Mapegrout SV T is a one-component, pre-blended, shrinkage compensated thixotropic mortar in powder form, made from special hydraulic binders, high-strength cement, graded aggregates and special admixtures.

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• Features & Benefits
• Technical Characteristics
• Recommendations
• Application Procedure
• Precautions To Be Taken During And After Application
• Cleaning
• Consumption
• Technical Data

Features & Benefits

• Repairing concrete floors used in industry, shopping centres and warehouses
• Repairing concrete road surfaces in airports
• Repairing roadside pavements
• Repairing access ramps
• Repairing concrete overflow channels
• Fixing road signs in place
• Fixing concrete electricity and telephone pylons in place
• Fixing fences in place
• Fixing urban fixtures in place
• Anchoring protective barriers and crash barriers in place
• Fixing gratings for overflow channels in central reservations and kerbstones in place
• Fixing drain covers and manhole covers for gas, electricity and phone companies in place

Technical Characteristics

Mapegrout SV T is suitable also where large thicknesses need to be applied (up to 5 cm), in specially-prepared areas without the use of formwork. Up to 12 cm where formwork is used.

Thanks to its rapid hardening properties, Mapegrout SV T may be stepped on and opened to rubber-wheeled traffic after only 2 hours from application at a temperature of +20°C.

Thanks to its special composition and the admixtures contained in the product, the mortar has high mechanical properties even after a long period of time, is impermeable to water and is considerably resistant to abrasion.

Mapegrout SV T meets the requirements defined by 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 the use of products and systems”) and the minimum requirements claimed by EN 1504-3 (“Structural and non structural repair”) for structural mortars of class R4.

Recommendations

• Do not add cement or admixtures to Mapegrout SV T
• Do not use Mapegrout SV T if the bag is damaged
• Do not add water once the mix has started to set
• Do not apply Mapegrout SV T on asphalted surfaces or on surfaces treated with bitumen
• If the surface is subject to heavy traffic and dynamic stress and vibration, we recommend adding metallic fibres to the product
• Do not apply Mapegrout SV T on smooth surfaces. Substrates must have a rough surface (at least 5 mm of roughness) and, if necessary, reinforcement rods may be inserted
• Do not use Mapegrout SV T if the temperature is lower than 5°C or higher than 35°C. If the product is to be applied at temperatures not included within this range, please consult our Technical Department on 0113 2455450 (option 2) or send a message to [email protected].
• Mapegrout SV T sets very quickly. Therefore, we recommend mixing only quantities of the product which will be laid within 10 minutes of preparation

Application Procedure

Preparation of the substrate

• Remove all concrete which has deteriorated or is at risk of detachment, until a solid, strong rough substrate is obtained. Remove all loose parts by suitable methods. All previous repair work which is not perfectly bonded must be removed
• Eliminate all old paintwork, oil, dust and any other material which may impede the bonding of Mapegrout SV T to the substrate
• Saturate the substrate with water
• Before applying the product, wait until all excess water has evaporated. If necessary, use compressed air

Preparing the mortar

• Pour the minimum amount of water into a cement mixer (3.1-3.4 litres per 25 kg bag). Slowly add Mapegrout SV T and mix for 1-2 minutes. Remove all the powder which has not blended with the mix from the sides of the mixer and continue mixing for 2-3 minutes, until a smooth, homogenous blend is obtained

Laying the mortar

• Apply Mapegrout SV T using a trowel in the pre-prepared area
• Compact the mortar to get rid of any voids, either manually with a trowel or with a vibrator with a pronged fitting
• Smooth off the surface immediately with a finishing trowel

If required, after fixing drain covers or manhole covers in place, lay fresh asphalt around the area. We recommend applying a layer of at least 3 cm thick in order to bond well and to bear the weight of traffic without cracking.

Precautions To Be Taken During And After Application

In cold weather

• Make sure the substrate is not frozen, and protect the product from frost for 24 hours after laying
• Mix the product with tepid water
• Before use, store the product in an area protected against damp and frost

In hot and/or windy weather

• Saturate the substrate with water
• Mix the product with cold water
• Protect the fresh mortar surface against rapid evaporation of the water with Mapecure S or Mapecure E to avoid the formation of shrinkage cracks

Cleaning

While still fresh, the mortar may be removed from work tools with running water. Once set, it is difficult to remove the mortar and cleaning must be carried out using mechanical means.

Consumption

20 kg/m² per cm of thickness.

Technical Data