scholarly journals Insulation systems for buildings and structures based on expanded polyethylene

2018 ◽  
Vol 251 ◽  
pp. 01014 ◽  
Author(s):  
Vyacheslav Semenov ◽  
Sergey Kozlov ◽  
Alexey Zhukov ◽  
Karen Ter-Zakaryan ◽  
Ekaterina Zinovieva ◽  
...  
Keyword(s):  
Mineral Wool ◽  
Expanded Polystyrene ◽  
Insulation Material ◽  
Air Infiltration ◽  
Frame Buildings ◽  
Long Time ◽  
Insulation Systems ◽  
Lock Joint ◽  
Seamless Connection ◽  
Modern Technologies

Insulation systems for buildings and structures imply the use of efficient thermal insulation products based on mineral wool, expanded polystyrene, expanded polyurethane, etc. For a long time, products from non-cross-linked expanded polyethylene were used as insulation for pipelines, reflective insulation, protection against air infiltration, etc. Modern technologies and engineering solutions allowed widening the field of application of non-cross-linked expanded polyethylene (NXLPE) as a construction insulation material. In particular, we can consider a complex of insulation systems for walls, floors and a pitched roof, which allows to form a fully insulating shell of a low-rise building, e.g. a cottage. The novelty of the patented technology Tepofol® and that of the material concerned in comparison with the known solutions is the development of a rolled material based on NXLPE (20 to 150 mm thick) with a lock joint, as well as the technology of seamless connection of individual heat-insulating cloths. The rolls of NXLPE are mechanically fixed to the frame and connected with the lock. One of the advantages of expanded polyethylene, which only few insulating materials possess, is the possibility of forming seamless insulating shells. The article considers a number of insulation systems based on the use of products from expanded polyethylene. In particular, these are the systems of insulation of the walls of frame buildings, the insulation of floors, as well as the insulation of logistics facilities and hangars.

scholarly journals Increasing the Seismic Resistance of Wood-frame Buildings by Applying PU Foam as Thermal Insulation

2019 ◽  
Author(s):  
Wojciech Migda ◽  
Marcin Szczepański ◽  
Robert Jankowski
Keyword(s):  
Structural Damage ◽  
Residential Buildings ◽  
Substantial Reduction ◽  
Mineral Wool ◽  
Seismic Resistance ◽  
Insulation Material ◽  
Seismic Behaviour ◽  
Pu Foam ◽  
Frame Buildings ◽  
Wood Frame

Wood-frame buildings are very common in regions that are exposed to earthquakes. Most of residential buildings are constructed using this technology; therefore, the seismic resistance of them is really essential in order to prevent human losses and structural damage. The aim of the present article is to show the results of the detailed numerical FEM analysis focused on the seismic behaviour of the wood-frame house with different in-wall insulation materials. The results of the study clearly indicate that using polyurethane (PU) foam instead of mineral wool leads to the increase in the rigidity of the structure and, therefore, to the substantial reduction in the structural response under different seismic excitations. The results also show that, generally speaking, the level of reduction in the displacement response increases with the increase in the magnitude of the earthquake, which even furthermore benefits the application of PU foam as an insulation material. It has also been concluded that the method of using PU foam can be successfully applied not only in the newly constructed wood-frame houses but also in existing ones since replacing the mineral wool with PU foam is relatively easy and not so much expensive.

scholarly journals Optimization of technology of special-purpose mineral wool products

2021 ◽  
Vol 244 ◽  
pp. 04003
Author(s):  
Aleksey Zhukov ◽  
Igor Bessonov ◽  
Ekaterina Bobrova ◽  
Andrey Medvedev ◽  
Ekaterina Zinovieva
Keyword(s):  
Energy Efficient ◽  
Statistical Processing ◽  
Mineral Wool ◽  
Normal Operation ◽  
Insulation Material ◽  
Air Filtration ◽  
Construction Sites ◽  
Mathematical Planning ◽  
Insulation Systems ◽  
Stone Wool

