Ricehouse natural mortars are obtained by expertly mixing aerial lime with rice husks, a agricultural by-product derived from husking raw rice.

C2C ExpoLAB is a consultancy firm which specialises in the practical application of Cradle to Cradle (C2C) principles in the built environment. It enables its clients to exploit the circular economy concept. One of its projects was Venlo city hall which illustrates its approach and principles.

Biorizon has been co-creating technologies for the production of bio-aromatics at the Green Chemistry Campus in Bergen op Zoom since 2013. Together with industrial partners, Biorizon creates and develops innovative chemical processes for the production of renewable aromatics from residual biomass. Their aim is to enable commercial production of bio-aromatic building blocks by 2025.

The cooperative company Tradecowall manages construction and demolition waste in the Belgian Walloon region and comprises a network of companies working with inert waste recycling centres in the region.

The Serbian company Feplo manufactures waterproof eco-boards from recycled beverage cartons.

The Interreg North-West Europe project SeRaMCo (Secondary Raw Material for Concrete Precast Products) focused on researching and promoting the use of secondary raw materials from construction and demolition waste (CDW).

Buurman is a hardware store and workshop that only uses secondary materials, such as wood from demolition sites and insulation materials, plywood and cables from construction sites in Rotterdam or from exhibitions and festivals.

Czech company Brens, which produces rail tracks, tram and railway lines, has turned to production processes using recycled materials.

The Italian company Mapei has come up with a product which brings leftover cement in mixer trucks back into the production cycle.

RE-sign has marketed an app matching up supply and demand for reclaimed construction materials.

eCO2blocks creates an alternative – or a complementary material – to cement by producing building blocks made from industrial waste and water which is not fit for drinking.

Ambiente_Sregional is a circular economy project for the civil construction sector in the Azores, developed jointly by Fibrenamics, the international platform of the University of Minho, and the Regional Laboratory of Civil Engineering (LREC-Azores).

The City of Helsinki has coordinated a project on the reuse of excavated soil in construction projects across the city. This project consists of improving coordination of how and where excavated soil is used.

RUCONBAR, developed in a project which ran from 2011 to 2014, is a highly absorptive, environmentally-friendly concrete noise barrier. It is an innovative mixture of recycled waste tyres and concrete which forms a porous, lightweight, sound absorbing panel.

REC.ON creates its production by recovering auto parts. Using a unique upcycling process, they transform used, unwanted parts of automobiles into new, high-quality, functional pieces of design, adding style and an industrial aesthetic to any interior. Moreover, they have a unique process of acquiring their materials.

Alchemia-nova, the Institute for innovative phytochemistry and closed loop processes, has colloborated with vertECO, GRETA and LooPi to develop three types of green walls, which treat wastewater to service water standards and create plant biomass and fertiliser.

There are not many eco-friendly products on the Romanian construction market, so there was definitely a niche in the thermal insulation market. LanaTerm uses sheep's wool to create thermal insulation for buildings.

Titan Greece - a cement and building material producer - plays an active role in the implementation of a circular economy model at various stages of the production process.

RAU has been working in the architectural sector focusing on the design of sustainable buildings. Their projects include buildings for public/private sectors, with an integrated design methodology.

The Life Is.ECO project was aimed to create and implement an integrated system for the treatment of production waste and obsolescences of bitumen-polymer membranes and insulating mineral based on glass fiber, for their recycling and reintroduction in their respective production processes.

HISER's main objective is to develop and demonstrate holistic, technological and cost-effective solutions to increase recovery rates from increasingly complex construction and demolition waste (C&DW), with due regard for circular economy principles on the value chain in the construction sector (from buildings' end of life to new buildings).

PU foam pressurised containers are used to fill gaps and to insulate and install window and door frames so as to make buildings airtight. OCF (one-component foam) producers have invested in a recycling company which recycles the metals in the packaging material, the reactive residual polyurethane prepolymer and the propellant.

The University of Malta has developed a patented process that recycles limestone and concrete construction and demolition waste into masonry products. These have superior mechanical properties compared to natural limestone products.