• "Cement production represents 5%
    of global human CO2-emissions!"

  • UPCYCLE BETONGULV

Introduction

The versatility of concrete as well as its proven economic track record, has shortened construction time and reduced costs significantly, and is now the most used building material in the world. In Denmark alone, 1.5 tons is used per capita per year. This number is not expected to decrease any time soon with the big infrastructural projects that are underway or in the pipeline the coming years.

Concrete is a costly material in CO2 terms. It is mostly the production of cement that burdens our environment with CO2 emissions and thereby contributes negatively to the greenhouse effect.

Cement production accounts for approx. 6% of global CO2-emissions from human activity!

If you take a look at statistics for concrete recycling, at first glance it looks promising with a recycling factor of almost 100%. But if you look further into how the concrete actually is recycled, the story is quite different. Usually concrete is crushed and used as road aggregate. If recycling is not possible or economically viable it is often landfilled. This is an obvious degradation of a product that has a huge amount of CO2 invested in it, an investment that is mostly or completely lost at deconstruction.

At Lendager Group we work towards a world without waste and continually develop materials and building components with the established goal of prolonging the lifetime of materials and closing the loops within the construction industry. In this proces we see a huge potential for recycled concrete and will in the coming years be working hard to reimagine concrete as a sustainable material.

TYPE, SIZE, SITE

Floor

1000 m2

Denmark, Ørestad

CUSTOMER

Solstra Capital Partners

PARTNERS

CG Jensen

Pelcon

Norrecco

STATUS, YEAR

Completed

2015

TEAM

Partner in charge: Anders Lendager

Project Leader: Brian Kessy, Kaare Karrebæk Thun

Upcycling

To be able to upcycle concrete waste into new concrete products the specific waste fraction must be subjected to several processes and quality assurance tests and analyses. Through a long trial process, we have amassed a lot of experience as well as very specific knowledge about handling, processing and documentation of concrete waste.

Today, this means that we are proud to be able to supply upcycle concrete that is documented to conform to all standard requirements to concrete.

Design

For the project Copenhagen Towers in Ørestad, Copenhagen, Lendager Group were asked to raise the sustainability profile of the project by covering the interior surfaces with upcycled materials. Not only should the materials be sustainable, they should also fit seamlessly into a high-end, exclusive office setting.

For this project we designed an upcycled concrete floor covering 1000m2, a floor with its own aesthetic compared to a classic sanded concrete floor. The recycled concrete is clearly visible in the new floor and creates a varied and almost stone-like appearance.