Volume Change and Creep of Concrete

R.F. Feldman

The resistance to deformation that makes concrete a useful material means also that volume changes of the concrete itself can have important implications in use. Any potential growth or shrinkage may lead to complications, externally because of structural interaction with other components or internally when the concrete is reinforced. There may even be distress if either the cement paste or the aggregate changes dimension, with tensile stresses set up in one component and compressive stresses in the other. Cracks may be produced when the relatively low tensile strength of the concrete or its constituent materials is exceeded. [Read more…]

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Time for technology

by Peter Hedlund

With squeezed margins and tighter control required on projects, technologies that can reduce costs, enhance productivity and manage risk are more valuable than ever. Collaboration technology – web-based systems for managing documents and correspondence on construction projects – are an example of this and there is a strong demand for these solutions in the current climate. [Read more…]

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Think of Positive Risk as a Way to Gain Benefit

Risk is usually associated with potential events that have a negative impact on the project. However, there is also a concept of opportunity risk or positive risk. In these instances, the project manager or project team may introduce risk to try to gain much more value later. For instance, a team may decide to utilize a new technology on its project because they think it will result in dramatic effort and cost savings. [Read more…]

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Termination of the contract

by Dennis Brand
For termination of a contract due to default by the Contractor, FIDIC 4th Edition provides remedies for the employer in Clause 63.1 which, save for a fairly common provision relating to the contractor’s bankruptcy, liquidation or dissolution, requires a certificate to be issued by the engineer stating (a) that the contractor has repudiated the contract, or (b) without reasonable excuse has failed to commence or proceed with the works following a 28-day notice, or (c) has failed to comply with a specific notice or instruction concerning rejection and/or removal of improper work, materials or plant, or (d) despite previous warning from the engineer, is neglecting to comply with any of the contractor’s obligations, or (e) has contravened the provisions of the contract related to sub-contracting, in which case, upon the employer giving 14 days’ notice to the contractor, may enter upon the site and terminate the contract. [Read more…]

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Concrete Waterproofing with Krystol technology

http://www.youtube.com/watch?v=qOR9RiZSFgA

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Autodesk Revit BIM 2010 Construction Simulation 1

http://www.youtube.com/watch?v=UkftRd35pDc

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3-D models cut construction disputes

In most construction projects, an architect builds a three-dimensional model and then creates two-dimensional drawings for the general contractor and the dozens of subcontractors who are typically involved in a big commercial job. [Read more…]

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Infrastructure Breakthrough – iCrete Introduces Revolutionary New Material for Precast Concrete Producers

New iCrete product family will feature speed in application, exceptional reliability and workability, less cement, lower cost, and sections that are thinner and stronger. iCrete mixes and quality systems will revolutionize the precast methods used for construction of pre-fabricated structures and industrial parks, as well as the building of major pipelines, sewers, bridges, roads, tunnels, and railways [Read more…]

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Survive the crisis: five top tactics for developers

 I believe the economic slowdown is not a bad thing at all, but a golden opportunity for Dubai to start anew. In order to survive these tough market conditions, I’ve listed five essential strategies that developers must adopt. [Read more…]

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The trust in any relationship

by Angela Giuffrida

 While in discussion with a number of contractors over the last few weeks, all alluded to being in talks with other firms about partnering. [Read more…]

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