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(PDF) POSSIBILITY OF SEA WATER AS MIXING WATER IN

POSSIBILITY OF SEA WATER AS MIXING WATER IN CONCRETE POSSIBILITY OF SEA WATER AS MIXING WATER IN CONCRETE. Jack Jiang. Download PDF. Download Full PDF Package. This paper. A short summary of this paper. 31 Full PDFs related to this paper. READ PAPER.

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POSSIBILITY OF SEA WATER AS MIXING WATER IN CONCRETE

So, in tidal zone, there is a possibility use sea water as mixing water, considering the kind of cement. Table 1 Chemical compositions of sea water as mixing water Density (20 °C) pH (20 °C) Chemical compositions (mg/l) Na K Ca Mg Cl SO 4 CO 3 1.024 8.03 10125 387 376 1180 17136 2412 65 Table 2 Mix proportions of concrete Cement type ...

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Possibility of Sea Water as Mixing Water in Concrete ...

Request PDF On Dec 28, 2012, Nobuaki Otsuki and others published Possibility of Sea Water as Mixing Water in Concrete Find, read and cite all the research you need on ResearchGate

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Possibility of Sea Water as Mixing Water in Concrete ...

The authors believe that the possibilities of using sea water as mixing water in concrete should be investigated seriously. In this paper, the authors would like to show various possibilities of using sea water as mixing water in RC (reinforced concrete) members.

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(PDF) Possibility of Usage of Seawater for Mixing and ...

Dec 11, 2020  Cement concrete cubes of 150mm x 150mm x 150mm were cast using fresh water and sea water with mix ratio 1:2:4. All the mixes were prepared using constant water cement ratio (w/c) of

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Vol. 5, Issue 9, September 2016 Relevance of Sea Water as ...

possibility of sea water as mixing water in concrete will be an innovative one. If use of sea water as mixing water is permitted, it will be more convenient, economical in the construction field, especially in coastal region. One of the practical solution to economise the water usage, the replacement of cement with fresh water and sea water

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(PDF) Some Considerations for Applicability of Seawater as ...

As mixing water, fresh water and seawater were used. The size of. the specimen was 150 mm in diameter and 300 mm in height. Three. round steel bars of 9-mm diameter were used for reinforcement ...

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Some Considerations for Applicability of Seawater as ...

mixed with seawater is initially higher than that with fresh water. Then, the difference in strength after the long-term exposure from the type of mixing water becomes smaller.

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[PDF] Feasibility of Sea-Sand Sea-Water Concrete ...

This paper highlights the study of using sea-sand and sea-water in concrete construction in replacement of fresh water and river sand. Presence of chloride and sulphate in sea sand and sea water was compromised by using a combination of fly ash, blast furnace slag cement and chemical admixture, which in turn helps to increase the strength, workability and durability of concrete.

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Effects of seawater mixing on the mobility of trace ...

Feb 01, 2018  Stable isotope signatures of the mixing solutions, the wastewater end-members (illustrated with diamond, cross and star for the edge outflow of zone 3, zone 4 and process water, respectively) and the seawater end-member; a) δ 18 O vs. δ 2 H (δD) composition, and b) δ 18 O vs. δ 34 S composition. (For interpretation of the references to ...

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View of Possibility of Usage of Seawater for Mixing and ...

Possibility of Usage of Seawater for Mixing and Curing of Concrete in Salty Water Localities Download-PDF Download-PDF

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Some Considerations for Applicability of Seawater as ...

mixed with seawater is initially higher than that with fresh water. Then, the difference in strength after the long-term exposure from the type of mixing water becomes smaller.

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[PDF] Some Considerations for Applicability of Seawater as ...

AbstractAccording to the report of the World Meteorological Organization (WMO), more than half of the world’s population will not have enough drinking water by 2025. To save drinking water, use of seawater in the concrete industry seems imperative. In the present study, the possibilities of seawater as a material of concrete are discussed as a result of the literature-based and experimental ...

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Technical Committee on the use of sea water in concrete

Engineering, it is a principle not to use seawater for mixing reinforced concrete. However, the statements on winter concreting and their revisions suggested the possibility of mixing concrete with sea water for plain concrete of specific quality. In the architectural field (JASS5), the first regulation on salt appeared in 1933, which

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ON THE ENTHAL,PY OF SEAWATER1 Donald IV. Connors2

of water in seawater. The data used were the currently available heat capacity data for seawater. As a cheek, he did two mix- ing experiments, at 25 and 50C using dis- tilled water and seawater of salinity 33.5%0, with a resulting salinity of 2.02%0. Bromley (1968#b) also carried out a scrics of mixing experiments at 25C using seawater and ...

