Description Mapei Mapefill GP Non Shrink Grout is a general purpose non-shrink grout recommended for grouting voids in structural elements such as: filling gaps in precast elements, and grouting base plates and bridge bearings. Some application examples: Anchoring of mechanical equipment. Anchoring of steel bars. Filling of rigid joints between elements in concrete and precast concrete structures. Execution of underpinning. Pressure grouting of concrete structures. Grouting of machine baseplate, bridge bearing. Concrete repairs. Mapei Mapefill GP is a preblended powdered grout based on high strength cement, graded aggregates with 1 mm diameter and special additives with an expansive agent formulated by the MAPEI research laboratories. When mixed with water Mapei Mapefill GP is transformed into a very highly fluid grout without segregation that is able to fill intricate spaces. Mapefill GP, due to its expansive agent, is characterized by a total absence of shrinkage in the plastic (ASTM C827) and hardened phase, and develops early flexural and compressive strength. Mapei Mapefill GP also has the following qualities: excellent impermeability to water; excellent adhesion to iron and concrete; excellent resistance to dynamic mechanical stress; modulus of elasticity and thermal expansion coefficient similar to those of high quality concrete; Mapei Mapefill GP does not contain metal aggregates and aluminium dust; non-toxic; non-corrosive; chloride-free. Mapei Mapefill GP meets all the main requirements for ENV 1504-9 (“Products and systems for the protection and repair of concrete structures; definitions, requirements, quality control and conformity assessment. General principles for the use of products and systems”) and the minimum requirements for EN 1504-6 (“Anchoring steel reinforcement”). Recommendations: Do not add cement or additives to Mapei Mapefill GP. Do not add water when the mix begins to set. Do not use Mapei Mapefill GP if the bag is damaged or has already been opened. Do not apply Mapei Mapefill GP at temperatures below 5°C. Technical Mixing Information: Trowellable mix 25 kg of Mapefill GP with 3.25-3.75 litres of water Pumpable mix 25 kg of Mapefill GP with 3.75-4.25 litres of water Pourable mix 25 kg of Mapefill GP with 4.25-4.75 litres of water Permitted application temperature Ambient and substate temperature from 5 °C to 40 °C Pot life of mix 1 Hour at (20°C) Preparing the substrate: Remove all deteriorated concrete down to sound substrate. Scarify the surface and eliminate completely dust, oil, grease, debris and laitance. Soak the sides of the cavity to be filled with water. Before pouring, remove all excess water. To facilitate the elimination of unabsorbed water, use compressed air if necessary. Preparing the grout: Pour up to 80% of the required water (see APPLICATION DATA) into a clean container and slowly add Mapei Mapefill GP continuously. Add remaining water to achieve the desired mix. Mix for 1 to 2 minutes with a heavy duty mixer, remove from the sides of the concrete mixer any powder that is not well blended; remix for another 2 to 3 minutes until a fluid homogeneous paste is obtained. According to the quantities to be prepared, a grout mixer or a mechanical mixer can be used paying careful attention to avoid the formation of air bubbles. Mixing by hand is not recommended. Instructions for the preparation of the mortar to create samples for Lab testing are contained in the TECHNICAL DATA table. Application (anchoring): Pour Mapei Mapefill GP from one side only in a continual flow encouraging the discharge of air bubbles. The use of Mapei Mapefill GP for connecting precast concrete elements and the filling of rigid joints is recommended for thickness up to 10 cm. It is not necessary to vibrate the grout mechanically; to facilitate the filling of spaces that are particularly difficult, an iron rod. Grouting of thick section: For filling cavities that have dimensions greater than those indicated, please consult the Mapei Technical Service for Assistance. Precautions to be taken during and after application: At temperatures around 20°C, no particular precautions are required. In hot weather it is advisable not to expose the material to sun and to use cold water in preparing the mix. In low temperatures it is advisable to use water that is at 20°C. After casting, Mapei Mapefill GP must be properly cured; the surface of grout exposed to the air must be protected from rapid water evaporation that can cause the formation of surface cracks due to plastic shrinkage especially in hot and/or windy weather. Spray water on surface exposed to air the first 24 hours of curing or apply an antievaporant. Cleaning: Fresh grout can be removed from tools with water. After curing, cleaning becomes very difficult and can only be done mechanically. Consumption: Every 25 kg bag of Mapei Mapefill GP can yield 13-14 litres of grout. Technical Data: Conformity with: UKCA 1504-6 & EN 1504-6 Type: CC Consistency: Powder colour: Grey Chloride ion content – minimum requirements ≤ 0.05% – according to EN 1015 – 17%: ≤ 0.05 Max. Diam of aggregate (mm): 1 Colour of mix: grey Consistency of mix: Super fluid Density of mix: 2200 kg/m³ Flow (ASTM C 939): <60 sec Initial setting time: 7 Hours Final setting time: 8 Hours Product Datasheet Click here to view this product on the manufacturers website.
