Archinect - News

Iceland will flow into 2025 Venice Architecture Biennale with 'Lavaforming' pavilion

2024-10-31T10:49:00-04:00

Lava will shape Iceland's official entry Lavaforming at the 2025 Venice Architecture Biennale, showcasing how its density and other natural properties can become a viable future building material for designs as far-ranging as small residential structures, cityscapes, and more.

Image render courtesy s.ap architects

Arnhildur Pálmadóttir, founder of the s.ap architects, is responsible for the curation of the pavilion’s story arch, which is set in the year 2150. She says: "Lavaforming is exploring a building material that has never been used before. The theme is both a proposal and a metaphor – architecture is in a paradigm shift, and many of our current methods have been deemed obsolete or harmful in the long term. In our current predicament we need to be bold, think in new ways, look at challenges, and find the right resources."

Image render courtesy s.ap architects

Iceland Design and Architecture director Halla Helgadóttir says also that this presentation has the potential to "draw a...

Meta announces investment in low-carbon concrete production plants

2024-10-29T17:47:00-04:00

Last month, Meta (Facebook’s parent company) announced its plans to invest in the California-based concrete manufacturer CarbonBuilt on a new line of low-carbon products called Reversa.

The product is said to offer carbon footprint reductions of up to 70% compared to the current industrial baseline. Data centers will ultimately become the recipients of the product innovations. This comes as the technology giant is in the midst of a year in which it anticipates spending $37 billion on the booming building typology.

Meta's Head of Clean Technology Innovation John DeAngelis said: “Meta is prioritizing a multifaceted approach to accelerating decarbonization in hard-to-abate sectors like concrete. Our collaboration with CarbonBuilt will help them to deliver a step change reduction in emissions with a clear near-term path to scale. Accelerating the deployment of these types of solutions is critical for driving deep decarbonization and we hope this collaboration can help pave the path fo...

Cemex, Turner, Microsoft and others sign on to White House pledge to use clean construction materials

2024-10-21T12:32:00-04:00

The White House recently announced an update in its efforts to bolster clean construction in the United States. The update lists various public and private entities that have now committed to its three-year-old Federal Buy Clean Initiative. Some companies mentioned in the press release as signing on include Cemex, the Turner Construction Company, Amazon Web Services, and Microsoft. The City of Los Angeles, New York State, Washington State, and Michigan are among the five new participants in the Federal-State Buy Clean Partnership.

New York City is also expected to begin requiring environmental product declarations for concrete and steel products, according to the website POLITICO E&E News. The White House says to date, the federal government has deployed some $4.5 billion from the Inflation Reduction Act to support the Initiative.

Claim: NEOM will consume one-fifth of the world's steel to complete construction

2024-10-18T18:37:00-04:00

A surprising new claim about the amount of steel being used to construct NEOM’s new The Line megacity and other satellite developments is being advanced by several regional outlets, which claim the amount equals one-fifth (20%) of the world's current steel production.

The claim was first published by the website Arabian Gulf Business Insight on Monday after NEOM's chief investment officer told the outlet about its forthcoming status as "the world’s largest customer for construction materials" for possibly dozens of years.

It comes after the announcement of new concrete production facilities across the country that augment construction of the more than $500 billion plan. The Line's initial phase of construction has been reduced to span just 2.4 kilometers (1.5 miles) by the end of the decade.

ETH Zurich researchers develop robotic process for impact printing earth materials

2024-09-23T12:32:00-04:00

Researchers at ETH Zurich have introduced a new robotic 3D printing method for cement-free low-carbon materials for a circular economy.

Using a technique called 'impact printing,' the team demonstrated a mixture of excavated materials, silt, and clay that was less dependent on additives for its structural strength due to the high-velocity deposition process. Their aim was to "increase the cost competitiveness of sustainable building materials through efficient and automated production."

Image: Girts Apskalns. Copyright: ETH Zurich - Gramazio Kohler Research, Chair of Sustainable Construction and Robotic Systems Lab

First, a custom printing tool was developed that can be integrated on multiple high-payload robotic platforms. The tool was then integrated with a high-payload Gantry system within the ETH's Robotic Fabrication Laboratory. The hardware is also compatible with an autonomous legged excavator system called HEAP, also developed by the Robotic Systems Lab. It has shown...

