UiTM researchers have found that steel tubes filled with foam concrete was inferior in strength as compared to that of normal concrete.
A team of researchers from the Faculty of Civil Engineering, UiTM, studied the use of foam concrete as infill for steel tubes that were used in construction.
Concrete-filled steel tube (CFST) structure is a composite structure and consists of a steel tube that is filled up with concrete. There are many advantages of using composite structure as compared to conventional reinforced concrete (RC) structure and steel structure.
Steel tubes infilled with composite foam concrete are cheaper and it is easier to use in construction. The application of this composite structure has become increasingly popular in structural applications.
However, the use of foamed concrete as infilled material is rare and has not been studied comprehensively. Thus, this research was conducted to investigate the strength and structural behaviour of CFSTs filled with different densities of foamed concrete and with different replacement levels of Waste Paper Ash (WPSA) to cement by weight under axial (compression) loading.
All CFST column specimens were loaded on the entire surface of the CFST column specimens under axial loading. The results of the experiment showed that the series contained different densities of the foamed concrete failed at loads less than 90% of the analytical values.
It also appears that the ultimate strength of the CFST specimens mainly depends upon the strength of the infill material. The study found that the CFST specimen that is infilled with concrete attain higher strength than those of without infilled concrete.
It was found that the CFST that was infilled with foam concrete was notably inferior in strength as compared to that of normal concrete. However, higher strength of CFST is achieved when higher density of foamed concrete is adopted as infilled material.
For more information, contact
PROF. DR. HANIZAH ABDUL HAMID. firstname.lastname@example.org
PROF. DR. AZMI IBRAHIM
ASSOC. PROF. DR. HAMIDAH MOHD. SAMAN
ARUAN EFFENDY MOHD. GHAZALI
MOHD. RAIZAMZAMANI MD. ZAIN
Faculty of Civil Engineering
Universiti Teknologi MARA
40450 UiTM Shah Alam
SELANGOR D. EHSAN
NEST: building of the future is up and running
23.05.2016 | Empa - Eidgenössische Materialprüfungs- und Forschungsanstalt
Designing buildings with a positive energy balance
18.03.2016 | FIZ Karlsruhe – Leibniz-Institut für Informationsinfrastruktur GmbH
Permanent magnets are very important for technologies of the future like electromobility and renewable energy, and rare earth elements (REE) are necessary for their manufacture. The Fraunhofer Institute for Mechanics of Materials IWM in Freiburg, Germany, has now succeeded in identifying promising approaches and materials for new permanent magnets through use of an in-house simulation process based on high-throughput screening (HTS). The team was able to improve magnetic properties this way and at the same time replaced REE with elements that are less expensive and readily available. The results were published in the online technical journal “Scientific Reports”.
The starting point for IWM researchers Wolfgang Körner, Georg Krugel, and Christian Elsässer was a neodymium-iron-nitrogen compound based on a type of...
In the Beyond EUV project, the Fraunhofer Institutes for Laser Technology ILT in Aachen and for Applied Optics and Precision Engineering IOF in Jena are developing key technologies for the manufacture of a new generation of microchips using EUV radiation at a wavelength of 6.7 nm. The resulting structures are barely thicker than single atoms, and they make it possible to produce extremely integrated circuits for such items as wearables or mind-controlled prosthetic limbs.
In 1965 Gordon Moore formulated the law that came to be named after him, which states that the complexity of integrated circuits doubles every one to two...
Characterization of high-quality material reveals important details relevant to next generation nanoelectronic devices
Quantum mechanics is the field of physics governing the behavior of things on atomic scales, where things work very differently from our everyday world.
When current comes in discrete packages: Viennese scientists unravel the quantum properties of the carbon material graphene
In 2010 the Nobel Prize in physics was awarded for the discovery of the exceptional material graphene, which consists of a single layer of carbon atoms...
The trend-forward world of display technology relies on innovative materials and novel approaches to steadily advance the visual experience, for example through higher pixel densities, better contrast, larger formats or user-friendler design. Fraunhofer ISC’s newly developed materials for optics and electronics now broaden the application potential of next generation displays. Learn about lower cost-effective wet-chemical printing procedures and the new materials at the Fraunhofer ISC booth # 1021 in North Hall D during the SID International Symposium on Information Display held from 22 to 27 May 2016 at San Francisco’s Moscone Center.
24.05.2016 | Event News
20.05.2016 | Event News
19.05.2016 | Event News
25.05.2016 | Trade Fair News
25.05.2016 | Life Sciences
25.05.2016 | Power and Electrical Engineering