Effect of wastewater on properties of concrete

Meena, Khushboo; Luhar, Salmabanu

doi:10.1016/j.jobe.2018.10.003

Cited by 96 publications

(60 citation statements)

References 7 publications

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“…Even at the nal stage, the reduction of strength was still near to the upper limit and it can go higher with any intentional fault in concrete-making procedures. 14 Advances in Civil Engineering e comparative charts of the compressive strengths of samples are shown in Figures 11 and 12 for normal concrete and granite concrete, respectively. e dashed line shows the maximum limit for each concrete mixture design.…”

Section: Resultsmentioning

confidence: 99%

“…But it can be seen that in this city the concretes will load just after 7 days. 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 Compressive strength (MPa) 14 28 56 90 7…”

Section: Resultsmentioning

confidence: 99%

“…e two types of samples had the same curing process. e result showed that the compressive strength of samples with treated-water replacement is about 85-94% of normal concrete [14]. An investigation on the use of treated grey water (TGW) and raw grey water (RGW) showed an increased rate in the initial setting time and a decrease in the slump.…”

Section: Introductionmentioning

confidence: 99%

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Investigation of the Effect of Larestan’s Pipeline Water on the Mechanical Properties of Concretes Containing Granite Aggregates

Forsat

Mirjavadi

2019

Advances in Civil Engineering

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In this study, the compressive strength of the concretes made by the pipeline water of Larestan has been investigated. Although the used water for the concretes must be clean, standard, and generally drinkable water, in Larestan city, the pipeline water is nonpotable water; meanwhile, this type of water is still being used in the mixture of the concretes by companies and contractors. Since in the initial tests the compressive strength of the normal samples did not satisfy the standards, 50% of granite aggregate was replaced with the purpose of increasing strength of the samples. en four types of samples were made, which are (1) normal concrete with pipeline water, (2) normal concrete with potable water, (3) granite concrete with pipeline water, and (4) granite concrete with potable water. e results showed that the compressive strength of normal samples is not standard in the case of using the pipeline water. is issue can be seen during the first four weeks of the samples, whereas these samples are placed in the standard zone by replacing 50% of granite aggregate instead of normal aggregates. is may be attributed to the compensating effect of granite aggregates in opposition to damaging effect of water. Also, by using the granite aggregates in the mixture, the compressive strengths of the samples were standard and almost identical in both cases of pipeline water and tap water. As a result, the concretes made in this city must include additives for increasing the strength, or the tap water should be used as a replacement for pipeline water.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Investigation of the Effect of Larestan’s Pipeline Water on the Mechanical Properties of Concretes Containing Granite Aggregates

Forsat

Mirjavadi

2019

Advances in Civil Engineering

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“…The detailed methodological framework for the development and strength analysis of developed concrete [4,5,7,10] using different water resources is given in Figure 1. to make a sound determination concerning the utilization of non-fresh water in concrete.…”

Section: Methodsmentioning

confidence: 99%

“…Textile effluent was also tested in comparison to ordinary water for the strength of concrete [3]. Primary treated wastewater, secondary treated wastewater, car wash wastewater, sugar wastewater, seawater, and treated sewage water were compared with potable water and domestic water for concrete development [4][5][6][7][8][9][10]. The effect of quality of water on the compressive strength of concrete was investigated [11,12].…”

Section: Introductionmentioning

confidence: 99%

Impact Analysis of Water Quality on the Development of Construction Materials

et al. 2019

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This research dealt with the impact of the quality of the water source on the mechanical properties of construction materials. The mechanical properties of construction materials include compressive, tensile, and flexural strength. Water samples were collected from different resources, these samples were then synthetically investigated to identify and compare their quality parameters. After a detailed chemical analysis of water samples from three sources-wastewater, surface or canal water, and ground water-construction concrete material samples were prepared. The construction materials were developed with the same water-cement ratio, i.e., 0.60 for each concrete mix sample at two mix ratios-M1 (1:2:4) and M2 (1:1.5:3). Slump cone and compacting factor tests were conducted on the fresh concrete to determine its workability prior to its hardening. Then, at 7, 14, 21, and 28 days for each mix, tests for mechanical properties were carried out to determine the compressive, tensile, and flexure strengths. Results showed that the mechanical properties of the concrete made by utilizing wastewater and surface water were more noteworthy as compared to the concrete made by groundwater. This study will help in the production of concrete which depends on waste and surface canal water, even for large projects like rigid pavement construction and water-related structures.

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Making concrete blocks by raw leachate and construction and demolition waste

Esmaeili

Heidarzadeh

2021

Remediation Journal

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Research was performed to determine if a viable concrete product can be produced using waste streams accumulating in landfills. The lack of recycling and reuse of construction and demolition (C&D), despite technical, economic, and environmental justifications, has led to the accumulation of C&D waste in landfills throughout Iran.Another issue with landfills in Iran is the existence of pools of municipal solid waste leachate, which has caused problems due to lack of treatment. In this study, by simultaneously utilizing raw municipal leachate and C&D waste in the concrete production process, an attempt was made to produce concrete that is environmentally sustainable and can be used in civil works. After crushing, the C&D waste was granulated into different sizes, its coarse aggregate was completely replaced, and 70% of its fine aggregate was replaced with natural aggregate to form concrete samples that were then made using different percentages of leachate. The utilization of the leachate and C&D waste for concrete production doubled the concrete slump and reduced the unconfined compressive strength of 7-and 28-day curing time by 9 and 15.7 MPa, respectively, when compared to concrete produced with natural aggregates. A leaching procedure test showed that samples made using leachate and recycled C&D waste did not result in high concentrations of leachable heavy metals. Therefore, the study showed that low leachate percentages and recycled C&D wastes can be used in projects where high-strength concrete is not necessary.

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Effect of wastewater on properties of concrete

Cited by 96 publications

References 7 publications

Investigation of the Effect of Larestan’s Pipeline Water on the Mechanical Properties of Concretes Containing Granite Aggregates

Investigation of the Effect of Larestan’s Pipeline Water on the Mechanical Properties of Concretes Containing Granite Aggregates

Impact Analysis of Water Quality on the Development of Construction Materials

Making concrete blocks by raw leachate and construction and demolition waste

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