Diller Scofidio + Renfro partners with biotech company on OXYA green product line

2024-08-26T17:50:00-04:00

Diller Scofidio + Renfro (DS+R) is the first American firm to partner with biotech startup Pneuma Bio on a new product line of carbon-sequestering materials made from microorganisms such as algae that can be used in commercial architecture and residential buildings. Their OXYA product line was born out of years of materials research that began at North Carolina State University and continues through a collaboration between the University of Sheffield and the VTT Technical Research Centre in Finland.

A press release states: "Over the next 15 months, the company will cover 15 buildings with OXYA through partnerships with DS+R, hotel chains, and paint manufacturers. Across these building spaces, the materials are proving quite versatile and are being used to cover walls (as liquid wallpaper or paint), windows, fabric for covering furniture, light fixtures & chandeliers, among other things."

EPA presents 'buy clean' label program for green construction materials

2024-08-13T20:31:00-04:00

The Environmental Protection Agency has published details of a new label program aimed at increasing the amount and quality of more sustainable U.S.-made construction materials in the marketplace. It supports the agency’s new $160 million grant initiative to spearhead new Environmental Product Declarations (EPDs). The labels will add a formal definition of what constitutes “clean” construction materials in support also of the Biden Administration’s Federal Buy Clean Initiative, which was first formed in February of 2022.

Specifically, the EPA says the program will "prioritize steel, glass, asphalt, and concrete, as there are significant opportunities to reduce climate pollution from these materials, and they represent the vast majority of construction materials and products that government agencies purchase with federal funds."

An associated list of supporting documents, including EPD development guidelines, is available here.

German researchers discover carbon sequestering concrete additive made from cyanobacteria

2024-07-29T19:37:00-04:00

Researchers from Germany's Fraunhofer Institute have discovered a new bioconcrete solution made using cyanobacteria (formerly known as blue-green algae) that sequesters carbon through a process of photosynthesis. Their work for the “BioCarboBeton” project examined the potential of stromatolites to be used as an additive in traditional concrete mixtures, finding success after mimicking their natural binding processes by using a new technological method.

The project, which aims to scale up production for commercial uses, also found potential applications in insulation material, brick, formwork filling, and even mortar.

Take a look also at similar SOM and Drexel University-led material research for concrete and concrete alternatives that we published in the past year.

Burning down the house to make American homes disaster-proof

2024-07-21T11:00:00-04:00

Last year's devastating wildfires in California and Hawaii once again came into focus as part of a New York Times exposé on the Insurance Institute for Business & Home Safety (I.B.H.S.)-led movement towards the “biggest overhaul of building standards in more than 30 years.”

Burn demonstrations help visualize protective interventions that best resemble moats in unison with better building materials. The Times says: “The message to homebuilders is stark: Homes in certain parts of the United States must now be constructed with wildfires in mind, or they most likely will not be insured, which would mean they couldn’t be bought with a mortgage.”

Landscape designers as well as architects working on private residences will be equally affected. The MIT Technology Review wrote more extensively on the subject of design and the disaster-proof home in California last April.

A lack of product standardization is hindering mass timber’s growth in North America, expert warns

2024-07-15T11:43:00-04:00

Product standardisation—or the lack thereof—is a major obstacle to mass timber adoption, especially in the lower-rise and mid-rise “sweet spots.” It comes as Europe is miles ahead of North America (Asia-Pacific, Australia, and New Zealand) in developing mainstream mass timber systems.

“They [North America] have a mature market where woodworkers and integration shops work alongside billet producers to service the market,” Adrian Mitchell told the outlet. “It is not about whose panel size got designed by the engineer into a project from the start, giving that manufacturer an advantage because no one else produces that panel size, which is happening here.”

Nevertheless, an increase in demand within the U.S. has led to forecasts that the total domestic market, which was valued at $179.4 million last year, will reach $655.6 Million by 2032, according to Yahoo! Finance.

Princeton University researchers develop tougher cement inspired by shells

2024-06-13T14:48:00-04:00

Engineers at Princeton University have developed a new cement composite, inspired by the material found within certain shells, that is 17 times more crack-resistant than standard cement and 19 times more able to stretch and deform without breaking.

The research team was led by Reza Moini, an assistant professor of civil and environmental engineering. In a recently published article in the journal Advanced Functional Materials, the team reported that creating alternating layers of tabulated cement paste and thin polymer can significantly increase the material’s durability.

