Thermal insulation performance evaluation of autoclaved aerated concrete panels and sandwich panels based on temperature fields: Experiments and simulations

Roof and wall are known to be responsible for heat entering into a building and should therefore be thermally insulated in order to lessen energy consumption required for air-conditioning. In this study, four soil-based aerated lightweight concrete (ALC) panels each measures 750 mm (length) x 750 mm (breadth) x 70 mm (thick) with different aerial intensity of newspaper membrane encased were produced and tested on their thermal insulation property. For environmental friendly and economy reasons, clayey soil was used in place of sand to produce the ALC panels and they were tested in the Thermal Laboratory for twenty hours. Temperature gradient was computed based on the surface temperature measured during the test. The results obtained indicated that newspaper membrane encased soil-based ALC panels have superior heat insulation performance compared to control panel in terms of temperature gradient. It is found that the temperature gradient increased from 1.92 °C/cm to 2.08 °C/cm or 8.3% higher than control panel with just merely 0.05 g/cm2 of newspaper membrane encased.

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Investigating the use of autoclaved aerated concrete as an infill in reinforced concrete sandwich panels

Materials and Structures ◽

10.1617/s11527-014-0298-3 ◽

2014 ◽

Vol 48 (7) ◽

pp. 2133-2146 ◽

Cited By ~ 2

Author(s):

M. ElKashef ◽

M. AbdelMooty

Keyword(s):

Reinforced Concrete ◽

Sandwich Panels ◽

Autoclaved Aerated Concrete ◽

Aerated Concrete

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Experimental Research on Producing Thermal Insulating Bonding Mortar by Spent Polystyrene Foam

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.174-177.1253 ◽

2012 ◽

Vol 174-177 ◽

pp. 1253-1256

Author(s):

Li Peng Cai

Keyword(s):

Compressive Strength ◽

Energy Saving ◽

Thermal Insulation ◽

Experimental Research ◽

Polystyrene Foam ◽

Thermal Insulating ◽

Concrete Blocks ◽

Aerated Concrete ◽

Saving Effect ◽

Insulation Performance

In this paper, thermal insulating bonding mortar has been produced by the spent polystyrene foam particles, cement, sand, tackifier and water etc. It shows that thermal insulation performance and compressive strength of thermal insulating bonding mortar are similar with those of aerated concrete by comparison tests. In this paper, the new wall is made by thermal insulating bonding mortar and aerated concrete blocks, and the results show the thermal insulating performance of this wall can be improved and its cold bridge impact can be eliminated too. Correspondingly, the energy saving effect of buildings can be improved rapidly.

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Experimental study on flexural and shear behaviour of sandwich panels using glass textile reinforced concrete and autoclaved aerated concrete

Transport and Communication Science Journal ◽

10.25073/tcsj.71.1.3 ◽

2020 ◽

Vol 71 (1) ◽

pp. 18-26

Author(s):

Mai Bui Thi Thanh ◽

Cuong Nguyen Huy ◽

Quang Ngo Dang ◽

Tai Dinh Huu

Keyword(s):

Reinforced Concrete ◽

Lightweight Concrete ◽

Sandwich Panels ◽

High Strength ◽

Core Material ◽

Shear Behaviour ◽

Textile Reinforced Concrete ◽

Autoclaved Aerated Concrete ◽

Sandwich Construction ◽

Aerated Concrete

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.

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Cyclic testing and parametric analyses of the fabricated steel frames infilled with autoclaved aerated concrete panels

Advances in Structural Engineering ◽

10.1177/1369433216659288 ◽

2016 ◽

Vol 20 (4) ◽

pp. 629-640 ◽

Cited By ~ 3

Author(s):

Cao Zhenggang ◽

Du Peng ◽

Fan Feng ◽

Fang Ming

Keyword(s):

Mechanical Properties ◽

Numerical Models ◽

Peak Load ◽

Steel Frames ◽

Cyclic Loads ◽

Initial Stiffness ◽

Concrete Panels ◽

Autoclaved Aerated Concrete ◽

Aerated Concrete ◽

Beam Height

The influence of autoclaved aerated concrete panels on the mechanical properties of fabricated steel frames was experimentally investigated. Two fabricated steel frame specimens, which were with and without autoclaved aerated concrete panels, respectively, were tested under reversed cyclic loads. They were 1/2-scale, two-storey, and single-bay steel frames that were assembled by bolted beam-height adjustable steel beam-to-column connections. The effect of autoclaved aerated concrete panel dimensions on the mechanical behavior of infilled frames was also parametrically analyzed with the proposed numerical models which were verified on the basis of experimental data. The results indicate that the fabricated steel frames, assembled by beam-height adjustable connections, could behave in a ductile manner with sufficient stiffness and strength under cyclic loads; compared with bare steel frames, autoclaved aerated concrete panels could postpone the failure of structures and increase their initial stiffness, peak load, and energy dissipation capacity; moreover, the geometric details of autoclaved aerated concrete panels could significantly change the mechanical properties of infilled steel frames.

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