scholarly journals Sound-Absorbing Acoustic Concretes: A Review

2021 ◽  
Vol 13 (19) ◽  
pp. 10712 ◽  
Author(s):  
Mugahed Amran ◽  
Roman Fediuk ◽  
Gunasekaran Murali ◽  
Nikolai Vatin ◽  
Amin Al-Fakih
Keyword(s):  
Building Materials ◽  
Measurement Techniques ◽  
Construction Materials ◽  
Residential Building ◽  
Well Being ◽  
Acoustic Properties ◽  
Sound Insulation ◽  
Absorption Properties ◽  
Acoustic Performance ◽  
Cellular Concrete

Noise is continuously treated as an annoyance to humans and indeed commotion contamination shows up within the environment, causing inconvenience. This is likewise interesting to the engineering tactic that inclines to develop this noise proliferation. The basics of the sound-retaining proliferation, sound-absorbing properties, and its variables were rarely considered by previous researchers. Thus, the acoustic performance and sound insulation of constructions have gained significance over the last five decades due to the trend for accommodating inner-city flat and multi-story residential building condominiums. Due to this dilemma, the proliferation of high-driven entertaining schemes has engaged extraordinary demands on building for its acoustic performance. Yet, construction industries worldwide have started to mainly use sound-absorbing concrete to reduce the frequency of sounds in opened-and-closed areas and increase sound insulation. As reported, the concrete acoustic properties generally rely on its density, exhibiting that the lighter ones, such as cellular concrete, will absorb more sound than high-density concretes. However, this paper has an objective to afford a wide-ranging review of sound-absorbing acoustic concretes, including the measurement techniques and insulation characteristics of building materials and the sound absorption properties of construction materials. It is also intended to extensively review to provide insights into the possible use of a typical sound-absorbing acoustic concrete in today’s building industry to enhance housing occupants’ efficiency, comfort, well-being, and safety.

THEORETICAL APPROACH TO DETERMINATION OF ACOUSTIC PROPERTIES OF BUILDING MATERIALS

2017 ◽  
Vol 4 (1) ◽  
Author(s):  
Lukáš Fiala ◽  
Robert Černý
Keyword(s):  
Theoretical Approach ◽  
Urban Areas ◽  
Building Materials ◽  
Construction Materials ◽  
Well Being ◽  
Acoustic Properties ◽  
Solid Matrix ◽  
Sound Waves ◽  
Acoustic Load

The presence of high level of acoustic load especially in urban areas is becoming a serious problem in the present. In order to protect people against adverse effects of audio noise on health and personal well-being in buildings located in such areas, convenient construction materials with sophisticated geometric arrangement should be used. Bearing structures of new houses in the Czech Republic are widely made of different types of brick blocks. Such brick blocks consist of solid matrix and cavities designed in an optimized geometrical way in order to assure better thermal and hygric properties. Previous studies dealing both with acoustic properties in an empirical way and with the theoretical aspects of acoustic attenuation in building materials were not very numerous. Nevertheless, they gain constantly in importance with increasing acoustic load of the buildings surroundings. In this paper, a theoretical approach for the determination of acoustic properties, which is convenient for the description of sound waves propagation in building materials, is introduced.

Promoting building materials that have lower embodied carbon and energy in public procurements

2016 ◽  
Vol 27 (6) ◽  
pp. 722-739
Author(s):  
Kristel Rebane ◽  
Alvina Reihan
Keyword(s):  
Building Materials ◽  
Construction Materials ◽  
Residential Building ◽  
Embodied Energy ◽  
Sound Insulation ◽  
Content Type ◽  
Embodied Carbon ◽  
Efficient Alternative ◽  
Concrete Elements ◽  
Clear Information

