Arab Council for Housing and Construction endorsed the preparation of an Arab Strategy for Housing and Sustainable Urban Development, whereas the League of Arab States (LAS) General Secretariat gives special attention to developing strategies and programs of actions to achieve sustainable development in the Arab States, with the technical support of the United Nations Human Settlements Program (UN-Habitat). More recently this 36th Ministerial Council for Housing and Construction in UAE proceeded along and part of the above strategy as reported by Emirates News Agency.
DUBAI, October 6, 2019 (WAM) — The UAE today hosted the 36th session of the Arab Ministerial Council for Housing and Construction.
The meeting was attended by Arab ministers of housing and construction, as well as Victor Kisob, Assistant Secretary-General and Deputy Executive Director of the United Nations Human Settlements Programme (UN-Habitat), Kamal Hassan Ali, Assistant Secretary-General Head of Economic Affairs, League of Arab States, and representatives of Arab, regional and international organisations.
The meeting took place on the sidelines of the third round of the Arab Ministerial Forum on Housing and Urban Development held on 7th and 8th October.
The session began with the announcement of the UAE taking over the council’s presidency from Bahrain for its next session in 2019-2020. Its participants then discussed the main challenges facing the housing and urban development sectors in the Arab region, and other topics related to housing, most notably the Arab Housing Conference, Arab Housing Day, and the Award of the Council of Arab Ministers of Housing and Construction.
The meeting also discussed the cooperation between UN-Habitat, the forum, and relevant regional groups and foreign countries.
Bassem bin Yaqoub Al Hamar, Minister of Housing of Bahrain, thanked the UAE, represented by the Ministry of Infrastructure Development and the Sheikh Zayed Housing Programme, for its hospitality and reception.
Dr Abdullah bin Mohammed Belhaif Al Nuaimi, Minister of Infrastructure Development, welcomed the ministers and delegations participating in the session and forum, stating, “In 1975, the Arab ministers of housing and construction held their first meeting in the UAE. After 44 years, I am pleased to welcome you to your second country and wish you a pleasant stay.”
“I also hope that the meetings will yield outcomes that will help make positive changes to our housing and urban development sectors, which are the basis of overall development, happiness and quality of life,” he added.
Building sites are going to look a bit different, in the future for many reasons such as those proposed by ScienceDirect a year ago in their introduction to “3D Printing of Buildings: Construction of the Sustainable Houses of the Future by BIM Mehmet Sakin*, Yusuf Caner Kiroglu”. This explains that 3D printing is a process by which physical objects are created by depositing materials in layers based on a digital model. All 3D printing processes require software, hardware, and materials to work together. The first 3D printer was invented in 1983 by Charles W. and over the last decades, 3D printing has become one of the fastest growing technologies nowadays. In its early days, it was very complicated and expensive technology.
Building sites are going to look a bit different, in the future is a picture of Shutterstock selected by Seyed Ghaffar, Brunel University Londonto illustrate his article published by The Conversation.
It’s often claimed that 3D printing – known in the trade as “additive manufacturing” – will change the way we live. Most recently, a team from Eindhoven University of Technology announced plans to build the “world’s first” habitable 3D printed houses. But it’s one thing to build small, prototype homes in a park – it’s quite another to successfully use additive manufacturing for large scale projects in the construction sector.
Additive manufacturing uses a combination of materials science, architecture and design, computation and robotics. Yet in some ways, it’s not as futuristic as it sounds. The simple approach of layer-wise construction – where building materials are layered on top of each other to create a facade – has already been practised for a long time in the construction sector, for example in conventional brick layering techniques.
The true novelty of additive manufacturing lies in its ability to combine new, highly efficient and sustainable materials with architectural design software and robotic technology, to automate and improve processes that have already been proven manually. In this sense, additive manufacturing holds many potentially groundbreaking benefits for the construction sector.
3D printing can produce up to 30% less material waste, use less energy and fewer resources, enable in-situ production (which in turn cuts transport costs), grant greater architectural freedom and generate fewer CO₂ emissions over the entire lifecycle of the product.
