CORNCRETL: A Bio-Based Construction Material from Corn Waste
MANUFACTURA established CORNCRETL as a bio-based construction product that combines corn byproducts, recycled nejayote, and lime-based aggregates to reduce carbon emissions and present circular economy principles into the structure market.
Mexico’s construction sector faces considerable ecological and social difficulties. The extensive usage of carbon-intensive products has positioned the market as a significant contributor to nationwide CO ₂ emissions. At the very same time, building and construction labor conditions remain unstable, with limited access to technical training and high occupational risk. CORNCRETL, established by MANUFACTURA, proposes a circular product method that attends to both environmental effect and production designs within the structure industry.
CORNCRETL is a bio-based construction material derived from limestone aggregates, corn residues, and recycled nejayote, the calcium-rich wastewater produced during the nixtamalization of corn. The research study integrates references to pre-Hispanic Mayan construction methods with robotic 3D printing technologies. Compared to traditional concrete, the material achieves up to a 70 percent reduction in carbon emissions while operating within a circular economy framework.
all images by Dinorah Schulte MANUFACTURA links Corn Byproducts and Lime Construction Corn has shaped Mexican society for more than 7,000 years, influencing farming systems, settlement patterns, and cultural identity. Archaeological findings in Tehuacán, Puebla, trace its early domestication, and various Mesoamerican civilizations integrated corn into their financial and spiritual structures. Today, Mexico stays one of the world’s leading corn producers. Nevertheless, food waste represents a substantial issue, with around 38 percent of production lost annually. Tortillas represent nearly 30 percent of this waste. The valorization of corn by-products, consisting of nejayote, presents both environmental and economic opportunities.
Generally disposed of, nejayote consists of calcium substances and natural residues that can be recycled into building and construction inputs. CORNCRETL integrates these residues with Geocalce T, a mineral-based aggregate made up of natural hydraulic lime (NHL 3.5), geobinders, river silica sand, dolomitic limestone, and Carrara marble powder. This formula establishes a dialogue between Mexican farming byproducts and Italian mineral products, reflecting cross-cultural partnership in product advancement.
Lime-based building and construction has historical precedent in Mesoamerica. Referred To As Sak-Kaab (‘White Earth’) in Mayan culture, lime mixtures such as sascab were valued for breathability, sturdiness, and environmental compatibility. CORNCRETL by Mexico-based design practice MANUFACTURA reinterprets these properties through modern fabrication. Unlike Portland cement, lime-based systems harden at space temperature level and require lower calcination temperatures, lowering energy usage and greenhouse gas emissions. Lime materials also provide humidity regulation and self-healing qualities for small surface fractures.
CORNCRETL is a bio-based building and construction material established by MANUFACTURA Robotic 3D Printing utilizes Corn-Based Lime Composites The fabrication process was optimized for robotic 3D printing. Nixtamal waste was gathered, dried, shredded, and crushed to attain a constant particle size ideal for extrusion. The material was then mixed with mineral aggregates and organic binders to produce a printable mix. Printability tests were carried out using a WASP Concrete HD Constant Feeding System incorporated with a KUKA robotic arm. 3 wall models were printed at varying scales and treated at room temperature for 2 to 3 days.
Additive production removes the need for standard formwork, minimizing material waste by as much as 90 percent while allowing geometric accuracy. Throughout the WASP Residency 2025 in Massa Lombarda, Italy, research focused on refining the mix and screening scalability for architectural applications. Structural assessments evaluated compressive performance and product use per linear meter. Modular wall panels measuring 40 cm, 60 cm, and 80 cm in height were established as potential elements for light-weight, affordable real estate systems. The wall geometries referenced terrazzo concepts from Rimini, demonstrating the product’s capacity for pattern, curvature, and non-rectilinear forms. By combining agricultural waste streams, lime-based mineral systems, and robotic fabrication, CORNCRETL positions bio-based construction as both a technical and cultural proposal.
The task frames building and construction as a website of product recovery and technological adaptation. Through the combination of ancestral lime knowledge, corn by-products, and digital manufacturing, CORNCRETL proposes an alternative path for sustainable structure practices in Mexico, highlighting lowered emissions, circular resource streams, and scalable housing applications.
the fabrication procedure was optimized for robotic 3D printing the mixture incorporates natural hydraulic lime, silica sand, dolomitic limestone, and marble powder CORNCRETL integrates limestone aggregates with agricultural waste streams the product lowers carbon emissions by up to 70 percent compared to standard concrete
CORNCRETL proposes a circular economy design for the structure market additive manufacturing reduces product waste by eliminating formwork
modular panels were established for light-weight, low-priced real estate applications the material integrates corn residues, recycled nejayote, and lime-based aggregates corn has shaped Mexican farming and settlement patterns for over 7,000 years the valorization of corn byproducts, consisting of nejayote, provides both environmental and financial opportunities
CORNCRETL integrates agricultural byproducts, lime chemistry, and digital fabrication into a scalable construction system job
information: name: CORNCRETL designer: MANUFACTURA|@manufacturamx
lead designer: Dinorah Schulte
task director: Edurne Morales
senior computational designer, 3D printing development: Andrea Menardo/ Zeitgeistructures
structural engineer: Jorge Armando/ TAKO KWEEN + TLAXCALLI
product donator: WASP 3D Industrial Partners
photographer, videographer: Dinorah Schulte, WASP 3D
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edited by: christina vergopoulou|designboom