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Technogenic Fiber Wastes for Optimizing Concrete
Sergey Klyuev1, Roman Fediuk2,3, Marina Ageeva1
1Belgorod State Technological University Named after V.G. Shukhov, 308012 Belgorod, Russia.
Materials (Basel, Switzerland)
|July 27, 2022
Summary
Waste from technogenic fibrous materials (TFM) can be processed into mineral fiber fillers for concrete. Grinding TFM waste for 10 minutes enhances concrete strength and formability, offering a sustainable building material solution.
Area of Science:
- Materials Science
- Civil Engineering
- Waste Management
Background:
- Technogenic fibrous materials (TFM) production generates waste suitable for mineral fiber filler.
- Existing research has not fully explored TFM waste as a binder component in concrete.
- Basalt production waste offers a novel approach to concrete optimization.
Purpose of the Study:
- To investigate the physical and mechanical properties of TFM waste as additives for concrete.
- To optimize raw concrete mix compositions using TFM waste.
- To assess the potential of ground TFM waste as an active mineral additive.
Main Methods:
- Chemical, mineralogical, and granulometric analysis of TFM waste.
- Microstructure analysis of concrete with TFM additives.
- Physical and mechanical testing of concrete at various ages and TFM content (10-30%).
Main Results:
- Grinding TFM for 10 minutes refines fibers and pellets, creating a fine powder.
- The presence of quartz in TFM facilitates the synthesis of calcium silicate hydrates.
- Concrete with 10-20% TFM content showed strengths exceeding 40 MPa at 90 days.
- A flexural to compressive strength ratio of 0.2 indicates significant reinforcing effects.
Conclusions:
- Milled TFM waste (10 min grind) can be used as an active mineral additive in concrete.
- TFM additives improve concrete mix formability and provide micro-reinforcement.
- This research supports the sustainable use of industrial waste in fiber-reinforced concrete production.
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