STABILPAV - Промышленное цементное покрытие

It is possible to realise floors without contraction joints thanks to the use of STABILPAV technology: the use of the additives GiNIUS and EXPANCOLL, combined with the insertion of a double metal reinforcement near the two edges of the section, makes it possible to create a state of coercion similar to that of prestressing, which compensates for hygrometric shrinkage.‎ With this system, quadratures of 1000 m 2 have been realised without contraction joints.‎ STABILPAV Industrial concrete floors must be considered to all intents and purposes as real structures, the design and construction of which must be carefully monitored at all stages, from the engineering assessment of loads and stresses to the definition of the concrete mixes and the appropriate planning of the castings on site and the subsequent stages relating to surface treatments and curing, naturally with all the necessary controls.‎ The absence or lack of attention to even just one of these aspects can compromise the overall quality of the work.‎ Think for example of the design of the distance between the contraction joints of an industrial concrete floor: the determination of this aspect represents one of the most significant unknowns in order to satisfy the need to have a floor as continuous as possible while avoiding the formation of surface cracks.‎ Based on its know-how and experience, General Admixtures spa (G.‎A) has developed a number of systems for the design of industrial flooring and a series of formulations of new types of Admixtures and Concrete Additives which constitute an important technological evolution.‎ The concretes containing these technologies improve in terms of rheology, mechanical performance and durability, with important innovations in the installation phase.‎ STABILPAV is the technology developed to improve the performance of concretes intended for industrial floors with compensated shrinkage.‎ STABILPAV involves the combined use of two additives: - EXPANCOLL powdered expansive agent to compensate for shrinkage by pre-compressing the structure chemically - GINIUS FLOOR additive for curing the concrete to allow the expansive phenomena to form correctly.‎ With STABILPAV it is possible to go further and create floors without contraction joints by combining the insertion of a double metal reinforcement near the two edges of the cross-section of the concrete slab.‎ This creates a state of compaction similar to prestressing, which compensates for hygrometric shrinkage.‎ With this system, quadratures of 1000 m2 have been realised without contraction joints.‎ Characteristics The characteristics of STABILPAV technology are summarised below.‎ STABILPAV TECHNOLOGY COMPENSATED SHrinkage CONCRETE FLOORING ADDITIVES GA: GINIUS FLOOR + EXPANCOLL REINFORCEMENT: Double metal mesh SHrinkage: Compensated shrinkage, thanks to the GiNIUS - EXPANCOLL synergy CONTRACTION JOINTS: No contraction joints for squares of approx.‎ 1000 m2 CURING: Moist curing is recommended, for 72 hours, with wet sheets to promote expansion.‎ Below are the characteristics of concretes containing GINIUS FLOOR and EXPANCOLL additives.‎ CONCRETE ADDITIVATED WITH GINIUS FLOOR and EXPANCOLL w/c: Reduction (approx.‎ 20%) of mixing water Rck: Reduction of w/c durability: Increase of Rc - Increase of durability Appearance: Increased cohesion, completion of the grain size curve with the introduction of fine particles.‎ Ease of placement by pumping.‎ Workability and its maintenance over time: Increase in workability up to consistency classes S5 compared to a non-additive concrete of the same w/c and maintenance of workability for more than 1 hour.‎ Setting times: In the summer period they are delayed so as to facilitate placement of surface dusting and finishing operations.‎ In the winter period they are accelerated so as to reduce setting times.‎ Concrete containing these technologies improves in terms of rheology, mechanical performance and durability.‎ The improved concrete performance also leads to an increase in the service life of the pavement, due to the increased durability of the material, and a reduction in maintenance and/or repair costs.‎