Abstract
The use of energy from wood biomass plants results in the production of large quantities of wood biomass ash (WBA). Most of the WBA is disposed of and some are used as a soil supplement in agriculture. In the concrete industry, there is a high potential for substitution of certain components with suitable alternative materials. Depending on its physical and chemical properties, WBA can be used in concrete production as a partial replacement for cement or as a substitute for fine aggregates. The suitability of locally available WBA should be evaluated in terms of microtexture, chemical, and mineralogical composition. This paper presents the types of WBA produced by different combustion technology, the influence of WBA as a cement replacement on the properties of cement composites in the fresh and hardened state, an overview of the environmental impact of WBA cement composites, and the market opportunities and readiness for reuse of WBA as a new potential supplementary cementitious material.
Highlights
The policy of promoting and increasing the use of wood biomass as a renewable energy source affects the increase in the amount of wood biomass ash (WBA) produced [1]
The objectives of this chapter are: (1) to determine what types of combustion technologies are currently in use and what types of WBA are produced by each combustion technology, the properties of these WBAs, and the factors that most influence WBA properties, as well as the physical and chemical properties that could influence the use of WBA in cement composites; (2) to assess the influence of WBA as a cement replacement on the properties of cement composites in the fresh and hardened states; (3) to provide a brief overview of the environmental impact of the use of WBA in the mortar and concrete mixes; and (4) to identify the market opportunities and readiness for reuse of a new potential supplementary cementitious material (SCM)
In the design and planning phase of biomass power plants, it is important to determine the amounts of WBA generated and to find sustainable solutions for WBA management during the life cycle of the power plant
Summary
The policy of promoting and increasing the use of wood biomass as a renewable energy source affects the increase in the amount of wood biomass ash (WBA) produced [1]. European policies promote and stimulate green innovations in the reuse of waste as secondary raw materials to boost the market and new green business opportunities [14]. It is, necessary to find ways and methods for the application of WBA that are environmentally sound and economically justified. The objectives of this chapter are: (1) to determine what types of combustion technologies are currently in use and what types of WBA are produced by each combustion technology, the properties of these WBAs, and the factors that most influence WBA properties, as well as the physical and chemical properties that could influence the use of WBA in cement composites; (2) to assess the influence of WBA as a cement replacement on the properties of cement composites in the fresh and hardened states; (3) to provide a brief overview of the environmental impact of the use of WBA in the mortar and concrete mixes; and (4) to identify the market opportunities and readiness for reuse of a new potential supplementary cementitious material (SCM)
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
