Effects of the Geometric Parameters of Mixer on the Mixing Process of Foam Concrete Mixture and Its Energy Efficiency

2020 ◽  
Vol 10 (22) ◽  
pp. 8055
Author(s):  
Sergey A. Stel’makh ◽  
Evgenii M. Shcherban’ ◽  
Anatolii I. Shuiskii ◽  
Al’bert Yu. Prokopov ◽  
Sergey M. Madatyan ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Lower Energy ◽  
Geometric Parameters ◽  
Concrete Mixture ◽  
Mixing Process ◽  
Conical Part ◽  
Foam Concrete ◽  
Optimal Range ◽  
Optimal Values

The paper studies the influence of the geometric parameters of the mixer on the mixing process, the construction of the mixing body, its location in the mixer bulk, and the mixer shape and geometry. The technique of calculating the power spent on mixing the foam concrete mixture is described. The effects of the ratio of the mixture height to the mixer diameter, the number and width of reflective partitions, and the shape of the conical part of the mixer on the homogeneity of the foam concrete mixture and the power consumption are considered. The optimal ratios of the foam concrete mixture height to the mixer diameter have been determined. Moreover, the optimal range of the ratios of the partition width to the mixer diameter has been established, in order to obtain a homogeneous foam concrete mixture throughout the volume with lower energy consumption. The optimal values of the angle of the mixer conical part for the preparation of a foam concrete mixture have been determined.

One-pot three-step mechanically assisted synthesis and catalytic performance of tripodal metallic complexes

2021 ◽  
Author(s):  
Rima Tedjini ◽  
Raquel Viveiros ◽  
Teresa Casimiro ◽  
Vasco D.B. Bonifácio
Keyword(s):  
Energy Consumption ◽  
Lower Energy ◽  
Catalytic Performance ◽  
Green Technology ◽  
Waste Reduction ◽  
One Pot ◽  
Reaction Conversion

Mechanosynthesis is an emergent green technology that proceeds under solventless or vestigial solvent conditions. Major advantages relay in waste reduction and lower energy consumption, without compromising or enhancing reaction conversion....

scholarly journals Characteristics of asphalt mixes with FT additive

2012 ◽  
Vol 20 (1) ◽  
pp. 35-40
Author(s):  
S. Štefunková
Keyword(s):  
Energy Consumption ◽  
Low Temperature ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Environmental Effects ◽  
Asphalt Mixture ◽  
Working Environment ◽  
Gas Emissions ◽  
Asphalt Mixes ◽  
Save Energy

Characteristics of asphalt mixes with FT additiveThis article is focused on low-temperature asphalt mixture technologies using FT additive and RAP. The modern production and use of asphalt mixture technologies with reduced temperatures has many advantages. These advantages mainly help to save energy and the environment. Lower temperatures enable a reduction in energy consumption, a more acceptable working environment for workers, a reduction in negative environmental effects, such as greenhouse gas emissions, and an improvement in the workability of mixtures and a prolongation of their duration. This technology is currently becoming popular in many countries.

Rubber Modified Asphalt Mixture Properties and Mechanical Testing

2011 ◽  
Vol 105-107 ◽  
pp. 810-817 ◽  
Author(s):  
Rong Hui Zhang ◽  
Jia Liu ◽  
Jian Chao Huang ◽  
Yi Fu
Keyword(s):  
Asphalt Pavement ◽  
Asphalt Mixture ◽  
Asphalt Mixtures ◽  
Specimen Preparation ◽  
Twin Screw Extrusion ◽  
Modified Asphalt ◽  
Flexural Tensile Strength ◽  
Screw Extrusion ◽  
Twin Screw ◽  
Compound Particle

To solve the high-temperature rutting problem of asphalt pavement, the old rubber of the tire rubber and plastic of general polyethylene waste composite modified asphalt mixture is proposed. The plastic and rubber compound particle was made by the rubber through efficient desulfurization additives, pre-swelling, twin-screw extrusion equipment. The particles mixed with the asphalt mixtures specimen preparation and the dynamic stability experiments, composite beam fatigue experiments, flexural tensile strength and modulus experiments and anti-reflective pavement cracks and other mechanical experiments are performed. The comparative data obtained by the rubber and plastic composited modified asphalt mixtures and SBS asphalt mixtures prove that the rubber and plastic composited modified asphalt mixtures have excellent rutting resistance and fatigue resistance.

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