scholarly journals USING ADOBE (CLAY SOIL) MIXED WITH QUARTZ (SHARP SAND) TO DETERMINE THE THERMAL COMFORT OF RESIDENTIAL BUILDING IN NORTH-MUBI L. G, ADAMAWA STATE, NIGERIA

2019 ◽  
Vol 7 (3) ◽  
pp. 274-281
Author(s):  
S. K Singh ◽  
H. P Wante ◽  
S. M Ngaram
Keyword(s):  
Thermal Conductivity ◽  
Building Materials ◽  
Residential Buildings ◽  
Residential Building ◽  
Energy Materials ◽  
Need For Power ◽  
Hot Arid Climate ◽  
Materials Used ◽  
Made In ◽  
Thermal Conductivities

The adobe structure is constructed by using low energy materials like adobe soil and sand etc. Adobe and cob are terms often used to describe sun dried clay materials. Adobe is a Spanish word derived from the Arabic atob, which literally means sun dried bricks.This paper investigated the thermal conductivity of Adobe mixed with Quartz in view of their availability usage as building materials. The thermal conductivities of disc made from Adobe-Quartz chippings were determined, the values obtained were between 0.57Wm-1k-1 and 0.91Wm-1k-1, and these values could be used to identify Adobe-Quartz as one of the engineering materials used in building construction, adopted to reduce the temperature of buildings without the need for power consumption. Consequently, the aim of this study is to test the usefulness of applying selected Adobe-Quartz to improve thermal performance and to reduce energy consumption of residential buildings in hot arid climate setting, Mubi, Adamawa State, Nigeria. Energy reduction was achieved by making the Adobe-Quartz into bricks used as aggregates in walls. Adobe-Quartz was made in disc form of the same thickness and diameter, by proportions of Adobe to Quartz (90:10, 85:15, 80:20), i.e. 10 samples for each ratio. The average values of the thermal conductivities were between 0.07Wm-1k-1 and 0.93Wm-1k-1, the least thermal conductivity value was 0.57Wm-1k-1 for the ratio of (90:10). MATLAB 7.0 and EXCEL software were used in the various computations. An average correlation coefficient, R2 of 0.75 was existed between Adobe-Quartz ratios to thermal conductivities.

Experimental Study on the Thermal Conductivity of Thermal Insulation Materials Used in Residential Buildings

2014 ◽  
Vol 1025-1026 ◽  
pp. 535-538
Author(s):  
Young Sun Jeong
Keyword(s):  
Thermal Conductivity ◽  
Thermal Insulation ◽  
Building Materials ◽  
Residential Buildings ◽  
Building Envelope ◽  
Expanded Polystyrene ◽  
Exterior Wall ◽  
Insulation Materials ◽  
Design Documents ◽  
Materials Used

The most basic way to keep comfortable indoor environments for a building’s occupants and save energy for space heating and cooling in residential buildings is to insulate the building envelope. Among the building materials to be used, thermal insulation materials primarily influence thermal performance. In particular, the type, thermal conductivity, density, and thickness of heat insulator, are important factors influencing thermal insulation performance. We investigate the design status of residential buildings which were designed in accordance with the building code of Korea and selected the type of thermal insulation materials applied to the walls of buildings. The present study aims at measuring the thermal conductivity of thermal insulation materials used for building walls of residential buildings. In this study, after collecting the design documents of 129 residential buildings, we investigated the type and thickness of insulation materials on the exterior wall specified in the design documents. As the thermal insulation materials, extruded polystyrene (XPS) board and expanded polystyrene(EPS) board are used the most widely in Korea when designing residential buildings. The thickness of thermal insulation materials applied to the exterior wall was 70mm, most frequently applied to the design. We measured the thermal conductivity and the density of XPS board and EPS board. When the density of XPS and EPS was 30~35 kg/㎥, the thermal conductivity of XPS was 0.0292 W/mK and it of EPS was 0.0316 W/mK.

scholarly journals DETERMINATION OF THERMAL CONDUCTIVITY FOR ADOBE (CLAY SOIL) MIXED WITH DIFFERENT PROPORTIONS OF QUARTZ (SHARP SAND)

