13 mei 2022
Kamp C, the living lab of the Province of Antwerp for sustainability and innovation in the construction industry, and a previously selected consortium of seven companies have recently completed ‘t Centrum in Westerlo (Belgium). This is the first completely circular office building in Flanders. The three-storey building has a total surface area of 2,400 m2. The building’s high level of circularity is remarkable. It has been entirely constructed from reusable materials and can thus be completely disassembled and rebuilt elsewhere. The builders used innovative materials, applications, techniques and new business models throughout.
Kamp C is strongly committed to the transition in the construction industry, from traditional processes to circular building. ‘t Centrum stimulates the building’s users as well as people and businesses around it to use raw materials differently. Waste streams were reduced to a minimum and investments made in a sustainable energy supply and water management. The team has also paid a lot of attention to raising awareness and encouraging behavioural change, in addition to reducing the energy requirements of the building’s users. The experiences with alternative forms of partnership as well as the financing and business models will be shared with the public. Kamp C’s intention with ‘t Centrum is to show that circular building is possible, in addition to nudging the construction industry.
The building, with its well-thought-through circular design and conscious choice of materials, techniques and innovative business models, is a catalyst for circular construction in Flanders and beyond. ‘t Centrum has been designed according to a modular, standardised grid. With this concept, the consortium hopes to demonstrate that the building can be easily moved and expanded.
“Major players in the office market, such as Immobel, predict that the demand for sustainable buildings is set to increase in the coming years. We hope to get as many construction companies as we can on the bandwagon with ‘t Centrum. This benefits both the climate, as well as employment in the construction industry, one of the economic spearhead sectors in the Province of Antwerp”, says Kathleen Helsen, member of the Provincial Executive responsible for Work and Economy and the President of Kamp C.
“It is obvious that we need to take a more future-proof approach to construction. That is why we built ‘t Centrum”, says Emiel Ascione, project manager at Kamp C.
The office building has standardised modular walls, floors, columns and beams. The timber frame elements use GL and CLT. The result is a building that is easy to adapt, expand and renovate with components that are easy to recover and thus retain their value in the long term. Building with a deposit system is now possible. All the materials used are listed in a Building Information Model (BIM) to which the materials passport is directly linked. BIM is a digital model that combines all the data of a building and is used to facilitate collaboration between all the construction partners.
’t Centrum uses an innovative building management system. The system contributes to the lowest possible, optimised energy consumption, but is also used to manage preventive maintenance and extend the building’s lifespan. The building management system is fitted with wireless sensors, eliminating many metres of cable in the process and making it easier to expand or downsize the installation.
The Life Cycle Analysis (LCA) shows that the building has a very low environmental footprint. Compared with similar-sized conventional buildings, it saves approx. 800 tons of CO2 (comparable with the capturing of approx. 70 hectares/100 football pitches of forest).
A BTES field is used to heat and cool the building Cementless screed and foundations were especially developed for ‘t Centrum. The cementless foundations were produced by the URBCON Interreg project. By applying the URBCON concrete composition in these foundation elements, 22,500 kilos of secondary materials were used and 13,000 kg less CO2 emitted, compared with conventional foundations. The floor is made from shell insulation and a green wall will purify grey water. The furniture of the information centre at Kamp C was reused and upcycled and incorporated in the offices.
The team reused wood from Hangar 26, a former events venue in Antwerp, for the façade cladding. Antwerp-based sheltered workshop Kunnig gave the wood a total makeover. The wooden beams were given a second lease of life as façade cladding in ‘t Centrum.
The staff of Kamp C has since moved into its new offices in ‘t Centrum. The building is a showcase for circular building, serving as inspiration for new initiatives and innovation. Kamp C wants to showcase as many materials and techniques as possible in ‘t Centrum. You will soon be able to consult additional information online or on-site.
‘t Centrum was built by a consortium, named Kamp Circulair. It consists of seven companies: Beneens bouw en interieur, West Architectuur, Streng-th, Muurtuin, Tenerga, TENgroup, and VITO.
Photos: circular office building 't Centrum at Kamp C - © Kamp C, Jasmien Smets & Compagnie Fotografie (facade)