scholarly journals Experimental research of structural organization of heat-insulating structural building materials for energy efficient buildings

2019 ◽  
Vol 97 ◽  
pp. 02009
Author(s):  
Said Shaumarov ◽  
Anvar Adilkhodjaev ◽  
Valeriy Kondrazhenko
Keyword(s):  
Image Analysis ◽  
Fractal Dimension ◽  
Experimental Research ◽  
Concrete Structure ◽  
Energy Efficient ◽  
Structural Organization ◽  
Building Materials ◽  
Structure Estimation ◽  
Energy Efficient Buildings ◽  
Cellular Concrete

The article presents the results of research to determine the porosity of cellular concrete with different volume mass and strength by the method of “image analysis”. A photo-optical method of cellular concrete structure estimation is developed. The dependence of porosity and strength of the samples on the fractal dimension of the cellular concrete structure is obtained.

scholarly journals Analytical and Experimental Research of Structural Organization of Heat-Insulating Construction Materials

2019 ◽  
pp. 916-928
Author(s):  
Said S. Shaumarov ◽  
Anvar I. Adilhodjayev
Keyword(s):  
Fractal Dimension ◽  
Numerical Experiment ◽  
Porous Structure ◽  
Experimental Research ◽  
Structural Organization ◽  
Construction Materials ◽  
Relationship Of ◽  
The Relationship ◽  
Cellular Concrete

The article is devoted to the determination of the fractal dimension of the porous surface and further finding the relationship of the fractal dimension with the porosity of cellular concrete. A numerical experiment was carried out aimed at determining the fractal dimension of the structure of cellular concrete in order to clarify the relationship of the latter with its porous structure. An approach has been developed to assess the properties of cellular concrete based on the analysis of its image

Thermal Insulation Of The Foundation Walls Of Buildings And Calculation Of Its Thickness

2021 ◽  
Vol 03 (04) ◽  
pp. 70-78
Author(s):  
Tulakov Elmurad Salomovich ◽  
◽  
Matyokubov Bobur Pulatovich ◽  
Keyword(s):  
Surface Temperature ◽  
Thermal Insulation ◽  
Energy Efficient ◽  
Building Materials ◽  
The Body ◽  
Dew Point ◽  
Dew Point Temperature ◽  
Energy Efficient Buildings ◽  
Basement Walls ◽  
External Barrier

If the surface temperature of any building material drops sharply without changing the humidity and the surface temperature is lower than the dew point temperature, dew-like water droplets are formed on the surface of this material. This condition is called condensing humidity condition. Condensation moisture formed on the surfaces of building materials and external barriers is slowly absorbed into the body of building materials over time, increasing the relative humidity of this structure. Condensation moisture can be observed when the temperature of the surfaces of external barrier structures drops sharply. This condition can be observed everywhere where the basement is connected to the outer walls of the basement. The article deals with the issue of thermal insulation and calculation of basement walls of modern energy-efficient buildings, which are widely used in the country and abroad.

scholarly journals The Question of Modeling a Structure Structural Insulation Materials for Energy-Efficient Civil Buildings

2019 ◽  
Vol 8 (4) ◽  
pp. 7692-7694
Keyword(s):  
Mathematical Modeling ◽  
Thermal Insulation ◽  
Energy Efficient ◽  
Simulation Modeling ◽  
Building Materials ◽  
Theoretical Studies ◽  
Insulation Materials ◽  
Cellular Concrete

This article presents theoretical studies on the mathematical modeling of the structure of constructive thermal insulation building materials. The developed principle block is a diagram of the methodology of structural and simulation modeling of cellular concrete.

scholarly journals Towards Modern Technology and Traditional Form—Evolution of the Form of Energy-Efficient Houses in Poland over the Last Decades

Proceedings ◽  
2020 ◽  
Vol 51 (1) ◽  
pp. 30
Author(s):  
Jolanta Owerczuk
Keyword(s):  
Energy Saving ◽  
Energy Efficient ◽  
Building Materials ◽  
New Technologies ◽  
Modern Technology ◽  
Local Conditions ◽  
Traditional Form ◽  
Energy Efficient Buildings ◽  
Country Houses

The article is an attempt to capture the problem of changes occurring in the last dozen or so years in the architecture of energy-efficient houses in Europe, including Poland, in the light of economic and legal conditions. In the studies subordinated to the analysis of the literature, the focus was on those features of energy-efficient buildings that are derived from the logic of solutions of traditional country houses. The genesis of the form of the modern energy-saving house can be found in the principles of building and situating houses developed through the experience of previous generations. These principles took into account the specificity of the climate and existing local conditions. Modern energy-saving construction adds new technologies and new building materials to the traditional form.

scholarly journals The The Occurrence of Thermal Bridges in Hemp-Lime Construction Junctions

2019 ◽  
Author(s):  
Magdalena Grudzińska ◽  
Przemysław Brzyski
Keyword(s):  
Energy Efficient ◽  
Composite Structures ◽  
Building Materials ◽  
Thermal Transmittance ◽  
Timber Frame ◽  
Energy Efficient Buildings ◽  
Moisture Condensation ◽  
Thermal Bridges ◽  
Frame Construction ◽  
Insulating Properties