Purpose The purpose of this paper is to propose a more carbon efficient alternative design using engineered timber components over reinforced concrete elements to a recently completed non-residential building located in Tallinn, Estonia. Also to promote building materials that have proved to have lower embodied carbon and energy. Design/methodology/approach The paper is based on data collected from the original project drawings, embodied carbon and embodied energy values of construction materials under comparison which are based on Inventory of Carbon & Energy database and on the research conducted in Finland that focussed on wooden building products. The engineered timber solution is designed in accordance with relevant regulations and laws including requirements for fire safety and sound insulation. Findings Buildings embodied carbon and embodied energy can be reduced by using proposed engineered timber materials. Research limitations/implications The outcome of current research is limited and applies only to the reference building and its proposed alternative, therefore it should be taken into consideration before any use. Still it provides clear information that using more carbon efficient materials can significantly reduce the carbon footprint of a building. Practical implications The outcome can be used as a tool promoting materials with a lower embodied carbon and energy in public procurements. Originality/value This study comparing buildings enclosure system alternatives as a whole by allowing to choose more environmentally friendly solution is the first in Estonia.

The New Rural Residential Building Materials of Low Carbon Mode of Thinking

2012 ◽  
Vol 443-444 ◽  
pp. 110-114
Author(s):  
Yuan Luo
Keyword(s):  
Real Estate ◽  
Rural Areas ◽  
Building Materials ◽  
Construction Materials ◽  
Residential Building ◽  
Actual Situation ◽  
Low Carbon ◽  
New Model ◽  
Construction Methods ◽  
Current Transition

In the current transition conditions, living in rural areas how to form a new model to address the issue of live and living is very necessary. Mountainous rural areas and more for less, construction methods and how to inject carbon idea behind such issues as the actual situation in rural areas of the construction line tools and real estate construction materials, forming a certain significance of the ideas and methods.

Using different waste as resilient layers for impact sound insulation improvement: New alternative to commercial layers?

2021 ◽  
pp. 014362442110537
Author(s):  
Francisco José García-Cobos ◽  
Rubén Maderuelo-Sanz
Keyword(s):  
Residential Building ◽  
Acoustic Properties ◽  
Sustainable Construction ◽  
Sound Insulation ◽  
Building Sector ◽  
Impact Noise ◽  
Cigarette Butts ◽  
Industrial Materials ◽  
Recycled Waste

In the residential building sector, the use of floating floors is a common practice which increasingly used to reduce vibrations and impact noise. These are usually made from industrial materials, although the emerging concern for sustainable construction is leading to the use of other materials from recycled waste. This article studies the performance of rubber, cork, and cigarette butts as a floating floor. For this purpose, their acoustic properties (ISO 9052-1 and 12,354-2 standards) are analyzed and compared with those of some commercial materials. The results obtained indicated that the performance of these eco-materials is equal or superior to that of commercially available materials.

scholarly journals Elaboration and Characterization of Composite Materials Based on Plaster-Gypsum and Mineral Additives for Energy Efficiency in Buildings

Proceedings ◽  
2019 ◽  
Vol 34 (1) ◽  
pp. 22
Author(s):  
Bouzit ◽  
Taha
Keyword(s):  
Thermal Conductivity ◽  
Energy Efficiency ◽  
Composite Materials ◽  
Building Material ◽  
Building Materials ◽  
Building Envelope ◽  
Acoustic Properties ◽  
Building Sector ◽  
Acoustic Performance ◽  
Mineral Additives

The building sector is one of the largest energy consumers in the world, prompting scientific researchers to find solutions to the problem. The choice of appropriate building materials presents a considerable challenge for improving the thermal comfort of buildings. In this scenario, plaster-based insulating materials have more and more interests and new applications, such as insulating coatings developing the building envelope. Several works are being done to improve energy efficiency in the building sector through the study of building materials with insulation quality and energy savings. In this work, new composite materials, plaster-gypsum with mineral additives are produced and evaluated experimentally to obtain low-cost materials with improved thermo-physical and acoustic properties. The resulting composites are intended for use in building walls. Plaster-gypsum is presented as a high-performance thermal material, and mineral additives are of great importance because of their nature and are environmentally friendly. Measurements of thermal properties are carried and measurements of acoustic properties. The results show that it is possible to improve the thermal and acoustic performance of building material by using plaster as a base material and by incorporating thermal insulators. The thermal conductivity of plaster alone is greater than that of plaster with mineral additives, offer interesting thermal and acoustic performance. By varying the additives, the thermal conductivity changes. Finally, comparing the results, plaster with mineral additives is considered the best building material in this study

scholarly journals Primary and Secondary Emissions of VOCs and PAHs in Indoor Air from a Waterproof Coal-Tar Membrane: Diagnosis and Remediation