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[PDF] Investigation on the Use of Sea Water on Strength ...

Construction engineering in coastal areas are facing the challenge of shortage of fresh water for mixing and curing. The quality of water places an important role in the setting and strength development of concrete structures. The present investigation is carried to identify the effect of mixing and curing of concrete with artificial sea water on the compressive strength, split tensile ...

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(PDF) The Self Compacting Concrete (SCC) using seawater as ...

[Show full abstract] strength, absorption, and porosity of Self Compacting Concrete (SCC) using sea water as mixing water and with or without curing in sea water. The test specimens were made for ...

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Effects of seawater on mechanical properties, mineralogy ...

Jul 10, 2019  Artificial seawater (Sw) prepared according to ASTM D1141-98 (2013) was used as the mixing water of specimens, and tapwater (Tw) was used as the mixing water of the control. The alkaline solutions with a Na 2 O/H 2 O mass ratio of 0.1 were prepared by adding extra H 2 O into the stirring liquid sodium silicate 24 h before using.

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Ocean mixing and ice-sheet control of seawater 234U/238U ...

Nov 04, 2016  The ratio of 234U to 238U in seawater underlies modern marine uranium-thorium geochronology, but it is difficult to establish the ratio precisely. Chen et al. report two 234U/238U records derived from deep-sea corals (see the Perspective by Yokoyama and Esat). The records reveal a number of important similarities to and differences from existing records of the past 30,000 years.

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(PDF) Saturation states of carbonate minerals in a ...

The over abstraction causes the water has been interpreted as being responsible for movement of seawater into the aquifer and mixing carbonate dissolution at the time of seawater intrusion with freshwater. in coastal aquifers where the potential for dissolu- Since the mixing between freshwater and sea- tion/precipitation of calcite, aragonite ...

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Concrete Exposed to Seawater – Effects and Preventions ...

Generally seawater contains 3.5 per cent of soluble slats by weight. The ionic concentration of Na+ and Cl- are maximum in seawater, normally 11,000 and 20,000 mg/lit respectively. Seawater also contains Mg 2+ and SO 4 2-about 1400 and 2700 mg/li respectively. The pH of seawater fluctuates between 7.5 and 8.4. The average pH is taken about 8.2.

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Influence of seawater on alkali-activated slag concrete ...

May 12, 2021  This study examines the use of natural seawater as mixing water for alkali-activated slag concrete and reports the characteristics of alkali-activated slag concrete with exposure to seawater. Preliminary experiments were conducted on pastes in order to measure pH and select optimum activator content under the experimental conditions. Wet-sieved pastes from fresh concrete

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Chemistry of Sea water - California Digital Library

Only two units are to be used for expressing the quantity of sea water: either (1) the kilogramor (2) the amount of water which at 20° C. and pressure one atmosphere occupies the volume of one liter. The latter unit is designated as LZO,but in this discussionit will be indicated asL. The system in which the constituents are reported asthe amounts

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Porosity, Pore Size and Compressive Strength of Self ...

Jan 01, 2015  Download full text in PDF Download. Procedia Engineering. Volume 125, 2015, Pages 832-837. Porosity, Pore Size and Compressive Strength of Self Compacting Concrete Using Sea Water ... Possibility of Sea Water as Mixing Water in Concrete, 36th Conference on Our world in Concrete Structures, Singapore.

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Natural Farming: Diluted Seawater

Brackish water may also be col-lected where fresh water mixes with seawater. Pour the collected water into a large bowl and allow it to sit, uncovered, for 24 hours. This allows evaporation, aeration, concentration of solids, and the inoculation of airborne microor-ganisms to occur. DSW is prepared by mixing the seawater with fresh water at

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Density: Sea Water Mixing and Sinking

Activity 2. Sea Water Mixing and Sinking Background In the oceans, the salinity varies over time and from place to place. Typical open ocean salinities vary between 33 and 36 PSU (Practical Salinity Units), equivalent to 33-36 parts per thousand. Two of the most important characteristics of ocean water are its temperature and salinity.

