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Journal articles on the topic 'Expanded polystyrene'

Author: Grafiati

Published: 4 June 2021

Last updated: 29 January 2023

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1

Bedanta, Sagar, Sonam Mishra, Aloka Kumar Rout, Abinash Mohanty, and Ananya punyotoya Parida. "Expanded Polystyrene Concrete." International Journal for Research in Applied Science and Engineering Technology 10, no. 5 (May 31, 2022): 1466–70. http://dx.doi.org/10.22214/ijraset.2022.42547.

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Abstract: Expanded polystyrene (EPS) geofoam is a lightweight material that has been used in engineering applications since at least the 1950s. Its density is about a hundredth of that of soil. It has good thermal insulation properties with stiffness and compression strength comparable to medium clay. It is utilized in reducing settlement below embankments, sound and vibration damping, reducing lateral pressure on sub-structures, reducing stresses on rigid buried conduits and related applications. Expanded polystyrene waste in a granular form is used as lightweight aggregate to produce lightweight structural concrete with the unit weight varying from 1200 to 2000 kg/m³. The polystyrene aggregate concrete was produced by partially replacing coarse aggregate in the reference (normal weight) concrete mixtures with equal volume of the chemically coated crushed polystyrene granules. This paper reports the results of an experimental investigation into the engineering properties, such as compressive strength, modulus of elasticity, drying shrinkage and creep, of polystyrene aggregate concrete varying in density. The main objectives of this study are the cement contents for the concrete mixtures used were 410 and 540kg/m³. Keywords: EPS, Cement, aggregate ,Compressive strength

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2

Bedeković, Gordan, Ivana Grčić, Aleksandra Anić Vučinić, and Vitomir Premur. "RECOVERY OF WASTE EXPANDED POLYSTYRENE IN LIGHTWEIGHT CONCRETE PRODUCTION." Rudarsko-geološko-naftni zbornik 34, no. 3 (2019): 73–80. http://dx.doi.org/10.17794/rgn.2019.3.8.

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3

Kang, Suk-Pyo, and Byoung-Il Hwang. "Characteristic of Light Weight Mortar using Waste Expanded Polystyrene and Expanded Polystyrene Beads." Journal of the Korea Institute of Building Construction 17, no. 5 (October 20, 2017): 393–401. http://dx.doi.org/10.5345/jkibc.2017.17.5.393.

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4

ADEALA, Adeniran Jolaade, and Olugbenga Babajide SOYEM. "Structural Use of Expanded Polystyrene Concrete." International Journal of Innovative Science and Research Technology 5, no. 6 (July 10, 2020): 1131–38. http://dx.doi.org/10.38124/ijisrt20jun849.

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Expanded polystyrene (EPS) wastes are generated from industries and post-consumer products. They are non-biodegradable but are usually disposed by burning or landfilling leading to environmental pollution. The possibility of using EPS as partial replacement for fine aggregates in concrete has generated research interests in recent times. However, since the physical and mechanical properties of EPS are not like those of conventional fine aggregates, this study is focussed on the use of EPS as an additive in concrete while keeping other composition (sand and granite) constant. Expanded polystyrene was milled, the bulk density of EPS was 10.57kg/m3 and particle size distributions were determined. Engineering properties of expanded polystyrene concrete were determined in accordance with BS 8110-2:1985. The result showed that the amount of expanded polystyrene incorporated in concrete influence the properties of hardened and fresh concrete. The compressive strengths of 17.07MPa with 5 % expanded polystyrene concrete at 28 days for example can be used as a lightweight concrete for partitioning in offices. Incorporating expanded polystyrene granules in a concrete matrix can produce lightweight polystyrene aggregate concrete of various densities, compressive strengths, flexural strengths and tensile strengths. In conclusion, this reduces environmental pollution, reduction in valuable landfill space and also for sustainability in construction companies

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5

Ferrándiz-Mas, V., and E. García-Alcocel. "Durability of expanded polystyrene mortars." Construction and Building Materials 46 (September 2013): 175–82. http://dx.doi.org/10.1016/j.conbuildmat.2013.04.029.

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6

Curtis, C. F., and J. Minjas. "Expanded polystyrene for mosquito control." Parasitology Today 1, no. 1 (July 1985): 36. http://dx.doi.org/10.1016/0169-4758(85)90106-1.

