What is Concrete Surface Enhancer

The concrete surface enhancer is a water-soluble liquid chemical hardener with a colorless and transparent appearance. There are single-component materials and two-component materials that are common on the market. The main components of concrete surface enhancers are reactive alkali metal silicates or modified alkali metal silicates, catalysts, auxiliary agents, etc. Visit this pagehttps://kingsunconcreteadmixtures.com/concrete-admixtures/ to get more information.

Reaction principle

The concrete surface enhancer has extremely low surface tension, can quickly penetrate into the interior of the concrete, and react with the by-product of cement hydration in the concrete, such as calcium hydroxide, to generate a large amount of silica gel, which can block The capillary micropores inside the concrete increase the compactness, compressive strength, hardness and wear resistance of the concrete surface, and generally increase the strength of the concrete by 15-30%. The chemical reaction of some two-component concrete surface enhancers and related components in concrete is more complicated. In addition to the formation of silica gel, some hard and dense substances are also generated, which makes the strength of concrete increase more obvious. The two-component cement floor sanding treatment agent belongs to this type of material. It can harden the cement concrete floor with poor surface strength, dusting, and sanding to no sand or dust at all.

Scope of application

The concrete surface enhancer must be applied to the already formed cement mortar or concrete surface:

1. In order to ensure that the concrete surface enhancer can penetrate more into the concrete, it is recommended to construct the new cement mortar or concrete surface (preferably with a machine to light) after at least 7 days of wet curing and complete drying. Of course, in order to save materials and construction period, certain concrete surface enhancers are applied 24 hours after the completion of the new construction ground.
2. Due to various reasons, the cement mortar or concrete ground surface has insufficient strength, dusting, and sanding, and concrete surface enhancers can be used for hardening and dust-proof treatment: the surface hardness and wear resistance of the treated ground are significantly increased. There is no ash and no sand, but this treatment method does not change the appearance of the original ground, so it will not repair the damage of the original ground. If you want to repair the original ground damage (such as potholes, cracks, etc.), you must take the method of repair or overall polishing.
3. Surface sealing and reinforcement of terrazzo floor or emery wear-resistant floor: If it is polished and polished with a machine, both types of floor can have an effect similar to that of a marble floor.
4. Surface enhancement of concrete products or concrete components containing cement components: For the surface enhancement of concrete components, it should be noted that the better the original strength of the concrete components, the smaller the improvement of the concrete surface enhancer. For C30 and above For the concrete, the concrete surface enhancer has little ability to improve its strength.

Construction method

The common construction method is spraying with low-pressure nozzles, such as sprayers, and roller coating.

Spray the concrete surface enhancer evenly on the base surface, and the hard-bristled broom sweeps back and forth to promote penetration. When the water evaporates, the surface becomes sticky or no visible water is visible, spray a small amount of water in time to keep it moist, the whole time lasts about 4 hours Around, after the last spray of clean water, remove the surface water and dry naturally. The hardening effect is obvious after 24 hours.

If the overall construction process is combined with a stone refurbishment machine or floor scrubbing machine for polishing and polishing, the concrete surface enhancer will penetrate more thoroughly and the finished concrete surface will have better brightness.

Kingsun is a professional concrete admixtures manufacturer and supplier.