Structural behaviour of a prefabricated composite wall system made from rigid polyurethane foam and Magnesium Oxide board

Manalo, Allan

doi:10.1016/j.conbuildmat.2012.12.058

Cited by 76 publications

(38 citation statements)

References 13 publications

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“…The main reason behind this is that a reliable use of analytical equations requires determining an effective value of core shear modulus in a sandwich sample bending test [4,[7][8][9], while the presented numerical model operates on core material properties obtained from uniaxial compression and tension tests. Another factor is the dependency of MgO board's elastic properties on the stress state (different values in compression and tension) [20], which makes determining a single, effective value of both facings' modulus of elasticity a difficult task. …”

Section: Results Comparisonmentioning

confidence: 99%

“…CSIP's facings are made of composite materials which make it considerably stronger, immune to biological corrosion and more durable to weather conditions. Such desirable improvements, in comparison to traditional SIPs, make CSIPs a very attractive alternative with a broader field of applications [16][17][18][19][20][21]. Increased strength of this type of sandwich makes it a viable option even in bridge structures [22][23][24].…”

Section: Introductionmentioning

confidence: 99%

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Failure mode prediction for composite structural insulated panels with MgO board facings

Smakosz

Kreja

2018

AIP Conference Proceedings

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Abstract. Sandwich panels are readily used in civil engineering due to their high strength to weight ratio and the ease and speed of assembly. The idea of a sandwich section is to combine thin and durable facings with a light-weight core and the choice of materials used allows obtaining the desired behaviour. Panels in consideration consist of MgO (magnesium oxide) board facings and expanded polystyrene core and are characterized by immunity to biological corrosion, a high thermal insulation and a relatively low impact on environment. Customizing the range of panels to meet market needs requires frequent size changes, leading to different failure modes, which are identified in a series of costly full-scale laboratory tests. A nonlinear numerical model was created with a use of a commercial ABAQUS code and a user-defined procedure, which is able to reproduce observed failure mechanisms; its parameters were established on the basis of small-scale tests and numerical experiments. The model was validated by a comparison with the results of the full-scale bending and compression tests. The results obtained were in satisfactory agreement with the test data.

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Section: Results Comparisonmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Failure mode prediction for composite structural insulated panels with MgO board facings

Smakosz

Kreja

2018

AIP Conference Proceedings

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“…e experimental results showed a behavior governed by MgO, while a complete interaction between the fiber-reinforced rigid polyurethane foam and MgO board was achieved by using epoxy adhesives [20].…”

Section: Introductionmentioning

confidence: 96%

Experimental Characterization of Traditional Mortars and Polyurethane Foams in Masonry Wall

Foti

Lerna

Vacca

2018

Advances in Materials Science and Engineering

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Masonry is a composite material largely used in construction. It exhibits several advantages, including significant compressive strength, thermal inertia, and aesthetic beauty. A disadvantage of masonry is mainly related to the inadequate shear strength due to the poor capacity and ductility of the adopted mortar. is aspect is crucial in seismic areas. In this paper, the behavior of polyurethane foams, used as adhesives for the construction of thin joints brick masonry walls, has been investigated. First, the characterization of components was carried out, followed by laboratory uniaxial tests on masonry walls and shear tests on triplets. Moreover, a comparison of the behavior of the foam-brick walls with respect to the traditional mortars masonry was carried out, as the type of joints varies and the arrangement of the holes of the bricks varies with respect to the direction of the applied load. Results provide indications on which adhesive has to be adopted for masonry buildings in reference to the site of construction (i.e., seismic hazard).

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“…Advantages such as prompt construction, better quality, reduced need of resources and less waste have led to an increase in pre-fabricated housing [10]. There is also a growing interest in the use of composite wall systems in prefabrication industry due to lower environmental impact, light weight and lower energy consumption [11]. In addition to the environmental characteristics of these materials, one must also consider other requirements such as mechanical and thermal properties, acoustic performance, durability in specific environments, weight and dimension limits, safety, aesthetic considerations and cost [12].…”

Section: Introductionmentioning

confidence: 99%

A sustainability assessment of advanced materials for novel housing solutions

Samani

Mendes

Leal

et al. 2015

Building and Environment

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Material selection is a key step in product design and typically aims at identifying the most suitable material that meets product performance goals at minimum cost. In recent years research has been driven for developing sustainable solutions at competitive costs. This work evaluates the sustainability of advanced sandwich-structured composites for novel housing solutions. Five polymer matrix composite sandwich materials have been selected and compared concerning mechanical, thermal, acoustic and fire performance as well as cost and environmental impact, in order to study both the technical viability and the sustainability of lightweight solutions for prefabricated structural wall panels as well as for new housing; this included mechanical and fire testing of the selected materials. Subsequently, the thermal and acoustic properties of the alternatives were obtained. After performing a cost analysis and environmental assessment, the results of the tests and analyses led to a multi-criteria decision analysis (MCDA); PROMETHEE II (preference ranking organizational method for enrichment evaluation) was used to identify the best alternative. Finally the proposed solution was compared with a typical brick house performance. Higher specific strength, better thermal insulation and lower environmental impacts arose as the main advantages of the proposed structures while acoustic properties and fire safety still need to be improved.2

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Structural behaviour of a prefabricated composite wall system made from rigid polyurethane foam and Magnesium Oxide board

Cited by 76 publications

References 13 publications

Failure mode prediction for composite structural insulated panels with MgO board facings

Failure mode prediction for composite structural insulated panels with MgO board facings

Experimental Characterization of Traditional Mortars and Polyurethane Foams in Masonry Wall

A sustainability assessment of advanced materials for novel housing solutions

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