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7

IIZUKA, Atsushi, Atsushi MIZUKOSHI, Kyoko SAITO, Takako YAMAKI, Miyuki NOGUCHI, and Yukio YANAGISAWA. "Emission flux of styrene monomer from expanded polystyrene beads and expanded polystyrene-used products." Indoor Environment 13, no. 2 (2010): 155–61. http://dx.doi.org/10.7879/siej.13.155.

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8

Hoang Minh, Duc, and Ly Le Phuong. "Effect of matrix particle size on EPS lightweight concrete properties." MATEC Web of Conferences 251 (2018): 01027. http://dx.doi.org/10.1051/matecconf/201825101027.

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Expanded polystyrene lightweight concrete is a composite which can be made by adding expanded polystyrene aggregate in normalweight concrete (as matrix). The research was focused on the effect of properties and volume of the matrix on the properties of lightweight concrete. The results show that properties of structural polystyrene concrete, such as workability and compressive strength, depend on the aggregate size of the matrix. It also shows that decreasing aggregate size of the matrix is the effective way to increase workability and compressive strength of lightweight concrete. When the density of concretes decrease by 200 kg/m³, slump values decrease by about 20 to 30 mm with lightweight concrete mixtures using maximum particle size of 0.63 mm, while slump values decrease by about 40 mm with the mixtures using maximum particle size of 20 mm. At the same density, the compressive strength of the structural polystyrenre concrete significantly decreased when the coarse aggregate diameter greater than 10 mm. Therefore, coarse aggregates with diameter size are smaller than 10 mm was recommended to use for matrix. In the result, expanded polystyrene concrete with density from 1,400 kg/m³ to 2,000 kg/m³ and compressive strength more than 20 MPa for structural application was made.

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9

Herki, B. A., and Jamal M. Khatib. "Lightweight Concrete Incorporating Waste Expanded Polystyrene." Advanced Materials Research 787 (September 2013): 131–37. http://dx.doi.org/10.4028/www.scientific.net/amr.787.131.

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This paper covers the results of an experimental investigation on mechanical and durability properties of concrete containing waste polystyrene based lightweight aggregate called Stabilised Polystyrene (SPS) as a partial replacement of natural aggregates. The properties investigated in this paper were water absorption by capillary action and total absorption, compressive strength and ultrasonic pulse velocity (UPV). The composite aggregate was formed with 80% waste polystyrene which was shredded to different sizes, 10% of a natural additive to improve the resistance to segregation and 10% Portland cement. The natural fine aggregate were replaced with 0%, 30%, 60% and 100% (by volume) of SPS. There was an increasing in water absorption and a decreasing in compressive strength and UPV with the increase in SPS aggregate content in concrete.

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10

Cole, Janet C., and Diane E. Dunn. "Expanded Polystyrene as a Substitute for Perlite in Rooting Substrate." Journal of Environmental Horticulture 20, no. 1 (March 1, 2002): 7–10. http://dx.doi.org/10.24266/0738-2898-20.1.7.

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Abstract Stem cuttings of rose-of-sharon (Hibiscus syriacus L. ‘Jeanne d'Arc’), barberry (Berberis thunbergii DC. ‘Crimson Pygmy’), juniper (Juniperus horizontalis Moench. ‘Plumosa Compacta’), and arborvitae (Thuja occidentalis L. ‘Woodwardii’) were rooted in substrates consisting of 0%, 25%, 50%, 75%, or 100% (by vol) perlite or expanded polystyrene beads with peat. Percentage of rose-of-sharon cuttings rooted and root ratings were lower with polystyrene than with perlite. Statistically, more barberry cuttings rooted with polystyrene (78.8%) than with perlite (78.3%), but the difference in rooting between polystyrene and perlite was not horticulturally significant. More juniper and arborvitae cuttings rooted with 50% perlite than with other perlite concentrations. Percentage of rooted juniper cuttings decreased but percentage of rooted arborvitae cuttings increased as polystyrene concentration in the substrate increased. More roots and longer roots formed on juniper cuttings with perlite than with the same concentration of polystyrene in the substrate. In contrast, arborvitae cuttings had more roots with 25% perlite than with 25% polystyrene, but arborvitae cuttings in 50%, 75%, or 100% polystyrene had more roots than cuttings in the same concentration of perlite. Results indicate expanded polystyrene is a reasonable substitute for perlite in rooting substrate for barberry, juniper, and arborvitae if appropriate ratios of polystyrene to peat are used.

