Non-slick surface-seeded aggregate concrete and method of forming

Abstract

A non-slick surface-seeded exposed aggregate concrete product and method of making the same enhances the coefficient of friction of an exposed surface thereof to reduce undesirable slipping and sliding. Implementations of the present invention are characterized by the use of fine sand and aggregate broadcast over the exposed surface, which surface has been prepared to receive the same. After curing, the exposed surface is then ground and acid-etched to define fissures, cracks, and / or sharp edges of the aggregate. Subsequently finishing steps are performed to produce the non-slick concrete product which may be used for high traffic pedestrian areas where foot gripping and traction are important, such as on stairs, ramps, walkways, courtyards, and the like.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]Not ApplicableSTATEMENT RE: FEDERALLY SPONSORED RESEARCH / DEVELOPMENT[0002]Not ApplicableBACKGROUND[0003]the present invention relates to exposed aggregate concrete and, more particularly, to an improved non-slick surface-seeded exposed aggregate concrete and method of producing the same.[0004]as is well known, concrete is extensively utilized as a building material for industrial, commercial, and residential applications. Due to its durability, wear resistance and cost economy, concrete has gained widespread use in flooring applications. With this widespread use, Applicants have developed various improvements in concrete flooring products and methods of forming such products. Exemplary improvements include variations in color and surface texture of concrete such that the concrete possesses the aesthetics typical of more costly flooring surfaces such as marble, stone and granite.[0005]In developing innovative improvements to concrete floor...

AI Technical Summary

Benefits of technology

The method creates a surface with a higher coefficient of friction, ensuring sure foot grip and preventing slipping, while maintaining an attractive appearance similar to stone or marble flooring, eliminating the need for additional traction materials.

Problems solved by technology

Unfortunately, such large aggregate size also limited the widespread use of the technique in flooring applications.

However, one limitation on the variety of surfaces producible was the non-compatibility of certain materials in the concrete mixture.

Siliceous materials found in concrete aggregate were known to react with alkalis in Portland cement, creating siliceous gels which lead to expansion, cracking and exudations upon exposed surfaces.

Minerals other than silicates found in concrete aggregate appear to react to an insignificant extent and are usually deemed innocuous.

More recently, additional drawbacks associated with concrete flooring products have come to light in certain high traffic areas where foot gripping and traction are important.

In particular, various exposed aggregate concrete products may have a slick surface finish which may be undesirable for these high traffic areas.

Although slick surface finishes may usually be safe, materials that form slight surface films, such as liquids, dust, dirt, or other such contaminants may lessen the traction of slick surface finishes.

The result is a lack of proper grip or traction, which may cause an individual to slide or slip while walking thereupon.

Nevertheless, such materials often decrease the aesthetic appeal of the floors and because they are merely additions to the floor, these materials often become dislodged or peel away from the floor as a result of normal wear and tear.

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