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Tag: low-carbon construction

Recycling Cigarette Butts into Asphalt

Posted on by dishanth
Recycling Cigarette Butts into Asphalt

Cigarette butts are the most littered item worldwide. Over 4.5 trillion cigarette butts pollute our environment every year. They do not easily biodegrade and are full of chemicals that are toxic to the wildlife that may ingest them. They are small individually, but they add up to a big problem. A waste management company in Bratislava, Slovakia, has found a new way of recycling cigarette butts, and that is by transforming cigarette butts into asphalt.

The environmental effect of cigarettes

More than 6 trillion cigarettes are smoked yearly around the world. You are probably familiar with how cigarettes cause air pollution due to the burning of tobacco, which releases harmful chemicals into the air. But did you know the butts from cigarettes are the most common form of personal litter in the world?

In the world total, cigarette butts make up more than one-third of litter. While cigarette butts may look like cotton, they are made of plastic fibers which are tightly packed together. And because they are made from man-made materials, they won’t organically break down into the environment.

Moreover, because cigarette butts are made of toxic chemicals when they are disposed of improperly, these chemicals (such as nicotine, lead, cadmium, and arsenic) will leach into the environment. The toxic chemicals can find their way into rivers, lakes, and oceans, harming aquatic life and contaminating water sources. There is also a risk of wildlife mistaking cigarette butts for food, accidentally injesting them.

Transforming cigarette butts into asphalt

A municipal waste management company in Bratislava, Slovakia, is pioneering a new way of recycling cigarette butts. At the end of 2023, the company trialed special containers designed to collect standard cigarette filters and those found in modern heated tobacco devices like vapes. And placed them around the city.

In collaboration with companies SPAK-EKO and EcoButt, the Bratislava City Council will be recycling cigarette butts to use the discarded materials to create asphalt for roads. Once the filters have been collected from the specialized bins, they will undergo a cleaning process to remove toxins and any residual tobacco. The cleaned filters are composed of cellulose acetate from the filters, which are then transformed into fine fibers. The fibers are mixed with traditional asphalt materials, which help with the asphalt’s durability and longevity.

The final product can be used just like conventional asphalt for creating new roads or repairing existing ones.

This isn’t the first time Slovakia is recycling cigarette butts into asphalt to be used on their roads. Their first cigarette filter road is located in  Ziar and Hronom and was the first in the world.

With this program, cities in Slovakia can encourage people not only to stop throwing their cigarette butts on the ground, where they will do harm to the environment. But this project can also show people how they can participate in sustainable urban development.

Recycling cigarette butts into asphalt can also help reduce the environmental impact of the construction industry. The production of asphalt involves heating and mixing aggregates with bitumen, a petroleum-based binder. This process releases greenhouse gases and other air pollutants, contributing to air quality issues and climate change.

Rainwater runoff from asphalt surfaces can carry pollutants, such as oil, heavy metals, and chemicals from vehicle exhaust, into waterways, potentially contaminating aquatic ecosystems. Recycling cigarette butts in the asphalt may help absorb and reduce many of these environmental harms and could change how we construct our roads.

Cigarettes might not be disappearing in the very near future, but we can find ways to make them less damaging to our planet and help cities be a little cleaner. Providing users with these specialized cigarette butt bins is one way to keep cigarette butts off the ground and out of our waters. And repurposing these butts is one way we can support a circular model and reuse and repurpose our resources.

Slovakia has a very innovative plan, and we hope it catches on around the world.

 

 

 

 

Source   Happy Eco News

How the World’s Whitest Paint Can Reduce Energy Use

Posted on by dishanth
How the World’s Whitest Paint Can Reduce Energy Use

Scientists have long understood the climate and energy efficiency benefits of reflective white paints. Now, engineers at Purdue University have created the world’s whitest paint that reflects more than 98% of sunlight, leaving all other paints appearing grey by comparison. As demand for sustainable solutions grows globally, this innovation promises greener buildings and cities by passively lowering carbon emissions and energy use.