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11

Chen, Rong Lin, Zhi Xing Zeng, and Ke Min Zhou. "A Review on the Research of Concrete with Expanded Polystyrene Beads as Aggregate." Advanced Materials Research 374-377 (October 2011): 1598–601. http://dx.doi.org/10.4028/www.scientific.net/amr.374-377.1598.

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This paper is an overview of research about the concrete with expanded polystyrene beads as its aggregate in the past. First, a brief introduction to the expanded polystyrene beads concrete is given. Then, the researches of these years is presented and discussed, and the important studies are described in detail. Finally, the paper gives a summary of the research status and prospects of expanded polystyrene beads concrete.

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12

Páleš, Dušan, and Milada Balková. "Regression analysis of expanded polystyrene properties." Mathematics in Education, Research and Applications 6, no. 2 (December 30, 2020): 54–63. http://dx.doi.org/10.15414/meraa.2020.06.01.54-63.

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Own measurements examine the tensile strength of expanded polystyrene (EPS) depending on its bulk density. 30 samples were used to calculate the correlation coefficients between these two properties. In addition to the standard Pearson coefficient, we also calculate the rank correlation coefficients, Spearman´s and Kendall´s. By testing the hypotheses, we verify the correlation of the entire population. After finding a relatively close correlation (0.6 - 0.8), we apply different regression models, especially polynomial, but also exponential. We evaluate the properties of parameters in models, their point estimates and confidence intervals. Based on the characteristics of each of the seven regressions, we found the best exponential form of the dependence, before the linear polynomial. The complexity of a mathematical model does not always mean that it is also a more accurate approximation. On the other hand, a simple model makes it possible, in addition to its ease of use, to more closely reflect the examined dependence.

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13

Páleš, Dušan, and Milada Balková. "Regression analysis of expanded polystyrene properties." Mathematics in Education, Research and Applications 6, no. 2 (December 30, 2020): 54–63. http://dx.doi.org/10.15414/meraa.2020.06.02.54-63.

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Own measurements examine the tensile strength of expanded polystyrene (EPS) depending on its bulk density. 30 samples were used to calculate the correlation coefficients between these two properties. In addition to the standard Pearson coefficient, we also calculate the rank correlation coefficients, Spearman´s and Kendall´s. By testing the hypotheses, we verify the correlation of the entire population. After finding a relatively close correlation (0.6 - 0.8), we apply different regression models, especially polynomial, but also exponential. We evaluate the properties of parameters in models, their point estimates and confidence intervals. Based on the characteristics of each of the seven regressions, we found the best exponential form of the dependence, before the linear polynomial. The complexity of a mathematical model does not always mean that it is also a more accurate approximation. On the other hand, a simple model makes it possible, in addition to its ease of use, to more closely reflect the examined dependence.

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14

Páleš, Dušan, and Milada Balková. "Regression analysis of expanded polystyrene properties." Mathematics in Education, Research and Applications 6, no. 2 (December 30, 2020): 54–63. http://dx.doi.org/10.15414/meraa.2020.06.01.54-63.

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Own measurements examine the tensile strength of expanded polystyrene (EPS) depending on its bulk density. 30 samples were used to calculate the correlation coefficients between these two properties. In addition to the standard Pearson coefficient, we also calculate the rank correlation coefficients, Spearman´s and Kendall´s. By testing the hypotheses, we verify the correlation of the entire population. After finding a relatively close correlation (0.6 - 0.8), we apply different regression models, especially polynomial, but also exponential. We evaluate the properties of parameters in models, their point estimates and confidence intervals. Based on the characteristics of each of the seven regressions, we found the best exponential form of the dependence, before the linear polynomial. The complexity of a mathematical model does not always mean that it is also a more accurate approximation. On the other hand, a simple model makes it possible, in addition to its ease of use, to more closely reflect the examined dependence.

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15

Lim, Y. S., T. N. T. Izhar, I. A. Zakarya, S. Y. Yusuf, S. K. Zaaba, and M. A. Mohamad. "Life cycle assessment of expanded polystyrene." IOP Conference Series: Earth and Environmental Science 920, no. 1 (November 1, 2021): 012030. http://dx.doi.org/10.1088/1755-1315/920/1/012030.

