Cibex (Expanded)

Description

Cibex (Expanded)

To control and compensate for the effects of shrinkage in concrete and mortar, the use of a specialized material is essential. Cibex (Expanded), composed of expansive agents and nanosilica, is added as an effective additive to mortar and concrete. This material, formulated and produced in the form of a concentrated powder, improves the performance of concrete and mortar by controlling shrinkage.

In concrete sections, whether in fresh or hardened concrete, cracking usually occurs due to shrinkage and contraction of the mortar during the hydration process and water loss. This issue is considered one of the significant challenges and primary concerns for contractors and engineers in construction projects. In addition to this factor, several other reasons can contribute to concrete cracking, including:

• The type and amount of cement used in the concrete mix
• Water loss caused by surrounding water-absorbent sections
• The water content used in the concrete mixture
• Failure to follow proper curing and concrete treatment practices
• Ambient temperature conditions
• The quality of the aggregate materials used

The application of Sibex plays a crucial role in various projects, such as grouting, concrete casting, and structural repairs. This product is compatible with all types of Portland cement, except for Type 5 cement. Using Sibex ensures that shrinkage caused by cement hydration is neutralized or reduced to a minimum.

More products ; grout

Properties and Effects Cibex (Expanded)

• Prevents water bleeding in mortar and concrete.
• Accelerates the attainment of early and final strength of concrete.
• Compatible with all types of Portland cement (except type 5).
• Easy to use (added directly at the project site).
• Increases the compressive strength of concrete.
• Improves the mechanical and electrical resistance of concrete.
• Prevents shrinkage and cracking in concrete.
• Free of iron particles and aggregates, preventing corrosion of steel.
• Enhances the bond between steel and the surrounding medium.
• Provides controlled expansion in mortar and grout.
• Compensates for plastic shrinkage in concrete by creating additional expansion.
• Maintains the stability and integrity of the structure.
• Enhances the adhesion of grout and mortar to various surfaces such as concrete, metal, and stone.
• Improves structural connections.
• Highly resistant to water penetration.

Applications

• Allows concrete pouring in confined and enclosed sections.
• Suitable for producing mortar for the substructure of steel-framed buildings.
• Ideal for making concrete under base plates of industrial machinery.
• Suitable for pouring mortar under transfer rails in industrial plants.
• Used in grouting operations for dams, tunnels, and similar projects.
• Ideal for use in repair mortars to prevent shrinkage in concrete.
• Capable of producing concrete mixtures that require expansion.
• Produces expansive cement slurry without shrinkage.
• Creates non-shrinking grout for filling voids.
• Suitable for mortar used in the installation and stabilization of rebar.
• Ideal for filling cavities and connections between structures.

How to use

The best method for adding Sibex to mortar or concrete is after mixing all the components and adding water. It is recommended to mix for at least 1 minute per cubic meter to ensure uniform distribution of the material throughout the mixture. Controlled expansion occurs when no lateral pressure is applied to the mortar or concrete before the initial setting of the cement, allowing the mortar or concrete to naturally expand and fill any voids and spaces. The expansion typically takes place within 2 hours after mixing with the mortar, depending on the amount of expansive powder used and the type of cement. It is always recommended to add Sibex along with a superplasticizer to the mortar or concrete for better distribution of the expansive powder particles, which helps reduce water consumption for making the mortar slurry, thus increasing its strength.

In cold weather conditions with temperatures below 7°C, it is better to use rapid-hardening cement. The use of pozzolanic cement or Type 5 cement with the expansive agent will not yield optimal quality results.

Physical and chemical properties table

physical state	powder
color	gray
Special Weight	2/2 gr/cm3
Chlorine ion	does not have
1-day compressive strength	300 kg/cm2
3-day compressive strength	500 kg/cm2
7-day compressive strength	650 kg/cm2
28-day compressive strength	800 kg/cm2
Expansion start time	20 minutes
Expansion end time	2:30

Packaging

1 kg Bucket