2019 ◽  
Vol 7 (3) ◽  
pp. 335-345
Author(s):  
S. K Singh ◽  
Ngaram S. M. ◽  
Wante H. P.
Keyword(s):  
Thermal Conductivity ◽  
Correlation Coefficient ◽  
Building Materials ◽  
Clay Soil ◽  
Building Construction ◽  
Average Correlation ◽  
Thermal Insulator ◽  
Materials Used ◽  
Thermal Conductivities

This research investigated the thermal conductivity of Adobe mixed with Quartz in view of their availability usage as building materials. The thermal conductivities of disc made from Adobe-Quartz chippings were determined. The values of the thermal conductivities obtained were between 0.6Wm-1k-1and 0.9Wm-1k-1, these values could be used to identify Adobe/Quartz as one of the engineering materials used in building construction. Adobe/Quartz was prepared in discs form of the same diameters and thicknesses and was also compressed under the same pressure of 15 atmospheres (100: 0, 95: 5and 80: 20). The average values of the thermal conductivities were between 0.07Wm-1Ҡ-1 and 0.93Wm-1Ҡ-1, for sample contained the proportion of (80:20) and the sample of ratio (95:5). MATLAB 7.0 and EXCEL software were used in the various computations, especially in determining dT/dt, Root mean square error (RMSE), Curve fittings parameter and the correlation coefficient, R2. An average correlation coefficient of 0.78 was existed between Adobe-Quartz ratio and thermal conductivity. The equation, y = -0.11x2 + 0.01x + 1.03 is the general equation that can be used for the prediction of average thermal conductivity at various ratios. Where y is the average thermal conductivity and x here signifies the ratios. This also indicates that compacted Adobe-Quartz of low density will be a suitable thermal insulator when used as aggregates in walls.

scholarly journals Testing a Gypsum Composite Based on Raw Gypsum with a Direct Admixture of Paraffin and Polymer to Improve Thermal Properties

Materials ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3241
Author(s):  
Krzysztof Powała ◽  
Andrzej Obraniak ◽  
Dariusz Heim
Keyword(s):  
Thermal Conductivity ◽  
Heat Capacity ◽  
Thermal Properties ◽  
Phase Change ◽  
Large Scale ◽  
Building Materials ◽  
Residential Buildings ◽  
Energy Performance ◽  
Polymer Content ◽  
Volumetric Heat Capacity

The implemented new legal regulations regarding thermal comfort, the energy performance of residential buildings, and proecological requirements require the design of new building materials, the use of which will improve the thermal efficiency of newly built and renovated buildings. Therefore, many companies producing building materials strive to improve the properties of their products by reducing the weight of the materials, increasing their mechanical properties, and improving their insulating properties. Currently, there are solutions in phase-change materials (PCM) production technology, such as microencapsulation, but its application on a large scale is extremely costly. This paper presents a solution to the abovementioned problem through the creation and testing of a composite, i.e., a new mixture of gypsum, paraffin, and polymer, which can be used in the production of plasterboard. The presented solution uses a material (PCM) which improves the thermal properties of the composite by taking advantage of the phase-change phenomenon. The study analyzes the influence of polymer content in the total mass of a composite in relation to its thermal conductivity, volumetric heat capacity, and diffusivity. Based on the results contained in this article, the best solution appears to be a mixture with 0.1% polymer content. It is definitely visible in the tests which use drying, hardening time, and paraffin absorption. It differs slightly from the best result in the thermal conductivity test, while it is comparable in terms of volumetric heat capacity and differs slightly from the best result in the thermal diffusivity test.

scholarly journals Comparison of the thermal performance between conventional and cob building

2019 ◽  
Vol 111 ◽  
pp. 03003
Author(s):  
Kaoutar Zeghari ◽  
Hasna Louahlia ◽  
Malo Leguern ◽  
Mohamed Boutouil ◽  
Hamid Gualous ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Thermal Behaviour ◽  
Calculation Method ◽  
Building Materials ◽  
Residential Building ◽  
Local Heat ◽  
Energy Performance ◽  
Stationary Regime ◽  
Thermal Regulation ◽  
Climate Data