2021 ◽  
Vol 18 (23) ◽  
pp. 12855
Author(s):  
Rafael Piñeiro ◽  
Eva Jimenez-Relinque ◽  
Roman Nevshupa ◽  
Marta Castellote
Keyword(s):  
Organic Compounds ◽  
Indoor Air ◽  
Building Materials ◽  
Coal Tar ◽  
Ventilation System ◽  
Construction Materials ◽  
Residential Building ◽  
Secondary Emission ◽  
Volatile Organic ◽  
Organic Halogens

Primary and secondary emissions of volatile organic compounds (VOCs) and polycyclic aromatic hydrocarbons (PAHs) from a waterproof coal tar membrane and their effect on the indoor air quality were investigated through a case study in a residential building situated in Madrid, Spain. The air contaminants were analyzed in situ using photoionization method and several samples of contaminants were taken using three sorbents: activated carbon, XAD2 and Tenax GR. It was found that various VOCs such as toluene, p- and m-Xylene, PAHs such as naphthalene, methyl-naphthalenes, acenaphthene, acenaphthylene, phenanthrene and fluorine, volatile organic halogens including chloroform and trichlorofluoromethane, and alkylbenzene (1,2,4-trimethylbenzene) were found at concentrations, which exceeded the limits established by international and national agencies (WHO, EPA, OSHA). Some of the above organic compounds were found also in the samples of construction and building materials, which were obtained at different heights and places. The analysis of possible sources of the contaminants pointed at the original coal-tar membrane, which was applied on the terrace to be waterproof. During a posterior reparation the membrane was coated with a new one that hindered dissipation of emitted contaminants. The contaminants leached out and were absorbed by construction materials down in the dwelling. These materials then acted as secondary emission sources. To remediate the emission problem as the contaminated materials were removed and then a ventilation system was installed to force the gasses being emitted from the rest of contaminated slab outside. Follow-up has validated the success of the remediation procedure.

Link between Acoustic and Hygrothermal Behavior of Hemp Shiv and Pith Composites

2022 ◽  
Author(s):  
Mohamed Said Abbas ◽  
Antonin Fabbri ◽  
Mohammed Yacine Ferroukhi ◽  
Philippe Glé ◽  
Emmanuel Gourdon ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Transmission Loss ◽  
Construction Materials ◽  
Acoustic Properties ◽  
Geometrical Parameters ◽  
Acoustic Performance ◽  
Hygrothermal Behavior ◽  
Interparticle Porosity ◽  
Hemp Shiv ◽  
Conductivity Models

Bio-based materials are an environmentally friendly alternative to classic construction materials, yet their generally low density can lead to poor acoustic properties. The acoustic performance of hemp shiv and sunflower pith composites is therefore analyzed using Kundt’s tube. Although the loose aggregates present an exceptional sound absorbing behavior, it can be notably worsened in the presence of certain binders. The Transmission Loss is nevertheless enhanced by the binders, although it does not exceed 20 dB in most cases. For both properties, the type of binder has been found to be the most influential parameter. Through the Kundt’s tube method, it is also possible to determine the geometrical parameters of the composites’ microstructure, which have been observed to be similar for materials presenting comparable hygrothermal properties and containing the same binder. In a previous work, an experimental correlation was found between the thermal conductivity and the interparticle porosity of the aforementioned composites, which is compared to theoretical thermal conductivity models from literature without finding any apparent correspondence.