Printable feedstocks
But there is still some way to go before additive manufacturing technology can deliver on its potential. There are several different components of additive manufacturing, each of which must be developed and refined before the process can be successfully used in large-scale construction.
One component is printable feedstocks – the materials which are actually “printed” to create the final product. There are many types of printable feedstock, but the most relevant one for large scale construction is concrete. Printable feedstocks are typically made from a combination of bulk materials – such as soil, sand, crushed stone, clay and recycled materials – mixed with a binder such as Portland cement, fly ash or polymers, as well as other additives and chemical agents to allow the concrete to set faster and maintain its shape, so that the layers can be deposited rapidly.
In a project I am currently working on at Brunel University, we are focusing on producing a printable cement feedstock. To create materials for 3D printed constructions, scientists must carefully control the setting time of the paste, the stability of first few layers and the bonding between the layers. The behaviour of the materials must be thoroughly investigated under a range of conditions, to achieve a robust structure which can take load.
The combination of cement, sand and other additives must be just right, so that the feedstocks don’t set while still in the printer, and don’t stay wet for too long once they have been deposited to form a structure. Different grades of feedstock need to be formulated and developed, so that this technology can be used to build a range of different structural elements, such as load-bearing and large-scale building blocks.
Building blocks
Another component is the printer, which must have a powerful pump to suit the scale of manufacturing in the construction industry. The pressure and flow rate of the printer must be trialled with different types of feedstocks. The speed and the size of the printer is key to achieving a good print quality: smooth surface, square edges and a consistent width and height for each layer.
How quickly the feedstock materials are deposited – typically measured in centimetres per hour – can speed up or slow down construction. Decreasing the setting time of the feedstock means that the printer can work faster – but it also puts the feedstock at risk of hardening inside the printer system. The printing system should be optimised to continuously deliver the feedstock materials at a constant rate, so that the layers can fuse together evenly.
The geometry of the structures produced is the final piece of the puzzle, when it comes to using 3D printing in construction. When the printer and the feedstock have been properly set up, they will be able to produce full-size building blocks with a smart geometry which can take load without reinforcements. The shape stability of the truss-like filaments in these blocks is an essential part of printing, which provides strength and stiffness to the printed objects.
This three-pronged approach to adapting additive manufacturing for construction could revolutionise the industry within the next ten to 15 years. But before that can happen, scientists need to fine tune the mix ratios for the feedstocks, and refine a printing system which can cope with the rapid manufacturing of building blocks. Only then can the potential of 3D printing be harnessed to build faster, and more sustainably, than ever before.
Further to Global Inequality is on the Rise at different Countries Rates we propose Kaushik Basu, writing for Project-Syndicate since 2002 is a former Chief Economist of the World Bank, and Professor of Economics at Cornell University and Non-resident Senior Fellow at the Brookings Institution. He has on December 15, 2017, elaborated on how inequality deepening worldwide challenges all great, small, rich and poor.
As inequality continues to deepen worldwide, we do not have the luxury of sticking to the status quo. Unless we confront the inequality challenge head on – as we have just begun to do with another existential threat, climate change – social cohesion, and especially democracy, will come under growing threat.
MUMBAI – At the end of a low and dishonest year, reminiscent of the “low, dishonest decade” about which W.H. Auden wrote in his poem “September 1, 1939,” the world’s “clever hopes” are giving way to recognition that many severe problems must be tackled. And, among the severest, with the gravest long-term and even existential implications, is economic inequality.
The alarming level of economic inequality globally has been well documented by prominent economists, including Thomas Piketty, François Bourguignon, Branko Milanović, and Joseph E. Stiglitz, and well-known institutions, including OXFAM and the World Bank. And it is obvious even from a casual stroll through the streets of New York, New Delhi, Beijing, or Berlin.