Thermal bridges increase heat losses in buildings and reduce the temperature of the internal envelope surface, causing moisture condensation and mould growth. This is an important issue for building materials based on organic components such as a hemp-lime composite, as they are particularly susceptible to biological degradation.The hemp-lime composite is used as a filling in timber frame construction. The increased cross-section of wooden elements together with the geometry change in the construction joints can form thermal bridges. The paper presents numerical analyses of temperature distribution in the area of construction elements connections, taking into account several variants of junctions: external walls, corners, and window placement in a wall. The thermal parameters of hemp-lime composites used in the analyses were obtained from the authors’ own research.Despite relatively good insulating properties, timber elements have a noticeable influence on the local increase of the heat transfer in hemp-lime composite structures, forming thermal bridges in the partitions themselves and in the construction nodes. However, the linear thermal transmittance coefficients in the presented joints were not very significant (in the range of 0.026 ÷ 0.092 W/(m·K) depending on the type of connection), proving the usefulness of this type of construction in energy-efficient buildings.

scholarly journals Recent update on the environmental impact of geopolymers

2016 ◽  
Vol 1 ◽  
pp. 17 ◽  
Author(s):  
Guillaume Habert ◽  
Claudiane Ouellet-Plamondon
Keyword(s):  
Energy Source ◽  
Life Cycle ◽  
Environmental Impact ◽  
Energy Efficient ◽  
Major Part ◽  
Building Materials ◽  
Research Trends ◽  
Energy Efficient Buildings ◽  
New Energy ◽  
Alkali Activated

The contribution of building materials’ production to environmental impacts becomes significant in the new energy efficient buildings that are currently built. Among those materials, cement represents a major part of the embodied carbon footprint of buildings. Development of alternatives to traditional Portland cement have emerged over the last decades; however, their environmental assessment over their life cycle have resulted in conflicting results, which give a confusing picture of the strategic path to be followed. This paper focuses on the alkali-activated cement and concrete and points out the variability linked with the choice of energy source for the production of the activators and precursors. A review of existing studies is then performed in order to highlight the main benefits of these alternative cements in terms of reduction of greenhouse gas emissions. Finally, the results presented here highlight further research trends for new cements and concrete.

scholarly journals Preparation and Study of Resin Translucent Concrete Products

2019 ◽  
Vol 2019 ◽  
pp. 1-12 ◽  
Author(s):  
Shen Juan ◽  
Zhou Zhi
Keyword(s):  
Mechanical Properties ◽  
Thermal Performance ◽  
Energy Efficient ◽  
Building Materials ◽  
Plain Concrete ◽  
Area Ratio ◽  
Green Energy ◽  
Light Transmittance ◽  
Energy Efficient Buildings ◽  
New Type

The development of new building materials is a crucial engine for promoting the development of green energy efficient buildings. In this paper, based on the excellent properties of light guiding of resin materials, a new type of resin translucent mortar-based concrete (RTMC) was researched; meanwhile, transmittance properties, mechanical properties, and thermal performance were studied, respectively. The results showed that the resin material possessed excellent light transmittance within the thickness of 100 mm, which can be as high as 93%. Moreover, when the area ratio was within 5%, the compressive strength of RTMC was close to that of plain concrete. Besides, RTMC had excellent thermal performance that the thermal conductivity of RTCM was 0.3815 w/(m·K), which was 60% lower than 0.89 w/(m·K) of plain concrete.

scholarly journals New Methodology for Designing External Fencing Structures Energy Efficient Civil Buildings

2021 ◽  
pp. 244-251
Author(s):  
Said S. Shaumarov
Keyword(s):  
Energy Efficient ◽  
Economic Importance ◽  
Theoretical Studies ◽  
Energy Efficient Buildings ◽  
Modern Period ◽  
Great Economic Importance ◽  
The Creation ◽  
Cellular Concrete

Based on the performed theoretical studies and calculations, the developed methodological foundations of designing the external enclosing structures of energy-efficient buildings based on cellular concrete with a given set of properties are presented, which are of great economic importance for construction oriented in the modern period towards the creation of energy-efficient civil facilities

scholarly journals Energy efficiency of buildings with phase-change materials

2012 ◽  
Vol 10 (3) ◽  
pp. 343-352 ◽  
Author(s):  
Predrag Lukic ◽  
Jasmina Tamburic ◽  
Dragoslav Stojic
Keyword(s):  
Phase Change ◽  
Energy Efficient ◽  
Building Materials ◽  
Phase Change Materials ◽  
Energy Savings ◽  
Thermal Environment ◽  
Latent Energy ◽  
Energy Efficient Buildings ◽  
Effective Form ◽  
Indoor Comfort

The construction of energy efficient buildings using innovative building materials such as phase change materials, in addition to improving indoor comfort, energy savings and costs, can be achieved by increasing their market value. Because of its ability to absorb and release energy at predictable temperatures, phase change materials are effective in controlling and maintaining the thermal environment in the building. The use of phase changing materials, materials stored latent energy storage is an effective form of heat.

Sign in / Sign up

Export Citation Format

Share Document