concrete exposed to seawater effects and preventions,prepare rich concrete with low water cement ratio which makes the concrete impervious. then the pores in concrete are very small and they cannot hold seawater results in the prevention of expansion by freezing of water and crystallization of salt in the pores. the concrete is of low water cement ratio. to make it workable for construction.effect of seawater on compressive strength of concrete,dec 01, 2002 table 4 shows the effect of material type on reduction of compressive strength of compositeconcrete systems soaked in live seawater for 180 days. the lowest pure compressive strength of the f-gcg-w-l specimen in all fiber wound specimens is due to larger moduli mismatch and difference in failure strains between glass fibers e 72.4gpa, f.
in this research work, the effect of salt water on the compressive strength of concrete was investigated. this paper therefore presents the result and findings of an experimental research on the effect of salt water on compressive strength of concrete. for this concrete cubes were cast using fresh wi and salt water for a design mix of m-30 11.83.31 by weight of concrete, and 0.45,effects of ocean salts on the compressive strength of concrete,jul 01, 1978 effects of ocean salts on the compressive strength of concrete michael a. taylor adam kuwairi university of california at davis communicated by r.e. philleo received april 17 in final form may 5, 1978 abstract the compressive strength of concrete is shown to be increased by the presence of sodium chloride or ocean salts in the mixing water.
it is the most important factor for gaining the strength of concrete. the lower wc ratio leads to a higher strength of concrete. generally, the watercement ratio of 0.45 to 0.60 is used. too much water leads to segregation and voids in concrete. the watercement ratio is inversely proportional to the strength of concrete.,impact of water quality on compressive strength of,6 a. t. michael, and s. kuwaini, effect of ocean water salt on the compressive strength of the compressive strength of concrete, cement and concrete research, vol. 8, pp. 492-500, 1978.
nov 14, 2016 compressive strength fresh water vs salt water curing research indicates that seawater is not suitable for the mixing and curing of both plain and reinforced concrete in marine conditions akinkurolere et al. 2007. however, concrete made with the seawater may have a higher early strength than normal concrete and the reduction in strength,effects of watercement ratios on the compressive strength,however, water-cement ratio above 0.65 was observed to have a very significant reduction effect on the compressive strength of the lateritic concrete mixes. this is in contrast to the performance of the concrete mixes which shows consistent decrease of compressive strength in water-cement ratio.
effect on workability and strengthof concrete due to variation in mixing water temperature renjuraj r, shabana a, salman faris, chinju g mohan, shahana m s, archa m s, sarath s . abstract this project was aimed at determining the effects of mixing-water temperature on the compressive strength andworkability of concrete.,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 splashtidal zone of marine environment.
oct 27, 2014 order concrete at 4,000 psi or greater. use of a water reducer in the mix will minimize water in the mix stronger concrete, yet maintain flowability keep it easy and cheap to place. excessive water will lower the strength of the concrete and if that water becomes trapped it could also have additional weakening effects on the surface.,effect of sodium chloride nacl on concrete,effect of sodium chloride nacl on concrete compressive strength . oladapo. s. a , ekanem. e. b . department of civil engineering, the federal polytechnic, ado-ekiti, nigeria. abstract in considering the effect of sodium chloride on the strength of concrete if added with the constituents of concrete
standardsarepresented. from the literature it is seen that, the reaction between water and cement affect the setting time, compressive strength and also lead to softening of concrete. all the impurities may not have adverse effect on the properties of concrete. the use of,effect of salinity on concrete properties nasaads,in the current investigation study, the impact of saltwater and freshwater on the characteristics of concrete compressive strength, splitting tensile strength and flexural strength are examined. concrete cubes, prisms and cylinders were cast with normal concrete mix design were estimated. different proportions of salt like 0, 10
apr 23, 2014 water is a key component in concrete. however, too much water can be detrimental to both the fresh and hardened concrete properties, especially strength,effects of salt water on concrete student arrive,history project topics and materials effects of salt water on concrete free research project topics and materials on effects of salt water on concrete
in this research work, the effect of salt water in the production of concrete was investigated. a total of ninety 90 concrete cubes were cast for compression strength test i.e. forty five cubes were cast using fresh water and the other forty five cubes were also cast using salt water. similarly, a total of ninety 90 concrete beams were cast,concrete mix design kumar properties,jan 03, 2019 strength of concrete depends upon, wc ratio rather than the cement content. higher the water cement ratio lower is the strength of concrete. as a thumb rule every 1 increase in quantity of water added, reduces the strength of concrete by 5. a water cement ratio of only 0.38 is required for complete hydration of cement.
the effect of cold weather on concrete strength and durability is an issue that surfaced recently on one of our projects where the night time ambient temperature fell to,effects of salt water on concrete building project,effects of salt water on concrete abstract this project is carried out to know the effects of salt water on concrete. salt water has salinity of about 3.5. in that, about 78 is sodium chloride and 15 is chloride and sulphate of magnesium. the result gotten from the experiment being carried out shows different result from the mix design, casting, curing and crushing of different dates of
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