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EFFECT OF SEA WATER AND STRENGTH OF CONCRETE

Test specimens were cured under sea water of varying normality i.e.1N, 3N, and 5N, as well as plain water up to 180 days. (1N sea water means normal sea water made by mixing tap water with exact amount and proportion of principal salts found in natural sea water.) . They concluded that concrete specimen made cured with sea water exhibits ...

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Effects of natural seawater mixing on the properties of ...

Aug 02, 2021  The alkaline activator was prepared by mixing the sodium metasilicate fine particles (accounting for 7% of the GGBFS by mass) with seawater or distilled water (water-to-binder ratio was 0.40) in a beaker and cooling down naturally with a watch glass covered on the beaker until room temperature (23 ± 2°C).

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Chemistry of Sea water - California Digital Library

Only two units are to be used for expressing the quantity of sea water: either (1) the kilogramor (2) the amount of water which at 20° C. and pressure one atmosphere occupies the volume of one liter. The latter unit is designated as LZO,but in this discussionit will be indicated asL. The system in which the constituents are reported asthe amounts

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Evaluation of sustainable concrete produced with ...

Jun 01, 2017  Possibility of sea water as mixing water in concrete 36th Conf. on Our World in Concrete and Structures, August 14–16 , vol. 36 , CI-Premier Pte , Singapore ( 2011 ) , pp. 131 - 138 View Record in Scopus Google Scholar

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(PDF) Developing Conceptual Aquifer Geometry, Structural ...

The water tables in the confined aquifers are lies in high depth but in case of unconfined aquifer the water table lies near to the surface. From the structural geological condition and position of the aquifers, it is not possible to mixing sea water with groundwater from the western side of the study area where the Bay of Bengal is situated.

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Assessment of Water Sources and Mixing of Groundwater in a ...

May 15, 2017  Water inrush is a potential disaster in the Sanshandao Gold Mine, which is located on the coast of the BoHai Sea. A conceptual model based on the water chemistry and hydrogeological setting was established to identify potential water sources. Then, a mixing pattern was developed based on the δ18O and Cl− values. Finally, a linear mixing model was used to estimate the mixing ratios of water ...

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(PDF) Pore water geochemistry and mixing processes within ...

Tri- angles identify tracer concentrations of surface sea water and of sub- waters (below 350 m) suggests that the water-rock ratio is high surface water at 350 m. Deep interstitial waters are located along the and hence, that water circulates rapidly enough through the mixing

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(PDF) Environmental isotope study of seawater intrusion in ...

All data points are distributed around the mixing line characterized by a slope of 5.55 (Fig. 7) and given by The relationship between d18O and chloride the equation: As shown in Fig. 8a the points are distributed around d2 H ¼ 5:55d18 O þ 3:35: the mixing line linking fresh water with seawater are expressed by the formula: d18 O ¼ 2:33 10 4 ...

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Availability and Feasibility of Water Desalination as a ...

Sep 15, 2020  Sustainability 2020, 12, 7592 2 of 14 Egypt. The water supply in Egypt comes mainly from three sources: the Nile (95%), rainfall (3.5%), and groundwater (1.5%). The Nile gives 55.5 billion m3 per year, while the other two sources combined provide around 2.2 billion m3 of fresh water. Egypt’s freshwater reserves are around 58 billion m3 per year, however, the country’s annual water ...

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Investigating the effect of mixing water dispersion on ...

Aug 13, 2019  Worldwide, the concrete industry is consuming about one billion cubic meters of mixing and curing fresh water per year. A settled fact in the cement industry tells that excessive water content leads to a reduction in strength of cement mortar, however inadequate water content incurs poor workability. The need for research to study enhancing the utilization of the same amount of potable water ...

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The Future of Seawater Desalination: Energy, Technology ...

Aug 05, 2011  In recent years, numerous large-scale seawater desalination plants have been built in water-stressed countries to augment available water resources, and construction of new desalination plants is expected to increase in the near future. Despite major advancements in desalination technologies, seawater desalination is still more energy intensive compared to conventional

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6. Water treatment - WHO

6. Water treatment 6. WATER TREATMENT 6.1 Introduction Water can be contaminated by the following agents: Pathogens – disease-causing organisms that include bacteria, amoebas and viruses, as well as the eggs and larvae of parasitic worms. Harmful chemicals from human activities (industrial wastes, pesticides, fertilizers).

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