Re:shell - a sustainable building material developed from discarded eggshells.
South Korea, August 21, 2025
A team of South Korean designers has introduced Re:shell, a biodegradable building material made from discarded eggshells. This material aims to address the significant construction waste problem in South Korea, which generates about 45% of the country’s total waste. By utilizing calcium carbonate from eggshells, Re:shell not only provides strength and durability but also decomposes naturally in soil, presenting an eco-friendly alternative to conventional materials. Future applications may include structural components and enhanced water resistance, aligning with sustainable building practices.
A team of South Korean designers has unveiled a groundbreaking project named Re:shell, a biodegradable building material crafted from discarded eggshells. This new material is designed to combat the rising issue of construction waste in South Korea, which constitutes approximately 45% of the total waste produced in the nation. Re:shell offers a sustainable, eco-friendly alternative to traditional building materials, aligning with the country’s increasing need for environmentally conscious solutions.
The initiative comes as a response to South Korea’s ongoing environmental challenges that have emerged due to rapid industrialization and urban growth since the 1970s and 80s. Given the significant amount of construction waste generated each year, the development of Re:shell presents an innovative approach to minimizing this growing problem.
The team is based in the Living Design Lab at Seoul National University, specifically within the Department of Design. They chose eggs as the primary material for Re:shell due to their abundant supply and the ease of sourcing them from local bakeries and restaurants. The main component of eggshells, calcium carbonate (CaCO₃), provides essential binding and hardening qualities comparable to those of cement.
The production of Re:shell involves several processes, including washing, drying, and grinding the eggshells into a fine powder. This powder is then combined with natural additives to enhance the properties of the final material. Additives under consideration include red clay for improved durability, wheat bran that adds texture, and straw which contributes to flexibility and reduced weight.
Initial strength tests have demonstrated that Re:shell possesses high hardness and durability. One of its standout features is its ability to decompose naturally when buried in soil, thereby ensuring that there is zero residual waste left after its use. This characteristic aligns perfectly with the material’s goal of providing an environmentally friendly alternative to conventional building methods.
The project embodies a design philosophy rooted in the harmony between nature and human needs, drawing inspiration from traditional Korean architecture. The design team has produced various prototypes aimed at different applications, ranging from smaller products to large-scale architecture, including interior partitions and exterior facades.
Future development plans aim to enhance Re:shell’s properties, including the development of water-resistant abilities while still maintaining its 100% biodegradability. There are ongoing explorations regarding its viability as a structural building material, potentially expanding its application beyond traditional construction boundaries.
The design community has reacted positively to Re:shell, and it has been featured as part of a DIY submissions initiative by a prominent design publication, encouraging engagement with readers and fostering a collaborative approach to innovation.
As the need for sustainable construction practices becomes increasingly critical, Re:shell serves as a promising step toward addressing environmental concerns in South Korea’s construction industry. With continued development and community engagement, Re:shell could revolutionize how we think about building materials and waste management.
Re:shell is a biodegradable building material made from discarded eggshells, designed to combat construction waste in South Korea.
The production involves washing, drying, and grinding eggshells into a fine powder, which is mixed with natural additives to enhance its properties.
It is environmentally friendly, biodegrades in soil, and offers a sustainable alternative to traditional building materials.
Re:shell can be used for interior partitions, exterior facades, and potentially as a structural building material in future developments.
The design team is exploring ways to enhance its water-resistant properties while maintaining full biodegradability.
| Feature | Description |
|---|---|
| Biodegradable | Decomposes naturally when buried in soil |
| Modular Design | Consists of interlocking, brick-like elements |
| Sourced from Waste | Made from discarded eggshells, a readily available material |
| Strong and Durable | High hardness, comparable to traditional cement |
| Future Potential | Exploration into structural applications and water resistance |
West of Wolf Pack Park (university campus), August 21, 2025 News Summary Final financing closed and…
, August 21, 2025 News Summary Apex Money Lending Group has broadened its commercial real estate…
Noel, August 21, 2025 News Summary The Noel Board of Aldermen has unanimously appointed Nathaniel Cotton…
Florida, August 21, 2025 News Summary The Florida Legislature has approved HB 7031, establishing new sales…
Columbus, Ohio, August 21, 2025 News Summary Columbus, Ohio, ranks fifth in the nation for apartment…
News Summary LGI Homes has launched Indian River Estates, a new affordable housing development in…