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View larger image of CEMflex PCA 113 from SURFASOLOGYCEMflex PCA 113

CEMflex PCA 113 is an easy-to-use, economic, crystalline and hydrophobic waterproofing admixture for concrete. The product creates a crystalline structure inside the concrete, reducing the amount and diameter of the capillary pores.The reaction takes place with the free lime of the concrete and creates a permanent reduction of water permeability. The crystalline effect allows the structure to self-heal shrinkage cracks under contact with water. Additionally, concrete treated with the product develops a strong ability to repel water.The product exceeds the requirements of EN 934-2 for concrete admixtures and is classified as a waterproofing additive according to Table 9.It is mixed into the concrete either at the batch plant or on site into the batch truck.Features and benefits:Self-healing properties of treated concrete of up to 0.4 mm static cracks.Waterproof up to 13 bar in properly formulated mix designs.Strong hydrophobic effect.Minimal efflorescence and discoloration.Easy to mix.Increased final strength.Little influence on concrete setting and strength development.Increased resistance against aggressive media with a pH range of 3–12, and against soft water with low-ion content.Suitable for potable water.Active corrosion inhibitor.CE marking is available; consult manufacturer for details.Applications:Typical applications include:Waterproof concrete for basements and below-grade parking structures.Usable on decorative features because of limited efflorescence compared to standard crystalline products.Waterproofing of potable water structures.Waterproofing of sewage structures.Waterproofing of tunnels and pipelines.Slab waterproofing.Waterproofing of shotcrete.Concrete treated with the admixture may discolour or show efflorescence once in contact with water. This is normal and mainly caused by the crystalline reaction. Spillages can be removed with water. Once it has cured, acidic cleaners are required.Concrete requirements:Waterproof concrete requires several measures to ensure a dense structure.Cement: The admixture can be used with most CEM I–III R and N (ASTM Type I–V) cements. Only cement types with more than 50% pozzolanic content are not suitable. Cement content must be at least 280 kg/m³.Fly ash: Total fly ash must be less than 50% of the cement content.Water: Potable water quality with a maximum dosage of 55% on cement content (water:cement ratio <0.55).Pozzolans: Pozzolanic additives like Microsilica or slag should be avoided as they compete with CEMflex PCA 113 for the available lime.Aggregates and sand: Ensure a proper sieve curve according to good concreting practice as outlined, for example, in the ACI guidelines.Admixtures: The product is compatible with most concrete admixtures. Trial mixes are highly recommended.Rebar: Amount and layout of reinforcement must be planned to minimize the risk of crack development. The rebar design is not influenced by the use of CEMflex PCA 113.Colour:Grey.Technical characteristics:Density: 1.1 kg/L.Water permeability according to EN 12390-8: 13 bar (190 psi) positive and negative side.Capillary absorption: 72% against control.Compressive strength (compared to untreated concrete): ±0% after seven days. ±1% after 28 days.Fire rating to EN 13501-1: Class A1.Dosage per m³ concrete: Varies with water percentage used. Consult technical literature for details.Concrete mix design: Consult technical literature for details.

CEMflex PCA 113 is an easy-to-use, economic, crystalline and hydrophobic waterproofing admixture for concrete. The product creates a crystalline structure inside the concrete, reducing the amount and diameter of the capillary pores.

The reaction takes place with the free lime of the concrete and creates a permanent reduction of water permeability. The crystalline effect allows the structure to self-heal shrinkage cracks under contact with water. Additionally, concrete treated with the product develops a strong ability to repel water.

The product exceeds the requirements of EN 934-2 for concrete admixtures and is classified as a waterproofing additive according to Table 9.

It is mixed into the concrete either at the batch plant or on site into the batch truck.

Features and benefits:

  • Self-healing properties of treated concrete of up to 0.4 mm static cracks.
  • Waterproof up to 13 bar in properly formulated mix designs.
  • Strong hydrophobic effect.
  • Minimal efflorescence and discoloration.
  • Easy to mix.
  • Increased final strength.
  • Little influence on concrete setting and strength development.
  • Increased resistance against aggressive media with a pH range of 3–12, and against soft water with low-ion content.
  • Suitable for potable water.
  • Active corrosion inhibitor.
  • CE marking is available; consult manufacturer for details.

Applications:

Typical applications include:

  • Waterproof concrete for basements and below-grade parking structures.
  • Usable on decorative features because of limited efflorescence compared to standard crystalline products.
  • Waterproofing of potable water structures.
  • Waterproofing of sewage structures.
  • Waterproofing of tunnels and pipelines.
  • Slab waterproofing.
  • Waterproofing of shotcrete.

Concrete treated with the admixture may discolour or show efflorescence once in contact with water. This is normal and mainly caused by the crystalline reaction. Spillages can be removed with water. Once it has cured, acidic cleaners are required.

Concrete requirements:

Waterproof concrete requires several measures to ensure a dense structure.

  • Cement: The admixture can be used with most CEM I–III R and N (ASTM Type I–V) cements. Only cement types with more than 50% pozzolanic content are not suitable. Cement content must be at least 280 kg/m³.
  • Fly ash: Total fly ash must be less than 50% of the cement content.
  • Water: Potable water quality with a maximum dosage of 55% on cement content (water:cement ratio <0.55).
  • Pozzolans: Pozzolanic additives like Microsilica or slag should be avoided as they compete with CEMflex PCA 113 for the available lime.
  • Aggregates and sand: Ensure a proper sieve curve according to good concreting practice as outlined, for example, in the ACI guidelines.
  • Admixtures: The product is compatible with most concrete admixtures. Trial mixes are highly recommended.
  • Rebar: Amount and layout of reinforcement must be planned to minimize the risk of crack development. The rebar design is not influenced by the use of CEMflex PCA 113.

More about CEMflex PCA 113:
As standard

CEMflex PCA 113
 Manufacturer:
SURFASOLOGY.
  -Web:http://www.surfasology.com/.
  -Tel:+353 (0)1 832 10 05.
  -Product reference:
CEMflex PCA 113.


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Guidance

for CEMflex PCA 113

from SURFASOLOGY

More about CEMflex PCA 113: As standard

As standard

Colour:

Grey.

Technical characteristics:

  • Density: 1.1 kg/L.
  • Water permeability according to EN 12390-8: 13 bar (190 psi) positive and negative side.
  • Capillary absorption: 72% against control.
  • Compressive strength (compared to untreated concrete): ±0% after seven days. ±1% after 28 days.
  • Fire rating to EN 13501-1: Class A1.
  • Dosage per m³ concrete: Varies with water percentage used. Consult technical literature for details.
  • Concrete mix design: Consult technical literature for details.

Further Information

Literature:

RIBA Product Selector

Additional information may be available for SURFASOLOGY from ribaproductselector.com.

Contacts:

http://www.surfasology.com/

sales@surfasology.com

T: +353 (0)1 832 10 05

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