As construction materials costs increase, builders and developers are seeking alternatives to traditional home construction methods to address housing shortages. In response, an expanding construction technology field is the 3D printing sector. This technology promises quicker, cheaper construction and the potential to extrude local and recycled materials. However, due to the slow-changing nature of the construction industry, a radical shift involving large-scale 3D-printing machines on-site and a complete overhaul of the construction process seems unlikely shortly.
Prefabricated 3D printing modular housing offers a compelling solution, providing the benefits of 3D printing advancements while leveraging standard construction machinery and labor. In off-site 3D-printed construction, there is no need to transport massive 3D-printing machines on-site. Instead, components are printed in a controlled environment and then assembled on-site. These types of 3D-printed residential modular kits of parts are already being manufactured and are attracting significant investment.
The idea of a community or public playground is about creating an accessible recreational space for all. However, in many cases, initiating a playground project might fail due to insufficient funds or regulations/restrictions. The first challenge is largely to set the project in motion and, most importantly, get the community’s positive reception and, if possible, its involvement, thus ensuring the project's success and sustainability.
Scenius 26003 / Daryan Knoblauch. Image Courtesy of Concéntrico
From April 25 to May 1, 2024, Logroño hosts the tenth edition of Concéntrico, a celebration of urban innovation and transformation. This year, the festival explores the future of cities, incorporating new formats, engaging diverse audiences, and tackling urban challenges through the lens of time as a catalyst for change in design. Featuring 20 interventions and activities involving over 100 professionals from 17 countries, the program encompasses processes such as renaturalizing public spaces, reimagining urban structures, and integrating recycled materials from previous editions.
Additionally, collaborations with educational centers ensure a lasting impact beyond the festival, fostering new collective practices in public spaces. Special projects with Matali Crasset and Maider López further enrich the festival's engagement with communities across Spain.
For a long time, the construction industry has followed a linear process - extract raw materials, build structures, demolish them, and then dispose of the garbage in landfills. This approach has serious negative effects on the environment and society and is inherently unsustainable. Reconsidering traditional methods and workflows requires support from all stakeholders and a sense of urgency proclaimed by authorities. In the United States, city organizations have begun to implement new policies to keep construction waste out of landfills and support circular practices. Several cities like Seattle and Pittsburgh, have started implementing deconstruction ordinances that require older buildings to be carefully deconstructed rather than demolished. How might their key provisions influence circular practices in the country?
The principles of the circular economy have been most influential and applicable to the construction industry. Emphasizing the efficient use of resources, models around reuse and recycling of components and materials are increasingly being pioneered by global architecture practices. The concept of "design for disassembly" has emerged as an innovative approach especially in the case of building facades. Striking a balance between the demands for new infrastructure and the transition towards sustainability requires a review of traditional facade design throughout its lifecycle.
For decades, our society and the development of our built environment have been strongly associated with intensive extractive processes. While these methods were fundamental to the growth of urban areas, they also laid the groundwork for significant challenges that contemporary generations face today. Nowadays, construction debris accumulates on the peripheries of our cities, and plastic waste floats in the oceans.
In this context, and similarly to the idea expressed by Alvar Aalto, who stated that "modern architecture does not imply the use of new materials, but rather employing existing materials more humanely," it is crucial to reconsider how we manage our resources and waste. This shift in direction provides us with new opportunities to address the challenges that the ongoing climate crisis has brought. In response, various actions are now being taken, using materials such as food waste, recycled wood, and plastic debris, among others, exploring innovations in a context where raw materials are becoming increasingly scarce.
https://www.archdaily.com/1013787/casting-furniture-with-upcycled-plastics-and-urban-debris-los-colados-projectEnrique Tovar
pixel application. Image Courtesy of Rieder Group / Florian Voggeneder
Nowadays, the concepts of reducing waste and upcycling have experienced a remarkable expansion in various fields of architecture, driven by the need to change the paradigm of consumption habits in both society and industry. This wave not only responds to sustainable approaches but has also demonstrated significant benefits in economic terms. Today, the transformation of various resources, from excavated earth to agro-waste and plastics, is being carried out to create new materials, thus consolidating the efficiency and feasibility of more environmentally friendly practices.
Within this context, technology and data have contributed significantly to a better understanding of materials and to exploring new processing methods. In this regard, artificial intelligence has become a valuable ally. In addition, innovations in software have made it possible to maximize the potential of what was previously considered waste. Correspondingly, Rieder has introduced a product innovation named pixel, aimed at minimizing waste in the production of facade elements constructed from glass fiber-reinforced concrete.
https://www.archdaily.com/1012597/transforming-waste-into-pixels-of-glassfiber-reinforced-concreteEnrique Tovar
3D printing holds vast potential due to its ease of large-quantity manufacturing, its flexibility in terms of material exploration, and its ability to materialize all kinds of geometries. This year, architects and designers have looked at 3D printing technology to decarbonize construction materials, integrate contemporary aesthetics with traditional construction methods, and add a layer of craft and artistry to interiors and facades.
Innovative materials play a crucial role in shaping the future of architecture. They offer not only novel ways to craft buildings but also sustainable and efficient solutions to address pressing environmental challenges. Architects and designers are now more than ever exploring and integrating innovative materials into their projects. By harnessing the unique properties of these materials, they create structures with new visual languages while also being environmentally friendly.