The world’s whitest paint formulation was reportedly completed in early 2021. While initially produced for research applications at Purdue, press releases indicate Perdue intends to optimize and commercialize the product for widespread availability as early as late 2023. This rapid early adoption timeline speaks to the hunger for market-viable incremental gains in cooling efficiency as global temperatures continue rising.

With the formulas and methods published openly, it remains to be seen whether alternate whitest paint variants may emerge from other research teams or commercial producers, sparking a global race toward passive cooling innovation. Even moderate cooling boosts from white paint could incentivize entities like major cities to begin budgeting for wide-scale reflective surface projects within the decade.

Applying the world’s whitest paint to building rooftops and envelopes can reduce their surface temperatures by over 20°C compared to conventional options. By reflecting rather than absorbing heat, the broad deployment of the world’s whitest paint could mitigate the phenomenon of urban heat islands, where dense cityscapes absorb and radiate increased warmth. Modeling suggests summer city temperatures could decrease by over 2°C using this approach.

The development of a highly reflective and renewable calcium carbonate-based paint offers an innovative solution to excessive urban heating. As climate change brings more frequent and intense heat waves, the cooling potential of reflective white surfaces will grow increasingly impactful. Deploying this paint across a city’s building stock can lower indoor and outdoor temperatures while cutting air conditioning demands as well. Transitioning rooftops from heat-trapping dark colors to the whitest paint formula could become a climate resilience strategy for communities worldwide.

Looking beyond buildings, custom reflective paints and paving materials show similar potential for cooling everything from vehicles to sidewalks to transit shelters. An urban landscape covered with maximum heat reflection could compound cooling benefits compared to white rooftops alone. More research into expanding high-albedo surfaces across the built environment will further quantify the associated quality of life and emissions reductions. Simple shifts in surfaces and materials at scale could make future cities markedly more livable.

The world’s whitest paint keeps surfaces cool to the touch, even in the hottest environments. Compared to the air temperature at mid-afternoon, a surface painted with the world’s whitest paint can be several degrees cooler than regular white paint. At night, the difference is even more pronounced, up to 19 degrees.

The corresponding drop in air conditioning electricity demand is equally significant from an emissions reduction perspective. Studies by the US Environmental Protection Agency show cool roofs can reduce a building’s annual air conditioning requirements by 10-30%. The increased grid energy efficiency will provide critical flexibility for integrating renewable energy sources as part of essential decarbonization efforts across the power sector.

While the world’s whitest paint’s exceptional solar performance will justify further optimization before mass production, its imminent commercial arrival heralds a shift in leveraging incremental materials innovation. The compound benefits of collective small-scale action represent meaningful progress, offering pragmatic climate hope. If cool paint alone makes summers more bearable, our combined creative efforts focused first on the possibly more than the ideal may yet brighten prospects for sustainable living.

With vision and patience, Perdue’s ultra-white paint is but a glimpse of a future where green cities are dotted with communities that thrive in the hotter world they’ve warded off, one roof at a time.

 

 

 

 

Source  Happy Eco News

Coffee Biochar Concrete Carbon Sequestration

Posted on by dishanth
Coffee Biochar Concrete Carbon Sequestration

Coffee is one of the most popular drinks worldwide; on average, 400 billion cups of coffee are consumed each year. As a result, approximately 18 million tonnes of coffee grounds are produced annually. Coffee grounds can be used for a variety of purposes. It can be used to fertilize your garden or added to compost. Coffee grounds can neutralize odors, can be used to exfoliate your skin, tenderize meats, and many other uses.

Despite all of these amazing uses for coffee grounds, the reality is that most of the coffee grounds produced actually end up in landfills; about 75% in fact. Rotting coffee grounds generate methane, a powerful greenhouse gas contributing to warming. Rotting coffee grounds also emit carbon dioxide, nitrous oxide, and ammonia. While there have been programs from coffee shops that will donate their coffee grounds to customers to use in their gardens (Starbucks has been part of the Grounds for Your Garden program since 1995), but most coffee shops are not implementing these initiatives.