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Abstract Expanded polystyrene (EPS) is one of the most common materials used in packaging. In Malaysia, EPS is a type of plastic which is not in the recycling category. Usually, EPS wastes will end up in landfill and incinerator, leading to severe environmental impacts. Therefore, a cradle-to-grave life cycle assessment (LCA) study of EPS was carried out to investigate the potential environmental impacts of EPS. The most significant potential environmental impact will also be identified. Both will be identified under 2 different scenarios. The study was analyzed using GaBi Education Software with the method of TRACI 2.1 to the environmental indicators of global warming potential (GWP), acidification potential (AP), eutrophication potential (EP), and ozone depletion potential (ODP). In scenario 1, the emission percentage for GWP, AP, EP, and ODP are 99.73 %, 0.21 %, 0.06 %, and 3x10-6 %, respectively. As for scenario 2, all the 3 conditions show similar trend with scenario 1. The LCA study of EPS is particularly focused on the manufacturing, distribution, and the end-of-lifetime treatments, with the introduction of recycling into the system. The findings show that manufacturing of EPS is the major contributor of the environmental impacts and GWP contributes to the most significant potential environmental impacts. Overall, recycling was found to have the least impact to the environment, which possibly be used as the new end-of-lifetime treatment of EPS in Malaysia.

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16

Kobayashi, N. "Expanded polystyrene products with sterilising power." Zeolites 11, no. 3 (March 1991): 300. http://dx.doi.org/10.1016/s0144-2449(05)80265-9.

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17

Gnip, I. Y., V. Kersulis, S. Vejelis, and S. Vaitkus. "Water absorption of expanded polystyrene boards." Polymer Testing 25, no. 5 (August 2006): 635–41. http://dx.doi.org/10.1016/j.polymertesting.2006.04.002.

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18

Xue, Gi, Yun Lu, Gaoquan Shi, and Qinpin Dai. "Glass transition of expanded polystyrene coils." Polymer 35, no. 4 (January 1994): 892–94. http://dx.doi.org/10.1016/0032-3861(94)90894-x.

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19

Mohajerani, Abbas, Matthew Ashdown, Luqmaan Abdihashi, and Majidreza Nazem. "Expanded polystyrene geofoam in pavement construction." Construction and Building Materials 157 (December 2017): 438–48. http://dx.doi.org/10.1016/j.conbuildmat.2017.09.113.

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20

Padade, Amit Harihar, and Jnanendranath Mandal. "Expanded Polystyrene Geofoam Based Cellular Reinforcement." Journal of Testing and Evaluation 44, no. 4 (February 4, 2015): 20140273. http://dx.doi.org/10.1520/jte20140273.

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21

Myint, S., M. S. B. Zakaria, and K. R. Ahmed. "Paints Based on Waste Expanded Polystyrene." Progress in Rubber, Plastics and Recycling Technology 26, no. 1 (February 2010): 21–30. http://dx.doi.org/10.1177/147776061002600102.

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22

Samper, M. D., D. Garcia-Sanoguera, F. Parres, and J. López. "Recycling of Expanded Polystyrene from Packaging." Progress in Rubber, Plastics and Recycling Technology 26, no. 2 (May 2010): 83–92. http://dx.doi.org/10.1177/147776061002600202.

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23

Shin, C. "Filtration application from recycled expanded polystyrene." Journal of Colloid and Interface Science 302, no. 1 (October 2006): 267–71. http://dx.doi.org/10.1016/j.jcis.2006.05.058.

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24

DANILUShKIN, A. I., and V. A. DANILUShKIN. "MODELLING OF INDUCTION HEATING OF EXTRUDER BARREL DURING MANUFACTURING EXPANDED POLYSTYRENE SLABS." Urban construction and architecture 1, no. 1 (February 15, 2011): 129–32. http://dx.doi.org/10.17673/vestnik.2011.01.25.

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The mathematical models of the process of indirect induction heating of granulated polystyrene in extruder during manifacturing of expanded polystyrene slabs are viewed. The proposed models are used to design energy-efficient construction of induction heaters in extrusion- type line for the production of expanded polystyrene slabs.

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25

Huo, Wenlong, and Sherong Zhang. "Research and Statistical Analysis on Impact Resistance of Steel Fiber Expanded Polystyrene Concrete and Expanded Polystyrene Concrete." Materials 15, no. 12 (June 14, 2022): 4216. http://dx.doi.org/10.3390/ma15124216.