As part of our year-in-review, we reflect on the innovative materials that were featured. These materials delved into the concepts of recycling agro-waste, adapting bio-based products, transforming local materials, and decarbonizing concrete. The objective was not only to offer alternatives to traditional construction practices but also to help reduce carbon emissions and promote a more sustainable built environment. In this dynamic field, these materials demonstrate the potential to revolutionize building design and construction in diverse contexts, paving the way for a more sustainable and resilient future.
The built environment is responsible for approximately 42% of annual global CO2 emissions. During a building's lifespan, half of these emissions come from its construction and demolition. To decarbonize architecture and control global emissions, it is important to rethink and reduce the upfront or embodied carbon impacts of demolitions, as well as implement sustainable construction strategies for buildings. Demolitions typically involve dismantling, razing, destroying, or wrecking buildings and structural parts, leading to unsustainable levels of carbon emissions, material depletion, waste, and pollution. These hasty methods of ending the life cycle of a building have negative impacts on the environment, material components, and recycling strategies. Therefore, there is a clear need to re-think the way in which we approach the end of a building or infrastructure project's life towards a more sustainable system of deconstruction.
Two years ago, on September 18, 2021, Christo and Jeanne-Claude's L'Arc de Triomphe, Wrapped, 1961–2021, was inaugurated. The monumental public artwork wrapped the Parisian monument in over 25,000 square meters of silvery fabric tied in place with 7,000 meters of red rope. The materials, all made out of woven polypropylene, a type of thermoplastic, are now being reused, upcycled, and recycled, following the artists’ vision. Most of the materials will be transformed to serve practical uses for future public events in Paris. The Christo and Jeanne-Claude Foundation is also collaborating with Gagosian to bring Christo’s early works to London’s East End for an exhibition open from October 6-22, 2023.
Working within the restrictions of a limited carbon footprint can be one of the hardest – but also most rewarding – parts of a modern architect’s role. Whether to suit a large multinational corporation’s sustainability report, to achieve LEED status or similar for a commercial developer, or to build an eco-home for a climate-conscious private client – or even one who just wants to spend less on energy, it’s imperative to keep up-to-date with the latest carbon-neutral and low-carbon building practices and materials.
Whether looking at a project’s structural beginnings, its high-grade finishes, or thinking more holistically about its entire lifetime, there are huge gains to be made with sustainable substitutes and alternatives to traditional materials and techniques.
The role and relationship of furniture in architecture and space design are of great relevance. Designers such as Eileen Gray, Alvar Aalto, Mies Van der Rohe, and Verner Panton conceived furniture —primarily stools and chairs— that endure over time as powerful and timeless elements, with a determining impact on the interior atmosphere. Thus, the relationship between furniture and space becomes a constant dialogue in which design, aesthetics, and materials contribute their dimension.
Today, furniture should not be limited solely to fulfilling an aesthetic and functional role, but should also have a purpose in the context of contemporary design and sustainable development. It is essential to reflect on and question the processes and choice of materials in the manufacturing of these elements, in addition to the value they bring to interior spaces. In this context, HEWI has taken a step forward by creating the Re-seat family, consisting of stools and chairs made from post-industrial recycled materials (PIR), sourced in part from the processes of the company itself and a regional supplier, both based in Bad Arolsen, Germany. It also features integrated solutions with universal design in mind, making a statement in favor of innovation and eco-design.
https://www.archdaily.com/1007326/re-purposing-materials-from-post-industrial-recyclate-to-accessible-furnitureEnrique Tovar
When transparent facade elements deliberately evolve from the course of the sun, we can explore a fascinating slow movement in stark contrast to the hectic urban street life on the ground. Especially the French designer Pierre Brault has responded to the accelerated rhythm of our society with facade installations that combine the principle of the sundial with colorful pop design. His three-dimensional works made of recycled colored plexiglass mesmerize through simple but dramatic movements of colored shadows. In the interview, Brault explains his inspiration, the experimental approach and his interest in working responsibly with material.
“Our planet is choking in plastic,” states the United Nations. While the man-made material has many valuable uses, our addiction to single-use plastic products has led to severe economic, health and environmental issues. Roughly one million plastic bottles are purchased every minute, and five trillion plastic bags are used every year worldwide –used just once, then thrown away. Plastics and microplastics have found their way into every corner of our natural environment, from the peaks of the highest mountains to the depths of the deepest oceans. So much so, that they have become part of the Earth’s fossil record and created an entirely new marine microbial habitat known as the “plastisphere.”
According to a survey by the Brazilian Association for Recycling of Construction and Demolition Waste (ABRECON), there has been an increase in the recycling of construction and demolition waste (C&D) in Brazil in recent years. According to the 2015 report, 21% of the total C&D was recycled in the country that year, while in 2013 the rate was 19%.
The outlook is promising but not yet ideal, and the growth of recycled C&D materials is still considered small. In Brazil, construction waste can represent between 50% and 70% of the total municipal solid waste. This means, we still need to advocate for a more common practice of material recycling and reuse in architecture, especially in Brazil.
The construction industry's future will undoubtedly include "carbon reduction" as a mandatory task. Aside from locally sourced, virgin materials, an increasing number of new materials are becoming available. New materials can be developed in several ways, including low-carbon substitution, recycling, performance enhancement, and 3D printing. New materials will not only be more environmentally friendly and enable new construction methods, but they will also influence the starting point and direction of design concepts, resulting in new buildings with new perceptions and spaces.
.jpg?1600352094 "Flamboyant Residence / Perkins+Will. Image: © Nelson Kon")