Problems in the Designing of Acoustic Properties of Musical Rehearsals

2016 ◽  
Vol 861 ◽  
pp. 519-526
Author(s):  
Dušan Katunský ◽  
Jana Katunská ◽  
Iveta Bullová ◽  
Richard Germánus
Keyword(s):  
Noise Pollution ◽  
Acoustic Properties ◽  
Room Acoustics ◽  
Sound Insulation ◽  
Building Structures ◽  
Internal Environment ◽  
Reverberation Time ◽  
Acoustic Performance ◽  
Methods Of Calculation ◽  
Building Acoustics

Content of the post is to describe the creation of building structures, typology, internal environment, and internal wall coverings music rehearsal for optimal acoustic performance. One of the aspects of its internal environment is reverberation time. For this variable there are several methods of calculation. Article gives an indication of how the music was the laboratory building in the center of the music created and what problems the authors in its proposal met. Article contents and solving spatial and building acoustics model music musical rehearsal building downtown. Calculation fully respects Slovak standards valid for the design of room acoustics, as well as hygiene regulations on noise pollution. Acoustically treated room should serve as a laboratory for musical performance. If the building is more proof is needed to solve the sound insulation (building acoustics) that these areas do not interfere with each other. In addressing acoustics of testing can’t talk about bad or good acoustics, but rather on the season and out of corresponding with room acoustics, respectively, with activities in it.

ECOLOGY IN MULTI-STORY RESIDENTIAL BUILDINGS-INTERDEPENDENCY BETWEEN ECOLOGY AND COSTS OF BUILDING MATERIALS

2019 ◽  
Vol 6 (1) ◽  
Author(s):  
Daniela Koppelhuber ◽  
Johannes Wall
Keyword(s):  
Building Materials ◽  
Material Selection ◽  
Residential Buildings ◽  
Ecological Impact ◽  
Construction Materials ◽  
Residential Building ◽  
Ecological Impacts ◽  
Assessment Tools ◽  
Construction Costs

More than 95% of multi-story residential buildings in Austria are currently predominantly constructed with conventional mineral construction materials. This fact combined with the increasing demands for a healthy residential living atmosphere demonstrates the great potential for using ecological materials. Life cycle assessments provide information on the ecological performance of buildings, but the corresponding economical aspects are not considered. Nevertheless, the economic aspects of a certain draft are important to clients and designers. Therefore, simplified assessment-tools are needed that take into account the ecological impact as well as the building costs. This paper presents the results of an investigation supplemented by a case study of a multistory residential building, which was finished 2016 in Austria, illustrating the differences between the state-of-the-art material selection and ecologically optimized alternatives. The ecological impacts and the costs for the selected building-system were determined based on the case study. Subsequently, ecological optimization potentials were identified according to the environmental indicator OI3. Finally, the effects on component and construction costs were evaluated. The steps of this simplified process reveal the interdependency between ecological aspects and the costs of materials. This procedure represents a decision-making tool that can be used by clients as well as designers. The results of this research emphasize the large environmental impact improvements with little expenses when implementing sustainability in multi-story residential buildings as a crucial part of a green design.

EXPERIMENTAL DETERMINATION OF ACOUSTIC BEHAVIOR OF BUILDING MATERIALS BY MEANS OF ACCELEROMETERIC MEASUREMENTS

2020 ◽  
Vol 7 (1) ◽  
Author(s):  
Lukáš Fiala ◽  
Petr Konrád ◽  
Robert Černý
Keyword(s):  
Experimental Determination ◽  
Urban Areas ◽  
Building Materials ◽  
Acoustic Properties ◽  
Traffic Load ◽  
Acoustic Behavior ◽  
Frequency Range ◽  
Acoustic Performance ◽  
Acoustic Load

In Central Europe, brick blocks with incorporated system of voids ensuring good thermal properties are widely used in the building industry. In the present, increasingly higher acoustic load gains on importance especially in the surroundings of places with high traffic load, places close to the airports or in urban areas. This fact should be taken into consideration in the design of constructions in order to ensure their good acoustic performance. The very first step of such design lies in the experimental determination of acoustic properties of the reference construction elements which are, if necessary, subsequently optimized by adjustment of the voids volume and geometry or filling of the voids by various bulk fillers ensuring a higher level of scattering of the propagating acoustic signal. In this paper, steel prism and brick block were subjected to measurements by accelerometers in the frequency range 1 – 10 kHz in order to compare acoustic behavior of materials with a significantly different structure. Finally, frequency-dependent displacements in accelerometers position,

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