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Steel fiber foamed concrete (SFFC) combines the impact resistance of steel fiber concrete (SFC) and the energy absorption characteristics of foamed concrete (FC), and it has brought attention to the impact field. Using the mechanical properties of SFFC expanded polystyrene concrete, we prepared (EPSC) specimens with 10%, 20%, 30%, 40%, 50% by volume of expanded polystyrene (Veps), and steel fiber expanded polystyrene concrete (SFEPSC) specimens by adding 1% steel fiber (SF) based on the EPSC in this study. The relationship between compressive strength, the Veps and apparent density was revealed. The relationship between the first crack and the ultimate failure impact of SFEPSC specimens was obtained by a drop-weight test. The impact resistance of SFEPSC and EPSC and the variation law of Veps were studied by mathematical statistics. The log-normal and the two-parameter Weibull distributions were used to fit the probability distribution of impact resistance of the SFEPSC and EPSC specimens. Finally, both types of specimens’ destruction modes and mechanisms were analyzed. The mechanism of the EPS particles and the SFs dissipating impact load energy was analyzed from the energy point of view.

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26

Krause, Paweł, and Artur Nowoświat. "Experimental Studies Involving the Impact of Solar Radiation on the Properties of Expanded Graphite Polystyrene." Energies 13, no. 1 (December 22, 2019): 75. http://dx.doi.org/10.3390/en13010075.

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This article presents the research studies aimed at identifying the behavior of expanded polystyrene with the addition of graphite in the conditions of exposure to solar radiation. For this purpose, a series of in situ tests and laboratory studies were carried out. Three types of material were tested, i.e. expanded polystyrene (EPS) (white polystyrene), polystyrene with the addition of graphite (gray polystyrene) and two-layer polystyrene (gray bottom layer and white top layer). Temperature distributions on the surfaces of the panels in field and laboratory conditions were determined. The distributions of temperature were recorded at varied wind impact (field conditions and laboratory conditions) and at varied impact of solar radiation (laboratory conditions). Based on the conducted experiments, differences in temperature distribution on the surfaces of the tested panels were determined. In addition, geometric changes and deformation levels of the tested white and gray expanded polystyrene panels exposed to artificial sun radiation were determined in laboratory conditions.

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27

Dion, Nathalie, Jacques Goulet, and Patrick Boyaval. "Évaluation du pouvoir adhérant du Lactobacillus helveticus au polystyrène expansé." Canadian Journal of Microbiology 38, no. 7 (July 1, 1992): 672–75. http://dx.doi.org/10.1139/m92-109.

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We measured the surface tension of a three-phase (solid–solid–liquid) system consisting of the bacterium Lactobacillus helveticus in a culture medium containing an expanded polystyrene support, to determine the adherence capacity of the bacteria to the support. The surface tension of the expanded polystyrene and the L. helveticus cells was evaluated by measuring contact angles. The Wilhelmy's microslide method was used to measure the surface tension of the liquid phase. The values obtained showed that the adherence capacity of the L. helveticus cells to expanded polystyrene pellets was not facilitated under the experimental thermodynamic conditions. The pellet surfaces and adhering bacterial cells were examined with a scanning electron microscope. The pellets exhibited several grooves in which microbial cells preferentially accumulated. Key words: Lactobacillus helveticus, adherence, surface tension, expanded polystyrene. [Translated by the journal]

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28

Kataoka, Kouji, and Nobuyasu Ikoma. "Domestic Demand for and Recycling of Expanded Polystyrene, and Possibility of Recycling Expanded Polystyrene as Marine Litter." Marine Engineering 52, no. 5 (2017): 574–78. http://dx.doi.org/10.5988/jime.52.574.

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29

Musalaiah, Modi, and T. Phani Madhavi. "Plastic Waste Management with Expanded Polystyrene Beads." Indian Journal of Environment Engineering 1, no. 4 (November 30, 2022): 1–3. http://dx.doi.org/10.54105/ijee.c1830.111422.

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Plastic waste is the one of the serious environmental issue due to its non-biodegradability nature. The disposing of plastic waste and plastic waste management becomes a major task in developing countries like India due to rapid growth of population and industrialization. Plastic stands in the top most place among variety of solid waste materials, and causes heavy environmental hazards which will affect the future generations and peers. The present study was focused to investigate and understand the attributes of concrete which is made of partial replacement of coarse aggregate with Expanded Polystyrene Beads using M20 mix design. Concrete cubes were casted taking 0%, 5%, 10%, 15% and 20% of Expanded Polystyrene beads as partial replacement of coarse aggregate and tested for 7days, 14days and 28days of compressive strength of concrete.

