Effect of pond ash and steel fibre on engineering properties of concrete

Abstract

This paper presents an experimental study on engineering properties of pond ash-modified concrete reinforced by discrete steel fibres. Pond ash content was varied as 0%, 10%, 20% and 30% by weight of cement. Grooved steel fibres were varied as 0%, 0.5%, 1% and 2% by volume of concrete. Compressive strength, split tensile strength and flexural strength increased with increasing curing period for all fibre contents and pond ash contents. For a given fibre content, compressive strength decreased with increasing pond ash content. Split tensile strength did not show any marked change with increasing pond ash content for any fibre content. Flexural strength also increased with increasing fibre content for all pond ash contents. In general, the addition of steel fibres did not improve the values of modulus of elasticity. The effects of pond ash on modulus of elasticity were not as significant as those of pond ash on strength.Ó 2015 Faculty of Engineering, Ain Shams University. Production and hosting by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

Development of banana fibers and wood bottom ash modified cement mortars

“…Therefore, the BF was able to resist fiber pull out by arresting the micro-cracks induced by the applied load. Previous study [36] also highlighted the same situation that at constant pond ash content and increasing fiber content, the flexural strength of a fiber reinforced concrete was improved. It was also stated that for every increase in the dosage of the pond ash at a given value of fiber, the flexural strength reduced significantly.…”

“…This is because for any given proportion of WBA, the ash being a pozzolanic substance could not improve the tensile strength. Rather, it contributes to the formation of flocs which are more capable of resisting compressive strength than split tensile strength [36]. Hence, for every increase in the ash content, flocculation within the composite increases, therefore the capability of the system to oppose tensile forces diminishes.…”

A comprehensive study on engineering and sustainability characteristics with emphasizing on 3R's approach in building construction

“…It is an aqueous alkali silicate liquid that has activated the minerals. GPs can be made using a variety of mineral and industrial by-products, including metakaolin, FA, and GGBFS, bagasse ash, bottom ash, rice husk ash, and pond ash [ [21] , [22] , [23] , [24] , [25] , [26] , [27] , [28] , [29] ]. GPs have a low-carbon footprint and hence serve as a sustainable alternative to traditional concrete [ [30] , [31] , [32] , [33] ].…”

Effect of water to cement (W/C) ratio and age on mechanical behavior of tire‐recycled steel fiber reinforced concrete

“…Table 1 summarizes previous research conducted on steel fiber reinforced concretes, including the percentage of fiber and resulting optimum fiber value (per unit weight), used steel fiber type, and type of performed mechanical tests. As seen in most of these studies, the used steel fiber is the industrial type, [28][29][30][31][32][33][34][35] and few studies used recycled steel fibers. 36,37 Also, in all of these investigations, the effect of mix-design and, in particular, the influence of water to cement ratio on optimum percentage fiber content has not been considered.…”