Researchers from the Royal Melbourne Institute of Technology University in Australia have found a way to use coffee grounds on a larger scale and to eliminate the risk of them ending up in landfills. And that is to use coffee biochar concrete in the construction industry.

The researchers have developed concrete that is almost 30 percent stronger than traditional concrete by mixing in coffee-derived biochar. The coffee biochar was created using a low-energy process called pyrolysis. The organic waste is heated to 350 degrees Celsius without oxygen to avoid the risk of generating carbon dioxide. Under pyrolysis, organic molecules vibrate and break down into smaller components, creating biochar. This is a similar process that is used to roast unused beans to enhance their taste, except without the use of oxygen.

In coffee biochar concrete, about 15 percent of the sand they would use to make concrete is replaced with the coffee biochar, thus creating new concrete. The coffee biochar is finer than sand, and its porous qualities help to bind to organic material. Reducing the total use of sand in concrete will minimize the construction industry’s environmental footprint. It is said that over 50 billion metric tons of natural sand are used annually in construction. Sand mining significantly stresses ecosystems, including riverbeds and riverbanks, coffee biochar concrete can relieve some of that pressure on the environment.

The cement industry is the third largest source of industrial air pollution, including sulfur dioxide, nitrogen oxides, and carbon monoxide. Moreover, cement currently accounts for around 8% of global carbon dioxide emissions. Turning coffee- biochar into concrete will reduce the construction industry’s reliance on continuous mining of natural resources, making the industry more sustainable.

When introduced into concrete mixtures, the coffee biochar concrete was found to act as a microscopic carbon repository within the concrete matrix. The alkaline conditions within hardened concrete enable biochar to mineralize and firmly bind carbon dioxide into its structure over time. Concrete containing even a small percentage of spent coffee biochar was shown to sequester meaningful quantities of CO2 from the curing process and surrounding environment.

Utilizing waste coffee grounds to synthesize biochar for carbon sequestration could offer a sustainable way to offset concrete’s sizable carbon footprint while giving new purpose to spent grounds. With further research, coffee biochar concrete could provide a feasible carbon capture pathway for the construction industry.

The researchers estimate that if all the waste grounds produced in Australia annually could be converted into coffee biochar, it would amount to roughly 22,500 tonnes. Compare that to the 28 million tonnes of sand that are required to produce over 72 million tonnes of cement concrete in Australia. Just think: Australia has over 13 thousand coffee shops, whereas the United States has over 38 thousand coffee shops. If this project expands outside of Australia, coffee biochar concrete could significantly impact the environment and waste.

The research on coffee biochar concrete is still in the early stages; there is still a lot of testing to be done, but it shows that there are innovative and unique ways to reduce and repurpose organic landfill waste. Once the researchers can account for things like durability, the researchers will collaborate with local councils on future infrastructure projects, including the construction of walkways and pavements. Just think, we are one step closer to adding sustainability into the construction industry and one step closer to walking on coffee biochar concrete!

 

 

 

 

Source   Happy Eco News

Low Carbon 3D Printed Homes – Lower Cost too

Posted on by dishanth
Low Carbon 3D Printed Homes – Lower Cost too

An emerging application of 3D printing technology is fabricating entire homes through additive manufacturing. Early adopters demonstrate that 3D printing residential buildings carry significantly lower embedded carbon than conventional construction methods.

By optimizing materials and printing processes, 3D home printing could provide affordable, efficient, low-carbon housing to growing populations if adopted at scale.

Also known as additive manufacturing, 3D printing builds structures by depositing materials layer by layer according to digital models. Concrete is typically extruded through a moving print nozzle onto a substrate, hardening upon deposition to gradually form walls and roofs of low carbon 3D printed homes.

Companies pioneering low carbon 3D printed homes include Icon, SQ4D, and Mighty Buildings. Their printed concrete or polymer designs streamline manual labor of framing, insulation, and finishing. Architectural designs are also easier to customize versus cookie-cutter manufactured units.

