Cinderela pilot project - Skopje

About the business model

The pilot project addresses the challenge by assessing industrial waste to the possibilities for resources, development, and testing of new construction materials based on secondary raw materials and their application for the revitalization of the degraded area.

The pilot production plant in Skopje, Republic of North Macedonia is focused on the development of SRM-based construction material analyzing the technical, technological, and administrative possibilities of processing and use of the non-hazardous industrial waste (black and white slag) for reuse. As the waste is not suitable for direct use in construction, it must be mechanically processed (sowing, demetalization, crushing, and mixing of the black slag and grinding and mixing of the white slag) into building materials - aggregates.

The final products are:

aggregate for a tampon (sub-base);
aggregate for asphalt;
substitute for cement as 20% addition for concrete.

These aggregates were used as aggregate for a tampon (sub-base 0-63 mm), while the fractions (4-8 mm, 8-11 mm, 11-16 mm and 16-22 mm) were used as aggregate for asphalt.

On the demo area, the aggregate for tampon and the aggregate for asphalt (for asphalt production) were used for reconstruction (rehabilitation) of asphalted access road with the intersection and shoulders with a total area of 2 150 m².Also, one of the products was used as aggregate for a tampon (0-63 mm) for revitalization (rehabilitation) of a truck parking plateau, with an area of 6 500 m². The white slag was used as a substitute for cement as 20% addition in concrete for the production of partition blocks for walls construction.

The revitalization of the degraded area demonstrates the usefulness of industrial waste materials as new materials in the construction sector. These large demonstration pilot projects contribute to the development of knowledge and demonstration of good practices essential to help construction companies build circular business models.

[101003] furnace slag

About the company:

CEIM is a unique brand that offers a wide range of services and provides complex solutions for the most complex projects in the field of civil engineering: consulting in all project phases (preparation and audit of studies, urban plans, designs, tenders, reports), supervision and quality control during construction, project management, and engineering, laboratory quality control of construction works and materials, certification of construction products, the performance of geological, hydrogeological and geotechnical research works, the performance of complex specialized construction works.

The areas of expertise in which the company develops and offers services include building construction, civil engineering, water economy, dams, and complex hydro-technical systems, water protection and management, energetics, industrial technologies, environmental protection and improvement, geotechnics, geology, hydrogeology, and the quality of the construction materials and products.

According to world standards in this area Civil Engineering Institute “Macedonia'' develops ethics of confidence and security among associates and investors whose primary objective is geared towards professionalism, expertise, reliability, quality, and entrepreneurship. The high professionalism, expertise, commitment of the personnel, and competence of the management team are a guarantee for the constant quality of the services and customer satisfaction.

https://gim.mk/

CEIM

Product Value Chain by step of production

Step	Provide quantity and activity
Industrial waste	Black and white slag
Laboratory characterization of waste material
Mechanical treatment of waste	Sowing, demetalization and crushing process
Production of SRM based construction product	1. aggregate for tampon (sub-base); 2. aggregate for asphalt; 3. substitute for cement as 20% addition for concrete.
Product quality control	Testing of the SRM based products
Application for revitalization of degraded area	Revitalization of 6500 m2 area in a parking plateau; Reconstruction of 2150 m2 accessed road; Partition walls of concrete blocks.