GILCO FIBERS™

Uses

GILCO FIBERS™ may be used in any application where decreased plastic shrinkage cracking and improved durability are desired. Specifically, such applications include but are not limited to, slabs on grade, pavements, overlays, sloped walls, pools, shotcrete, stucco, precast and prestressed products. It is suggested that this product be used in conjunction with properly compacted base materials and jointing in accordance with ACI guidelines and standards.

Gilco Fibers may be used as an alternative to welded wire fabric, depending on the application. Gilco Fibers may not be used as a replacement for structural or post-crack control steel reinforcement. For temperature or shrinkage post-crack control, please consult a GCP Applied Technologies representative regarding our STRUX® synthetic macro fibers.

Product Advantages

Gilco Fibers uniformly distribute multi–dimensionally throughout the concrete. The fibers in the fresh concrete matrix provide reinforcement for the mixture while its tensile strength is weakest The reinforcement reduces the formation of all types of early age cracking. This cracking caused by plastic shrinkage, settlement and other internal stresses would otherwise permanently weaken the resultant concrete. The concrete permeability is decreased, while the surface characteristics, impact and toughness properties are slightly improved. Together these effects work synergistically to produce a long-term, better quality, more durable and serviceable concrete.

Product Advantages

• Reduces plastic shrinkage cracking and improves durability
• Protects concrete from stresses that cause cracking
• Provides cost effective control of plastic shrinkage
• Provides overall higher quality of concrete

Typical Properties

Addition Rates

Gilco Fibers may be added to concrete at any point during the batching or mixing process. Gilco Fibers may be added to the aggregate during weighing or charging, or to the central mixer or transit mixer before, during, or after charging. The load must be mixed at mixing speed for 5 minutes, or 70 revolutions, after the addition of the fibers to ensure uniform distribution. The standard range of addition for Gilco Fibers is ¾ to 1½ lb/yd³ (450 to 900 g/m³) of concrete. Typically, 1 lb/yd³ (600 g/m³) of Gilco Fibers provides excellent results when tested according to ASTM C1579. Higher addition rates may be used to produce concrete when special properties are required.