Recodi’s earliest successes with jointless concrete floors date from 1981. Traditional industrial concrete floors are generally made using casts of 1000 m2 each, which are then cut into squares. These cuts, made with diamond disc cutters, are simply contraction joints. Concrete is formed by the blending of a hydraulic binding agent (cement) and aggregates (stone chippings and sand), which when mixed with water form a more or less fluid paste. The water in the paste tends to evaporate, based on the climatic conditions, and the concrete will thus lose volume, triggering what are known as “drying shrinkage cracks”. In an industrial floor, the contraction joints serve to allow for the regular shrinkage of the concrete mass, “inviting” it to form cracks within the joints themselves. The joints are in any case sensitive to vehicle traffic and are a main source of degradation of the floor. How is it possible to avoid all of this?
The answer is to lay a jointless concrete floor, even on a large scale, using specific concrete mixes with special reinforcements. Floors of this type require a very careful mix design of the concrete, and the area to be floored must have a particular layout. The laying of an jointless industrial floor is not a simple operation, requiring as it does not only considerable experience, adequate preparation and the application of the highest quality standards.
The benefits obtained are considerable, allowing for a substantial saving on the cost of maintaining both the joints and the fork-lift trucks being driven over them.
Jointless floors arose out of a desire to meet the needs of the logistics industry, where the absence of joints on the floor is crucial for increasing productivity and safety in the handling of goods. The same technology has since been rolled out to all industrial sectors. Accordingly, the benefits and the significant savings on maintenance reported by our clients encouraged us to offer the jointless solution under all appropriate circumstances.