Lar / Perguntas frequentes / Como a fumaça de sílica reduz os custos de produção de concreto?

Como a fumaça de sílica reduz os custos de produção de concreto?

fumaça de sílica em concreto de alto desempenho

A sílica fume é um subproduto da indústria de ferrosilício que é usada como material cimentício suplementar em concreto. It has a number of properties that make it beneficial for concrete production, including:

  • High pozzolanic activity, which means that it can react with calcium hydroxide to form additional cementitious material
  • Fine particle size, which gives concrete a denser and more uniform microstructure
  • Low water demand, which means that less water is needed to achieve a given workability

These properties of silica fume can lead to a number of benefits in concrete production, including:

  • Increased strength
  • Reduced permeability
  • Improved durability
  • Reduced drying shrinkage
  • Reduced heat of hydration
  • Reduced water demand

The cost savings associated with using silica fume in concrete production can be significant. Por exemplo, the use of 5% silica fume can reduce the amount of cement required by up to 10%, which can lead to a cost savings of 5-10%. Além disso, the use of silica fume can reduce the amount of water required, which can lead to further cost savings.

The overall cost savings associated with using silica fume in concrete production can be significant, and they can be even greater in high-performance concrete applications. Por exemplo, the use of silica fume in high-performance concrete can lead to a cost savings of up to 20%.

Here is a table summarizing the cost savings associated with using silica fume in concrete production:

Property Benefit Cost Savings
Increased strength Concrete can withstand more load Até 5-10%
Reduced permeability Concrete is less susceptible to water damage Até 5-10%
Improved durability Concrete can last longer Até 5-10%
Reduced drying shrinkage Concrete is less likely to crack Até 5-10%
Reduced heat of hydration Concrete does not heat up as much as it cools Até 5-10%
Reduced water demand Less water is needed to achieve a given workability Até 5-10%

Overall, the use of silica fume in concrete production can lead to significant cost savings. These savings can be even greater in high-performance concrete applications.

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