scholarly journals Performance Improvisation of Bituminous Roads using waste Plastic Material

2019 ◽  
Vol 1 (1) ◽  
pp. 54-61
Author(s):  
Xianglin
Keyword(s):  
Mechanical Properties ◽  
Plastic Material ◽  
Cross Linking ◽  
Waste Plastics ◽  
Bituminous Mixture ◽  
Chemical Additives ◽  
Waste Plastic ◽  
Bituminous Mixtures ◽  
Chemically Modified ◽  
Recycled Waste

Utilization of waste plastic as a aggregate in bituminous mix results in weak bonding between the plastic and bitumen. This study reports on the feasibility of using plastic waste and chemical additives to improvise the performance and mechanical properties of bituminous mixtures. The selected recycled waste plastics were used as partial aggregate replacement in bituminous mix product. Strong oxidizing mixture of dichromate and sulphuric acid was used to treat the plastic, while the bitumen was treated with a cross linking agent, polyethylene mine. Three modified bituminous mixtures were prepared and the stiffness results were compared with the control bituminous mixture. It was observed that the stiffness increased by 10% for the chemically modified bituminous mixtures. This improvement is attributed to an increase in the bonding forces between the aggregates and the bitumen. Besides, a mechanism is proposed in order to explain the effect of the chemical additives on the increase in the stiffness of the bituminous mixture.

scholarly journals A Clean and Sustainable Cellulose-Based Composite Film Reinforced with Waste Plastic Polyethylene Terephthalate

2020 ◽  
Vol 2020 ◽  
pp. 1-7
Author(s):  
Airong Xu ◽  
Yongxin Wang ◽  
Xingmin Xu ◽  
Zhihong Xiao ◽  
Rukuan Liu
Keyword(s):  
Mechanical Properties ◽  
Polyethylene Terephthalate ◽  
Chemical Structure ◽  
Environmental Issues ◽  
Waste Plastics ◽  
Mass Ratio ◽  
Thermal Compression ◽  
Waste Plastic ◽  
Compression Treatment ◽  
Varying Mass

With the widespread use and increasing consumption of PET, the amount of waste PET is growing rapidly, and the accompanied environmental problems will become more and more serious. Therefore, the recycling and reuse of PET are of great significance for not only saving resources but also solving environmental issues. In this study, Methylcellulose (MC) composites reinforced with waste plastics polyethylene terephthalate (PET) were prepared by casting an MC/PET solution with a varying mass ratio of MC to PET. Systematic investigations were performed to reveal the effect of the MC/PET mass ratio on the mechanical property, chemical structure, and thermal properties. The resultant findings indicate that the addition of 3% waste plastics PET to MC could notably enhance the tensile strength by about 24% as compared with neat MC. Interestingly, the elongation of the MC/PET composite kept increasing with increasing waste plastics PET. At the same time, thermal compression treatment could also enhance the mechanical properties of the composite. Moreover, the composites also displayed higher thermal stability than MC. In addition, the crystallinity and morphology of the composite were estimated by XRD and SEM.

scholarly journals Effect of Recycled Plastic in Mortar and Concrete and the Application of Gamma Irradiation - A Review

2018 ◽  
Vol 65 ◽  
pp. 05027 ◽  
Author(s):  
Aliyu Usman ◽  
Muslich Hartadi Sutanto ◽  
Madzlan Napiah
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Compressive Strength ◽  
Cement Mortar ◽  
Plastic Waste ◽  
Waste Plastic ◽  
Detailed Review ◽  
Concrete Production ◽  
Recycled Plastics ◽  
Recycled Waste

The utilization of a large amount of waste in concrete production is considered the best alternative for solving the issues associated with improper disposal. Plastic waste is considered as one of such waste and could be utilized in several applications. The drawback associated with the utilization of a large amount of plastic waste is the decrease in the mechanical properties of the mortar or concrete as the case may be. This paper presents a detailed review about waste recycled plastics and research published on the effect of non-irradiated recycled plastic on the mechanical properties of cement mortar and cement concretes as either fillers or aggregates and the application of gamma radiation on the recycled plastic waste. The effect of recycled waste plastic on compressive strength, flexural strength and splitting tensile strength is discussed in this paper.

