Title: Fly Ash , Slag, Silica Fume, and Rice Husk Ash in Concrete: A Review Author (s): V. M. Malhotra Publication: Concrete International Volume: 15 Issue: 4 Appears on pages (s): 23-28 Keywords: admixtures; blast furnace slag; fly ash ; hydraulic cements; pozzolans; rice husk ash ; silica fume; Materials Research DOI: Date: 4/1/1993 Abstract: Portland cement is a highly energy-intensive product, and therefore, to save energy and conserve resources, considerable efforts are being made to find ... Objective To investigate the impact of different percentages of slag and fly ash on the compressive strength and carbon footprint of lightweight concrete. • Highlighting the aim to minimize carbon emissions associated with concrete production while optimizing concrete strength In this article named “ Production of Fly Ash “, the process of fly ash production will be discussed briefly. Fly ash is a by-product of burning coal in an electrical generating station. The following figure shows a typical layout of a coal-burning generating station. Introduction This TechNote discusses the implications of limits on the proportions of fly ash in project specifications. This TechNote addresses only fly ash that meets current, applicable specifications such as ASTM C618. Prescriptive specifications for concrete construction projects often include a clause that limits the proportion of supple-mentary cementitious materials (SCMs) (Obla and Lobo 2015). For example, the clause incorporated in Section 033000 pertaining to cast-in-place ...