But the sustainability benefits are among the most significant advantages over current construction. Architect Sam Ruben, an early adopter of 3D printing for eco-homes, states that 3D printing can reduce lifecycle emissions by over 50% compared to standard building techniques.

Part of the savings comes from more efficient material usage. Conventional construction methods are wasteful, generating excessive scrap materials that go to landfills—3D printing deposits only the needed amount layer-by-layer, eliminating waste.

Printing also allows easier integration of recycled components like crushed concrete aggregate into prints, diverting waste streams. And lightweight printed structures require less embedded energy to transport modules. Optimized print geometries better retain heat as well.

But the biggest factor is speed – printed homes can be move-in ready in days rather than weeks or months. A standard SQ4D home prints in just 8-12 hours of machine time. Accelerated production means less energy consumed over the total construction period.

And speed has financial benefits, too, reducing the logistical costs of prolonged projects. Combined with simplified labor, 3D printing can cut estimated construction expenses up to 30%. Those cost savings make printed homes more accessible to low-income groups while stimulating large-scale adoption.

To quantify benefits, Mighty Buildings completed a life cycle assessment comparing their printed composite polymer dwellings against conventional homes. They estimated their product cut emissions by over one-third during materials and construction. Waste production dropped by over 80%.

Such data helped the company achieve third-party verified EPD declarations certifying their low carbon 3D printed homes. Mighty Buildings believes printed homes could eliminate over 440 million tons of carbon emissions if comprising 40% of California’s housing needs by 2030.

Despite advantages, barriers remain to limit widespread 3D printed housing. Printed buildings still require finishing like plumbing, electrical, windows, and roofing. Developing integrated printing around and including those elements will maximize benefits.

High upfront printer costs also impede adoption, though expected to fall with scaling. And building codes need updates to cover novel printed structures despite proven duribility. Some jurisdictions like California are pioneering efforts to add low carbon 3D printed homes as approved models in housing codes.

But if technical and regulatory hurdles are resolved, additive construction could offer meaningful emissions cuts. With global populations projected to add 2 billion new urban dwellers by 2050, low carbon 3D printed homes may become a go-to sustainable building technique, especially in growing developing countries.

The urgent need for dense, low-carbon housing solutions to accommodate global populations makes 3D printing’s advantages stand out. Printed homes advance from gimmick to viable strategy against climate change.

Eco-conscious homebuyers on a budget have a new choice – low carbon 3D printed homes made from low-carbon cement. A new housing tract in Round Top, Texas has introduced small dwellings printed using concrete that produces just 8% of the carbon emissions of traditional Portland cement manufacturing.

Habitat for Humanity last year unveiled its first low carbon 3D printed home in Williamsburg, Virginia. The project represented Habitat for Humanity’s first completed 3D printed home in the country.

By combining 3D printing techniques with more sustainable cement mixtures, homebuilders can reduce the carbon footprints of affordable printed housing even further.

 

 

 

 

 

 

Source  Happy Eco News

Mush-Rooms: How Mycelium Concrete Could Revolutionize Building Construction

Posted on by dishanth
Mush-Rooms: How Mycelium Concrete Could Revolutionize Building Construction

Mush-Rooms: Mycelium concrete (Myocrete) could revolutionize low-carbon building construction and provide another tool for building green.

A new paper published by the University of Newcastle has outlined a new method of creating a mycelium concrete construction material, with potentially far-reaching changes as a result.

The Need for Low-Carbon Building Materials

Concrete, by far, is the world’s most used building material. It is cheap, incredibly strong, and easy to manufacture. However, it carries costs elsewhere in our world.

The environmental impact of concrete manufacture, use, and transportation is incredibly high. Concrete production is responsible for 8% of all greenhouse gases worldwide, making it the second largest source of greenhouse gas emissions. Natural materials like mycelium concrete (myocrete) might be part of the answer.