The appliance of sustainable development approach in building has urged construction industry to adopt proper measurements to protect environment and reduce residential building energy consumption and CO2 emissions. Thus, an increasing interest in alternative building materials has developed including the use of bio-based materials such as cob which is studied in this paper. In the previous work, many experimental and numerical studies have been carried out to characterize thermal behaviour of earth buildings, reduce its thermal conductivity and water content. In this paper, an experimental study is carried out to determine the thermal properties and energy performance of cob building. Cob samples within different soil and fiber contents are studied using an experimental set up instrumented with flux meters and micro-thermocouples in order to evaluate the local heat flux and thermal conductivity during stationary regime. The results are analysed and compared to deduce the performant mixes in terms of thermal behaviour while respecting the French thermal regulation. A static thermal simulation based on RT 2012 calculation method (the official French calculation method for the energy performance of new residential and commercial buildings according to France thermal regulation) is used to compare energy performance between conventional and cob building using the French climate data base .

scholarly journals MANAGEMENT OF BIO TECHNOLOGIES FOR WINE TOURISM

2018 ◽  
pp. 252-254
Author(s):  
DAVID LOLUA ◽  
MANANA ALADASHVILI
Keyword(s):  
Building Materials ◽  
Physiological Data ◽  
Simple Type ◽  
Wine Quality ◽  
Renewable Materials ◽  
Wine Tourism ◽  
Start Up ◽  
Materials Used ◽  
Modern Technologies ◽  
Made In

Offering of new ecologically clean thermodynamic buildings (thermos) for the fresh start-up wine producers is highly relevant in the development of wine quality and wine tourism. Hereby we are presenting alternatives, traditional and modern technologies and building materials that can be applied in wine tourism – these are the houses made of renewable non-traditional materials (nails, clay). They are compared with materials that are used in the construction of tourist infrastructures today. We have studied ecologically clean, harmless, cheap, energy efficient, economically efficient products - taking into consideration their sustainability, comfort, physical data and energy efficiency. Eco-homes, which can be used in wine tourism, are also attractive due to the fact that the thermal physiological data of renewable materials used in eco-shops (reduction of energy losses) make daily costs cheaper. Construction of such ecosystems will help the creation of a road network for camps and mortar network in Georgia, where wine tasting would be possible. Also, by using the panels, it would be possible to arrange a simple type of portable tents and bungalows according to seasons. All this will improve servicing in wine tourism. In the regions rich in wine traditions and vine culture, such as Kakheti – it is important to focus on the healing properties of Georgian wines in the process of wine tourism development, wines which will be made in the ecologically safe environment that will help attracting more tourists, development of Georgian winemaking and viticulture and stimulation of internal tourism as well as creation of jobs in the region, popularization of healing tourism and touristic image of the country.

scholarly journals BUILDING MATERIALS AND TECHNOLOGIES OF MODERN HOUSING: ARCHITECTURAL AND ENVIRONMENTAL ASPECTS

2020 ◽  
Vol 2 (4) ◽  
pp. 84-88 ◽  
Author(s):  
O. Subbotin
Keyword(s):  
Material Culture ◽  
Building Materials ◽  
Residential Buildings ◽  
Residential Building ◽  
Environmental Safety ◽  
Environmental Aspects ◽  
Conceptual Approach ◽  
Modern Material ◽  
Innovative Technologies ◽  
Modern Building

the questions of architectural and environmental solutions in the field of design and construction of low-rise residential buildings, including the distinctive properties of building materials due to the conditions of modern material culture, aesthetic features of the external and internal appearance of these buildings are considered. It is noted that the conceptual approach to the choice of technologies in the construction of these objects helps to determine the necessary organization and structure of work, as well as additional artistic methods of architectural expression. It is also indicated that along with the architectural expressiveness one of the main requirements for the comfort of living in a residential building becomes environmental safety. Considerable attention is paid to modern building materials and innovative technologies that form new creative challenges facing architects.

scholarly journals Material Ramah Lingkungan untuk Interior Rumah Tinggal

Humaniora ◽  
2011 ◽  
Vol 2 (1) ◽  
pp. 704 ◽  
Author(s):  
Dila Hendrassukma
Keyword(s):  
Natural Resources ◽  
Building Materials ◽  
Ozone Layer ◽  
Embodied Energy ◽  
Energy Materials ◽  
The Earth ◽  
Alternative Material ◽  
Materials Used ◽  
The Right

Housing is one of the biggest contributors in polluting the ozone layer and consuming the natural resources in making one. Home interior takes part in the over-produced material used for covering the interior elements, such as floor, wall, ceiling, and furniture. The article conducting is to study the green aspect of building materials to find alternative material to beautify the house that is not harming the earth. The result is options of eco material to be used in the making of greener home interior. It is materials that can be renewed, recycled, and low in embodied energy. Materials used in home interior have impact to the natures. Thus, awareness in choosing the right material to decorate the house is very important. 

