Description:

Shrinkage-compensated fibre-reinforced mortar for concrete repair. Mapegrout Thixotropic Zero is part of the CO Fully Offset in the Entire Life Cycle line of products. CO emissions measured throughout the life cycle of products from the Zero line in 2023 using Life Cycle Assessment (LCA) methodology, verified and certified with EPDs, have been offset through the acquisition of certified carbon credits in support of renewable energy and forestry protection projects. A commitment to the planet, to people and to biodiversity. For more details on how emissions are calculated and on climate mitigation projects financed through certified carbon credits, visit the webpage zero.mapei.com.

Tcchnical Characteristics :

Mapegrout Thixotropic Zero is a ready-mixed powdered mortar composed of high-strength cements, selected aggregates, special additives and synthetic fibres prepared according to a formula developed in the MAPEI Research & Development laboratories.
Thanks to its particular formulation the product has excellent fatigue behaviour up to at least 300,000 cycles, which gives repaired structures a high level of resistance to cracking, including when subject to dynamic loads induced during normal service conditions.This particular characteristic, together with the requirements of EN 1504, helps increase the durability of
elements restored withMapegrout Thixotropic Zero.
When mixed with water, Mapegrout Thixotropic Zero becomes an easily workable mortar with high thixotropic properties that can be applied on vertical surfaces without sagging even in great thicknesses and with no need for formwork. If Mapegrout Thixotropic Zero is prepared by only adding water, it must be cured under damp conditions in order to guarantee that the product expansive properties develop completely and correctly. Unfortunately, it is not easy to guarantee that these conditions are created on site.
However, to guarantee that the expansive properties of Mapegrout Thixotropic Zero are carried out in the open air, 0.25% of Mapecure SRA, a special additive which has the property of reducing both plastic and hydraulic shrinkage, may be used to great advantage when added to the mix. Mapecure SRA has a very important role to play, in guaranteeing better curing of mortar. Also, when mixed with Mapegrout Thixotropic Zero, it may be considered a technologically advanced system, in that the additive has the capacity of slowing down evaporation of the water and of promoting the development of hydration reactions. Basically, Mapecure SRA behaves like an internal curing agent and, thanks to its interaction with some of the main components which make up the cement, it helps to reduce shrinkage by between 20% and 50% compared with the standard values of the product without the additive. This will obviously lead to a reduced risk of cracking. Once hardened, Mapegrout Thixotropic Zero has the following properties:
Very high flexural and compressive strengthmodulus of elasticity, coefficient of thermal expansion and permeability to water vapour similar to those of high quality concrete WaterproofHigh adhesion to old concrete, provided it has been soaked with water beforehand, and also to reinforcing rods, especially if they have been treated with Mapefer or Mapefer 1K Zero;
High resistance to abrasion.
Mapegrout Thixotropic Zero is a product with very low emission of volatile organic compounds (VOC), which
safeguards the health and safety of installers and final users. It is certified as EC1 Plus by the Germanassociation GEV.
Mapegrout Thixotropic Zero helps earn important LEED credits.
Mapegrout Thixotropic Zero 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.