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CERESIT CD 25 Fine-grained concrete repair mortar for thin layers

  • Fast-hardening and low-shrinkage
  • Resistant to frost and de-icing road chemicals
  • For inside and outside use

Features and benefits

Fine-grained one component filler to smooth out concrete and reinforced concrete, to fill cracks/voids and repair damaged substrates. The range of application is from 5 to 30 mm.

Properties

Description

CERESIT® CD 25 is part of the concrete repair system CERESIT PCC, which additionally consists of CD 24, CD 26, CD 30. The system is designed for filling cracks/voids and re-profiling balconies, as well as for making complex repairs for various types of cement and reinforced concrete structures, such as balconies, overpasses, reinforced concrete ditches, ceilings, tanks, flyovers, frame structures and multi-board structures, monolithic structures etc.Available pack size: 25kg

Documents and downloads

How to use

CERESIT Tiling CE60 LP Instructions Illustration Step 1

SUBSTRATE PREPARATION FOR APPLICATION OF CERESIT CD 25 CONCRETE MORTAR

Concrete: Corroded and carbonated concrete and any loose elements should be carefully removed. Any stains the layer of cement wash, anti-adhesion agents, old layers should be mechanically removed. The substrate of the concrete should be rough and porous, ensuring good adhesion. Reinforcement: The corroded reinforcing bars should have the concrete support removed up to the places which are not corroded. Before the application of CERESIT CD 25, the uncovered reinforcing bars should be covered with anticorrosion protection CD 30 twice. Concrete substrates should be sprayed with water without any puddles formed and then the slightly damp substrates and the previously protected reinforced steel should be covered with the contact layer CERESIT CD 30.

CERESIT Tiling CE60 LP Instructions Illustration Step 2

MIXING AND APPLICATION OF CERESIT CD 25 CONCRETE MORTAR

Preparation of the mortar: The content of the packaging should be poured to the measured amount of clean water and mixed with the slow rotating drill with a mixer until the homogenous mass without lumps is obtained. Then it is necessary to wait 3 minutes and mix the mortar once again.Application of the mortar: Within the pot life the ready mortar should be applied with the trowel on the freshly applied contact layer or poured to the form and it should be properly structured.Additional protection of concrete: The additional protection for concrete against corrosion, harmful water impact, frost, aggressive agents and weather is to cover the mortar of CERESIT CD 25 with acrylic paint CERESIT CT 44 or flexible insulation layer CERESIT CR 166. 

CERESIT Tiling CE60 LP Instructions Illustration Step 3

IMPORTANT TO NOTE WHEN USING CERESIT CD 25 CONCRETE MORTAR

Additional cover the mortar of CERESIT CD 25 with acrylic paint CERESIT CT 44 or flexible insulation layer CERESIT CR 166 can be applied after 3 days when CD 25 has been applied. Use CD 25 only in dry conditions, the temperatures ranging from +5 to +30°C and relative humidity below 80 %. The mortar should be protected against too fast drying caused by the strong insulation, draughts, etc 

Related how to guides

  • Chemical anchor in hollow masonry
  • Chemical anchor in concrete

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Frequently asked questions