Non shrink grout is a type of material that does not shrink. This is a cementitious material that does not reduce its volume when it getting harden like normal concrete. The final volume will be greater or equal to the initial volume of the concrete.
Non shrink grout some times called construction grout. It should be noted that it is required to have non shrink property and in addition to the other technical requirements. It sometimes acts as the load transfer medium in structures.
Uses of the None Shrink Grout
There are many applications of the non shrink construction grouts.
Shrinkage-Compensation is a method used in concrete flooring where chemical additives or expansive cement is added to a concrete mix and the resulting expansion, if properly restrained, helps to offset strains caused by drying shrinkage. This is used to minimize the cracking caused by the initial drying shrinkage of the floor.
Steel fiber-reinforced concrete is concrete that utilizes steel fibers in the mix to provide the ductility and tensile strength that conventional concrete lacks. Contrary to concrete that uses rebar as reinforcement, which provides this strength in one or two directions, when properly mixed, steel fibers are homogenously spread throughout the floor and provide tensile strength in all directions.
Micro concrete is a cement-based grout for structural repairs. It is a specialized high strength non-shrink, free-flow concrete. It is durable and can be applied easily poured into surfaces internally and externally of the structure. It is used for strengthening, retrofitting & repairing of structural and non-structural elements of building columns, beam jacketing, slab & bridge repairing. It’s ease of use and the bonding properties, the material became the product of choice to effectively repair cracked or aging concrete structures. It is manufactured to fulfil the requirements of structural repairs such as low shrinkage properties, flowable concrete, workability, hardening properties, quick strength & minimal curing.
Different advantages of micro concrete
Polymer-modified mortar and concrete are prepared by mixing either a polymer or monomer in a dispersed, powdery or liquid form with fresh cement mortar and concrete mix.
Polymer-modified mortars are widely used for repair purposes because of their minimized shrinkage and ability to bond with the densest surfaces. It is used for repairing cracks and delamination of concrete structure and cracks.
Polymer modified concrete overlays are an alternative to breaking out and replacing an existing concrete slab, which can be expensive, messy, disruptive, and time-consuming. Polymers are added to the concrete mixes either in the form of an aqueous emulsion or in a dispersed form.
Most epoxy is not UV resistant.
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