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30

Khoukhi, Maatouk, Shaimaa Abdelbaqi, and Ahmed Hassan. "Yearly Energy Performance Assessment of Employing Expanded Polystyrene with Variable Temperature and Moisture–Thermal Conductivity Relationship." Materials 12, no. 18 (September 16, 2019): 3000. http://dx.doi.org/10.3390/ma12183000.

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This paper investigated the impact of the changes of thermal conductivity of an expanded polystyrene insulation layer embedded in a typical residential building on the cooling effect at different temperatures and moisture contents. The simulation was performed using expanded polystyrene (EPS) in the extremely hot conditions of Al-Ain (United Arab Emirates, UAE) at different levels of density, denoted as low density LD (12 kg/m3), high density HD (20 kg/m3), ultra-high density UHD (30 kg/m3), and super-high density SHD (35 kg/m3), and three moisture content levels (10%, 20%, and 30%), compared to dry LD insulation material. The thermal performance of the building incorporating polystyrene with variable thermal conductivity (λ-value) was compared to one with a constant thermal conductivity by assessing the additional cooling demand and capacity due to the λ-relationship with time, using e-quest as a building energy analysis tool. The results showed that, when the λ-value was modeled as a function of operating temperature, its effect on the temperature profile during daytime was significant compared with the use of a constant λ-value. The monthly energy consumption for cooling required by the building was found to be higher in the case of variable thermal conductivity for the LD sample. The yearly average change in space cooling demand and cooling capacity when employing polystyrenes with constant and variable thermal conductivity increased with the increase of the moisture content. Indeed, the highest changes in cooling demand and capacity were 6.5% and 8.8% with 30% moisture content polystyrene.

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31

Dan, Olena, and Larysa Trofimova. "A Study of The Properties of Forming Mixtures Containing Polystyrene Wastes." Journal of Casting & Materials Engineering 5, no. 2 (June 9, 2021): 14–19. http://dx.doi.org/10.7494/jcme.2021.5.2.14.

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Expanded polystyrene is widely used as a material for packaging, in modern construction as a heat and sound insulation layer, in thermal insulation systems for buildings, as well as tanks and pipelines. It is additionally used in foundry engineering for the production of models which are gasified during the production of castings from ferrous and non-ferrous alloys under the contact with liquid metal. The use of expanded polystyrene products is associated with waste generation, both in production and in consumption. About 40–50 kg/person of polystyrene waste is generated per year. The peculiarity of polymeric wastes is their resistance to aggressive environments. They do not rot and the destruction processes in natural conditions proceed rather slowly, with the formation of harmful substances that poison the environment. Therefore, the problem of the processing of waste from polymeric materials is of great importance, not only from the standpoint of environmental protection, but also due to the fact that in conditions of a shortage of polymer raw materials, this waste becomes a powerful raw material resource. This article describes the prospects for recycling expanded polystyrene wastes in foundry engineering. In this work, the properties of molding and core sands containing a combined binder, consisting of a solution of expanded polystyrene wastes in turpentine and clay were investigated, and their main characteristics (weight during stretching and crumbling) were determined. Molding and core mixtures, which contain only a binder in the form of a solution of expanded polystyrene in turpentine, have a crude strength of not more than 0.01 MPa. The introduction of a mixture of clay in the amount of 2–3% allows a crude strength of the mixture of up to 0.05 MPa to be obtained. After drying, the investigated mixtures containing a solution of expanded polystyrene wastes and clay have a tensile strength of up to 2.1 MPa. Mixtures into which a solution of polystyrene wastes and clay was introduced have an insignificant gas capacity and satisfactory gas permeability.

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32

Starodub, Yuriy, Roman Veselivskyy, and Oleksandr Vasylenko. "Simulation process of the heat transfer in multilayered structures." MATEC Web of Conferences 247 (2018): 00048. http://dx.doi.org/10.1051/matecconf/201824700048.

