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Bulk Bags or FIBC fabrics are all about controlling static electricity, which is an imbalance of electric charges within or on the surface of a material. When bulk bags are rapidly filled and discharged, the flowing movement of finely powdered substances can cause a buildup of static electricity. Removing or preventing an electrical charge is […]

In this article, we will review an acceptable approach to adjusting concrete mixes with high dosages of Macrosynthetic Fibers, such as ABC Polymer’s FiberForce 650™, Performance Plus DOT™ and Macro-Pro™, are used as reinforcement in the concrete at dosage levels from 3.0 to 11.0 pcy. The Basics When we talk about a standard concrete mix design […]

When using conventional temperature-shrinkage steel reinforcement the Structural Engineer tends to use a one-size-fits-all approach on projects to offset the potential for the field crew to place the wrong reinforcement system in a cross-section. Too often the Structural Engineer determines what temperature-shrinkage reinforcement is needed for the most demanding concrete application and then specifies that […]

This specification is specific to the use of Macrosynthetic-Fiber Reinforced Concrete as secondary/temperature-shrinkage reinforcement and post-first crack reinforcement. The purpose of this document is to assist design professionals in the preparation of project or office master specifications. It follows guidelines established by the Construction Specifications Institute and, therefore, may be used with minor editing in […]

This Addendum is to be used in conjunction with ACI 522.1 Specification for Pervious Concrete Pavement ACI 522.2.23 Fibers reads: The use of fibers in pervious concrete is permitted when approved by the Architect/Engineer. Important: ACI 522.3.13.1 Opening to Traffic reads: Do not open the pavement to vehicular traffic until the concrete has cured at least 7 uninterrupted days … […]

Ultra-Thin Whitetopping or UTW is a reversal of normal highway maintenance practice. Instead of Hot Mixed Asphalt (HMA) being placed on top of failed concrete, concrete is placed on failed HMA, more specifically, Fiber Reinforced Concrete (FRC). The Federal Highway Administration has approved UTW and has participated in a number of demonstration projects sponsored by […]

The synthetic fiber reinforcement approved for use as temperature-shrinkage reinforcement in concrete is described in ASTM C1116, Section 4.1.3 and Note 2. The chemical base of the synthetic fiber resins that are compatible with a cement concrete is listed. International Code Council (ICC) has adopted a performance-based specification for Fiber Reinforced Concrete (FRC) as either […]

We know there is a major technical advantage in using synthetic fibers versus wire mesh. The quantifiable evidence shows that the 3-dimensional fiber reinforcement is proactive whereas the single layer of wire mesh, at best, is reactive. The economic benefits significantly multiply the value of using Fiber Reinforced Concrete. Here is how to compare the […]

Nowhere in ACI’s 318 can one find any reference to the substitution of structural steel with micro or macro synthetic fibers. Plainly stated when the area of the steel is used in the structural design of the cement concrete-steel composite element then the synthetic fibers cannot replace the steel in question. None of the standard design […]

A: Most ready mix concrete sales people are not aware of the process required to secure a change order to the specifications for a given project when desiring to replace the wire mesh with Fiber Reinforced Concrete or to offer an alternative to the FRC system specified. Actually, there are two roads that can be […]