Mechanical and micro structural properties of concrete subjected to elevated temperature

Pallapu, Venkata Sairam; Satish, B.J.N.; Reddy, Komma Hemanth Kumar

doi:10.1016/j.matpr.2020.05.606

Cited by 2 publications

(8 citation statements)

References 11 publications

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“…Physical methods of treatment include structures designed to control the flow of wastewater to support the removal of contaminants. Zenien WWTP consists of 12 primary settling tanks, 36 aeration tanks and 12 secondary settling tanks and an odor control system as shown in figure (1). Three samples of treated wastewater were collected from Zenien WWTP in addition to a fourth sample of grey water from the pilot plant model.…”

Section: Samples From Zenien Wastewater Treatment Plant (Wwtp)mentioning

confidence: 99%

“…Finally, grey water from basin without toilets. Analyzing chemical and physical characteristics of wastewater is considered an important data in the wastewater treatment process, as shown in table (1).…”

Section: Mixing Watermentioning

confidence: 99%

“…Cement used in this study was ordinary Portland cement 53 grade cement (OPC) according to the new Egyptian specifications from Helwan Factory in Cairo, Egypt was used. Its physical properties and chemical analysis are shown in table (2).…”

Section: Ordinary Portland Cementmentioning

confidence: 99%

“…Concrete industry consumes huge amounts of fresh water for cement hydration and washing aggregate; so concrete industry has a serious effect on water shortage. For these reasons, reuse of treated wastewater is an important alternative to save the fresh water [1] . Many studies have experienced for different types of wastewater such as primary, biological, and tertiary TWW.…”

Section: Introductionmentioning

confidence: 99%

“…Many studies have experienced for different types of wastewater such as primary, biological, and tertiary TWW. However, using domestic wastewater in concrete industry has been rarely studied in the literature [2] . Using mixture of treated effluents and the fresh water in concrete industry with a percentage of 20% and 80%, respectively, provided that strength reduced compared with specified values in various codes [3] .…”

Section: Introductionmentioning

confidence: 99%

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Effect of treated wastewater on properties of high strength concrete mixture

Halawa

Al-Sheikh

2022

Engineering Research Journal

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Concrete industry in Egypt is consuming enormous amounts of fresh water (FW) for cement hydration and washing aggregate. Increasing of population led to increasing of water consumption, so providing the alternative is an important to save fresh water. In this research, four types of treated wastewater were used for concrete industry. The wastewater samples were collected from Zenien wastewater treatment plant in Giza, Egypt. Primary, biological, tertiary treated wastewater (TTWW) and treated grey water with sediment process only were used, and compare the results with those of concrete mixture using fresh water as a control sample. This paper shows the effect of using treated wastewater to mix the high strength concrete mixture on its properties and compare the results with concrete mixture using FW. In the experimental tests, primary, secondary, tertiary treated wastewater, treated grey water and FW were used as mixing water. The following properties of concrete were tested: compressive, tensile, flexure strength at ages of 3, 7, and 28 days, initial setting time, final setting time and pH value. The use of primary, secondary, TTWW and treated grey water as mixing water increases the final setting time of up to 14%, 6%, 3.5%, and 9.5% respectively compared with FW. The results confirm the possibility of using tertiary treated wastewater in high strength concrete mixture.

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Section: Samples From Zenien Wastewater Treatment Plant (Wwtp)mentioning

confidence: 99%

Section: Mixing Watermentioning

confidence: 99%

Section: Ordinary Portland Cementmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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