Offshore sand for reinforced concrete

Dias, W. P. S.; Seneviratne, Gapsn; Nanayakkara, Sma

doi:10.1016/j.conbuildmat.2007.04.006

Cited by 76 publications

(31 citation statements)

References 5 publications

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“…During carbonation, the presence of chloride ions can damage the steel's passive film, promoting the electrochemical process of steel corrosion. Therefore, the influence of chloride ions on the durability of carbonated concrete structures tends to be greater than that to the uncarbonated concrete structures [1,6,7]. There are many studies on concrete carbonation and the effects of chloride on concrete durability [8][9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Carbonation of concrete made with dredged marine sand and its effect on chloride binding

Cui

Dong

et al. 2016

Construction and Building Materials

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Section: Introductionmentioning

confidence: 99%

Carbonation of concrete made with dredged marine sand and its effect on chloride binding

Cui

Dong

et al. 2016

Construction and Building Materials

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“…However, the corrosion of reinforced concrete structures with sea sand was serious. Dias et al (2008), Choi et al (2014) and Dolage (2013) reported that the corrosion of steel bars in concrete with allowable sea sand Cl − content was similar to that of ordinary concrete; however, concrete with high sea sand Cl − content showed obvious steel corrosion. The application of RACSS is thus somewhat restricted.…”

Section: Introductionmentioning

confidence: 94%

Mechanical behaviors of GFRP tube confined recycled aggregate concrete with sea sand

Huang

2020

Advances in Structural Engineering

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An experimental program was undertaken to study the mechanical behaviors of glass fiber-reinforced polymer (GFRP) tube confined recycled aggregate concrete with sea sand (GRACSS) under the axial compression. Two different parameters were mainly considered: recycled coarse aggregates (RCA) replacement percentage (0, 100%) and type of sand (sea sand, river sand). Typical influences of RCA and sea sand on the strength, the deformation and the load–deformation curve of GRACSS were investigated. The test results showed that the failure pattern of GRACSS was similar to that of GFRP tube confined ordinary concrete (GCOC). The strength of GRACSS decreased with an increasing RCA replacement percentage, while sea sand could reduce the negative effect of RCA. It is also found that the peak deformation of GRACSS increased with the increasing RCA replacement percentage whereas with decreasing sea sand chloride ion (Cl–) content. The stiffness of the specimen was obviously influenced by the concrete type. Research findings indicated that the axial load-deformation curve of GRACSS can be divided into elastic-plastic and hardening stages. An analytical expression was proposed to calculate the load-deformation curve of GRACSS. Finally, the finite element method (FEM) was applied to study the effects of outer tube thickness, concrete strength, RCA replacement percentage and Cl– content in sea sand on the mechanical behaviors (strength and deformation) of GRACSS.

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“…It is a fact that the chloride ions in SWSSC can lead to the corrosion of embedded carbon steel and eventual destruction of concrete structures (Da et al, 2016;Dias et al, 2008;Olutoge et al, 2014). Therefore, the corrosion resistant materials, such as fiber reinforced polymer (FRP) and stainless steel (SS), are needed for replacing carbon steel in SWSSC structures to overcome the corrosion problem (Li et al, 2016a(Li et al, , 2016b.…”

Section: Introductionmentioning

confidence: 99%

Seismic performance of seawater and sea sand concrete-filled ultra-high performance concrete tubes under low-cycle reversed lateral loading

Liu

Shan

Lai

et al. 2020

Advances in Structural Engineering

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Seawater and sea sand concrete (SWSSC) filled ultra-high performance concrete (UHPC) tube (SFUHPC tube) column is a cement-based tubular composite column, which combines the excellent compressive strength and toughness of UHPC and lateral confining action from fiber reinforced polymer (FRP) hoops. The novel composite system has the potential to be used in marine engineering. The aims of this paper focus on evaluating the seismic performance of SFUHPC tube columns for being designed in costal and marine engineering. A series of low-cycle reversed lateral loading tests were conducted on five relatively large-scale specimens. FRP hoop volumetric ratio, compressive strength of filling SWSSC, and the types of FRP bar were selected as test parameters in this investigation. The failure modes, hysteretic responses and effects of main parameters were studied and discussed. SFUHPC tube columns exhibited flexural failure mode without visible spalling of the UHPC cover. It is noteworthy that the limit plastic drift ratios of all SFUHPC tube columns exceed the specified limits (0.02) in accordance to the rare earthquake requirement in seismic design code. The current study reveals that the proposed composite columns have acceptable ductility and relatively reliable lateral resistant performance for being used in the marine engineering. From the point of view of seismic performance, filling high strength SWSSC in UHPC tube is acceptable for the proposed composite system.

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Offshore sand for reinforced concrete

Cited by 76 publications

References 5 publications

Carbonation of concrete made with dredged marine sand and its effect on chloride binding

Carbonation of concrete made with dredged marine sand and its effect on chloride binding

Mechanical behaviors of GFRP tube confined recycled aggregate concrete with sea sand

Seismic performance of seawater and sea sand concrete-filled ultra-high performance concrete tubes under low-cycle reversed lateral loading

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