Reinforced-concrete Bond with Brine and Olive Oil Mill Wastewater

Abstract

Since the interaction between the steel reinforcement and concrete directly controls the bond strength between them, poor bond performance results in a direct negative effect on the existing state of reinforced concrete structures. This bond is one of the most important factors affecting the strength of reinforced concrete. The bond strength is measured using the pull-out test. The present paper discusses the effect of the addition of brine and olive oil mill wastewaters to the reinforced concrete mixes. The main objective of this study is to determine the effect of brine wastewaters and olive oil mill wastewaters on the bond strength between steel and concrete when adding each of the admixtures to the concrete components. Pull-out tests were conducted on concrete mixes with additive contents of 2.5, 5, 7.5, 10, and 15 % by weight of water for each. It was found that the bonding strength of reinforced concrete specimens with an olive oil mill and brine wastewater improved and decreased by approximately 6–10% and 2–5%, respectively, if compared to the reference samples. These values were observed for mixes with additive contents of 7.5% for olive oil mill wastewaters and 10% for brine wastewaters. Doi: 10.28991/CEJ-2022-08-02-010 Full Text: PDF

Torsional Strength of Reinforced Concrete Beams with Brine and Olive Oil Mill Wastewater

“…Previous research showed that the addition of olive oil mill and brine wastewaters significantly increased the compressive strength when compared to the reference mixtures and also showed that the best percentages that could be added were 7.5% and 10% of the olive oil mill and brine wastewater, respectively, which have been proven in this research [1][2][3][4].…”

“…Specifications, Chemical, and physical properties can be referred to in Alzgool et al [1], Alshboul et al [2], and Alzgool [3].…”

“…We did not increase the percentages by more than 15% because, in previous research, the best ratios of concrete with olive oil mill wastewater were 7.5% and brine wastewater at 10%. These ratios were tested and determined for compressive and torsional strength, and it was found that an increase in these percentages leads to reduced compressive and bending strength [1][2][3].…”

Experimental investigations: Reinforced Concrete Beams Bending Strength with Brine Wastewater in Short Age

“…From an economic and environmental standpoint, waste creation and disposal is an issue of fundamental relevance for growth at the present moment, with direct consequences for sustainability [4][5][6]. To ensure that the concrete's resistance strength is not compromised, it is important to pay close attention to the ratios of its components while recycling materials into the material [7][8][9]. Previous research has shown this [10][11][12].…”

The potential of biomass-derived bio-liquid to prevent the spread of SARS-CoV-2 from waste and its production-based life cycle assessment

“…If wet thermochemical extraction (WTE) and dry thermochemical extraction (DTE) are applied to treat biomass ( Bilen and Turan, 2022 ; Yang et al, 2018 ; Zhang et al, 2020 ), its lignin components can effectively be destroyed and generate a large amount of phenolic components, which are similar to phenolic disinfectants ( Déniel et al, 2017 ; Torri et al, 2012 ; Turan et al, 2019 ). Moreover, the liquid products from DTE process, usually called wood vinegar, has been used as disinfectant in the agriculture ( Alzgool et al, 2022 ; Gao et al, 2020 ; Ismail et al, 2022 ; Turan et al, 2022 ). Further, it was found that a high inactivation rate of pathogenic virus and bacteria by the bio-liquid from wet thermochemical extraction (WTE) ( Yu et al, 2022 ).…”