Often looking towards biology for inspiration in their work on building materials, the researchers were drawn to a natural material called nacre, also known as mother of pearl. The material is produced by some molluscs as an inner shell layer, and it is also the material that pearls are made of. According to the researchers, nacre consists of a hard mineral called aragonite, which are glued together by a soft bio...

Swedish companies unveil low-carbon wall system 60% lighter than traditional concrete

2024-03-15T12:45:00-04:00

A group of materials companies in Sweden has collaborated on a hybrid wall element with a lower carbon footprint than conventional concrete wall elements.

The joint venture, comprising concrete element manufacturer Heidelberg Materials Preca and engineered timber manufacturer Metsä Wood, is now rolling out the element for live construction projects.

Image credit: Heidelberg Materials Preca / Metsä Wood

The wall consists of a facade element in a sandwich construction with an outer layer made of 'climate-improved' concrete, intermediate insulation, and a load-bearing inner panel made of strong, material-efficient laminated veneer lumber. According to the group, the wall module has approximately 30–50% less of a climate impact than an equivalent traditional concrete wall while also being 60% lighter.

Image credit: Heidelberg Materials Preca / Metsä Wood

To test the wall, the team constructed a home using the elements. The structure was equipped with moisture sensors to monitor the wall ...

Researchers look at the possibilities of wood fly ash by-products as an alternative in rammed earth construction

2024-03-02T08:00:00-05:00

New findings published in the journal Construction and Building Materials from a team of materials researchers working at the University of British Columbia Okanagan's School of Engineering have demonstrated the sustainable qualities of using wood fly ash by-products as alternatives to traditional concrete additives.

The study was undertaken in light of some recent popularity of rammed earth construction in the architectural field, an ancient form of building whose mastery has propelled the 2022 Pritzker Prize winner Diébédo Francis Kéré and several others to prominence parallel with the industry's fight against climate change.

"Everything old is new again and that is precisely why we've been investigating rammed earth construction," Dr. Sumi Siddiqua explained to the UBCO news outlet. "There is an increasing demand for sustainable building products here in Canada and around the world, and materials like fly ash are just the start of a new and important trend."

Siddiqua’s team was...

Researchers use cellulose and algae to create 3D printed architectural material

2024-02-09T13:46:00-05:00

Researchers at Chalmers University of Technology in Sweden have published their study into how materials made from nanocellulose and algae can be used as sustainable architectural materials. The research, conducted in collaboration with the Wallenberg Wood Science Center, “shows how the abundant sustainable material can be 3D printed into a wide array of architectural components, using much less energy than conventional construction methods,” according to the team.

Nanocellulose, molecules consisting of hundreds or thousands of carbon, hydrogen, and oxygen atoms, are already used in biomedicine to 3D print scaffolds for tissue and cell growth but have never been used in an architectural material. The researchers, therefore, mixed nanocellulose fibers and water with an algae-based material called alginate to produce a 3D printable material with architectural uses in mind.

“For the first time...

Construction input prices drop again for December, driven by declines in all sectors

2024-01-16T14:43:00-05:00

The latest Associated Builders and Contractors (ABC) construction input price analysis for the month of December has registered a 0.6% decrease over November’s trend-reversing totals. Nonresidential construction input prices were down another 0.4%, with the commercial and multifamily sectors declining by 0.2% and 0.5%, respectively.

Overall construction input prices are now 1.2% higher than a year ago, and nonresidential construction input prices are another 1.6% higher. The price of softwood lumber has notably fallen by 14.6% in a 12-month span, joined by a substantial decline in the price of natural gas, which was down some 60.5% in the same time period.

Chart credit: Associated Builders and Contractors

“Construction input prices fell sharply in December,” ABC’s Chief Economist, Anirban Basu, said in a news release. “While plunging oil prices are the primary factor behind the sharp decline, most input prices were tame in 2023’s final month. That serves as a fitting end to a year du...

Drexel team uses bacteria to create self-healing concrete

2023-12-29T11:40:00-05:00

A team from Drexel University has published their research into a self-healing system for concrete. The team, operating in the University’s College of Engineering, embedded bacteria in their concrete system that, when activated by water, can repair cracks in the concrete.

Named ‘BioFiber,’ the Drexel system sees a polymer fiber encased in a bacteria-laden hydrogel and a protective, damage-responsive shell. A grid of BioFibers embedded in a concrete structure can improve the system’s durability, prevent cracks from growing, and enable self-healing, according to the research published in the journal Construction and Building Materials.