Voices on the right often claim that this inequality is not only justifiable, but also appropriate: wealth is a just reward for hard work, while poverty is an earned punishment for laziness. This is a myth. The reality is that the poor, more often than not, must work extremely hard, often in difficult conditions, just to survive.
Moreover, if a wealthy person does have a particularly strong work ethic, it is likely attributable not just to their genetic predisposition, but also to their upbringing, including whatever privileges, values, and opportunities their background may have afforded them. So, there is no real moral argument for outsize wealth amid widespread poverty.
This is not to say that there is no justification for any amount of inequality. After all, inequality can reflect differences in preferences: some people might consider the pursuit of material wealth more worthwhile than others. Moreover, differential rewards do indeed create incentives for people to learn, work, and innovate, activities that promote overall growth and advance poverty reduction.
But, at a certain point, inequality becomes so severe that it has the opposite effect. And we are far beyond that point.
Plenty of people – including many of the world’s wealthy – recognize how unacceptable severe inequality is, both morally and economically. But if the rich speak out against it, they are often shut down and labelled hypocrites. Apparently, the desire to lessen inequality can be considered credible or genuine only by first sacrificing one’s own wealth.
The truth, of course, is that the decision not to renounce, unilaterally, one’s wealth does not discredit a preference for a more equitable society. To label a wealthy critic of extreme inequality as a hypocrite amounts to an ad hominem attack and a logical fallacy, intended to silence those whose voices could make a difference.
Fortunately, this tactic seems to be losing some of its potency. It is heartening to see wealthy individuals defying these attacks, not only by openly acknowledging the economic and social damage caused by extreme inequality, but also by criticizing a system that, despite enabling them to prosper, has left too many without opportunities.
In particular, some wealthy Americans are condemning the current tax legislation being pushed by Congressional Republicans and President Donald Trump’s administration, which offers outsize cuts to the highest earners – people like them. As Jack Bogle, the founder of Vanguard Group and a certain beneficiary of the proposed cuts, put it, the plan – which is all but guaranteed to exacerbate inequality – is a “moral abomination.”
Yet recognizing the flaws in current structures is just the beginning. The greater challenge is to create a viable blueprint for an equitable society. (It is the absence of such a blueprint that has led so many well-meaning movements in history to end in failure.) In this case, the focus must be on expanding profit-sharing arrangements, without stifling or centralizing market incentives that are crucial to drive growth.
A first step would be to give all of a country’s residents the right to a certain share of the economy’s profits. This idea has been advanced in various forms by Marty Weitzman, Hillel Steiner, Richard Freeman, and, just last month, Matt Bruenig. But it is particularly vital today, as the share of wages in national income declines, and the share of profits and rents rises – a trend that technological progress is accelerating.
There is another dimension to profit-sharing that has received little attention, related to monopolies and competition. With modern digital technology, the returns to scale are so large that it no longer makes sense to demand that, say, 1,000 firms produce versions of the same good, each meeting one-thousandth of total demand.
A more efficient approach would have 1,000 firms each creating one part of that good. So, when it comes to automobiles, for example, one firm would produce all of the gears, another producing all of the brake pads, and so on.
Traditional antitrust and pro-competition legislation – which began in 1890 with the Sherman Act in the US – prevents such an efficient system from taking hold. But a monopoly of production need not mean a monopoly of income, as long as the shares in each company are widely held. It is thus time for a radical change, one that replaces traditional anti-monopoly laws with legislation mandating a wider dispersal of shareholding within each company.3
These ideas are largely untested, so much work would need to be done before they could be made operational. But as the world lurches from one crisis to another, and inequality continues to deepen, we do not have the luxury of sticking to the status quo. Unless we confront the inequality challenge head on, social cohesion and democracy itself will come under growing threat.