Enhancement of the Mechanical Property of Apatite-Fiber Scaffold Using Type I-Collagen

2007 ◽  
Vol 361-363 ◽  
pp. 943-946
Author(s):  
S. Motojima ◽  
N. Igeta ◽  
Michiyo Honda ◽  
Nobuyuki Kanzawa ◽  
Mamoru Aizawa
Keyword(s):  
Mechanical Properties ◽  
Type I Collagen ◽  
Three Dimensional ◽  
Collagen Gel ◽  
Cross Linking ◽  
Type I ◽  
Collagen Scaffolds ◽  
Chemically Modified ◽  
Strength Tests ◽  
Fiber Scaffolds

We have successfully fabricated apatite-fiber scaffolds (AFSs) that enable three-dimensional cell culture. The AFSs possessing large pores of 100~250 μm and micro pores of about 5 μm were fabricated by firing the green compacts consisting of the single-crystal apatite fibers and the carbon beads with a size of 150 μm. In order to enhance the mechanical properties of the AFSs, we have improved the process of AFS fabrication: Collagen gel (type I) solutions were introduced into the pores in the scaffolds; in addition, the resulting apatite/collagen scaffolds were chemically modified by thermally dehydrated cross-linking. Actually, the results of compressive strength tests show that the value of the AFS with chemically cross-linked I-collagen was about twice as high as that of the conventional AFS without I-collagen. We conclude that combination of I-collagen and thermal dehydrated cross-linking is effective for enhancement of the mechanical properties of AFSs.

Research on Performance of Road Application of Converter Bituminous Steel-Slag Mixture of Jigang Group Co. Ltd

2012 ◽  
Vol 178-181 ◽  
pp. 1161-1170 ◽  
Author(s):  
Fa Liang Lu ◽  
Jin Li
Keyword(s):  
Mechanical Properties ◽  
Steel Slag ◽  
Temperature Stability ◽  
Fatigue Property ◽  
Lower Surface ◽  
Converter Steel ◽  
High Temperature Stability ◽  
Bituminous Mixture ◽  
Test Analysis ◽  
Bituminous Mixtures

To detect the chemical composition and physic-mechanical properties of converter steel slag of Jigang Group Co., Ltd and evaluate its feasibility as aggregate of the bituminous mixture. Prepare three kinds of AC20 bituminous mixtures by all using the steel slag as aggregate, by partially using the steel slag as aggregate and by all using macadam as aggregate respectively, and analyze the physic-mechanical properties of such three kinds of bituminous mixtures. The test analysis results prove that the high-temperature stability, low-temperature crack resistance and fatigue property of the bituminous mixture with all steel slag as aggregate or partial steel slag as aggregate are superior to those of macadam mixture. Although its water stability is a little bad, it still can meet the specification requirements, and it is suggested to be used widely in the middle and lower surface layers of pavement structure layer.

scholarly journals Performance Testing of Hot Mix Asphalt Modified with Recycled Waste Plastic

2021 ◽  
Author(s):  
Shadi Saadeh ◽  
Pritam Katawał
Keyword(s):  
Fatigue Cracking ◽  
Waste Plastics ◽  
Plastic Pollution ◽  
Cracking Resistance ◽  
Waste Plastic ◽  
Rutting Resistance ◽  
The World ◽  
Ct Test ◽  
Recycled Waste ◽  
The Ideal

Plastic pollution has become one of the major concerns in the world. Plastic waste is not biodegradable, which makes it difficult to manage waste plastic pollution. Recycling and reusing waste plastic is an effective way to manage plastic pollution. Because of the huge quantity of waste plastic released into the world, industries requiring a large amount of material, like the pavement industry, can reuse some of this mammoth volume of waste plastics. Similarly, the use of reclaimed asphalt pavement (RAP) has also become common practice to ensure sustainability. The use of recycled waste plastics and RAP in HMA mix can save material costs and conserve many pavement industries’ resources. To successfully modify HMA with RAP and waste plastic, the modified HMA should exhibit similar or better performance compared to conventional HMA. In this study, recycled waste plastic, linear low-density polyethylene (LLDPE), and RAP were added to conventional HMA, separately and together. The mechanical properties of conventional and modified HMA were examined and compared. The fatigue cracking resistance was measured with the IDEAL Cracking (IDEAL CT) test, and the Hamburg Wheel Tracking (HWT) test was conducted to investigate the rutting resistance of compacted HMA samples. The IDEAL CT test results showed that the cracking resistance was similar across plastic modified HMA and conventional HMA containing virgin aggregates. However, when 20% RAP aggregates were used in the HMA mix, the fatigue cracking resistance was found to be significantly lower in plastic modified HMA compared to conventional HMA. The rutting resistance from the HWT test at 20,000 passes was found to be similar in all conventional and modified HMA.