The team was inspired by the ability of human skin tissue to self-heal, and the ability of vascular systems to help organisms heal their own wounds. The team identified a strain of Lysinibacillus sphaericus bacteria as a bio-healing agent for the fiber, which is found in soil and can produce a stone-like material capable of healing exposed cracks in con...

Architecture's top green projects and sustainability innovations in 2023

2023-12-27T20:28:00-05:00

Wrapping up a year in the wake of the recently concluded COP28 UN climate summit that resulted in, well, mild levels of agreement on the role of fossil fuels, it is possible to sense a slightly increased urgency toward this most pressing planetary issue on a high-minded diplomatic level. As we're quickly approaching the quarter mark of the 21st century, however, much more concrete action and innovation in various sectors of the AEC domain is needed — and is already happening — on the ground level as well, as we have seen in our reporting on Archinect.

Continuing with our 2023 Year in Review series, let's take a look back at some of the story highlights focusing on decarbonization efforts, material research, policy implementation, and successful applications of sustainability principles this year.

Building Electrification

Energy-efficient heat pump technology is gaining in popularity. Image courtesy Wikimedia Commons user Øyvind Holmstad.

The process of gradually phasing out fossil f...

Better green materials are still needed to trigger a revolution in the building sector, experts say

2023-12-14T13:56:00-05:00

Repeated calls for the decarbonization of architecture are sometimes met with criticisms as to their lack of substance, and in some cases, practicality or overall feasibility, Canada's National Observer tells us.

The only mycelium binders on the market are, for example, unsuitable to certain weather conditions, according to Yale Center for Ecosystems and Architecture’s Mae-ling Lokko. Other products like composite wood materials can contain formaldehyde, which puts a damper on the new heights mass timber designs are reaching in Europe and North America. The current limitations of bio-concrete, hemp, and algae materials are also well-known.

To enact a truly revolutionary turn, both additional investments into developing new alternative products and a better understanding of a building’s end-of-life recyclability are needed, Lokko and Naomi Keena of McGill University's School of Architecture told the paper.

Canada and its vast reserves of agricultural waste derived from applicable c...

University of Maryland researchers develop 'cooling glass' that can redirect a building's heat into space

2023-11-17T11:54:00-05:00

Researchers aiming to combat rising global temperatures have developed a new 'cooling glass' that can turn down the heat indoors without electricity by drawing on the cold depths of space. The new technology, a microporous glass coating, can lower the temperature of the material beneath it by 3.5 degrees Celsius at noon, and has the potential to reduce a mid-rise apartment building's yearly carbon emissions by 10 percent.

The technology was developed by a research team at the University of Maryland, led by Distinguished University Professor Liangbing Hu in the Department of Materials Science and Engineering. The coating functions by reflecting up to 99% of solar radiation to prevent buildings from absorbing heat. It emits heat in the form of longwave infrared radiation into space. The phenomenon is known as radiative cooling, in which space serves as a heat sink for the buildings.

According to the research team, their glass is more environmentally stable than previous attempts at cooling coatings. The glass can be applied to a variety of surfaces, such as tile, brick, and metal, which makes it scalable and available for wide use. The researchers envision the new material as a key contributor to the solution to climate change due to its potential to reduce a structure’s energy usage and carbon footprint. The team is now working to further test the glass and understand its practical applications.

...

October sees construction costs decline

2023-11-16T17:28:00-05:00

A new Associated Builders and Contractors (ABC) analysis of statistics provided by the U.S. Bureau of Labor Statistics Producer Price Index data has shown a slight decline in construction input prices of 1.2% for the month of October.

Per ABC’s analysis, Construction input prices are 1.1% lower than a year ago, while nonresidential construction input prices are recorded as being another 0.7% lower. Prices fell in 2 of the 3 energy subcategories last month, propelled by a drop in crude petroleum input prices of 2.9%. Unprocessed energy materials were also recorded to be down 0.3%, while natural gas prices rose 10.9% in October. Iron and steel prices also fell by 2.3% on the month overall.

Only inputs to Industrial projects and multifamily housing construction was shown to have risen year-over-year, according to the ABC.

“The October construction materials prices report should be cheered by most contractors,” ABC Chief Economist Anirban Basu said of the report. “Yesterday’s Consume...

Provencher_Roy uses recycled glass material to complete Darwin Bridges reconstruction in Montreal

2023-11-02T13:45:00-04:00

Provencher_Roy has shared photos following the firm’s completion of a bridge reconstruction project in Nuns’ Island, Montreal.

