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Secondary Materials

We prioritize the utilization of secondary materials in earthworks from feasibility study and implementation to professional geotechnical supervision in compliance of circular economy principles for sustainable development

Our experts provide comprehensive services of the utilization of the secondary and other alternative materials in earthworks, not only in road and highway constructions. Mechanical properties of secondary materials are often not only equivalent to natural ones but surpass them in certain aspects. The use of secondary materials has an increasingly important role in the optimization of materials resources applied to constructions and it is one of the main paths to sustainable development and circular economy.

Contact us

Doc. RNDr. František Kresta, Ph.D.
T: +420 602 342 896
E: Frantisek.Kresta@geotechnika.cz

The utilization of secondary and alternative materials

  • Feasibility study of the utilization of chosen secondary material in earthworks
  • Initial tests of secondary materials, including non-standard and long-term tests (e.g. swelling test of slag materials under 75°C - hot water bath test to 75°C, susceptibility of colliery spoil to spontaneous combustion tests, long-term analysis of volume changes over months even years)
  • Research and development of alternative hydraulic road binders using fly ash, blast furnace slag or lime and cement kiln dusts
  • Technical and technological specifications concerning utilization of secondary or alternative materials in construction site
  • Geotechnical supervision on earthwork with secondary materials
  • Control tests of secondary materials used in earthworks
  • Revision analyses of failures due to implementation of secondary materials with inappropriate properties (volume changes and swelling of fluidized fly ash and bed ash, or metallurgical by-products)

Reference

We prepare technical specifications for the utilization of secondary and alternative materials

We are authors and members of technical editorial boards for processing technical conditions of the utilization of the secondary and alternative raw materials, including membership in Working Group WG7 use of alternative materials in earthworks within Technical Committee CEN/TC 396 Earthworks in Brussels.

TP 93

Design and execution of road constructions using fly ash and ashes

TP 138

Use of slag-based aggregates in road construction

TP 176

Colliery spoil in road construction

TP 210

Use of recycled materials from construction and demolition wastes in road construction

Verification of the Use of Fly Ash from Předmostí u Přerov and Prosenice Repositories into the D1 Motorway Embankment – Technological regulation for the utilization of fly ash on site

Analysis of the Causes of Floor Deformations in Shopping and Administrative Centers, Ostrava – Determination of causes, floor subsoil behavior and design of remediation measures for IKEA Link Ostrava, TESCO Ostrava-Třebovice, TESCO Havířov, OC Futurum, Lidl Frýdek-Místek, Lidl Havířov, Demos Ostrava, MAKRO Ostrava

Verification Laboratory Test of Alternative Hydraulic Road Binder, Brno – Development of alternative hydraulic road binder using fly ash and cement kiln dusts

Laboratory Test of Fly Ash Stabilizer, Rovinari Power Plant, Romania – Design of optimal mixing of dry fly ash, fly ash suspension and lime

Analysis of the Causes of D47 Motorway Deformation in the Ostrava – Bohumín Section – Determination of causes of road failure due to incorporation of secondary materials with inappropriate attributes

Verification of the Use of Fly Ash from Předmostí u Přerov and Prosenice Repositories into the D1 Motorway Embankment
Analysis of the Causes of Floor Deformations in Shopping and Administrative Centers, Ostrava
Verification Laboratory Test of Alternative Hydraulic Road Binder, Brno