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mixing concrete with sea water

mixing concrete with sea water

Sea Water for Mixing Concrete The Construction Civil

Sea Water for Mixing Concrete. It is advisable, as stated above, to use clean water fit for drinking purposes for making cement concrete.However, at places where sea water is available in abundance and potable water is costly, the sea water can be used for making cement concrete. The problem of using sea water for mixing concrete has to be studied from the following two aspects:

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Sea Water in Concrete Mix Concrete Construction Magazine

Apr 01, 1976  There appears to be no danger of corrosion of steel, however, if the concrete mixed with sea water is continuously immersed in sea water. There is also the possibility of sulfate attack and consequent deterioration by the use of sea water if the cement used has

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Designing concrete for exposure to seawater

d e t e ri o r ates concrete and care f u l l y selecting a mix design can help en-s u r e the maximum service life of the concrete structure. Marine environment Most seawaters are similar in composition, containing about 3.5% soluble salts (chlorides and sulfates) by weight. The pH of sea-water va r ies from 7.5 to 8.4, ave ra g-

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CAN SEA WATER BE USED FOR MAKING CONCRETE? - CivilBlog.Org

Jun 28, 2014  If the collapsed condo contractor used either sea water and or beach sand to build the units, the corrosive aspect will be the end effect we witnessed on June 24, 2021 @ The Surfside condo. The corrosive effect of salts in sea water are very damaging to the steel reinforcing rods in the concrete mix

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Why is sea water not used in mixing concrete? - Quora

Whether mixing and curing of concrete is to be done using sea water or not has been an interesting topic of research and discussion over the years following the boom in marine construction. Generally, concrete of higher grades is used for massive ...

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Sea Water for Mixing Concrete The Construction Civil

Sea Water for Mixing Concrete. It is advisable, as stated above, to use clean water fit for drinking purposes for making cement concrete.However, at places where sea water is available in abundance and potable water is costly, the sea water can be used for making cement concrete. The problem of using sea water for mixing concrete has to be studied from the following two aspects:

get price

CAN SEA WATER BE USED FOR MAKING CONCRETE? -

Jun 28, 2014  If the collapsed condo contractor used either sea water and or beach sand to build the units, the corrosive aspect will be the end effect we witnessed on June 24, 2021 @ The Surfside condo. The corrosive effect of salts in sea water are very damaging to the steel reinforcing rods in the concrete mix

get price

Designing concrete for exposure to seawater

d e t e ri o r ates concrete and care f u l l y selecting a mix design can help en-s u r e the maximum service life of the concrete structure. Marine environment Most seawaters are similar in composition, containing about 3.5% soluble salts (chlorides and sulfates) by weight. The pH of sea-water va r ies from 7.5 to 8.4, ave ra g-

get price

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

In this paper, sea water, instead of tap water, was used in mixing and curing the concrete. The experimental work consisted of 48 cubic, with 100 mm side length, plus 48 cylinder, with diameter of ...

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What are the dangers of using sea water as mixing water in ...

Jun 15, 2019  The study shows that sea water affects the rate of gain in strength of concrete when used for mixing or curing. The strength of concrete made by using sea water was observed to be decreased by about 15% as compared to the similar concrete specimens made and cured with fresh water

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On-Demand Course: Seawater-Mixed Concrete – A New Class of ...

Fresh water is a finite resource and it can be scarce in islands, deserts, and in many locations around the world after natural disasters. Considering increasing construction and reconstruction needs, replacing freshwater with seawater for concrete mixing has the potential to lead to a new class of sustainable concrete materials.

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Why is sea water not used in mixing concrete? - Quora

Whether mixing and curing of concrete is to be done using sea water or not has been an interesting topic of research and discussion over the years following the boom in marine construction. Generally, concrete of higher grades is used for massive ...

get price

Salt Water Concrete—A Reality Monolithic Dome Institute

Feb 24, 2014  It is just a matter of gathering up the beach sand, using the salt water to mix the Portland Cement and constructing the Ecoshell I. One consideration during the construction process is the fact that salt water tends to speed up the setting of the concrete. However, adding 20 percent fly ash will slow the setting and help make the concrete even ...

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How to pour concrete in water - YouTube

Jun 30, 2016  This video shows you how to pour concrete in water. You may like my other videos. Just type Lsailor1 in the YouTube search bar. Like them? Subscribe for the ...

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Mixing Water for Concrete - Portland Cement Association

When considering water quality in concrete production, it is important to account for all sources of water in the mixture. By far, the greatest volume of mixing water in concrete is from batch water which may be from either a municipal water supply, a municipal reclaimed water. supply, site-sourced water, or water from concrete production ...

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ONLINE CIVIL ENGINEERING: USE OF SEA WATER FOR

Jun 03, 2013  The IS 456 of 2000 prohibits the use of Sea Water for mixing and curing of reinforced concrete and prestressed concrete work. However, this specification permits the use of Sea Water for mixing and curing of plain cement concrete (PCC) under unavoidable situation.. It is pertinent at this point to consider the suitability of water for curing.

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Fresh and hardened properties of seawater-mixed concrete ...