Insulation systems must have a number of special properties when used on construction sites located in the zone of significant negative temperatures, wind load, and associated air filtration through building struc-tures, under the influence of the coastal environment that forms salts on tech-nical facilities associated with the production and transportation of petro-leum products. Firstly, high operational stability, including under the influ-ence of aggressive environments. Secondly, they must be non-flammable and have significant fire resistance limits. Thirdly, do not contain compo-nents that are toxic during normal operation or are released in the event of a fire. The analysis of possibilities has shown that products based on stone wool meet these requirements to the greatest extent as a thermal insulation material. The research presented in the article is based on a hypothesis about the use of products based on stone wool and epoxy binder on latent hardeners, which will allow us to obtain an energy-efficient material that fully meets the conditions of polar construction. The purpose of the research was to develop a method for selecting the parameters of manufacturing mineral wool products that affect the properties of mineral wool slabs to the greatest extent and to opti-mize the temperature of heat treatment of mineral wool carpet. Re-search methodology set out in the article is based on the method of mathematical planning of experiment and statistical processing of the results, followed by analytical optimization.

scholarly journals Environmental burdens of External Thermal Insulation Systems. Expanded Polystyrene vs. Mineral Wool: Case Study from Poland

2020 ◽  
Vol 12 (11) ◽  
pp. 4532 ◽  
Author(s):  
Jacek Michalak ◽  
Sebastian Czernik ◽  
Marta Marcinek ◽  
Bartosz Michałowski
Keyword(s):  
Thermal Insulation ◽  
Mineral Wool ◽  
Expanded Polystyrene ◽  
Environmental Indicators ◽  
The Sustainable Development ◽  
Manufacturing Plants ◽  
Insulation Systems ◽  
Negative Environmental Impact ◽  
The Impact

The external thermal insulation composite system (ETICS) improves the energy efficiency of buildings, and nowadays, this method is the most popular to insulate buildings in many European Union (EU) countries. The article presents the impact of producing ETICS with expanded polystyrene (EPS) or mineral wool (MW) on the natural environment using the life cycle assessment (LCA) method. The data used in the calculations, related to 2017 real production, were obtained from the externally verified inventory from five manufacturing plants located in different regions of Poland. The LCA of the examined products covered modules from A1 to A3 (cradle-to-gate), according to EN 15804 standard. The study determines and analyses the values of basic indicators related to environmental impacts and environmental aspects of resource use. It comprises indicators calculated for 1 m2 ETICS for five thicknesses of the mentioned thermal insulation materials. Results show that for all environmental indicators, MW systems are characterized by a more negative environmental impact than the equivalent systems with EPS. The study aims to highlight knowledge about ETICS sustainability. The data presented in work are essential for assessment in terms of the sustainable development of ETICS. Such an evaluation is not just a need for the future but a necessity for the present.

Effect of insulation core type on thermal conductivity of sandwich structure

2017 ◽  
Vol 52 (17) ◽  
pp. 2273-2280 ◽  
Author(s):  
Zheng Chen ◽  
Zhen Jia ◽  
Ning Yan
Keyword(s):  
Thermal Conductivity ◽  
Layer Thickness ◽  
Sandwich Structure ◽  
Core Layer ◽  
Element Model ◽  
Mineral Wool ◽  
Expanded Polystyrene ◽  
Insulation Material ◽  
Expanded Polystyrene Foam ◽  
Building Components

The influence of the layer thickness on the thermal conductivity of a sandwich structure containing an insulation material as the core layer was investigated by developing a corresponding finite element model simulating the structure. The insulation core studied included expanded polystyrene foam, polyurethane and mineral wool core. It was found that an increase in the ratio of core thickness to total surface layer thickness (shelling ratio) resulted in the decrease in the thermal conductivity of the sandwich structure. This change was significant when the shelling ratio was less than one. Regression analysis was conducted to describe the relationships among shelling ratio and thermal conductivities of the sandwich structure and each of its components. The evaluation of the thermal transmittance of the window system containing the sandwich structure used in window or other building components can be more accurate and simple.

scholarly journals Global Performance of Sustainable Thermal Insulating Systems with Cork for Building Facades

Buildings ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 83
Author(s):  
Sofia Malanho ◽  
Rosário Veiga ◽  
Catarina Brazão Farinha
Keyword(s):  
Performance Studies ◽  
Negative Impact ◽  
Mineral Wool ◽  
Expanded Polystyrene ◽  
Environmental Benefits ◽  
Sustainable Systems ◽  
Thermal Insulating ◽  
Building Facades ◽  
Global Performance ◽  
Insulation Systems

