Use of sediment from nanoremediation process in cement composites - - PowerPoint PPT Presentation

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Use of sediment from nanoremediation process in cement composites - - PowerPoint PPT Presentation

Jul 05, 2023 188 likes •280 views

Use of sediment from nanoremediation process in cement composites Uporaba sedimentov iz procesa nanoremediacije v cementnih kompozitih dr. Anka Ilc, univ. dipl. in. grad, Structum, d.o.o. Konferenca RusaLCA, 3. 4. 10. 2016 WASTE WATER

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Use of sediment from nanoremediation process in cement composites Uporaba sedimentov iz procesa nanoremediacije v cementnih kompozitih

  • dr. Anka Ilc, univ. dipl. inž. grad, Structum, d.o.o.

Konferenca RusaLCA, 3. – 4. 10. 2016

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SMALL-SCALE WASTE WATER TREATMENT PLANT PURIFIED WATER WASTE WATER NANOREMEDIATION PROCESS SLUDGE SEDIMENT GOAL: ZERO SOLID WASTE SYSTEM

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WHAT? A water suspension containing iron oxide nano particles with adsorbed pollutants from water. WHERE TO USE IT?

  • Embankment,
  • Concrete,
  • Cement.

HOW TO USE IT?

  • Dry it first,
  • Use it as

suspension.

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How does the addition of sediment from nanoremediation process effect concrete properties?

  • Fresh concrete properties,
  • Concrete strength and durability,
  • Environmental issues.

MIXTURE LABEL CONTENT OF SUSPENSION [kg/m3] CONTENT OF DRY MATERIAL [kg/m3] R-0 (ETALON) R-1 7 0,5 R-2 180 12,1

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FRESH CONCRETE PROPERTIES

MIXTURE LABEL CONTENT OF SUSPENSION [kg/m3] CONTENT OF DRY MATERIAL [kg/m3] SLUMP [mm] WATER to CEMENT RATIO FRESH CONCRETE DENSITY [kg/m3] R-0 (ETALON) 210 0,44 2390 R-1 7 0,5 220 0,43 2440 R-2 180 12,1 210 0,50 2340

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HARDENED CONCRETE PROPERTIES: COMPRESSIVE STRENGTH

10 20 30 40 50 60 5 10 15 20 25 30 35

Compressive strength [MPa] Time [day] R-0 R-1 R-2 MIXTURE LABEL CONTENT OF SUSPENSION [kg/m3] CONTENT OF DRY MATERIAL [kg/m3] R-0 (ETALON) R-1 7 0,5 R-2 180 12,1

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HARDENED CONCRETE PROPERTIES: DEPTH OF PENETRATION OF WATER UNDER PRESSURE CONCRETE COLOUR R-1 R-0 R-2

MIXTURE LABEL CONTENT OF SUSPENSION [kg/m3] CONTENT OF DRY MATERIAL [kg/m3] R-0 (ETALON) R-1 7 0,5 R-2 180 12,1

[VREDNOST] [VREDNOST] [VREDNOST] 5 10 15 20 25 30 35 40

R-0 R-1 R-2 Depth of penetration of water [cm]

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CONCLUSIONS

  • Addition of the sediment does not deteriorate concrete properties

significantly.

  • Heavy metals remediated from water are tied in cement matrix and

do not cause environmental problems.

  • It is possible to use sediment from nanoremediation process in

concrete as a water suspension.

  • It is possible to treat water without solid waste.

THANK YOU FOR YOUR ATTENTION!

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