Cementitious Spray Dryer Ash-Tire Fiber Material for Maximizing Waste Diversion

Cementitious Spray Dryer Ash-Tire Fiber Material for Maximizing Waste Diversion

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Spray dryer absorber (SDA) material, also known as spray dryer ash, is a byproduct of coal combustion life extension blueberry extract and flue gas scrubbing processes that has self-cementing properties similar to those of class C fly ash.SDA material does not usually meet the existing standards for use as a pozzolan in Portland cement concrete due to its characteristically high sulfur content, and thus unlike fly ash, it is rarely put to beneficial use.This paper presents the results of a study with the objective of developing beneficial uses for SDA material in building materials when combined with tire fiber reinforcement originating from a recycling process.

Specifically, spray dryer ash was investigated for use as the primary or even the sole binding component in a mortar or concrete.This study differs from previous research in that it focuses on very high contents of spray dryer ash (80 to 100 percent) chainsaw file in a hardened product.The overarching objective is to divert products that are normally sent to landfills and provide benefit to society in beneficial applications.