Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Studying the behaviour of steel tubes filled with concrete foam

31.03.2014

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. hanizah696@salam.uitm.edu.my

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

Darmarajah Nadarajah | ResearchSEA News
Further information:
http://www.uitm.edu.my
http://www.researchsea.com

Further reports about: Engineering UiTM behaviour conducted construction conventional foam specimens structural structure tubes

More articles from Architecture and Construction:

nachricht University of Cincinnati, industry partners develop low-cost, 'tunable' window tintings
11.06.2015 | University of Cincinnati

nachricht More densely populated urban areas call for more urban quality
28.05.2015 | Schweizerischer Nationalfonds SNF

All articles from Architecture and Construction >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: X-rays and electrons join forces to map catalytic reactions in real-time

New technique combines electron microscopy and synchrotron X-rays to track chemical reactions under real operating conditions

A new technique pioneered at the U.S. Department of Energy's Brookhaven National Laboratory reveals atomic-scale changes during catalytic reactions in real...

Im Focus: Iron: A biological element?

Think of an object made of iron: An I-beam, a car frame, a nail. Now imagine that half of the iron in that object owes its existence to bacteria living two and a half billion years ago.

Think of an object made of iron: An I-beam, a car frame, a nail. Now imagine that half of the iron in that object owes its existence to bacteria living two and...

Im Focus: Thousands of Droplets for Diagnostics

Researchers develop new method enabling DNA molecules to be counted in just 30 minutes

A team of scientists including PhD student Friedrich Schuler from the Laboratory of MEMS Applications at the Department of Microsystems Engineering (IMTEK) of...

Im Focus: Bionic eye clinical trial results show long-term safety, efficacy vision-restoring implant

Patients using Argus II experienced significant improvement in visual function and quality of life

The three-year clinical trial results of the retinal implant popularly known as the "bionic eye," have proven the long-term efficacy, safety and reliability of...

Im Focus: Lasers for Fast Internet in Space – Space Technology from Aachen

On June 23, the second Sentinel mission was launched from the space mission launch center in Kourou. A critical component of Aachen is on board. Researchers at the Fraunhofer Institute for Laser Technology ILT and Tesat-Spacecom have jointly developed the know-how for space-qualified laser components. For the Sentinel mission the diode laser pump module of the Laser Communication Terminal LCT was planned and constructed in Aachen in cooperation with the manufacturer of the LCT, Tesat-Spacecom, and the Ferdinand Braun Institute.

After eight years of preparation, in the early morning of June 23 the time had come: in Kourou in French Guiana, the European Space Agency launched the...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

World Conference on Regenerative Medicine in Leipzig: Last chance to submit abstracts until 2 July

25.06.2015 | Event News

World Conference on Regenerative Medicine: Abstract Submission has been extended to 24 June

16.06.2015 | Event News

MUSE hosting Europe’s largest science communication conference

11.06.2015 | Event News

 
Latest News

Offshore wind park Westermost Rough officially inaugurated

01.07.2015 | Press release

Siemens Velaro train wins "Red Dot" award

01.07.2015 | Awards Funding

Liquids on Fibers - Slipping or Flowing?

01.07.2015 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>