Burning fossil fuels creates most of these greenhouse gases to heat the enormous kilns used to create concrete. As well as that, there are the negative effects of mining the sand and gravel required to create concrete, which disturbs the environment and destroys natural ecosystems.

There is also the fact that concrete production requires massive amounts of water, which puts a strain on communities and areas already in need.

There have been some developments to make concrete less environmentally damaging, such as improving the efficiency of kilns so they don’t require as much heat; however, by and large, concrete production and use have been disastrous for our world.

Nevertheless, new developments have been underway to replace this widely used building material, such as mass timber. However, a unique and potentially revolutionary new material could be just around the corner, and it’s something that you’re probably more used to seeing on your plate than in your buildings.

Mushrooms in Our Walls

Mycelium-based construction material research, including mycelium concrete, has been underway for several years, as the effects of concrete production have been well-documented for decades. However, so far, the ability to scale and use mycelium in construction has been limited by the available technology and methods.

Currently, the method used in creating mycelium-derived construction materials is by filling a rigid mold with a mixture of mycelium and a food source such as grain for the mycelium. This method can produce rigid shapes, such as bricks, which can be used in construction.

However, there are limitations to the usability of these materials. For one, the strength required to compete with concrete isn’t there, and the rigid mold limits the variety of shapes and structures.

A new method created at the University of Newcastle, dubbed mycocrete (mycelium concrete), could completely change this and how construction has been done. The way mycocrete works is similar to past methods, with some distinctions.

One of them is in the mold that the paste is put into; where previous methods used rigid molds, mycocrete uses a permeable knitted mold that facilitates the growth of the mycelium by the amount of oxygen available. This flexible mold also allows the mycelium to grow in shapes that otherwise would be impossible with a rigid mold.

The process works by filling the knitted mold with a mixture of mycelium, paper powder, paper fiber clumps, water, glycerin, and xanthan gum. This is then hung up in a dark, warm, humid environment to facilitate the mycelium’s growth.

The result is a mycelium-based material significantly stronger than conventional mycelium bricks, notably much stronger than the material created with rigid molds. This is due to the amount of oxygen the mycelium has access to, given the mold’s permeability.

Myocrete is Still in the Early Stages, Though

However, despite the team’s promising results at Newcastle, myocrete mycelium concrete based buildings are still quite far off.

While continuing to develop the mycelium compound is still of major importance, the main obstacle is the fact that the factories and industries that work with the construction industry will need to be re-tooled for mycelium concrete along with new installation equipment being implemented.

Nonetheless, they have created some interesting prototypes, including the “BioKnit” project. This project was created to demonstrate the use of alternative materials in solving conventional construction design problems.

The team created BioKnit as one piece to limit weak spots inherent in joinery. Dr. Jane Scott, the author of the corresponding paper, said, “Our ambition is to transform the look, feel, and well-being of architectural spaces using mycelium concrete in combination with biobased materials such as wool, sawdust, and cellulose.”

With the priority being placed on reducing the environmental impact of construction, this new method could completely change the way we live and the spaces we live inside.

 

 

 

 

Source Happy Eco News

Using Bio-Based Materials to Build Cities

Posted on by dishanth
Using Bio-Based Materials to Build Cities

Did you know about 56% of the world’s population live in cities? The population numbers of urban dwellers are expected to double by 2050 when nearly 7 out of 10 people will live in cities. Cities are polluted due to industrial and motorized transport systems that rely on fossil fuels. The infrastructure that makes up cities is also constructed with carbon-intensive materials. As a result, cities account for over 70% of global carbon dioxide emissions.

We can’t eliminate these systems that make up our cities, but we can use bio-based materials to make them more sustainable. Carbon emissions could be significantly reduced if just a small percentage of new infrastructure in cities is constructed using sustainable bio-based materials. Moreover, these new buildings could also boost carbon storage and help us reach net zero.

Bio-based materials are catching on in the construction industry. They are materials that grow or are a natural part of the biosphere. Bio-based materials include Timber, straw, hemp, cork, clay, and earth. Besides being honest, these bio-based materials are renewable and have a lower, neutral, or negative embodied energy and carbon than traditional construction materials. Timber, for example, has around three times less embodied carbon than steel and over five times less than concrete.