Yesterday May 1st, 2017, we would have liked to ponder on Israel’s current housing situation. The idea was spurred by Al Jazeera that on April 28th had on their show animated by one of their sharpest Mehdi Hassan looking at the very topic but in a different way asked Israeli diplomat Dani Dayan “ Have settlements killed the two-state solution? “
This latter did not waste time defending settlement building and / or housing units development as undertaken and / or allowed by the Israeli government despite all the noise that this is engendering. This made one wonder if all of the above was the result of what is presently on-going in not far from the West Bank territories where most of those above developments usually take place, but as it were in Israel proper. According to a RealtyToday citing a recent Bloomberg report on the matter and like for all countries developed and developing alike, lack of sufficient and / or suitable housing as elaborated on in this article sounded as if coming as a surprise of some sort to all.
Here it is with thanks to the authors and publishers :
Israel is facing a housing crisis with home prices continuing in the upward trend and home inventory lacking 100,000 apartments.
As reported by Bloomberg, the housing market could determine how the Israeli politicians would fare in the upcoming election in the country. The publication noted that while the country is home to top scientists and engineers, the housing problem can seem to be solved.
House prices, which have more than doubled in less than a decade, resulted in a mass protest back in 2011. Last year, Israel’s home prices rose 7.8 percent, largely driven by the government’s low benchmark rate. The average home price in the country stands at $360,000.
There is a need to increase the country’s housing supply, but building data doesn’t seem good. Last year, housing starts rose 3.9 percent, but completion rate dropped 2.8 percent.
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Finance Minister Moshe Kahlon has some measures to introduce but analysts are skeptical they would generated results in the near future. While waiting for the long-term policies to bring results, Kahlon introduced some short-term measures such as the increase in taxes for investors. These, however, fail to address the core issues, said Michael Sarel, a former Finance Ministry chief economist.
“Raising taxes on investors simply reduces the number of rental apartments, which hurts the middle and lower classes as well,” he told Bloomberg.
The government recently issued a call for bids from foreign construction companies. According to Globes, six firms will be chosen and each will be allowed to bring up to 1,000 workers to Israel. The call aims to boost construction of residential properties in the country and consequently close the gap between supply and demand. The shortage in housing supply has been driving housing prices in recent years.
3D printing has been pioneered in the GCC region for some time now especially in the building industry generally but more specifically in a skyscraper as recently reported in Dubai. The local media reported that a ‘quarter of buildings in Dubai will be based on 3D printing technology by 2030 under a new strategy launched by Sheikh Mohammed bin Rashid Al Maktoum’. Indeed, 3D printing of building combines mobile robots with existing construction methods to make the construction processes faster, cost-effective and possibly sustainable.
The GCC media elaborated at length on how 3D printing could decrease construction costs and shorten delivery timelines making it, in the future, easy for developers to propose affordable housing hence decreasing all risks of delayed delivery and above all costs overruns.
The only snag is that of the current legislation having been set for conventional building methods and developed by reference to the traditional approaches to construction and materials procurement would have to be revisited so as to allow a full extent of this technology in the future. This would objectively be an interesting road to go down on especially for the heavily populated regions of the MENA such as those of North Africa.
In any case, and if 3D printing as a construction method were to be widely adopted notably in the affordable housing segment, it would certainly give rise to new business models and contractual relationships between the different regions of the MENA.
Meanwhile, an interesting article of the World Economic Forum written by Alex Gray, Formative Content and published on Thursday 30 March 2017, illustrates well this new model of business and is reproduced here for hopefully our viewers’ appreciation.
House-building can be an irritatingly slow process. In the US it takes six months on average to construct a home. But now a robot can assemble the basic frame of a house — foundations, floor, walls and roof — in a single day.
Image: Apis Cor
The San Francisco start-up behind the robot, Apis Cor, says that it is the first company to develop a mobile 3D printer able to print entire buildings.
Here’s their first home going up on a site in Russia.
At 400 sq ft (38m²) the house is cosy but proves the point that fast turnaround home-building is now possible.
Image: Apis Cor
The cost of construction is about $10,000. And the buildings can be any shape, a potential boon for architects.
Such technology could help in areas with drastic housing shortages. And one American NGO, Field Ready, thinks that 3D printing could be deployed directly to disaster zones.
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