Synthesis and properties of open- and closed-porous foamed glass with a low density

König, Jakob; Lopez‐Gil, A.; Cimavilla‐Román, Paula; Rodríguez‐Pérez, Miguel Ángel; Petersen, Rasmus Rosenlund; Østergaard, Martin Bonderup; Iversen, Niels; Spreitzer, Matjaž

doi:10.1016/j.conbuildmat.2020.118574

Cited by 58 publications

(28 citation statements)

References 41 publications

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“…The use of foam-glass concrete (FGC) can also provide a good acoustic insulation wherein the annealing step is not required, and the density can also be greater than 150 kg/m 3 [ 126 ]. In fact, foamed-glass blocks of high costs can exhibit better aesthetics for indoor acoustic insulation properties [ 127 ].…”

Section: Type Of Concretesmentioning

confidence: 99%

“…In fact, foamed-glass blocks of high costs can exhibit better aesthetics for indoor acoustic insulation properties [ 127 ]. However, an FGC composite is a unique material with good acoustic properties, with an almost unlimited service life [ 126 , 128 , 129 , 130 , 131 ]. The main reason for the insufficiently widespread use of foam glass in structures is not its operational features, but the cost related with the technological features of its manufacturing.…”

Section: Type Of Concretesmentioning

confidence: 99%

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Acoustic Properties of Innovative Concretes: A Review

et al. 2021

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Concrete is the most common building material; therefore, when designing structures, it is obligatory to consider all structural parameters and design characteristics such as acoustic properties. In particular, this is to ensure comfortable living conditions for people in residential premises, including acoustic comfort. Different types of concrete behave differently as a sound conductor; especially dense mixtures are superior sound reflectors, and light ones are sound absorbers. It is found that the level of sound reflection in modified concrete is highly dependent on the type of aggregates, size and distribution of pores, and changes in concrete mix design constituents. The sound absorption of acoustic insulation concrete (AIC) can be improved by forming open pores in concrete matrices by either using a porous aggregate or foam agent. To this end, this article reviews the noise and sound transmission in buildings, types of acoustic insulating materials, and the AIC properties. This literature study also provides a critical review on the type of concretes, the acoustic insulation of buildings and their components, the assessment of sound insulation of structures, as well as synopsizes the research development trends to generate comprehensive insights into the potential applications of AIC as applicable material to mitigate noise pollution for increase productivity, health, and well-being.

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Section: Type Of Concretesmentioning

confidence: 99%

Section: Type Of Concretesmentioning

confidence: 99%

Acoustic Properties of Innovative Concretes: A Review

et al. 2021

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“…FC’s growing interest caused its excellent thermal isolation performance, the ability to dispose of various waste and other important features. [ 3 , 4 , 5 ]. At its core, FC is made from a concrete mixture into which pre-prepared foam is introduced, creating a system of closed voids within the hardened composite [ 6 , 7 ].…”

Section: Introductionmentioning

confidence: 99%

Fibre-Reinforced Foamed Concretes: A Review

et al. 2020

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Foamed concrete (FC) is a high-quality building material with densities from 300 to 1850 kg/m3, which can have potential use in civil engineering, both as insulation from heat and sound, and for load-bearing structures. However, due to the nature of the cement material and its high porosity, FC is very weak in withstanding tensile loads; therefore, it often cracks in a plastic state, during shrinkage while drying, and also in a solid state. This paper is the first comprehensive review of the use of man-made and natural fibres to produce fibre-reinforced foamed concrete (FRFC). For this purpose, various foaming agents, fibres and other components that can serve as a basis for FRFC are reviewed and discussed in detail. Several factors have been found to affect the mechanical properties of FRFC, namely: fresh and hardened densities, particle size distribution, percentage of pozzolanic material used and volume of chemical foam agent. It was found that the rheological properties of the FRFC mix are influenced by the properties of both fibres and foam; therefore, it is necessary to apply an additional dosage of a foam agent to enhance the adhesion and cohesion between the foam agent and the cementitious filler in comparison with materials without fibres. Various types of fibres allow the reduction of by autogenous shrinkage a factor of 1.2–1.8 and drying shrinkage by a factor of 1.3–1.8. Incorporation of fibres leads to only a slight increase in the compressive strength of foamed concrete; however, it can significantly improve the flexural strength (up to 4 times), tensile strength (up to 3 times) and impact strength (up to 6 times). At the same time, the addition of fibres leads to practically no change in the heat and sound insulation characteristics of foamed concrete and this is basically depended on the type of fibres used such as Nylon and aramid fibres. Thus, FRFC having the presented set of properties has applications in various areas of construction, both in the construction of load-bearing and enclosing structures.

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“…GF are highly porous materials produced by the addition of a foaming agent (FA) to the glass powder followed by a heat treatment for gas release by the FA to enable the pores formation throughout the vitreous matrix 4,5,8 . The low thermal conductivity, dimensional stability, low bulk density, non‐flammable, and higher operating temperatures than conventional insulation materials (such as organic polymer foams, glass fibers, or mineral wool fibers) make GF a perfect candidate for thermal insulation 9,10 …”

Section: Introductionmentioning

confidence: 99%

“…conventional insulation materials (such as organic polymer foams, glass fibers, or mineral wool fibers) make GF a perfect candidate for thermal insulation. 9,10 One of the hindrances to the widespread application of GF as a thermal insulator consists of the high cost of its industrial-scale production. However, based on the unique combination of its properties, with the use of cheaper feedstock, it is predicted that GF will substitute conventional foams as thermal insulators.…”

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Influence of processing parameters on the microstructure of the eco‐friendly glass foam

Rangel

Machado

Osório

et al. 2021

Int J Applied Ceramic Tech

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Among the several e-waste (electronic and electrical waste) generated, one of the most worrisome are those derived from fluorescent lamps. 1 Although these lamps class are one of the most popular sources of light, its recycling is still marginal. 1,2 Recycled glass-based scrap can greatly reduce the energy and raw material required to produce new materials, such as glass foams (GF). [3][4][5][6][7] The production of this material is an economically attractive alternative for glass recycling. 6,7 GF are highly porous materials produced by the addition of a foaming agent (FA) to the glass powder followed by a heat treatment for gas release by the FA to enable the pores formation throughout the vitreous matrix. 4,5,8 The low thermal conductivity, dimensional stability, low bulk density, non-flammable, and higher operating temperatures than

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Synthesis and properties of open- and closed-porous foamed glass with a low density

Cited by 58 publications

References 41 publications

Acoustic Properties of Innovative Concretes: A Review

Acoustic Properties of Innovative Concretes: A Review

Fibre-Reinforced Foamed Concretes: A Review

Influence of processing parameters on the microstructure of the eco‐friendly glass foam

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