Review on thermal insulation performance in various type of concrete

Shahedan, Noor Fifinatasha; Mahmed, Norsuria; Kusbiantoro, Andri; Binhussain, Mohammed; Zailan, Siti Norsaffirah

doi:10.1063/1.4981868

Cited by 15 publications

(8 citation statements)

References 8 publications

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“…The material used for the purpose of the study was received from Omega Minerals, Germany. The concrete mix formulas used the aggregate with the grain diameter 0.5 mm and bulk density 0.8 g/cm 3 .…”

Section: Omega-spheresmentioning

confidence: 99%

“…Waste aggregate can be used as an alternative material to produce lightweight concrete with low environmental impact [1,2]. In order to meet the existing numerous requirements, the manufacturers of building materials have been constantly modifying the composition of concrete mix for obtaining the best possible parameters [3]. The question remains open whether such improvements might be converted into real benefits.…”

Section: Introductionmentioning

confidence: 99%

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The Study on Possible Applications of Lightweight Concrete Based on Waste Aggregate in Terms of Compressive Strength and Thermal Insulation Properties

Smoczkiewicz-Wojciechowska¹,

Sybis²,

Mądrawski³

et al. 2022

Pol. J. Environ. Stud.

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The leading theme of the paper was to study, how the use of lightweight concrete based on waste aggregates, characterized by significant mechanical strength and increased thermal insulation, affects the properties of building partitions and contributes to possible economic savings, so as to properly design and select materials required for the construction process.The work presents the composition of lightweight concrete samples made of waste lightweight aggregates as well as their physical and mechanical properties. It includes calculations concerning floor loading and heat transfer coefficient of building partitions made of the presented lightweight concretes. Calculations provided the basis for assessing the impact of particular parameters on compressive strength and thermal insulation of walls and floors. The paper additionally describes concretes made of waste aggregates in the form of lytag (Pollytag) and slag. Based on the research, it was found that concrete containing Pollytag had the lowest density value and thermal conductivity coefficient. These parameters translated into reduction in the weight of the slab in question by more than 40% and allowed to save 25% of steel compared to an analogous plain concrete slab. The decrease in heat conductivity coefficient did not result in a significant increase in thermal insulation of building partitions.

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Section: Omega-spheresmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Study on Possible Applications of Lightweight Concrete Based on Waste Aggregate in Terms of Compressive Strength and Thermal Insulation Properties

Smoczkiewicz-Wojciechowska¹,

Sybis²,

Mądrawski³

et al. 2022

Pol. J. Environ. Stud.

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“…In recent years, there has also been a significant increase in the use of lightweight concrete blocks to improve thermal insulation [ 53 ]. It has been observed that lightweight concrete (LWC) is a good material for the thermal insulation of structures [ 54 ].…”

Section: Introductionmentioning

confidence: 99%

Compressive and Thermal Properties of Non-Structural Lightweight Concrete Containing Industrial Byproduct Aggregates

et al. 2022

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This study aimed to investigate the recycling opportunities for industrial byproducts and their contribution to innovative concrete manufacturing processes. The attention was mainly focused on municipal solid waste incineration fly ash (MSWI-FA) and its employment, after a washing pre-treatment, as the main component in artificially manufactured aggregates containing cement and ground granulated blast furnace slag (GGBFS) in different percentages. The produced aggregates were used to produce lightweight concrete (LWC) containing both artificial aggregates only and artificial aggregates mixed with a relatively small percentage of recycled polyethylene terephthalate (PET) in the sand form. Thereby, the possibility of producing concrete with good mechanical properties and enhanced thermal properties was investigated through effective PET reuse with beneficial impacts on the thermal insulation of structures. Based on the obtained results, the samples containing artificial aggregates had lower compressive strength (up to 30%) but better thermal performance (up to 25%) with respect to the reference sample made from natural aggregates. Moreover, substituting 10% of recycled aggregates with PET led to a greater reduction in resistance while improving the thermal conductivity. This type of concrete could improve the economic and environmental aspects by incorporating industrial wastes—mainly fly ash—thereby lowering the use of cement, which would lead to a reduction in CO2 emissions.

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“…Buildings are regarded as shelters and designed for thermal comfort, especially in regions with harsher climates [ 4 , 5 ], and the thermal fluctuations that are frequent occurrences in these regions resulted in increased energy consumption per building via its respective internal thermal regulation systems (air-conditioners and heaters) [ 6 , 7 ]. Passive insulation systems are seen as a less energy-intensive option for buildings in harsher climates, which has the net benefit of decreasing energy costs and being eco-friendly [ 8 , 9 ].…”

Section: Introductionmentioning

confidence: 99%

“…The specific heat is defined as the amount of heat per unit mass required to change a material’s temperature by one degree (1°). Specific heat is influenced by moisture content, temperature, concrete density, and aggregate type [ 9 , 44 ]. The value of the specific heat of standard concrete varies between 0.8–1.8 MJ/m 3 K [ 45 ].…”

Section: Introductionmentioning

confidence: 99%

Properties of a New Insulation Material Glass Bubble in Geopolymer Concrete

et al. 2021

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This paper details analytical research results into a novel geopolymer concrete embedded with glass bubble as its thermal insulating material, fly ash as its precursor material, and a combination of sodium hydroxide (NaOH) and sodium silicate (Na2SiO3) as its alkaline activator to form a geopolymer system. The workability, density, compressive strength (per curing days), and water absorption of the sample loaded at 10% glass bubble (loading level determined to satisfy the minimum strength requirement of a load-bearing structure) were 70 mm, 2165 kg/m3, 52.58 MPa (28 days), 54.92 MPa (60 days), and 65.25 MPa (90 days), and 3.73 %, respectively. The thermal conductivity for geopolymer concrete decreased from 1.47 to 1.19 W/mK, while the thermal diffusivity decreased from 1.88 to 1.02 mm2/s due to increased specific heat from 0.96 to 1.73 MJ/m3K. The improved physicomechanical and thermal (insulating) properties resulting from embedding a glass bubble as an insulating material into geopolymer concrete resulted in a viable composite for use in the construction industry.

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Review on thermal insulation performance in various type of concrete

Cited by 15 publications

References 8 publications

The Study on Possible Applications of Lightweight Concrete Based on Waste Aggregate in Terms of Compressive Strength and Thermal Insulation Properties

The Study on Possible Applications of Lightweight Concrete Based on Waste Aggregate in Terms of Compressive Strength and Thermal Insulation Properties

Compressive and Thermal Properties of Non-Structural Lightweight Concrete Containing Industrial Byproduct Aggregates

Properties of a New Insulation Material Glass Bubble in Geopolymer Concrete

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