: Rehabilitation of facades may be carried out with the application of External Thermal Insulation Systems (ETICS). Their main contribution is the increase of the energy efficiency of buildings. In the literature, hygrothermal, impact and fire performance studies have been carried out on several systems with different insulation materials, such as expanded polystyrene, mineral wool and extruded polystyrene foam insulation. Due to the growing concern with the environment, systems are being developed with more sustainable and ecological materials, such as ICB (expanded cork). These type of boards are responsible for a negative impact in global warming potential, significantly improving the environmental benefits of their use. As these systems were recently introduced to the market, applications on site are very recent and their behaviour over time still unknown. In this research, the durability and global performance of more sustainable systems (with ICB) were analysed through an experimental campaign and compared with EPS (expanded polystyrene) systems. The results show that the systems with ICB obtained satisfactory global behaviour comparable with the EPS systems. The ICB sustainable systems analysed stood out in acoustic performance.

scholarly journals HEAT INSULATION-APPARATUS SYSTEMS OF HOUSEHOLD FACADE AS A FACTOR OF INCREASED FIRE HAZARD

Fire Safety ◽  
2018 ◽  
pp. 80-89
Author(s):  
R. Yakovchuk ◽  
A. Kuzyk ◽  
O. Miller ◽  
A. Lyn
Keyword(s):  
Thermal Insulation ◽  
Heat Insulation ◽  
Fire Hazard ◽  
Expanded Polystyrene ◽  
Design Solution ◽  
Insulation Material ◽  
Insulating Materials ◽  
Thermal Insulating ◽  
Number Of Factors ◽  
Insulation Systems

The paper analyzes the problems associated with the fire hazard of the application of thermal insulation and finishing systems of facades of buildings, which directly depends on the design solution of the thermal insulation system and the type of thermal insulation material. The generalized requirements for physical and technical indicators of the quality of heat-insulating materials; the possibility of applying facade heat insulation structures depending on their class, the height of the houses and the combustibility of the materials of the heat-insulating and finishing layers; fire-technical characteristics of expanded polystyrene are considered. The threats of fire spreading by thermal insulation systems of facades are analyzed and possible ways of its propagation between floors are considered. It is concluded that the use of combustible thermal insulating materials poses an increased danger to life and health of people during a fire. The problem of ensuring the fire safety of buildings, in which the insulation and finishing systems of exterior walls are used, depends on a number of factors and requires a more thorough study.

scholarly journals Influence of Rendering Type on the Environmental Characteristics of Expanded Polystyrene-Based External Thermal Insulation Composite System

Buildings ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 47 ◽  
Author(s):  
Bartosz Michałowski ◽  
Marta Marcinek ◽  
Justyna Tomaszewska ◽  
Sebastian Czernik ◽  
Michał Piasecki ◽  
...  
Keyword(s):  
Environmental Impact ◽  
Thermal Insulation ◽  
Raw Materials ◽  
Thermal Characteristics ◽  
Expanded Polystyrene ◽  
Insulation Material ◽  
Market Demand ◽  
Environmental Characteristic ◽  
Insulation Systems ◽  
Functional Components

External thermal insulation systems (ETICS) are relevant facade applications of functional components allowing to reduce energy consumption in buildings to fulfill the provisions of nearly Zero-Energy Buildings (nZEBs). ETICS systems generally are made of adhesives, thermal insulation material, renders with mesh reinforcement, primers, and finish coats. Their main parameters are thermal characteristics and durability, both determined by the specific composition of the systems. Growing concerns on the environment and depletion of natural resources drive the need for the determination of the environmental characteristic of ETICS due to its growing market demand. This analysis focuses on a life cycle assessment (LCA) of a commonly used EPS based ETICS system with four different renderings, produced in several locations. The scope of this study concerns raw materials extraction, transport, production, and energy provision up to the finished, packed, and ready-for-sale product at the factory gate. The authors compared the environmental impact allocated to the 1 m2 of the produced system by taking into account the thickness of EPS and within different environmental impact categories. The results of the current impacts were compared to those obtained five years earlier, considering the technological and environmental progress of the production process.

scholarly journals Mechanical Properties of Polyurethane Adhesive Bonds in a Mineral Wool-Based External Thermal Insulation Composite System for Timber Frame Buildings

Materials ◽  
2021 ◽  
Vol 14 (10) ◽  
pp. 2527
Author(s):  
Ewa Sudoł ◽  
Ewelina Kozikowska
Keyword(s):  
Mechanical Properties ◽  
Thermal Insulation ◽  
Mineral Wool ◽  
Expanded Polystyrene ◽  
Polyurethane Adhesive ◽  
Timber Frame ◽  
Frame Buildings ◽  
Polyurethane Adhesives ◽  
Influence Of Substrate ◽  
Adhesive Application

