TO BUILD IS TO BELIEVE
Mortar Glue
Silica fume enables more economical usage of mortar glue by decreasing the adhesive and polymers used in the formulations of different adhesive mortars produced.
Project Performance Attribute
AderênciaProjecto
Adhesion Mortar industries.Repair Mortars
The attribute desired in this case refers to the already existing high adhesion to the concrete and high chemical and mechanical protection of the repaired part. Silica fume acts directly on the transition zone of the aggregates with the paste, making it an excellent solution in the formulation of repair mortars.
Performance Attribute
Mechanical strength, adhesion, resistence to chemical attack, chlorides and low permeability.Project
Structure repairsStudies
. Evaluation of efficiency of repair systems in combatting the I Durability and Resistance.. Mechanics of Concrete and Mortar
. Performance study of four types of materials for
repair to be used on eroded surfaces of concrete dams. Durability in concretes and mortars with addition of microsilica
Coating Mortars
This type of application usually requires high adhesion and low permeability. Attributes that the silica fume combined with additives greatly increase, thereby reducing consumption of cement and final costs.
Project Performance Attribute
Adhesion and permeability.Project
BuildingsCement Products
Because they are parts that usually have a low thickness, these pieces are subject more to chemical attack, high forces in handling, in addition to requiring a good finish. Silica fume promotes a considerable increase in mechanical, chemical and aesthetic resistance, making it an excellent choice for this type of application.
Performance Attribute
Mechanical strength, erosion abrasion, decreased efflorescence and low permeability.Project
Cement product industries.Injection glues
The addition of silica fume promotes a major increase in resistance and adhesion for injection glues, in addition to rheological improvements that collaborate in the application.
Project Performance Attribute
Mechanical strength, adhesion. Structure repairsProjeto
Reparos de estruturaReinforced Concrete
The use of silica fume promotes better mechanical performance and durability of reinforced concrete structures, with gains excellent cost benefit gains.
Performance Attribute
Mechanical strength, modulus of elasticity, improved resistance to chemical or chloride attacks, and low permeability.Project
Buildings, Maritime construction, industry, bridges, sanitation.Studies
. Fluid transport mechanisms in concrete with Silica Fume. Chemical aggression in concrete with Silica Fume.
Corrosion of reinforcement in concrete with Silica Fume.
Potential for use of silica
fume additions in CAD.
. Durability in concrete and mortars with addition of microsilica.
.High Performance Concrete (CAD) Pillars
. Fundamentals and Experimentation
Concrete Mix
The pozzolans used in this type of application have been common for a long time and the silica fume, because it is a superpozzolan, has a high power binder substitution, which in some cases allows the elimination of the use of ice or a great minimization of its use, bringing large cost reductions and exemplary technical solutions.
Performance Attribute
Lower hydration heat, greater resistence to chemical or sulphate attack, and decreased permeability.Project
Buildings, dams.Studies
. Roller-compacted concrete attacked by pure water. Roller-compacted concrete attacked by sulphates
. Fluid transport mechanisms in concrete with Silica Fume
. Potential use of silica fume additions in CAD.
Shotcrete
The biggest challenge with shotcrete is required to ensure the resistance applied concrete, combined with cost and performance during application. At the time of application, the silica fume contributes greatly to reducing the reflection effect of the shotcrete, reducing waste by around 30%.
Performance Attribute Project Studies
Low reflection, Tunnels resistance. Mechanical Shotcrete, adhesion, resistence to chemical, chloride and sulphate attacks and low permeability.Project
Tunnels.Studies
Concreto ProjetadoPrestressed Concrete
Prestressed concrete requires mechanical strength combined with low shrinkage and good modulus of elasticity at low ages, in addition to higher durability than reinforced concrete.
Performance Attribute
Mechanical strength, modulus of elasticity, adhesion, improved resistance to chemical or chloride attacks, and low permeability.Project
Buildings, maritime construction, industry, bridges.Studies
. Fluid transport mechanisms in concrete with Silica Fume. Chemical aggression in concrete with Silica Fume.
. Corrosion of reinforcement in concrete with Silica Fume
. Potential use of silica fume additions in CAD
. Durability in concretes and mortars with addition of microsilica
. High Performance Concrete (CAD) Pillars
. Fundamentals and Experimentation
Concreto Submetido a Cura Termica
In this type of concrete the heat promotes an acceleration of cement hydration reactions, quickly generating the products of hydration. The silica fume suffers significant acceleration in its reactions which promotes a higher gain gain in resistence for concrete without adhesion, bringing benefits in binder reduction or thermal curing time. Greatly reducing the costs in these types of concrete.
Project Performance Attribute
Higher initial Precast mechanical strength. and finally, modulus of elasticity.Projeto
Pré-fabricados.Concrete Subjected to AAR
In concrete where aggregates are known to present reactivity to the presence of alkalies, silica fume neutralizes the harmful effects at levels between 6-8%, allowing the elimination of this deleterious effect.
Performance Attribute
Neutralization of Alkali-Aggregate Reaction (AAR).Project
Buildings, Maritime construction, Industry, Dams, Bridges, Sanitation, Floors, Tunnels, Railways, Airports.Studies
Silica Fume vs Metakaolin Alkalies Reaction Comparative StudyFiber cement
Silica Fume is used in fiber cements that use cellulose fibers in place of traditional asbestos fiber, replacing part of the cementitious material. The objective is to consume the calcium hydroxide and ensure greater durability of the cellulose fibers used in the mixture. Another advantage is the improvement of the compactness and packing of the particles.
Project Performance Attribute
Mechanical strength, decreased fiber cement Industries. efflorescence, decreased permeability.Projeto
Industrias de fibrocimento.Grouts
The attribute desired in this case refers to the already existing high adhesion to the concrete and high chemical and mechanical protection of the repaired part. Silica fume acts directly on the transition zone of the aggregates with the paste, making it an excellent solution in the formulation of microconcretes, in addition to providing increased mechanical strength with low binder consumption.
Project Performance Attribute
Mechanical strength, structure elasticity Repair module, adhesion, better resistence to chemical or chloride attacks and low permeability.Project
Reparos de estruturaIndustrial / commercial flooring
Silica fume improves the performance of concrete floors both mechanically and in the face of different chemicals attacks.
Performance Attribute
Mechanical strength, abrasion, resistance to chemical or sulfate attacks, low permeability.Project
FloorsStudies
. Use of Microsilica Floor. Use of Microsilica Floor. Special Comparison of Microsilica
. Chemical Aggression and Concrete Abrasion Resistivity of Test
. Formic acid Action Study in Concrete with Silica Fume Addition
. Study of Concrete with Silica Fume Addition (Microsilica)
Grouts
Silica fume enables more economical usage of grouts by decreasing the adhesive and polymers used in the formulations, by consuming calcium hydroxide.