Structural performance of lightweight steel-foamed concrete–steel composite walling system under compression

Mydin, Azree Othuman; Wang, Yongchang

doi:10.1016/j.tws.2010.08.007

Cited by 133 publications

(27 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In fact, there was a new building which had been connected to the original building. However, this new addition was detached from the old building, resulting in a large and visible gap [10]. A gap was also found between the wall and door frames.…”

Section: Gap and Detachmentmentioning

confidence: 99%

“…These components were consistently exposed to sunlight, rain, wind and dampness, resulting in peeling paint [10]. The excessive exposure spoiled the surface of paint and thus the surface became chalky, flake and blistered.…”

Section: Peeling Paintmentioning

confidence: 99%

“…This defect became a serious problem when various materials in the school buildings became soak for extended periods of time. Besides, excessive moisture in the air due to poor air ventilation system inside the buildings can also lead to dampness [10]. The common type of dampness found in school buildings is penetrating damp.…”

Section: Dampnessmentioning

confidence: 99%

“…Emerging Technology for Sustainable Development Congress (ETSDC 2014) Dampness can arise from unintended water caused by leaking pipes, gutters and flashings [10]. The leaking water penetrated into the wall, resulting in horrible water stains.…”

Section: -P2mentioning

confidence: 99%

“…Therefore, a study is important to investigate the contribution factors of those defects in order to create a safe building [7]. Then, a remediation plan can be developed based on the respective defects and failures to mitigate the impacts and also improve the current conditions [8,9,10].…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Assessment of Significant Causes to School Building Defects

Mydin

Salim²,

Tan

et al. 2014

E3S Web of Conferences

View full text Add to dashboard Cite

Abstract. This paper focuses on the contribution factors of building defects in Malaysian school buildings. There are several building defects commonly found in Malaysia school buildings. In fact, building defects are becoming ordinary phenomena in the construction industry which results in negative impacts on schools, in the means of building performance, health and safety aspects and overall environment conditions as well as teaching and learning processes. Thus, a study is planned to identify the common building defects faced by school buildings in Kedah, Malaysia. Then, a thorough inspection is conducted and the respective defects are recorded with the aid of photographic. As the outcomes from the interview between researcher and person-in-charge from some schools, the main factors contributing to those building defects had been determined. Besides, appropriate mitigation solutions on the building defects have been offered, which are extremely essential in retaining a healthy and serviceable school building.

show abstract

Section: Gap and Detachmentmentioning

confidence: 99%

Section: Peeling Paintmentioning

confidence: 99%

Section: Dampnessmentioning

confidence: 99%

Section: -P2mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Assessment of Significant Causes to School Building Defects

Mydin

Salim²,

Tan

et al. 2014

E3S Web of Conferences

View full text Add to dashboard Cite

show abstract

Insulation failure of lightweight composite sandwich panels exposed to flame

et al. 2020

View full text Add to dashboard Cite

A critical consideration for the serviceability of composite sandwich panels is their thermal behaviour during fire incidents. This research aims to observe the thermal performance and investigate the insulation failure of the lightweight concrete sandwich panels (LCSPs) in non-load bearing wall systems. Six standard one-sided coupling fire tests on LCSPs in accordance with Australian standard AS 1530.4 were conducted via an electrical furnace; measured by thermocouples and a thermal camera, to assess the insulation capacity and their behaviour during fire events. The results indicated that the sandwich panels have insulation capacity for 75 to 110 minutes depending on the thickness and density. The bowing of the panels due to the expansion of the exposed steel shield and the consequent de-bonding and cracking of concrete was one of the primary reasons of insulation failure. Additionally, this bowing led to the opening of the joints between the panels, which could allow the heat flows towards the unexposed surface. Moreover, the propagation of accelerated drying shrinkage cracks in the restrained concrete core was another reason for the failure. Lastly, the results suggested the benefits of increasing the thickness and density on thermal performance and insulation failure of the composite sandwich panels.

show abstract

Toughness behaviour of high‐performance lightweight foamed concrete reinforced with hybrid fibres

Dawood

Hamad²

2015

Structural Concrete

View full text Add to dashboard Cite

Lightweight foamed concrete (LWFC) is.Foamed concrete is produced either by a prefoaming or a mixed foaming method. The prefoaming method involves the separate production of base mix cement slurry (cement paste or mortar) and a stably preformed (foaming agent with water) and then the thorough blending of this foam into a base mix. In mixed foaming, the surface-active agent is mixed with the base mix ingredients and foam is produced during the mixing process, resulting in a cellular structure in the concrete [3]- [5]. Structural lightweight concrete (SLWC) is similar to normal-weight concrete except that it has a lower density [6]. SLWC is defined as a concrete having a compressive strength of up to 17 MPa with a bulk density less than 1950 kg/m 3 ; structural lightweight concrete can be 25 % lighter than normal-weight concrete but have a compressive strength of up to 60 MPa [7]. The term high-performance concrete (HPC) is used for concrete mixes that possess the following three properties: highworkability, highstrength and high durability [8].Plain concrete is a brittle material, which results in poor fracture toughness, poor resistance to crack propagation and low impact strength. This inherent brittleness has limited its application in fields requiring high impact, vibration and fracture strengths. Fibres are used to modify the tensile and flexural strengths, toughness, impact resistance and fracture energy, and to arrest crack formation and propagation and thus improve strength and ductility [9]-[12]. Glass fibres improve the strength of the material by increasing the force required for deformation and enhance the toughness by increasing the energy required for crack propagation [13]. Ghorpade [14] investigated the effect of glass fibre on high-performance concrete with silica fume as an admixture. The maximum percentage increase in compressive strength was observed at 1 % fibre and 10 % silica fume content. The flexural strength increases with up to 1 % of fibre volume, thus, the strength decreases. Polypropylene fibres are the most popular of the synthetics. They are chemically inert, hydrophobic and lightweight. Polypropylene fibres reduce plastic shrinkage cracking and subsidence cracking over steel reinforcement [6]. Banthia and Gupta [15] investigated the influ-

show abstract

Structural performance of lightweight steel-foamed concrete–steel composite walling system under compression

Cited by 133 publications

References 4 publications

Assessment of Significant Causes to School Building Defects

Assessment of Significant Causes to School Building Defects

Insulation failure of lightweight composite sandwich panels exposed to flame

Toughness behaviour of high‐performance lightweight foamed concrete reinforced with hybrid fibres

Contact Info

Product

Resources

About