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The mathematical model of heat transfer in a metal- expanded polystyrene- metal system is considered in the paper, taking into account the stratification and specificity of heat sources that appear in the process of thermal destruction of expanded polystyrene. Specificity of heat sources is based on the transition of expanded polystyrene from solid to gaseous state during the heating of the prototype in the furnace behind the temperature regime of a standard fire. Considered the problem of the process of nonstationary heat conduction, the simulation was performed taking into account the transition time of expanded polystyrene into the gaseous phase, and also taking into account the time of action of additional heat sources using a numerical scheme based on the finite difference method modelling. The time of the loss of the heat-insulating capacity of the three-layered wall system was determined. A comparative analysis of the results of theoretical and experimental studies to assess their fire resistance was carried out.

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33

Tao, Shiying, Boyang Li, and Hui Huang. "Dissolution of Expanded Polystyrene in Cycloalkane Solutions." Open Journal of Applied Sciences 08, no. 10 (2018): 465–71. http://dx.doi.org/10.4236/ojapps.2018.810037.

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34

Ning, Xun An, Jing Yong Liu, and Zuo Yi Yang. "Research on Expanded Polystyrene Light-aggregate Concrete." Advanced Materials Research 168-170 (December 2010): 276–80. http://dx.doi.org/10.4028/www.scientific.net/amr.168-170.276.

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EPS(Expanded polystyrene)is used as light-weight.By adding fly ash and modified polymers in proper proportion aggregate, and cement is used as adhesive material, the uniformity and stability of pastes can be improved. The EPS light-weight concrete is obtained with good physical mechanical perform ance and some problems of segregated layers, weak interfacial bonding, and low density and strength etc, can be solved. The effects of water cement ratio and fly ash proportion on the mobitity of the mixture and the strength of the concrete are analyzed.

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35

CARVALHO, C. H. R., and L. A. C. MOTTA. "Study about concrete with recycled expanded polystyrene." Revista IBRACON de Estruturas e Materiais 12, no. 6 (December 2019): 1390–407. http://dx.doi.org/10.1590/s1983-41952019000600010.

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Abstract This work studied the properties of lightweight concretes with addition of expanded polystyrene (EPS) for structural walls applications. EPS for being a material produced on a large scale and has low density, produces a large volume of waste. These residues are not reused, especially in Brazil. Given that, in order to perform a comparison of the performance of concrete with adding of EPS in pearls and recycled, it have been manufactured five concrete types, a control without addition of EPS and four other samples with two different percentages of EPS. The mechanical (compressive strength) and physical (density, voids content, absorption by immersion and capillarity) properties were evaluated, and tests were carried out to evaluate the thermal performance of the mixtures studied. The concretes with EPS presented compressive strength less than the reference concrete, however, the absorption for capillarity and thermal properties was better in concretes with EPS. It is concluded that it is feasible to replace the EPS in pearls by recycled EPS, due to the close results found.

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36

Zhukov, Aleksey, Vyacheslav Semenov, Ivan Gnip, and Saulus Vaitkus. "The investigation of expanded polystyrene creep behaviour." MATEC Web of Conferences 117 (2017): 00184. http://dx.doi.org/10.1051/matecconf/201711700184.

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37

Luo, Fu Sheng. "Surface Modification on Pre-Expanded Polystyrene Particles." Applied Mechanics and Materials 357-360 (August 2013): 1411–14. http://dx.doi.org/10.4028/www.scientific.net/amm.357-360.1411.

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The article by using the coating apparatus of fluidized bed, the surface coating method of the spherical particles of pre-expanded polystyrene (EPS), processing of EPS surface modified; different volatile solvents, as well as an acrylic resin, epoxy, modified polyurethane coating material selection, the EPS particle surface coating processing experiments. The test results show that after the modified material after foaming and mold filling repression through modified EPS material has a lot of improvement in its inter-particle adhesion, impact resistance and strength, the process can be EPS material of high value-added processing to provide a new way.

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38

ADACHI, Hiromasa, and Teruo HASEGAWA. "Dynamic Compression Modulus of Expanded Polystyrene Foams." KOBUNSHI RONBUNSHU 57, no. 11 (2000): 757–59. http://dx.doi.org/10.1295/koron.57.757.

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39

Feigenbaum, Alexandre, and Denise Scholler. "Expanded polystyrene: An experiment for undergraduate students." Journal of Chemical Education 64, no. 9 (September 1987): 810. http://dx.doi.org/10.1021/ed064p810.

