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Date: 2014
Type: Article
Identifier: uj:5079
Description: The South African design standards (SANS 2001-CC1 and COLTO) prescribes an elongation variation limit of ±6% and an average variation limit of ±3%. Most often these limits are exceeded in practice. If ... More
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Date: 2014
Type: Article
Identifier: uj:5068
Description: Two series of experiments were carried out to investigate the behaviour of pinned-ended circular hollow section (CHS) columns, subjected to axial compressive load. A total of 30 columns were tested in ... More
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Date: 2014
Type: Article
Identifier: uj:5073
Description: A number of compression tests of Mi Panels are presented. The use of lightweight Mi Panels as building system allows the reduction of construction time and waste in the building environment. The compr ... More
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Date: 2014
Type: Article
Identifier: uj:5075
Description: Due to the seriousness of environmental pollution and the production of huge energy consuming building and construction materials, the development of new eco-friendly and energy saving building materi ... More
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Date: 2014
Type: Article
Identifier: uj:5083
Description: A review of the research conducted on the compressive strength of concrete filled double skin circular tubes (CFDSCT) columns is conducted. Variables of the CFDSCT considered in this review include th ... More
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Date: 2014
Type: Book chapter
Identifier: uj:5045
Description: This paper presents a condition assessment conducted on a Johannesburg skyscraper. It had become apparent that concrete spalling occurred in areas of the top 11m of the Southern and Western facades of ... More
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Date: 2014
Type: Book chapter
Identifier: uj:5049
Description: For proper design of a drainage system that utilizes lined canals, knowledge of the seepage into a soil substrate/drainage region is necessary so that the drainage blanket and /or filter type and thic ... More
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Date: 2014
Type: Article
Identifier: uj:5066
Description: The resistance of concrete surfaces to various types of wear can be a defining performance characteristic in certain applications. Some concrete structures are required to be abrasion-resistant; among ... More
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Date: 2014
Type: Article
Identifier: uj:5076
Description: Low cost houses in most developing countries are constructed from sandcrete blocks manufactured from sand-cement mortar. In South Africa, failure of many of these blocks has been experienced leading t ... More
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Date: 2014
Type: Article
Identifier: uj:5057
Description: Multi-walled carbon nanotubes (MWCNTs) were used to try and eliminate the aggregate interfacial transition zone. Different concrete mixes were used in fixed proportions along with varying concentratio ... More
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Date: 2014
Type: Article
Identifier: uj:5065
Description: Influence of sulphuric acid on compressive strength of concrete made with blended cement-cassava peel ash was investigated in this study. This is with a view to determining the level of resistance of ... More
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Date: 2014
Type: Article
Identifier: uj:5059
Description: The coefficient of friction in an unbonded post tensioning system is influenced by many factors, and these factors include the thickness of lubricant or grease present in the system, clearance between ... More
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Date: 2014
Type: Article
Identifier: uj:5071
Description: Failure of plate strengthened flexural reinforced concrete (RC) member can be crushing of the concrete at the compression face or premature debonding of the plate from the concrete element at the tens ... More
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Date: 2014
Type: Article
Identifier: uj:5074
Description: Two series of flexural tests on 2700x600x75 mm Mi Panels are presented. The inner core of these lightweight panels is made from mixing polystyrene beads called Neopor, high strength cement, and water. ... More
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Date: 2014
Type: Article
Identifier: uj:5067
Description: The focus of this research is to modify fly ash (FA) structure using β - cyclodextrin (β-CD) to increase its pozzolanic function in concrete. A previous study by the authors has shown that a composite ... More
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