Planitop HPC is a two-component fluid mortar suitable for casting into formwork without the risk of the mortar segregating. Areas up to 40 mm thick can be cast without using reinforcing steel; for thicker areas, it is possible to use suitable reinforcement steel.

Planitop HPC is a ready-mixed free-flowing mortar made from two components: component A (powder) and component B (HPC Fibres).

Planitop HPC component A (powder) is made from high-strength cement, selected aggregates and special additives according to a formulation developed in the MAPEI Research and Development laboratories and is supplied in 25 kg bags. Component A must be mixed with 6.5% by weight of component B (HPC Fibres) stiff steel fibres.

To allow the product’s expansive properties to develop fully and correctly, Planitop HPC must be cured in a damp environment. To allow expansion in the open air, Planitop HPC may also include 0.25% of Mapecure SRA, a special admixture which has the capacity to reduce plastic and hydraulic shrinkage.

Mapecure SRA carries out an extremely important role and guarantees better curing of the mortar. When mixed with Planitop HPC it may be considered a highly advanced technological system, in that the admixture has the capacity of reducing the water evaporation and encourages the development of the hydration process.

Mapecure SRA acts as an internal curing agent and thanks to its interaction with some of the main components in the cement, reduces final shrinkage by 20% to 50% compared with the same product without the admix, which means there is also a lower risk of cracking.

The use of Mapecure SRA may reduce the mechanical properties by 5-6%.

The product may also be used without adding Mapecure SRA when climatic conditions allow a favourable curing cycle to be carried out.

Quick Links - Click To Jump To Section:

• Features & Benefits
• Recommendations & Limitations
• Application & Preparation

Features & Benefits

Once hardened, Planitop HPC has the following characteristics:

• Very high flexural and compressive strength
• High ductility
• High resistance to cyclical loads
• Impermeable to water
• Excellent adhesion to old concrete, if dampened with water before application, and to reinforcement rods, especially if treated beforehand with Mapefer or Mapefer 1K
• High resistance to wear due to abrasion or impact
• Complies with the principles defined in EN 1504-9 (“Products and systems for the protection and repair of concrete structures: definitions, requirements, quality control and evaluation of conformity. General principles for use of products and systems”), and the requirements of EN 1504-3 (“structural and non-structural repair”) for R4-class structural mortars and the minimun requirements EN 1504-6 (“anchoring of reinforcing steel bar”)
• covered by the Certificate of Technical Assessment (CVT) n° 264/2020 released by 2^ Div. II of STC - CSLP

Recommendations & Limitations

• Do not use Planitop HPC on smooth concrete substrates
• Do not use Planitop HPC for fixing elements accurately in place (use Mapefill or Mapefill R)
• Do not apply Planitop HPC by spray or with a trowel (use Planitop HPC Tixo applied by trowel)
• Do not add cement or additives to Planitop HPC
• Do not add water once the mix has started to set
• Do not use Planitop HPC if the bag is damaged or if it has been opened previously
• Only use bags of Planitop HPC which have been stored on their original, covered pallets
• In hot weather, store the product in a cool area and use cold water to prepare the mix.
• In cold weather, store the product in an area protected from frost at a temperature of 20°C. Use lukewarm water to prepare the mortar
• After stripping the formwork, Mapei recommend curing Planitop HPC carefully to prevent the mixing water evaporating too quickly, especially in hot or windy weather, otherwise surface cracks may appear. Planitop HPC must be protected at all times by spraying the surface with a water mist while pouring operations are being carried out. Cover the surface with waterproof sheets and keep covered for at least 5 days.

Application & Preparation

Please refer to the data sheets in the tab above for further information.