Pavilion MANAL

Pavilion MANAL is an exhibition space, a proof of concept, a precursory project combining sustainability and circularity – thus challenging the status quo of construction materials. It showcases the first structural application of Oxacrete Oulesse® concrete, Oxaras cement-free, low-CO₂ alternative. In combination with stabilised poured earth Oxacrete® Nossim and Oxabloc compressed earth blocks - made with Oxabrick® Loko-, the pavilion explores the potential of using Oxara’s cement-free materials alongside conventional ones, aiming to minimise the use of emission-intensive materials.

Oxacrete Oulesse® concrete is used for the foundations and load-bearing columns, stabilised poured earth forms the non-structural wall elements, and compressed earth blocks extend the concrete walls, creating arches and vaults of varying sizes. Reused tunnel slabs define the structure’s layout and serve as flooring, while a wooden ring beam and steel cables provide additional stability, optimise load distribution, and minimise material use. 

The project follows an interdisciplinary approach that brings together expertise from material science, architecture, engineering, and construction. This collaboration has led to the development of new solutions that make use of materials beyond conventional standards. The approach not only advances sustainable building practices but also encourages cross-disciplinary dialogue to challenge and expand traditional construction methods.

Location: Horw, Switzerland
Date: 2024
Products: Oxacrete Oulesse®, Oxacrete® Nossim, Oxabrick® Loko
Architecture: Design architecture: Sara Sherif (Oxara), Stefan Wülser (HSLU); execution architecture: ARGE Nina Hug, ATELIERWATT GMBH
Construction: Marti AG Bauunternehmung Zürich, ERNE AG Bauunternehmung, Repoxit
Material production: Kibag, Terrabloc
Sponsors: BAFU, City of Zurich, Swiss Prime Site, Klimastiftung Schweiz
Supporters: Holcim, Küng Holzbau, Müller Steinag, Repoxit, Zirkular, Duramon