New Circular Economy Business Model for More Sustainable Urban Construction

Cinderela pilot project - Maribor (By Nigrad)

2

About the company
The company Nigrad is responsible for setting up and carrying out the pilot production. The company with a 160-year tradition with 270 employees takes care of the maintenance and construction of road and sewerage infrastructure in the City of Maribor and neighboring municipalities. The company's activity dates back to the very beginning of the municipal planning of the city of Maribor, in 1857, when the then city authorities bought two rooms for storing tools and materials from the Maribor military era. Since the municipal planning of the city has always lagged behind the development of the city itself, the municipal activity has been faced with great challenges every now and then. The first systematic communal arrangement of the town was carried out as early as 1862, but over time it died out again and awaited its rebirth in the 1930s, when all communal and service activities in the town were arranged, which is the basis for municipal equipment and city planning.

www.nigrad.si 

About the businessmodel
In the pilot production NIGRAD wants to analyze the technical, technological and administrative possibilities of processing and use of various non-hazardous construction as well as some other waste as new products after processing. For this purpose, a demonstration facility and an access road will be built and a selected degraded area will be revitalized, whereby a certain share of waste will be used as construction materials for various purposes of construction interventions. However, as the waste is not suitable for direct use in construction, it must be pre-processed. For this purpose, a pilot plant for the processing of construction waste will be set up, and certain other (non-construction) waste will be obtained in the project after the preliminary pre-treatment.

 

The processed products will be used in three demonstration constructions:

-          Revitalization of degraded area,

-          Construction of pilot facility and

-          Road construction

[010410] non hazardous dusty and powdery waste [170107] *mix concrete, bricks, tiles [170202] glass [170302] *bituminous mixtures [170504] *soil and stones [170904] *mixed construction and demolition waste [191205] glass from waste treament [191209] mineral waste from waste treatment [191212] *other waste from waste treatment
Product Value Chain by step of production
StepProvide quantity and activity
Removal of non hazardous waste for recovery e.g. asphalt waste (bitominous mixtures)
Larger cuts manual disposal of unsuitable waste
Unprocessed purified waste goed into Crushing Rubble Master
The crushed materials flood into mixing machine Fibo Intercon B1200
Composite blend
Recycled construction products e.g. concrete building blocks
A road (1920m2) + a utility building (145m3)
Key Partnerships
Municipality of Maribor
First version of revenue model including pricing hypotheses
Prototype demonstration in operational environment
Identification of the systemic capabilities
Principles Circular Product Design
Design products to last for a long(er) period of time

Immagini

Monday 10 January 2022 - Last edit: Thursday 20 January 2022