The construction industry accounts for more than 39% of energy and process-related global carbon emissions. Using timber for building, it can store carbon rather than emit it. The Stockholm Wood City will be built in Sickla, Sweden, and is said to be the world’s biggest wooden city. Wooden construction means a significantly reduced climate impact during the construction phase and the whole life cycle. It also has a faster and quieter construction process.

Another bio-based material emerging in the construction industry is algae. Algae are being used in building facades as a sustainable way to generate heat and biomass for various purposes. The algae act like double glazing, but there is water and algae instead of air between the two panes. The algae will also absorb carbon dioxide and insulate the structure.

Hempcrete is a composite material made from hemp hurds, lime, and water. It is a strong, lightweight, and fire-resistant material that can be used for a variety of building applications, such as walls, floors, and roofs. Hempcrete is considered to be a carbon-negative bio-based material. It absorbs more carbon dioxide from the atmosphere than it produces during its production and use. Further, the production of hempcrete also requires less energy than the production of traditional building materials, such as concrete.

Because hempcrete is a good insulator, it can help to keep buildings cooler in the summer and warmer in the winter. This means that less energy is needed to heat and cool buildings, which reduces the amount of carbon dioxide that is emitted into the atmosphere.

Kenaf is a type of fiber that is made from the stems of the kenaf plant. It is a strong, durable, and lightweight fiber that can be used to make a variety of building materials, such as bricks, panels, and insulation.

Miscanthus is a type of grass that is grown for its biomass. It can be used to make a variety of building materials, such as boards, panels, and insulation.

Other benefits of using bio-based materials in the construction industry are that it helps to stimulate local economies, job creation, biodiversity and reforestation efforts. Using natural materials can help provide affordable and sustainable housing at scale.

While getting the entire construction industry on board with bio-based materials is challenging, some countries are trying to ensure this becomes the norm. The French government has ruled that any public construction financed by the state must contain at least 50% bio-based materials. Amsterdam requires that 20% of the city’s housing projects be constructed with bio-based materials starting in 2025.

As cities and population sizes grow, we will see a rise in carbon emissions. If the construction industry turns to using bio-based materials, there is a chance that we will see healthier cities and a healthier planet over time.

 

 

 

 

Source – Happy Eco News

 

Researchers In Syria Have Discovered Concrete Recycling Method

Posted on by dishanth
Researchers In Syria Have Discovered Concrete Recycling Method

War is hell. This sentiment has been repeated throughout human history as the devastation and destruction of countries and communities it causes is incalculable. Syria is a prime example of how civil or otherwise war can destroy a society and its infrastructure.

The war began in the context of high youth unemployment, drought, a one-party dictatorship that crushed basic human freedoms and dignity, and extreme wealth inequality. It was a surprise to no one that in 2011, insurgency by oppressed groups in the region began in earnest, spiralling Syria into a conflict that continues to this day with no end in sight. The devastation this war has brought has caused 5.7 million people to flee the country due to the risk that the war has brought to their lives.

The war destroyed 130,000 buildings, many of these the homes of everyday people and their businesses. All this destruction is horrible, and as if they hadn’t experienced enough of it, Syria fell victim to a 7.7 Richter earthquake in February, expanding the damage even further. However, despite all this horrific destruction, serious efforts have been made to expedite the recovery and reconstruction of this battered country. 70% of the 130,000 buildings destroyed were made of reinforced concrete. Scientists have discovered that they can use a significant amount of this rubble to create new concrete, recycling what is there and saving costs compared to importing new concrete.

The study led by Professor Abdulkader Rashwani proved that recycled concrete made from the rubble of old buildings doesn’t significantly impact the mechanical performance of the new concrete. This is the first time recycled concrete has been proven to do this, as other attempts in other countries have been made. Still, due to the disparity in methods of manufacture, mechanical performance hasn’t been guaranteed. When people return, they will want to rebuild the buildings that had been destroyed.