The new Darwin Bridges makeover represents the first instance of Ground Glass Pozzolan (GGP), a recycled glass product developed with researchers from the Université de Sherbrooke and the City of Montreal, being used in an architectural design worldwide.

The project succeeded in reducing greenhouse gas emissions by 44 tons, while using over 88,000 pounds of locally sourced recycled glass (the equivalent of 70,000 wine bottles). A green space was enacted in a void created by removing the existing central median strip, and safety lighting has been installed to prevent tunnel sensation.

Image © Stephane Brugger

“The concept was always there, but the design and construction standards of the time favored the automobile. For this project, we were therefore working in a paradoxical 1960s context, on an innovative urban project to improve the user experience, while a...

SOM unveils new algae-based Bio-Blocks technology at the Chicago Architecture Biennial

2023-09-29T14:01:00-04:00

Skidmore, Owings & Merrill (SOM) has debuted a new concrete alternative material as part of its participation in the fifth Chicago Architecture Biennial (CAB 5), which is taking place now through February 11th at multiple locations citywide.

The firm’s Bio-Blocks technology is being presented as a replacement for traditional Concrete Masonry Units (or CMUs) and can reduce emissions on a project by up to 8% if used at scale. The blocks were fabricated with help from Prometheus Materials using microalgae that were then subject to the company’s patent-pending photosynthetic biocementation process. The results seen therein offer a one-metric-ton total offset, according to the product team.

Displayed in a spiral construction courtesy of the International Masonry Institute and J&E Duff, Inc., in The Mews space at their 167 Green development in the city’s Fulton Market District, the product demonstrates its future potential as a building...

Hike in fuel costs drives first increase in construction input prices in six months

2023-09-18T08:00:00-04:00

Construction input prices ticked up 1.5% in August, the first increase in six months, due to a surge in energy costs, according to a new Associated Builders and Contractors’ analysis of U.S. Bureau of Labor Statistics Producer Price Index data released Thursday.

These readings come as a shock as the flattening of costs suggested that inflation was cooling. According to a separate analysis from the Associated General Contractors of America, a major increase in diesel fuel costs in August drove the overall increase in materials prices. The producer price index jumped 34.6% last month, which is the largest one-month hike since 1990. In addition, other construction materials such as concrete and switchgear also experienced price increases.

Associated Builders and Contractors (ABC) chief economist Anirban Basu expects future readings to demonstrate excess inflation as labor costs continue to rise, aggressive spending continues, oil-producing nations limit output, and global supply chains reorganize.

MIT researchers create strong, ultra-light architected materials using kirigami techniques

2023-08-24T14:02:00-04:00

Researchers at MIT have developed a lightweight architected material inspired by the cellular structures found in natural materials such as honeycombs and bones. Produced with techniques borrowed from the Japanese kirigami paper-cutting technique, the strong metal lattices are lighter than cork while also holding customizable mechanical properties.

Image courtesy of the researchers via MIT

Using kirigami techniques, the MIT team led by Professor Neil Gershenfeld of the Center for Bits and Atoms has produced plate lattice structures on a larger scale than was previously possible. The structures are described as "steel cork" by Gershenfeld due to their lightweight nature combined with high strength and stiffness.

“To make things like cars and airplanes, a huge investment goes into tooling. This manufacturing process is without tooling, like 3D printing. But unlike 3D printing, our process can set the limit for record material properties,” Gershenfeld said in a statement.

Image courtesy...

University of Michigan researchers detail new 3D printed upcycled sawdust material for formwork

2023-08-22T13:09:00-04:00

A recyclable alternative material developed by researchers at the University of Michigan Taubman College of Architecture and Urban Planning’s Digital Architecture Research & Technology (DART) Laboratory is providing builders with a more sustainable way of applying concrete casts in the construction process in order to cut down on waste and the environmental impact of projects using the method.

The fully biodegradable BioMatters material is made from sawdust that’s collected and used via robotic 3D printing in the formwork of buildings, an essential element that currently constitutes 40% of all concrete-related construction expenses industry-wide, according to DART.

Image courtesy Tharanesh Varadharajan, Zachary Keller, Muhammad Dayyem Khan/DART Lab

"Other sawdust-based solutions are using other petroleum-based polymers — we use biopolymers which are completely decomposable," DART researcher Muhammad Dayyem Khan said, adding that the formwork, once the concrete has cured, can be full...