scholarly journals Quality restoration of waste polyolefin plastic material through the dissolution-reprecipitation technique

2014 ◽  
Vol 20 (2) ◽  
pp. 163-170 ◽  
Author(s):  
Jasim Hadi ◽  
Faisal Najmuldeen ◽  
Iqbal Ahmed
Keyword(s):  
Mechanical Properties ◽  
Plastic Material ◽  
Polymer Concentration ◽  
Maximum Load ◽  
Recycling Process ◽  
Scanning Calorimetry ◽  
Experimental Conditions ◽  
Waste Plastic ◽  
Before And After ◽  
Waste Polymer

This study examines the restoration of waste plastic polymers based on LDPE, HDPE or PP through dissolution/reprecipitation. Experimental conditions of the recycling process, including type of solvent/non-solvent, original polymer concentration and dissolution temperature were optimized. Results revealed that by using the different prepared solvents/non-solvents at various ratios and temperatures, the polymer recovery was always greater than 94%. The FTIR spectra and the thermal properties (melting point and crystallinity) of the polymers before and after recycling were measured using Differential Scanning Calorimetry (DSC). Mechanical properties of the waste polymer before and after recycling were also measured. Besides small occasional deviations, the properties did not change. The tensile strength at maximum load was 7.1, 18.8, and 7.4 MPa for the recycled LDPE, HDPE and PP, respectively and 7.78, 18.54 and 7.86 MPa for the virgin polymer. For the waste, the strength was 6.2, 15.58 and 6.76 MPa.

A Comprehensive Review on Blast Furnace

2018 ◽  
Vol 4 (11) ◽  
pp. 6
Author(s):  
Upendra Kumar ◽  
Avinash Patidar ◽  
Bhupendra Koshti
Keyword(s):  
Blast Furnace ◽  
Metallurgical Coke ◽  
Waste Plastics ◽  
Blast Furnaces ◽  
Liquid Hydrocarbons ◽  
Comprehensive Review ◽  
Global Performance ◽  
Flow Heat ◽  
And Control ◽  
Recycled Waste

The design and control of blast furnace (BF) ironmaking must be optimized in order to be competitive and sustainable, particularly under the more and more demanding and tough economic and environmental conditions. To achieve this, it is necessary to understand the complex multiphase flow, heat and mass transfer, and global performance of a BF. In this paper injection of alternative reducing agents via lances in the tubers of blast furnaces is discussed to reduce the consumption of metallurgical coke. Besides liquid hydrocarbons and pulverized coal the injection of recycled waste plastics is possible, offering the opportunity to chemically reuse waste material and also utilize the energy contained in such remnants.

Effects of particle sizes, wood to cement ratio and chemical additives on the properties of sesendok (Endospermum Diadenum) cement-bonded particleboard

2010 ◽  
Vol 7 (2) ◽  
pp. 57
Author(s):  
Jamaludin Kasim ◽  
Shaikh Abdul Karim Yamani ◽  
Ahmad Firdaus Mat Hedzir ◽  
Ahmad Syafiq Badrul Hisham ◽  
Mohd Arif Fikri Mohamad Adnan
Keyword(s):  
Mechanical Properties ◽  
Experimental Investigation ◽  
Cement Content ◽  
Particle Sizes ◽  
Thickness Swelling ◽  
Chemical Additives ◽  
Board Density ◽  
Cement Ratio ◽  
Aluminium Silicate ◽  
Cement Board

An experimental investigation was performed to evaluate the properties of cement-bonded particleboard made from Sesendok wood. The target board density was set at a standard 1200 kg m". The effect offarticle size, wood to cement ratio and the addition ofsodium silicate and aluminium silicate on the wood cement board properties has been evaluated. A change ofparticle size from 1.0 mm to 2.0 mm has a significant effect on the mechanical properties, however the physical properties deteriorate. Increasing the wood to cement ratio from 1:2.25 to 1:3 decreases the modulus ofrupture (MOR) by 11% and the addition ofsodium silicate improves valuesfurther by about 28% compared to the addition ofaluminum silicate. The modulus ofelasticity (MOE) in general increases with increasing cement content, but is not significantly affected by the addition ofsodium silicate or aluminium silicate, although the addition of their mixture (sodium silicate andaluminium silicate) consistentlyyields greater MOE values. Water absorption and thickness swelling is significantly affected by the inclusion ofadditives and better values are attained using higher wood to cement ratios.

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