Transportation of raw materials is one of the highest costs, and aggregate being increasingly scarce makes recycling existing materials necessary. This recycled concrete is made by crushing the rubble, removing any steel or textiles, and washing the resulting aggregate. The fine material washed out is sand and cement, and it is also being studied to determine if it can be reused.

The material was then tested for tensile and compressive strength and how much water, co2, and chlorine were absorbed. The concrete passed all of the tests, and now the protocol stands as a model for other war-torn or earthquake-damaged countries to rebuild their cities and communities. In an interview with the Guardian, Professor Rashwani said, “It was our duty to help the people there, a lot of people needed our help, so we went there and forgot about all the bad consequences. We have now started to go to some local councils and help them to put some plans in place for the future. We can at least try to make this region safer and give people some hope.”

The costs of war and conflict between nations and nations between people are often horrendous and often borne by the innocent. Most of the buildings destroyed in the fighting were homes of families and individuals who had nothing to do with the war. Yet still, they are left without homes in their home countries. Having a plan with new methods to guarantee quick reconstruction of these buildings is crucial.

The added benefit of this research is that it is a model that can be applied in other places outside Syria. Syria is simply one country at war right now, and if the path of human history indicates what’s to come, it won’t be the last one either. This research is invaluable for the everyday people ravaged by conflict or disaster, now and in the future.

 

 

 

 

Source Happy Eco News

This robotically fabricated structure aims to promote low carbon construction

Posted on by dishanth
This robotically fabricated structure aims to promote low carbon construction

A team of students and researchers from the University of Michigan have created a robotically-fabricated structure made entirely from timber.
They aimed to promote low-carbon construction, creating a complex architectural structure from local materials.
The designers hope it can serve as an example of how robotic construction can enable more sustainable forms of construction and minimize waste.

A team of students and researchers has shown how, with the help of robots, it’s possible to build an intricate pavilion using only small pieces of timber.

The Robotically Fabricated Structure is the result of a project by the Adel Design Research (ADR) Laboratory at the University of Michigan’s Taubman College of Architecture and Urban Planning.

 

The robotically fabricated structure was built using only small pieces of timber. Image: ADR Laboratory

 

The ambition was to promote low-carbon construction, by showing it’s possible to create complex architectural structures using wood that is sourced from the local region rather than imported.

Custom algorithms were used to calculate the optimal arrangement for the timber 2x4s, removing the need for any larger beams within the structure.

 

Robots assembled the components into a series of prefabricated frames, which were then delivered to site and slotted together by hand.

“The coupling of custom algorithms and robotic fabrication enables the feasible realisation of bespoke building components that are otherwise difficult or costly to achieve through conventional means and methods, with minimal construction waste,” explained ADR, which is led by professor Arash Adel.

“Short elements enable the use of indigenous trees that cannot easily produce full-length building elements, construction and manufacturing off-cuts, and lumber elements reclaimed from the deconstruction of buildings, ultimately contributing to a more sustainable practice,” said the team.

 

The tunnel is made up of 20 robotically fabricated frames. Image: ADR Laboratory

 

Robotically Fabricated Structure has been installed in the Matthaei Botanical Gardens in Ann Arbor, where it can be used as a place of rest and shelter, or host exhibitions and performances.

Raised on an oval-shaped timber platform, it takes the form of a curved tunnel with an integrated bench seat wrapping on of its edges.

The tunnel is made up of 20 robotically fabricated frames, which themselves are made up of various components. Each one is slightly different, which gives the structure its undulating shape.

As each piece of wood has the same thickness, it was possible to design these frames so that they slot together. This helped to reduce the need for screw fixings.

The design is longlisted for Dezeen Awards 2022 in the small building category.

The designers hope it can serve as an example of how robotic construction can enable more sustainable forms of construction and minimise waste.

 

Robots assembled the components into a series of prefabricated frames. Image: ADR Laboratory

 

 

Source World Economic Forum