In-plane behaviour of expanded polystyrene core reinforced concrete sandwich panels

2021 ◽  
Vol 269 ◽  
pp. 121804
Author(s):  
Adil Ahmad ◽  
Yogendra Singh
2020 ◽  
pp. 49-52
Author(s):  
S.E. YANUTINA ◽  

The relevance of research in the factory laboratory of JSC «198 KZHI», which is part of the HC GVSU «Center», is dictated by the need to dispose of foam polystyrene waste that occurs in large quantities when producing the precast concrete. In the production of three-layer external wall panels, polystyrene heatinsulating plates of the PPS 17-R-A brand are used as an effective insulation material. The secondary use of PPS 17-R-A for its intended purpose, as a heater, is not possible. The volume of foam polystyrene produced varies from 25 to 45 m3 per month. Utilization (disposal) of foam polystyrene waste is an expensive undertaking. Its use as a filler in the production of expanded polystyrene blocks was tested in the factory’s laboratory to produce foam polystyrene concrete with specified physical and mechanical characteristics. The results of testing of expanded polystyrene concrete of classes B2.5 and B 7.5 are presented. It is shown that under the conditions of the reinforced concrete factory technology, the production of polystyrene concrete blocks is possible with the achievement of the design strength. The information presented in the article is aimed at motivating specialists who produce recast concrete to the possibility of using foam polystyrene waste for low-rise construction. Keywords: foam polystyrene, ecology, energy efficiency, foam polystyrene concrete, foam polystyrene heat insulation plates, precast concrete.


2011 ◽  
Vol 4 (3) ◽  
pp. 663-668 ◽  
Author(s):  
Zhihua Chen ◽  
Ting Zhou ◽  
Hongbo Liu ◽  
Yonghao Chen ◽  
Xiaodun Wang

2017 ◽  
Vol 135 ◽  
pp. 22-35 ◽  
Author(s):  
Zakaria Ilyes Djamai ◽  
Myriam Bahrar ◽  
Ferdinando Salvatore ◽  
Amir Si Larbi ◽  
Mohammed El Mankibi

2020 ◽  
Vol 71 (1) ◽  
pp. 18-26
Author(s):  
Mai Bui Thi Thanh ◽  
Cuong Nguyen Huy ◽  
Quang Ngo Dang ◽  
Tai Dinh Huu

Textile-reinforced concrete (TRC) is a new composite material made of high-strength textiles embedded within fine grained concrete (FGC). The application of TRC leads to the design of thin and slender structures or for repairing and strengthening of existing structural members. Autoclaved aerated concrete (AAC) is an ultra-lightweight concrete, which can be combined with high strength TRC to form some kinds of precast curtain panels in construction. The concept of the TRC-AAC panel is based on the theory of sandwich construction with strong and stiff skins, like TRC layers, bonded to a lightweight AAC core. The resulting hybrid TRC-AAC panel can be used as structural or non-structural member for the housing construction. In this paper, the flexural and shear performance of hybrid TRC-AAC sandwich panels is presented by means of experimental results. The sandwich panels use three layers of different materials: TRC for the tensile layer, AAC for the core material and FGC for the compressive layer. Three different types of glass textile were used as reinforcements in the TRC layers.


Author(s):  
Daniel Thomas ◽  
Susan C. Mantell ◽  
Jane H. Davidson ◽  
Louise F. Goldberg ◽  
John Carmody

The structural and thermal feasibility of a self-supporting sandwich panel for energy efficient residential roof applications is assessed. The assessment is limited to symmetric sandwich panels comprising two face sheets and an insulating core. Feasible panel designs are presented for loading conditions, corresponding to southern and northern climates in the United States. The base case panel is 5.5 m long for a nominal 4.6 m horizontal span and an 8/12 roof pitch. Face sheet materials considered are oriented strand board, steel, and fiber reinforced plastic. Core materials considered are expanded polystyrene, extruded polystyrene, polyurethane and poly(vinyl-chloride) foams. A wide range of material options meet building code limits on deflection and weight and prevent face sheet fracture and buckling, and core shear failure. Panels are identified that have structural depths similar to conventional wood rafter construction. Shortening the overall panel length provides greater choice in the use of materials and decreases the required panel thickness. Suggestions for improved panel designs address uncertainty in the ability of the plastic core to withstand long term loading over the expected life of residential buildings.


2019 ◽  
Vol 198 ◽  
pp. 109475 ◽  
Author(s):  
Richard O′Hegarty ◽  
Roger West ◽  
Aidan Reilly ◽  
Oliver Kinnane

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