fib Bulletin 60. Prefabrication for affordable housing

Fernández-Ordóñez, David; Bohigas, Antoni Cladera; Crisp, Barry; Bella, Bruno Della; Doniak, Iria; Gómez, Jaime Fernández; Karutz, Holger; Laliberte, Diane; Menegotto, Marco; Salas, Julián; Ramírez, Javier Angel; Tsoukantas, S.; Billington, Cliff; Cholewicki, A.; ́Arcy, Thomas D; Campos, Paulo E. Fonseca de; Gasperi, Antonello; Gettu, Ravindra; Kanappan, S.; Marcaccioli, Luciano; Moñino, Pablo; Peña, José Adolfo; Patel, Shirish; Saha, Sthaladipti; Skjelle, Arne

doi:10.35789/fib.bull.0060

Cited by 2 publications

(3 citation statements)

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“…Aerated concrete as a lightweight material seems to be advantageous for the purpose of modular prefabrication, but it has significant limitations resulting from relatively low strength and production technology by growing in forms. Aerated concrete in applications for the construction of single-family houses and low-rise buildings has sufficient strength and is characterized by thermal insulation limiting the formation and minimizing the impact of thermal bridges [1][2][3].…”

Section: Modular Construction System Technologies Use Adapted Techniquesmentioning

confidence: 99%

“…A very good solution is the elements that can be installed using HDS trucks, which are popular in construction transport. Small objects, due to their geometry, allow installation at small overhangs, placing transport vehicles right next to the erected building [1][2][3].…”

Section: Modular Construction System Technologies Use Adapted Techniquesmentioning

confidence: 99%

“…In provincial locations, especially in locations without previous development in the vicinity, it makes it possible to limit the time and scope of construction work and not imprint on local flora and fauna. Public utility facilities, hotels, or large-format stores are being built, and single-family houses, consisting of single or groups of segments joined together, are popular [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

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AAC building components for modular construction using recycled materials

Łaskawiec,

Gębarowski,

Zając

et al. 2023

ce papers

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The article presents the results of a study of the use of aggregates from the processing of wastewater treatment plant waste for the manufacture of large‐scale prefabricated building components means large‐scale autoclaved aerated concrete. This aggregate, applied to hydration‐bonded materials, makes it possible to obtain lightweight concretes (density 1400–1600 kg/m3) with increased thermal resistance. In addition, the addition of an aluminosilicate phase to the concrete mix can favorably affect mechanical characteristics and durability. The lightweight aggregate obtained using sewage sludge is characterized by high porosity, resulting from the complete combustion of the organic parts contained in the sludge (more than 90% d.m.), which act as a porophore in the ceramization process. This feature predestines this type of aggregate for use in hydration‐bonded materials that exhibit improved thermal insulation properties. The combination of sludge‐based lightweight aggregate technology with AAC production technology, therefore, implies a synergistic action to obtain a material with improved thermal insulation parameters combined with the mechanical strength expected for structural materials. An important environmental aspect of the proposed approach is the use of waste materials including municipal sewage sludge, which is particularly difficult to manage and dispose of, and the reduction of natural resource exploitation.

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Section: Modular Construction System Technologies Use Adapted Techniquesmentioning

confidence: 99%

Section: Modular Construction System Technologies Use Adapted Techniquesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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AAC building components for modular construction using recycled materials

Łaskawiec,

Gębarowski,

Zając

et al. 2023

ce papers

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Thin-Layer Fibre-Reinforced Concrete Sandwich Walls: Numerical Evaluation

Skadins

Kuļevskis

Vulāns³

et al. 2023

Fibers

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In this study, structural thin-layer sandwich walls (SWs) made of steel-fibre-reinforced concrete (SFRC) without conventional reinforcements were investigated. Other researchers have shown that SWs with thin wythes can be used as load bearing structures in low-rise buildings, thereby reducing the amount of concrete by 2–5 times if compared to conventional reinforced-concrete SWs. In most studies, relatively warm climatic regions are the focus, and thin-layer SWs with shear connectors to obtain a certain level of composite action are investigated. In almost no studies has sound insulation been evaluated. In this study, a numerical investigation of structural, thermal and sound insulation performances was carried out. The load-bearing capacities of composite and non-composite SWs are compared. Regions with the lowest five-day mean air temperature of −20 ∘C were considered. The characteristics of the SW are compared to the requirements given in relevant European and Latvian standards. The minimum thermal insulation for family houses varies from 120 mm to 200 mm, depending on the material. To ensure sufficient sound insulation, the average thickness of the concrete wythes should be around 60 mm, preferably with a 15 mm difference between them. Structural analysis of the proposed wall panel was performed using non-linear finite element analysis software ATENA Science. The obtained load-bearing capacity exceeded the design loads of a single-story family house by around 100 times, regardless of the degree of composite action.

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fib Bulletin 60. Prefabrication for affordable housing

Cited by 2 publications

References 0 publications

AAC building components for modular construction using recycled materials

AAC building components for modular construction using recycled materials

Thin-Layer Fibre-Reinforced Concrete Sandwich Walls: Numerical Evaluation

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