This paper aims to provide a preliminary assessment of polyurethane adhesive applicability as an alternative to conventional cement-based adhesives used to fix thermal insulation materials to substrates concerning mineral wool-based external thermal insulation composite systems. Currently, polyurethane adhesives are only used in expanded polystyrene-based ETICS. This study discusses the suitability of polyurethane adhesive for ETICS with lamella mineral-wool for timber frame buildings. Bond strength, shear strength and shear modulus tests were conducted. In addition, microstructure and apparent density were analysed. Mechanical properties were analysed in terms of the influence of substrate type and thermal and moisture conditions, taking into account solutions typical for sheathing on timber frame (oriented strand boards (OSB), fibre-reinforced gypsum boards (FGB) and cement-bonded particleboards (CPB)), as well as limit conditions for adhesive application. It was found that PU adhesive can achieve adhesion, both to MW and OSB, and FGB and CPB at ≥ 80 kPa, which is considered satisfactory for PU adhesives for EPS-based ETICS. Favourable shear properties were also obtained. There was no significant effect of sheathing type on the properties considered, but the influence of temperature and relative humidity, in which the bonds were made, was spotted. The results obtained can be considered promising in further assessing the usefulness of PU adhesives for MW-based ETICS.

scholarly journals Fire Behaviors of the Geomaterial-Based Composite Plaster Coated Building Thermal Isolation Plates

2018 ◽  
Vol 1 (1) ◽  
pp. 745-750
Author(s):  
Tamer Rızaoğlu ◽  
M. Ziya Karataş
Keyword(s):  
Mineral Wool ◽  
Expanded Polystyrene ◽  
Insulation Material ◽  
Fire Tests ◽  
Expanded Perlite ◽  
New Materials ◽  
Significant Progress ◽  
Thermal Isolation ◽  
New Material ◽  
Environmentally Sensitive

Abstract Thermal insulation in buildings has been a problem for mankind throughout history. New materials have always been used in this context, and every new material has negative aspects such as environmental, economic and engineering. Although the building exterior insulation materials produced in recent years have made significant progress in terms of thermal comfort, but those with superior properties in resistance to fire are very limited. In this study, considering the environmental sensitivity, the plasters produced from the sands of arenitized granite, micaschist, pumice and expanded perlite rocks and their combinations were applied on expanded polystyrene (EPS), extruded polystyrene (XPS) foams and mineral wool for investigating the fire behaviors of each material. As a result of fire tests, it was observed that the most positive values were gained from micaschist based external isolation board, whereas the board obtained from arenitized granite gave the most negative values. With the combination of natural and environmentally friendly materials such as micaschist, perlite and pumice, on a fire resistant insulation material such as mineral wool, a highly fire resistant, environmentally sensitive and economical insulation material can be produced.

Use of Foam Polystyrene Waste in the Conditions of a Reinforced Concrete Products Factory

2020 ◽  
pp. 49-52
Author(s):  
S.E. YANUTINA ◽  
Keyword(s):  
Reinforced Concrete ◽  
Precast Concrete ◽  
Expanded Polystyrene ◽  
Insulation Material ◽  
Design Strength ◽  
Foam Polystyrene ◽  
Secondary Use ◽  
Concrete Blocks ◽  
Polystyrene Waste ◽  
Factory Laboratory

The relevance of research in the factory laboratory of JSC «198 KZHI», which is part of the HC GVSU «Center», is dictated by the need to dispose of foam polystyrene waste that occurs in large quantities when producing the precast concrete. In the production of three-layer external wall panels, polystyrene heatinsulating plates of the PPS 17-R-A brand are used as an effective insulation material. The secondary use of PPS 17-R-A for its intended purpose, as a heater, is not possible. The volume of foam polystyrene produced varies from 25 to 45 m3 per month. Utilization (disposal) of foam polystyrene waste is an expensive undertaking. Its use as a filler in the production of expanded polystyrene blocks was tested in the factory’s laboratory to produce foam polystyrene concrete with specified physical and mechanical characteristics. The results of testing of expanded polystyrene concrete of classes B2.5 and B 7.5 are presented. It is shown that under the conditions of the reinforced concrete factory technology, the production of polystyrene concrete blocks is possible with the achievement of the design strength. The information presented in the article is aimed at motivating specialists who produce recast concrete to the possibility of using foam polystyrene waste for low-rise construction. Keywords: foam polystyrene, ecology, energy efficiency, foam polystyrene concrete, foam polystyrene heat insulation plates, precast concrete.

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