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Engineering and Infrastructure in Dam Construction~Lessons from Vale Brazil .

Engineering and Infrastructure in Dam Construction~Lessons from Vale Brazil .

On Tuesday 28th, the mining company Vale withdrew from the UN Global Compact, the largest social and corporate responsibility network in the world. This information appears on Vale’s page on the site of the United Nations initiative. The multinational’s decision to withdraw from the Compact was taken after pressure from civil society. In February 2019, an international group of organisations formally requested the United Nations to delist the company due to the bursting of the tailings dam in Brumadinho (MG) that happened on 25 January and left approximately 170 people dead and dozens missing and homeless. At the time, the organisations claimed that Vale had not fulfilled the principles set ... »

The Offsite Construction Revolution: The Prospects

The Offsite Construction Revolution: The Prospects

Although the trend for offsite construction is undeniably upward, the pace of its development is difficult to determine. The landscape could change dramatically if an individual participant makes the right bold move—an offsite construction company acquiring a large traditional contractor, for example, or a major building materials company opting for a switch to offsite. The detailed changes are impossible to predict, but there are some rough guidelines for gauging how offsite will evolve in any particular market. First, offsite in general will likely grow fastest in regions that emphasize new buildings rather than renovations and that have key market shapers, such as a major developer or act... »

The offsite construction revolution : The Barriers to adoption

The offsite construction revolution : The Barriers to adoption

The global penetration of offsite construction is difficult to quantify. Analysts define offsite construction in different ways, according to the proportion of offsite content—50% versus 80%, say—and according to the techniques for measuring that offsite content. The data is most reliable for single-family homes, the segment that historically has been the main beneficiary of offsite construction. In some smaller markets, such as Sweden, more than 80% of new homes are now built offsite. But despite an upward trend, no major market yet exceeds 20% penetration; in the US, offsite barely registers at all. Despite its long history and its compelling value proposition, offsite is only now gaining ... »

The offsite revolution in Construction : The Advantages

The offsite revolution in Construction : The Advantages

The construction industry is a paradox. The annual global growth rate is more than 3%, but the sector is in crisis: prices are soaring, jobs remain unfilled, and demand far outstrips supply. The crisis can be attributed to one broad shortcoming: unlike almost every other industry, construction has been reluctant to modernize and thereby boost its productivity. The car factory of 2019 looks nothing like the car factory of 1919, whereas the construction site has hardly changed during that time. Of course, construction is not easily amenable to mass production, but it could certainly exploit modern industrial techniques more than it does. Offsite construction, or “prefabrication,” is the key: c... »

Greening the concrete jungle

Greening the concrete jungle

The production of steel, cement and aluminium collectively accounts for about 15% of global greenhouse gas emissions and demand for the industrial materials is on the rise. A handful of pilots are underway to develop zero or nearly-zero carbon versions of these carbon-heavy materials, but the pace of change is hampered by a dearth of investment. Here is a look at some innovative pilots across the aluminum, steel and cement industries: Aluminum According to the International Energy Agency (IEA), the energy intensity of aluminum production declined by 1.7% in 2016, compared to a 1.9% annual reduction from 2010 to 2016. The IEA is calling for an annual decline of 1.2% to reach Sustainable Devel... »

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