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40

Rossi, Mario, Giovanni Camino, and MariaPaola Luda. "Characterisation of smoke in expanded polystyrene combustion." Polymer Degradation and Stability 74, no. 3 (January 2001): 507–12. http://dx.doi.org/10.1016/s0141-3910(01)00168-9.

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41

Padade, A. H., and J. N. Mandal. "Expanded Polystyrene-Based Geomaterial with Fly Ash." International Journal of Geomechanics 14, no. 6 (December 2014): 06014013. http://dx.doi.org/10.1061/(asce)gm.1943-5622.0000390.

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42

Bajdur, Wioletta, Justyna Pajączkowska, Beata Makarucha, Anna Sułkowska, and Wiesław W. Sułkowski. "Effective polyelectrolytes synthesised from expanded polystyrene wastes." European Polymer Journal 38, no. 2 (February 2002): 299–304. http://dx.doi.org/10.1016/s0014-3057(01)00191-4.

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43

Beju, Y. Z., and J. N. Mandal. "Expanded Polystyrene (EPS) Geofoam: Preliminary Characteristic Evaluation." Procedia Engineering 189 (2017): 239–46. http://dx.doi.org/10.1016/j.proeng.2017.05.038.

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44

Zitko, V. "Expanded polystyrene as a source of contaminants." Marine Pollution Bulletin 26, no. 10 (October 1993): 584–85. http://dx.doi.org/10.1016/0025-326x(93)90412-d.

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45

Galikhanov, M. F., M. A. Dymova, R. Ya Deberdeev, and A. A. Muslimova. "Investigating the Electret Properties of Expanded Polystyrene." International Polymer Science and Technology 39, no. 8 (August 2012): 33–35. http://dx.doi.org/10.1177/0307174x1203900807.

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46

Shin, C. "A new recycling method for expanded polystyrene." Packaging Technology and Science 18, no. 6 (2005): 331–35. http://dx.doi.org/10.1002/pts.707.

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47

Thompsett, D. J., A. Walker, R. J. Radley, and B. M. Grieveson. "Design and construction of expanded polystyrene embankments." Construction and Building Materials 9, no. 6 (December 1995): 403–11. http://dx.doi.org/10.1016/0950-0618(95)00069-0.

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48

Kannan, Pravin, Joseph J. Biernacki, and Donald P. Visco. "Fast pyrolysis kinetics of expanded polystyrene foam." AIChE Journal 56, no. 6 (November 17, 2009): 1569–77. http://dx.doi.org/10.1002/aic.12092.

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49

Šeputytė-Jucikė, Jurga, and Marijonas Sinica. "THE EFFECT OF EXPANDED GLASS AND POLYSTYRENE WASTE ON THE PROPERTIES OF LIGHTWEIGHT AGGREGATE CONCRETE." Engineering Structures and Technologies 8, no. 1 (April 17, 2016): 31–40. http://dx.doi.org/10.3846/2029882x.2016.1162671.

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The main objective of this study is to create a lightweight aggregate concrete (LWAC) with a low thermal conductivity coefficient using expanded glass (EG) aggregate, produced from waste glass or crushed expanded polystyrene waste, obtained by crushing waste packing tare of household appliances. Research related to the effects of the amount of Portland cement (PC) as well as EG aggregates and crushed expanded polystyrene waste on physical (density, thermal conductivity coefficient, water absorption and capillary coefficient) and mechanical (compressive strength) properties of LWAC samples are provided. Insulating LWAC based on a small amount of PC and lightweight EG aggregates and crushed expanded polystyrene waste, with especially low thermal conductivity coefficient values (from 0.070 to 0.098 W/ (m·K)) has been developed. A strong relationship between thermal conductivity coefficient and density of LWAC samples was obtained. The density of LWAC samples depending on the amount of PC ranged between 225 and 335 kg/m3. A partial replacement of EG aggregate by crushed expanded polystyrene waste, results in relative density decrease of LWAC samples. In LWAC samples the increased amount of PC results in increased compressive strength.

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Kulikov, Vitaliy Yu, Aristotel Z. Issagulov, Elena P. Shcherbakova, and Tatjana V. Kovaljva. "Study of the properties of polystyrene containing secondary granules of expanded polystyrene." Vestnik of Nosov Magnitogorsk State Technical University 15, no. 4 (2017): 40–46. http://dx.doi.org/10.18503/1995-2732-2017-15-4-40-46.

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