Article (PDF).pdf

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🔗 Source: cementwapnobeton.pl
📊 Size: 1012 KB
👤 Author: Ak
⬇️ Downloads: 126

Summary

Expressway and highway pavements are exposed to intensive impacts of exploitation, including heavy vehicle traffic and environmental factors such as temperature and moisture along with the aggression of de-icing agents. Experimental tests were conducted on concrete under simulated service exposure conditions with external exposure to a 3% sodium chloride solution. The subject of the research was the expansion and elastic properties of air-entrained concrete made with siliceous aggregates from rocks containing moderate amounts of reactive minerals. Under simulated service exposure conditions, significant expansion of concrete specimens and a significant decrease in the resonance elastic modulus up to 12.5% were observed. Replacement of Portland cement with CEM II/A-V 42.5 N cement and CEM II/B-S 42.5 N cement significantly reduced concrete expansion and improved the stability of elastic properties. A practical method for predicting the durability of concrete in conditions where the reactivity category of the aggregate from local natural resources is uncertain was established.

Description

Expressway and highway pavements are exposed to intensive impacts of exploitation, including heavy vehicle traffic and environmental factors such as...

Technical Information

  • File Format: PDF
  • File Size: 1012 KB
  • Pages: 15
  • Language: EN
  • Author: Ak
  • Total Downloads: 126
  • Last Updated: 1 month ago

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