Analysis on the Development of Residential Building Energy Conservation

2014 ◽  
Vol 533 ◽  
pp. 135-139
Author(s):  
Jia Hui Huang
Keyword(s):  
Energy Conservation ◽  
Energy Saving ◽  
Building Materials ◽  
Residential Buildings ◽  
New Technology ◽  
Residential Building ◽  
Building Energy ◽  
Building Energy Conservation ◽  
New Energy ◽  
Depth Study

Building Energy Conservation, especially the research about residential building energy in face of the worldwide energy crisis is particularly urgent. At present, various countries have an in-depth study of the residential building energy to explore different methods, new building materials, and new technology(such as new thermal windows and doors), as well as the use of new energy has been put more attention to in energy conservation field. Comparing the residential buildings between domestic and overseas countries’ progress about related technologies, we could find some evolution and look to the prospects for the future in energy-saving field. We took a domestic project that used energy-saving technology as a practical example, and then made a simple overview of the current energy situation in China so as to get a glimpse of the development about residential building energy-saving. Finally, the article provided some comments about this topic in sustainable view.

scholarly journals Thermal and Mechanical Studies of Perlite Concrete Casing for Chimneys in Residential Buildings

Materials ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 2011
Author(s):  
Krzysztof Drozdzol
Keyword(s):  
Fire Safety ◽  
Building Materials ◽  
Residential Buildings ◽  
Concrete Block ◽  
Test Results ◽  
Safety Level ◽  
Current Trends ◽  
Concrete Blocks ◽  
High Insulation ◽  
Materials Used

Chimneys are structures designed to convey exhaust gases from heating devices to the outside of buildings. The materials from which they are made have a great impact on their fire safety, as well as on the safety of the whole building. As current trends in the construction industry are moving towards improving the environmental impact and fire safety, changes to building materials are constantly being introduced. This also applies to the development of chimney technology, as there is still a recognised need for new solutions when it comes to materials used in the production of chimney systems. This article presents the findings of tests carried out on a chimney made from innovative perlite concrete blocks. Four different perlite concrete blocks that differed in bulk densities were analysed. The obtained results were then compared with widely used leca (lightweight expanded clay aggregate) concrete blocks. The test results confirmed high insulation properties of the perlite concrete block, from which the innovative chimney casing was made. The fire safety level was maintained even in high temperatures that occur during soot fire (1000 °C). These properties were retained despite there being no additional insulation of the flue duct. Even though the thermal load decreased the compressive strength of the chimney blocks, they still displayed sufficient average strength of 4.03 MPa. Additionally, the test results confirmed the possibility of recovering heat from the chimney with the efficiency of 23–30%, which constitutes a considerable increase compared to chimneys made from leca concrete blocks.

scholarly journals Impact of reinforcement on shrinkage in the concrete floors of a residential building

2020 ◽  
Vol 27 (1) ◽  
pp. 317-324
Author(s):  
Wioletta Raczkiewicz ◽  
Artur Wójcicki
Keyword(s):  
Environmental Conditions ◽  
Residential Building ◽  
Fibre Reinforced Concrete ◽  
Polypropylene Fibres ◽  
Strain Measurements ◽  
Floor Layer ◽  
Materials Used ◽  
The Impact ◽  
Made In ◽  
Structural Layer

AbstractThe type of floor in a building object results from the serviceability requirements, technical possibilities, and costs of its implementation. Concrete screeds constituting the structural layer of the floor can be made without reinforcement, with dispersed reinforcement, or reinforced with meshes of various materials. Due to the large surface dimensions, concrete screeds are susceptible to scratches as a result of occurring strains, service loads and unevenness of the floor. There are detailed recommendations on how to make floors, and on the materials used. However, the conditions in which floors are made often differ from those recommended. The article presents the results of measured strains on the surfaces of three screeds constituting the floor layer in a residential building. The screeds, which were made in identical environmental conditions, differed in the type of reinforcement used: steel mesh, dispersed polypropylene fibres, fibreglass mesh. In addition, strain measurements were carried out on concrete and fibre-reinforced concrete specimens made of the mix used to make the screeds. The results allowed the assessment of the effectiveness of the reinforcement used, the impact of environmental conditions on the values, and the analysis of differences in the course of strains in real elements and the specimens.

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