Leveling construction material costs and supply chain relief may signal inflation cooling, new report finds

2023-08-14T16:55:00-04:00

The latest Associated Builders and Contractors (ABC) analysis of U.S. Bureau of Labor Statistics Producer Price Index data indicates that increasingly stable construction materials prices and recent supply chain improvements over the past few months may signal "positive economic outcomes" within the United States, Construction Dive reports.

"Goods prices continue to stagnate in the context of improved supply chains and a sluggish global economy," ABC Chief Economist Anirban Basu explained in the analysis. "It has been the improvement of supply chains that best explains recent positive economic outcomes in the U.S. economy. As supply chains have normalized, unmet demand has been more readily satisfied. That has propelled transactional volume and economic growth."

Image source: U.S. Bureau of Labor Statistics via the ABC (Aug 2023).

"At the same time," Basu continued, "the improved supply chain has helped push prices lower, contributing to the disinflation observable both in yesterday’...

Stanford research explores using plastic waste in construction

2023-07-28T14:20:00-04:00

Stanford University has published new research exploring the use of plastic waste in constructing roads and buildings. The research project, funded by the National Academies of Sciences, Engineering, and Medicine (NASEM), identified that recycled glass fiber-reinforced polymer composite – a tensile plastic used extensively in car, boat, and plane parts – shows potential for repurposing in building applications.

The team, led by Stanford engineers Zhiye Li and Michael Lepech, incorporated computer modeling, scientific research, field data, and stakeholder interviews in their research, which was recently published in a white paper. They studied real-world applications such as the utilization of plastic waste for façade panels in the San Francisco Museum of Modern Art and pavement in a California Department of Transportation road project.

The research highlighted significant challenges in existing p...

Minneapolis’ attempt to curtail EIFS cladding is causing pushback from architects and builders

2023-07-24T18:37:00-04:00

These kinds of guidelines cite “sustainability,” but miss a larger point about housing in Minneapolis. While it’s true that some types of texture and massing look “cheaper” than others, there are legitimate questions about whether or not newer types of building materials — EIFS, metal cladding, and the like — are more climate friendly and affordable than other materials that seem more traditional.

EIFS (aka “synthetic stucco” or “Exterior Insulation Finishing Systems”) are but one material in the proposed bans put forth by city planning officials in Minneapolis recently in an attempt to formalize a set of 2014 guidelines.

EIFS capabilities have advanced beyond a widely-known early design flaw, namely their proneness to water infiltration, and could now be an inexpensive but vital weapon for builders in the effort to deliver housing rapidly to the city’s beleaguered market.

Termite mounds hold secrets for energy-efficient buildings, researchers find

2023-05-30T10:58:00-04:00

Researchers have uncovered a methodology for reducing energy consumption in buildings by studying the structure of termite mounds. Led by Lund University’s Dr. David Andréen and Nottingham Trent University’s Dr. Rupert Soar, the research suggests that the properties of lattice networks in termite mounds, known as an ‘egress complex,’ can be copied to optimize the interior climate of buildings.

“Here we show that the ‘egress complex’, an intricate network of interconnected tunnels found in termite mounds, can be used to promote flows of air, heat, and moisture in novel ways in human architecture,” said Andréen about the study, which was recently published in Frontiers in Materials.

Image credit: Dr. David Andréen

The team grounded their research in the egress complex of Macrotermes michaelseni termites in Namibia, which they observed appeared to promote moisture regulation and ventilation. The mounds are regarded as some of the world’s largest biological structures, capable of reachin...

Baking soda may help concrete absorb carbon, MIT researchers find

2023-04-11T11:54:00-04:00

New research from MIT has found that adding sodium bicarbonate, otherwise known as baking soda, to concrete mixtures may make a significant dent in the material’s carbon footprint. The findings, published recently in the journal PNAS Nexus, also suggest that the addition of sodium bicarbonate may accelerate construction times through quicker concrete setting.

The research was led by MIT professors of civil and environmental engineering Admir Masic and Franz-Josef Ulm, MIT postdoc Damian Stefaniuk, doctoral student Marcin Hajduczek, and James Weaver from Harvard University’s Wyss Institute. With concrete production accounting for approximately 8 percent of global carbon dioxide emissions, and concrete being the world’s second most consumed material after water, the team sees innovation in the material’s environmental performance as being a key component to reducing global greenhouse gas emissions.