Effect of sewage wastes on the physico-mechanical properties of cement and reinforced steel

El-Aziz, Magdy A. Abd; Sufe, Waleed H.

doi:10.1016/j.asej.2012.04.011

Cited by 12 publications

(3 citation statements)

References 13 publications

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“…The polarization resistance shows the opposite trend compared to the corrosion current. This behavior is mainly due to the distortion of the passive layer (caused by the green inhibitor) on the surface of reinforced steel in agreement with the observations of the researchers Abd El‐Aziz and Sufe …”

Section: Resultssupporting

confidence: 91%

Corrosion testing on steel reinforced XD3 concrete samples prepared with a green inhibitor and two different superplasticizers

Abdulsada

Fazakas

Törók

2019

Materials & Corrosion

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In recent years, the use of corrosion inhibitors in producing high-performance steel reinforced concrete structures has increased significantly to minimize the chloride and sulfate attacks. However, most inhibitors available in the market are toxic to the environment. Hence, one objective of the present investigation was to test a novel, eco-friendly, so-called green inhibitor extracted from a fruit waste (orange peel), and its effects were studied on the compression strength of the XD3 type concrete samples. The inhibitor was added to the concrete mix in concentrations of 1% and 3% by weight of cement in addition to two different superplasticizers (Mapei Dynamon SR 31, Budapest, Hungary and Oxydtron, Hungary). The test results on steel reinforced samples immersed in 3.5 wt% NaCl aqueous solutions at room temperature showed promising corrosion mitigating effects just after 6 months testing period. The lower corrosion currents (i.e., better corrosion resistance) after 6 months immersion were observed when the samples contained both green inhibitor and Oxydtron superplasticizer, especially with sample C2 (in this case 3% green inhibitor was added to the mixture of cement + Oxydtron superplasticizer). K E Y W O R D Scorrosion rate, electrochemical polarisation, green inhibitor, reinforced concrete, superplasticizers

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Section: Resultssupporting

confidence: 91%

Corrosion testing on steel reinforced XD3 concrete samples prepared with a green inhibitor and two different superplasticizers

Abdulsada

Fazakas

Törók

2019

Materials & Corrosion

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“…This statement is confirmed by the presented research results. The research deals, for example, with the monitoring of the effects of different concentrations of ammonia in mixing water on the physical, chemical, and mechanical properties of different types of cement-such as sulphate resisting cement, ordinary portland cement, and high slag cement-as a result of using sludge water [18,19], recycled water from agitation truck rinsing in concrete plants as a replacement for mixing water in concrete production [20]. The utilization of sludge water as the mixing water is a technically demanding solution if we want to maintain the optimal declared properties and to guarantee the standards for production of high strength concrete.…”

Section: Introductionmentioning

confidence: 99%

The Utilization of Waste Water from a Concrete Plant in the Production of Cement Composites

et al. 2017

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This article presents the results of a study dealing with the utilization of sludge water from a concrete plant as a partial replacement for mixing water in the production of cement composites. The replacement of mixing water with sludge water from a concrete plant was carried out in the amounts of 20% and 50%. The following tests were carried out in order to determine the effect of the replacement of mixing water with sludge water from a concrete plant on the physical and mechanical properties of the cement composites: cement mortar consistency, beginning and end of setting, strength characteristics (compressive strength and flexural strength), and thermal properties.The measured values of the strength characteristics of the test specimens after 28 days of age confirm the possibility of replacing mixing water with sludge water from a concrete plant without significantly reducing the compressive and flexural strength.

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“…The accumulation of ammonia particulate matter could have a deleterious impact on concrete sustainability because of the following reasons. The diffusion of ammonia gas across the concrete structure increases the porosity and permeability of the wall [ 19 ]. High levels of concrete permeability have been correlated with a pronounced risk of structural failure due to water seepage and chemical attack [ 20 ].…”

Section: Introductionmentioning

confidence: 99%

Sensors for Structural Health Monitoring of Agricultural Structures

Maraveas

Bartzanas

2021

Sensors

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The health diagnosis of agricultural structures is critical to detecting damages such as cracks in concrete, corrosion, spalling, and delamination. Agricultural structures are susceptible to environmental degradation due to frequent exposure to water, organic effluent, farm chemicals, structural loading, and unloading. Various sensors have been employed for accurate and real-time monitoring of agricultural building structures, including electrochemical, ultrasonic, fiber-optic, piezoelectric, wireless, fiber Bragg grating sensors, and self-sensing concrete. The cost–benefits of each type of sensor and utility in a farm environment are explored in the review. Current literature suggests that the functionality of sensors has improved with progress in technology. Notable improvements made with the progress in technology include better accuracy of the measurements, reduction of signal-to-noise ratio, and transmission speed, and the deployment of machine learning, deep learning, and artificial intelligence in smart IoT-based agriculture. Key challenges include inconsistent installation of sensors in farm structures, technical constraints, and lack of support infrastructure, awareness, and preference for traditional inspection methods.

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Effect of sewage wastes on the physico-mechanical properties of cement and reinforced steel

Cited by 12 publications

References 13 publications

Corrosion testing on steel reinforced XD3 concrete samples prepared with a green inhibitor and two different superplasticizers

Corrosion testing on steel reinforced XD3 concrete samples prepared with a green inhibitor and two different superplasticizers

The Utilization of Waste Water from a Concrete Plant in the Production of Cement Composites

Sensors for Structural Health Monitoring of Agricultural Structures

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