Using seawater for mixing concrete is potentially advantageous from a sustainability perspective. However, the presence of high concentrations of chloride in the seawater can lead to corrosion of steel reinforcement. This issue can be addressed by using non-corrosive reinforcement; e.g., fiber reinforced polymer (FRP) bars.

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EFFECTS OF SALT WATER ON CONCRETE - Project Topics

The aim of the experiment is to prove whether or not, if the sea water can reduce the strength of concrete. 1.4 SCOPE AND LIMITATION OF STUDY . A popular yard-stick to the suitability of water for mixing concrete is that, if water is fit for drinking, it is fit for making concrete. This does not appear to be a true statement for all conditions.

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Quality of Water used for Concrete Mixes-Concrete Technology

Aug 28, 2017  Use of Sea Water for Mixing Concrete Mixes. Seawater contains a small quantity of sodium and potassium salt.The salinity of seawater is 3.5 percent.These salt can be reacted with reactive aggregate and alkali cement. Therefore sea water should not be used for the mixing of concrete if the aggregate is potentially reactive.

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Suitability of sea water for mixing structural concrete ...

Jan 01, 1995  As part of a durability study, this paper describes the mixing and curing effect of sea water on setting time, compressive strength of cement-sand mortar and corresponding concrete, rebar corrosion, chloride content and variation of alkalinity over a period of 18 months in a laboratory simulated splash/tidal zone of marine environment.

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CAN SEA WATER BE USED FOR MAKING CONCRETE? -

Jun 28, 2014  If the collapsed condo contractor used either sea water and or beach sand to build the units, the corrosive aspect will be the end effect we witnessed on June 24, 2021 @ The Surfside condo. The corrosive effect of salts in sea water are very damaging to the steel reinforcing rods in the concrete mix

get price

Fresh and hardened properties of seawater-mixed concrete ...

Nov 30, 2018  Ready-mix concrete with a 28-day 60-MPa design compressive strength was used to cast the specimens. In accordance with BS EN 206 , the mixture proportions for concrete per cubic meter were 756 kg of sand, 1144 kg of gravel, 158 kg of ordinary Portland cement, 292 kg of blast furnace slag, and 164 kg of water; with a water-to-cementitious material (w/cm) ratio of 0.34.

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What are the dangers of using sea water as mixing water in ...

Jun 15, 2019  The study shows that sea water affects the rate of gain in strength of concrete when used for mixing or curing. The strength of concrete made by using sea water was observed to be decreased by about 15% as compared to the similar concrete specimens made and cured with fresh water

get price

Some Considerations for Applicability of Seawater as ...

Jul 07, 2015  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 investigations.

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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 were used to

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Salt Water Concrete—A Reality Monolithic Dome Institute

Feb 24, 2014  It is just a matter of gathering up the beach sand, using the salt water to mix the Portland Cement and constructing the Ecoshell I. One consideration during the construction process is the fact that salt water tends to speed up the setting of the concrete. However, adding 20 percent fly ash will slow the setting and help make the concrete even ...

get price

Effects of mixing water salinity on the properties of concrete

Oct 20, 2020  Existing studies on SSC or seawater concrete have been largely limited to the use of mixing water with a salinity level close to the world-average ocean salinity. Against this background, the present paper reports the first ever systematic study on the effect of salinity of mixing water on the properties of concrete.

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Mixing Water for Concrete - Portland Cement Association

When considering water quality in concrete production, it is important to account for all sources of water in the mixture. By far, the greatest volume of mixing water in concrete is from batch water which may be from either a municipal water supply, a municipal reclaimed water. supply, site-sourced water, or water from concrete production ...

get price

Roman Seawater Concrete Holds the Secret to Cutting Carbon ...

Jun 04, 2013  The chemical secrets of a concrete Roman breakwater that has spent the last 2,000 years submerged in the Mediterranean Sea have been uncovered by an international team of researchers led by Paulo Monteiro of the U.S. Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab), a professor of civil and environmental engineering at the University of California, Berkeley.

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Suitability of sea water on curing and compressive ...

Mixing or curing of concrete with sea water is not recommended. Under unavoidable circumstances, it may be used for plain concrete or concrete structures which are permanently submerged. IS: 456-1978 SW (Mixing) Mixing water shall be potable and free from salts. Gives no

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The Effect of Mixing and Curing Sea Water on Concrete ...

Jan 01, 2018  The study shows that sea water affects the rate of gain in strength of concrete when used for mixing or curing. The strength of concrete made by using sea water was observed to be decreased by about 15% as compared to the similar concrete specimens made and cured with fresh water

get price

250+ TOP MCQs on Use of Sea Water for Mixing of Concrete ...

Concrete Technology Questions and Answers for Campus interviews on “Use of Sea Water for Mixing of Concrete”. 1. What is the permissible limits for construction of chlorides in water for RCC work? a) 200mg/l b) 2000mg/l c) 1000mg/l d) 500mg/l Answer: c

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THE SELF COMPACTING CONCRETE (SCC) USING SEAWATER

mixing of sea water on concrete using Blast-Furnace Slag Cement (BFS) produces Friedel ¶s salt and total pore volume decreased as well as increased strength compared with fresh water [11] . Research conducted by Erniati (2014, 2015a) on SCC used fresh water and seawater as water mixing and cured of concrete. In her research has

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