Mapegrout SV is a one-component, pre-blended mortar in powder form, made up of specific 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 floorings for industrial use, shopping centres and warehouses
• Repairing concrete floorings in airports
• Repairing pedestrian concrete pavements
• Fixing road signs
• Fixing concrete pylons for electricity lines or telephone lines
• Fixing fencing
• Fixing general highway coating materials
• Anchoring kerbstones and protection barriers
• Fixing drain covers and gas, electric and phone-line inspection shafts

Technical Characteristics

By varying the amount of mixing water accordingly, Mapegrout SV takes on either a fluid or highly fluid consistency. This makes the mortar suitable for casting, even at a greater thickness (up to 5 cm), into formwork or a defined space, without the risk of segregation.

For thicknesses over 5 cm, Mapegrout SV must be blended with 40% of Gravel 6/10. Thanks to its fast-setting properties, Mapegrout SV may take light foot traffic and may be even subject to wheeled traffic after approximately 2 hours from application at a temperature of +20°C.

Its special composition and the special admixtures contained in the product give the mortar high mechanical strength even after a very long period of time, and make it waterproof and with high resistance to abrasion.

Mapegrout SV 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
• Do not use Mapegrout SV if the packaging is damaged
• Do not add water once the mix has started to set
• Do not apply Mapegrout SV on asphalt or surfaces treated with bitumen
• Do not apply Mapegrout SV on smooth surfaces. Roughen the substrate (irregularities of at least 5 mm) and, where necessary, add contrast reinforcement
• Do not use Mapegrout SV if the temperature is lower than 5°C. If it is necessary to use the product at a temperature which is not within the recommended temperature range, please contact our Technical Department on 0113 2455450 (option 2) or send a message to [email protected]
• Mapegrout SV hardens very fast. Therefore, it is recommended to mix only amounts that may be poured within 15 minutes after preparation

Application Procedure

Preparation of the substrate

• Remove damaged or loose concrete until a sound, strong and rough substrate is obtained
• Eliminate traces of paint, oil, powder and any other material which may impede the adhesion of Mapegrout SV to the substrate
• Saturate the substrate with water
• Before casting, wait until the excess water has evaporated. If necessary, this phase may be speeded up by using compressed air

Preparation of the mortar

Pour 12-13% of water (3.0-3.25 litres for each 25 kg bag), according to the consistency required, into a cement mixer. Slowly add Mapegrout SV and mix for 1-2 minutes.

Remove all traces of powder not perfectly blended from the inside surface of the mixer and continue mixing for 2-3 minutes, until a completely homogenous paste is obtained.

If the thickness to be laid is greater than 5 cm, mix Mapegrout SV with 40% of Gravel 6/10 and use 14% water for mixing (by weight of the mortar - 3.5 litres for each bag of Mapegrout SV).

Mapegrout SV remains workable for approximately 15 minutes at a temperature of 20°C.

Applying the mortar

Pour Mapegrout SV into the area prepared without the use of vibration, and smooth off the surface immediately with a trowel.

If necessary, after laying inspection shafts or manholes, re-asphalt the area. A thickness of at least 3 cm is recommended to allow the bitumen layer to adhere well and to withstand the passage of traffic without yielding.

Precautions To Be Taken During And After Application

Low temperatures

• Make sure that the substrate is not frozen and protect the product from frost during the first 24 hours after applying
• Mix the product with lukewarm water
• Before using the product, protect it from frost and store it in a dry place

High temperatures and/or windy conditions

• Always saturate the substrate with water
• Mix the product with cold water
• Protect the fresh surface of the mortar from quick evaporation, which could cause plastic shrinkage cracks, with Mapecure S or Mapecure E

Cleaning

Fresh mortar may be removed from tools used to prepare and apply the mortar with running water.

Once hardened, cleaning is much more difficult, and the mortar must be removed mechanically.

Consumption

• Used neat: 20 kg/m² per cm of thickness
• Blended: – 14.5 kg/m² per cm of thickness; (5.7 kg/m² Gravel 6/10)

Technical Data