Corrosion prediction using the weight loss model in the sewer pipes made from sulfur and cement concretes and Response Surface Methodology (RSM)

Sabour, Mohammad Reza; Dezvareh, Ghorbanali; Bazzazzadeh, Roya

doi:10.1016/j.conbuildmat.2018.11.283

Cited by 32 publications

(10 citation statements)

References 13 publications

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“…This was a continuous change with an almost constant gradient that continued to the 45 th day. Since the evolution of pH is an indicator of bacterial growth and biofilm layer formation, pH reduction improves bacteria growth [34,35]. The pH changes trend in this figure indicates that the samples with electrodeposited Cu 2 O show antibacterial performance.…”

Section: Ph Monitoring Turbidimetry and Cell Count Results In The Biofilm Test Stagementioning

confidence: 89%

The effect of synthesized Cu2O on the microbial corrosion inhibition of urban sewer systems

2021

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The microbial corrosion of reinforced concrete sewers was inhibited by synthesized cuprous oxide (Cu2O) nanoparticles. The antibacterial characteristics of Cu2O on Acidithiobacillus thiooxidans were investigated by temporal variation of pH, turbidity, and bacterial counting. Three reinforced concrete samples with different weight percentages of electrodeposited Cu2O (0.06 wt%, 0.055 wt %, 0.05 wt %) were used. The bacterial counting showed that the number of bacteria in samples with 0.06, 0.055, and 0.05 wt% of Cu2O was 4.82, 4.42, and 2.94 times lower than the blank sample (BS), respectively. After bacterial growth, the optical density measurement showed that the percentage of turbidity enhancement for samples with 0.06, 0.055, and 0.05 wt% of Cu2O were 108%, 118%, 165%, respectively, while it was 412% for the BS. Moreover, the pilot stage's pH monitoring revealed that the electrodeposited Cu2O lowered the concentration of hydronium between 7 to 81 times compared to the BS. Experiments indicated that slight changes in the amount of electrodeposited Cu2O lead to significant changes in samples' ability to hinder bacterial growth and microbial-induced corrosion.

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Section: Ph Monitoring Turbidimetry and Cell Count Results In The Biofilm Test Stagementioning

confidence: 89%

The effect of synthesized Cu2O on the microbial corrosion inhibition of urban sewer systems

2021

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“…The continuous mass-loss rate (R m ) was determined as follows [ 43 ]:

where W 0 was the initial weight of the specimens before the cycles, while W i was the weight of the specimens after being exposed to i corrosion cycles. The measurement was carried out by scales with an accuracy of 0.1 mg [ 44 ].…”

Section: Methodsmentioning

confidence: 99%

Durability Study on High-Performance Fiber-Reinforced Mortar under Simulated Wastewater Pipeline Environment

Wang

Zhao

et al. 2021

Materials

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The acid–alkaline-inducd corrosive environments inside wastewater concrete pipelines cause concrete structural deterioration and substantial economic losses all over the world. High-performance concrete/mortar (HPC) was designed to have better resistance to corrosive environments, with enhanced service life. However, the durability of HPC in wastewater pipeline environments has rarely been studied. A high-performance mortar mixture (M) reinforced by supplemental materials (including fly ash and silica fume) and polyvinyl alcohol (PVA) fibers, together with a mortar mixture (P) consisting of cement, sand and water with similar mechanical performance, were both designed and exposed to simulated wastewater pipeline environments. The visual appearance, dimensional variation, mass loss, mechanical properties, permeable pore volume, and microstructure of the specimens were measured during the corrosion cycles. More severe deterioration was observed when the alkaline environment was introduced into the corrosion cycles. Test results showed that the M specimens had less permeable pore volume, better dimensional stability, and denser microstructure than the P specimens under acid–alkaline-induced corrosive environments. The mass-loss rates of the M specimens were 66.1–77.2% of the P specimens after 12 corrosion cycles. The compressive strength of the M specimens was 25.5–37.3% higher than the P specimens after 12 cycles under corrosive environments. Hence, the high-performance mortar examined in this study was considered superior to traditional cementitious materials for wastewater pipeline construction and rehabilitation.

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“…The deformative properties of sulfur-based concrete are taken into account when determining crack resistance and structural rigidity. Deformative characteristics of sulfur-based concrete are given in Table 8 [ 3 , 8 , 11 , 125 ]. Some problems arise due to low-temperature creep, which, depending on the formulations and conditions of use of products, may be lower or higher than the creep of ordinary concrete [ 5 ].…”

Section: Sulfur In the Concrete Industrymentioning

confidence: 99%

“…Computer simulations of the behavior of plasticized sulfur-based concrete showed that a reduction in creep, along with the greatest possible reduction in the amount of sulfur binder used, can be achieved by compacting the material in a direction towards the progressive hardening front of sulfur, which compensates for shrinkage by the binder movement [ 10 , 58 ]. In other words, the binder must “fill” the contraction of the volume in the transitional state of the system from liquid to solid [ 11 , 125 ]. Sulfur-based concretes have a decaying creep at a level of loading up to 0.5 R lim .…”

Section: Sulfur In the Concrete Industrymentioning

confidence: 99%

“…Hardened sulfur-based concrete is practically not subject to shrinkage. After 120 days, the signs of the indicators were insignificant and comparable in magnitude to the deformations from temperature fluctuations, that is, proportional to the coefficient of linear thermal expansion [ 48 , 125 ]. The frost resistance of sulfur-based concrete shows a sharp decrease in strength during the first 50 cycles; however, in the future up to 500 cycles, the decrease in strength is quite insignificant.…”

Section: Sulfur In the Concrete Industrymentioning

confidence: 99%

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A Critical Review on the Properties and Applications of Sulfur-Based Concrete

et al. 2020

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The incessant demand for concrete is predicted to increase due to the fast construction developments worldwide. This demand requires a huge volume of cement production that could cause an ecological issue such as increasing the rates of CO2 emissions in the atmosphere. This motivated several scholars to search for various alternatives for cement and one of such alternatives is called sulfur-based concrete. This concrete composite contributes to reduce the amount of cement required to make conventional concrete. Sulfur can be used as a partial-alternate binder to Ordinary Portland Cement (OPC) to produce sulfur-based concrete, which is a composite matrix of construction materials collected mostly from aggregates and sulfur. Sulfur modified concrete outperforms conventional concrete in terms of rapid gain of early strength, low shrinkage, low thermal conductivity, high durability resistance and excellent adhesion. On the basis of mentioned superior characteristics of sulfur-based concrete, it can be applied as a leading construction material for underground utility systems, dams and offshore structures. Therefore, this study reviews the sources, emissions from construction enterprises and compositions of sulfur; describes the production techniques and properties of sulfur; and highlights related literature to generate comprehensive insights into the potential applications of sulfur-based concrete in the construction industry today.

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Corrosion prediction using the weight loss model in the sewer pipes made from sulfur and cement concretes and Response Surface Methodology (RSM)

Cited by 32 publications

References 13 publications

The effect of synthesized Cu2O on the microbial corrosion inhibition of urban sewer systems

The effect of synthesized Cu2O on the microbial corrosion inhibition of urban sewer systems

Durability Study on High-Performance Fiber-Reinforced Mortar under Simulated Wastewater Pipeline Environment

A Critical Review on the Properties and Applications of Sulfur-Based Concrete

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