Characteristics of expanded polystyrene (EPS) and its impact on mechanical and thermal performance of insulated concrete form (ICF) system

Solomon, A. Arun; Hemalatha, G.

doi:10.1016/j.istruc.2019.10.019

Cited by 35 publications

(17 citation statements)

References 21 publications

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“…The cement polystyrene shell mold (CPSM) grid concrete wall is a new type of wall that integrates thermal insulation, energy saving, fire resistance, lightweight, load bearing, sound insulation, environmental protection and convenient construction [ 1 , 2 , 3 , 4 ], consistent with the policy of reforming wall materials in China [ 2 ]. The wall is gradually used in low- and multi-story buildings.…”

Section: Introductionmentioning

confidence: 99%

Seismic Response of Star-Type Grid Concrete Wall Structure by Numerical Modeling

et al. 2022

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Cement polystyrene shell mold (CPSM) grid concrete walls have been widely applied in the construction of low and mid-rise buildings with higher load-bearing and insulation properties. A star-type grid concrete wall was constructed based on the infill wall simplified to an equivalent diagonal bracing model. To investigate the seismic responses and behavior of a star-type grid concrete wall structure, an overall time-history numerical simulation was carried out in this paper. Typical results, including acceleration, deformation, hysteresis curve and failure pattern of this novel construction system, were interpreted. Results indicate that the star-type grid concrete wall structure has satisfactory seismic performance, including energy dissipation capacity. The structure has higher lateral stiffness and can work in an elastic state under major earthquakes. Accordingly, it is more sensitive to near-fault ground motion with higher frequency components. Meanwhile, the structural inter-story drift angle is less than the limit value of lighter damage when subjected to a super-major earthquake, and the structure presents shear deformation. The openings significantly affect the failure mode, the star-type grid concrete wall with a window (a small aspect ratio less than 1.11) conforms to shear failure, and the wall with a door (aspect ratio of 2.5) conforms to bending-shear failure. The diagonal bracing can distribute the stress in the wall, especially the concrete lattice beam, and effectively resist the lateral forces via the concrete lattice column, improving the ductility and integrity of the structural system.

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Section: Introductionmentioning

confidence: 99%

Seismic Response of Star-Type Grid Concrete Wall Structure by Numerical Modeling

et al. 2022

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“…16–18 Finally, in terms of energy efficiency, there are a few studies that evaluated both system’s thermal performance, 19 , 20 due to the fact that most studies of both systems focused on structural strength, durability and noise attenuation. 21–24…”

Section: Introductionmentioning

confidence: 99%

“…[16][17][18] Finally, in terms of energy efficiency, there are a few studies that evaluated both system's thermal performance, 19,20 due to the fact that most studies of both systems focused on structural strength, durability and noise attenuation. [21][22][23][24] Therefore, the objective of this study was to promote a discussion of thermal comfort and energy efficiency focusing on parametric analysis of the SCIP and ICF wall systems adoption for social housing in Brazil. Most of the thermal-energy performance studies of residential buildings in Brazil take into account only the cold climate, [25][26][27][28][29][30] which is a contrast, as the Brazilian territory is mostly composed of hot climates.…”

Section: Introductionmentioning

confidence: 99%

The impact of climate change on the thermal-energy performance of the SCIP and ICF wall systems for social housing in Brazil

Cruz

Cunha

2021

Indoor and Built Environment

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The social housing sector is playing an important role in Brazil, due to the necessity of its expansion. Currently, many residential projects perform poorly in terms of energy efficiency and thermal comfort. In addition, the impact of climate change on energy consumption may aggravate the energy scenario, increasing the dependence on the heating, ventilation and air conditioning system. In parallel to this, there is a growing adoption of the Structural Concrete Insulated Panels (SCIP) and insulated concrete form (ICF) in the Brazilian construction industry, due to their advantages in reducing construction time, and cost. Therefore, this study provides a discussion on thermal-energy performance focusing on parametric analysis of the SCIP and ICF wall systems adoption for social housing in Brazil. Due to the fact that building performance is heavily affected by weather conditions, this study evaluated the computer simulation of the thermal-energy performance of SCIP and ICF wall systems for hot climates while addressing the impacts of climate change. The city of Rio de Janeiro, characterized by the tropical climate was selected, and the Climate Change World Weather File Generator (CCWorldWeatherGen) tool was used to produce weather data for future climate scenarios, such as 2020, 2050 and 2080.

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“…Therefore, it is important to design proper rock fall barriers considering the site characteristics. As a significant disadvantage, concrete materials have relatively low impact strengths resulting from their brittle material properties [4][5][6]. Because of having poor impact energy absorption capacities, concrete barrier bodies can severely fail as basically shown in Figure 2.…”

Section: Introductionmentioning

confidence: 99%

Use of Polymeric Energy Absorption Liners to Improve the Concrete Rock Fall Barriers

Komurlu

2021

GSE

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In this study, usability of polymer foam coatings on impact surfaces of concrete rock fall barriers to increase the energy absorption capacity performances was investigated with a series of experimental studies. For this purpose, impact tests were carried out on different concrete block samples within the laboratory tests. According to the results, it was determined that the displacement values of the barrier blocks due to the impac t effect can be significantly reduced by using polymer energy absorption liners. Additionally, cracks and failures of the concrete block bodies resulting from high impact energies can be prevented by the polymer energy absorption liners. It was assessed that a polyurethane based thermoset foam coating with a density of 60 kg/m3 can economically and remarkably improve the concrete barriers against impact loads.

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Characteristics of expanded polystyrene (EPS) and its impact on mechanical and thermal performance of insulated concrete form (ICF) system

Cited by 35 publications

References 21 publications

Seismic Response of Star-Type Grid Concrete Wall Structure by Numerical Modeling

Seismic Response of Star-Type Grid Concrete Wall Structure by Numerical Modeling

The impact of climate change on the thermal-energy performance of the SCIP and ICF wall systems for social housing in Brazil

Use of Polymeric Energy Absorption Liners to Improve the Concrete Rock Fall Barriers

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