Sea Sand Concrete Additives
Study on carbonation resistance and chloride ion …
Wei [25] tried adding fly ash and slag to sea sand concrete, but saw little impact on the densification of the sea sand passive film. Jiang [26] found sea sand concrete with 20% fly ash showed good mechanics and durability. They found chloride ions increased early strength but significantly decreased long-term strength of sea sand concrete.
Development of sustainable concrete incorporating seawater…
The effects of seawater and undesalted sea sand on the early-age hydration, mechanical performance, water absorption, leaching behavior and hydration products of Portland cement mortars with only ...
Preliminary investigation of artificial reef concrete with
Mineral additives such as coal fly ash cement (FAC) and blast-furnace slag (BFS) do not clearly decrease the pH in the surface region, as surface pH after 5 months of aging are still >12 [4]. ... Therefore, when constructing oceanic island and reef foundations, this type of seawater sea-sand concrete is preferred due to its improved ductility ...
Benefits of using sea sand and seawater in concrete: a …
Applying seawater (with the 96.5% proportion of the whole water source on earth) instead of freshwater in concrete buildings could offer a sustainable approach to protect …
(PDF) Seawater-mixed concretes containing natural and sea sand
additives are often used in the production of seawater-mixed concrete. Pozzolanic materials, such as y ash, ... used FRP bars in concrete made with seawater and sea sand, for appli-
Seawater concrete: A critical review and future prospects
The combined use of seawater and sea sand is also found to increase the seven days compressive strength of concrete by 36–76%, but 28 days strength is approximately the same, and strength at 180 days is 3.7–10.2% lower when compared with freshwater concrete (Xiao et al., 2019).
(PDF) Coral Concrete: Overview, Composition and its
C1240 for use as an additive in cement mortar and concre te to improve mechanical properties and . ... seawater, sea sand and coral sand. Adv. Mater. Res. 706–708, 512–515 (2013)
Concrete Exposed to Seawater – Effects and Preventions
Seawater may carry sand and silt especially at the shallow end of the sea. When it forcibly contacts the concrete surface abrasion occurs. Abrasion also occurs due to mechanical force buy wave action. Theoretical Aspects If concrete structure is built in seawater, then the most affected area of the structure is well above the high water mark.
Effect of multi-adhesives on the properties of the concrete …
The paper presents the research results of the influences of some adhesive types on the properties of reinforced concrete using local materials such as sea sand and sea-water.
Sea Sand for Construction[Reality and Truth]
Advantages of Sea Sand. Sea sand particles are rounded or cubical, same as river sand. Grading of the sea sand is finer than the river sand. It does not contain silt or organic materials. Readily available though they need to be cleaned. …
Sea Sand Concrete- A Review on Current Status
The present paper provides comprehensive evaluation of utilization of sea sand in concrete and emphasises the need for further research on sea sand as fine aggregate in concrete. Key words: Sea ...
Evaluation of the long-term performance of high-performance concrete …
The study aims to present the mechanical properties and durability of high-performance concrete produced with high-volume ground granulated blast furnace slag (GGBFS) and river sand/sea sand blended (S-HPC). The concrete mixtures were designed with a constant ratio of river sand and sea sand blending at 60:40 and various GGBFS content as ...
Investigation of the compressive strength of pit sand, and sea sand …
Pit sand–cement, and sea sand-cement mortar prisms were separately prepared using cement-sand mix ratio 1:3, and RHA composition of 0–44.44%. The optimum strength of the pit sand-cement mortar prisms after 1, 2, 7, and 28 days was recorded at 11.11% RHA by the mass of the cement. However, the compressive strength of the sea sand-cement ...
Durability Characteristics of Sea Sand in Cement Mortar for …
2.3. Sea sand is obtained from the shores of Malpe, Uttar Kannada district, Karnataka; the properties of sea sand are compared with river sand, as per Table 2 shown, which indicates the properties of sea sand is similar to river sand [5, 6].. The sea sand used has 0% of silt content compared to river sand; as such, the binding property will be reduced with effects …
Feasibility of using geopolymers to investigate the bond …
An experimental study is presented in this article to demonstrate the concept and feasibility of ultra-high-performance seawater sea-sand concrete: ultra-high-performance seawater sea-sand ...
Properties and Application of Sea Sand in Sea Sand–Seawater Concrete
More recently, the use of seawater sea-sand concrete (SSC) ... Additive manufacturing is a disruptive technology that can integrate digitalization and automation in construction. Its application ...
Application of sea sand for 3D concrete
The paper shows the promising use of sea sand for additive technologies in construction. The use of sea sand reduces the setting time of the concrete mix and increases the ... properties of sea-sand concrete with fumed silica . Construction and Building Materials. 188. 1085-1091 [4] Younis A, Ebead U, Suraneni P and Nanni A 2018 Fresh and ...
Seawater concrete: A critical review and future prospects
The results indicate that the utilization of seawater and sea-sand in preparation of concrete is very promising with accelerated cement hydration, improved pore structure and durability only if ...
Fresh, hardened, durability and microstructure properties of …
The study analyses the influence of additives and admixtures on SWC's performance by considering constituents such as cement, aggregates and seawater. It also explores the impact of manufacturing techniques, including mix design. ... (sea sand concrete) achieved the highest dynamic modulus of elasticity at 28 days, while SSC consistently ...
Use of supplementary cementitious materials in seawater–sea sand …
The utilization of abundant local resources, such as seawater and sea sand, to produce seawater–sea sand concrete (SSSC) has emerged as a viable alternative for creating sustainable building materials, particularly in coastal regions [10], [11], [12].In SSSC, the fine aggregate and mixing water in ordinary concrete are typically replaced with sea sand and …
Development of admixtures on seawater sea sand concrete: …
Eco-friendly seawater sea-sand slag-based geopolymer mortars (SS-SGMs) were prepared by blending seawater, sea-sand, Basalt Fibres (BF), Polypropylene Fibres (PPF), …
SEA SAND AS FINE AGGREGATE FOR CONCRETE PRODUCTION …
Dr. Tran Tuan Hiep (Vietnam) Researching on using sea sand to produce cement concrete for road pavement construction The strength of cement concrete using sea sand is less than traditional cement concrete using river sand from 4 - 10%. Strength of cement concrete using sea sand can reach 30 – 35 N/mm2 meeting requirements of concrete for ...
Development and mechanical behaviour of ultra-high …
An experimental study is presented in this article to demonstrate the concept and feasibility of ultra-high-performance seawater sea-sand concrete: ultra-high-performance seawater sea-sand concrete samples with a 28-day cube compressive strength of over 180 MPa were successfully produced; the samples were made of seawater and sea-sand, but ...
Greener lightweight concrete using seaweed industrial …
The mixtures included cement, sand, palm oil fuel ash, water, a protein ing agent, and a superplasticizer. ... This study used chemicals such as concrete hardener additive (Bestone 1451), plasticizer (Polymax 1417), ... emissions, and energy costs related to the equipment used in LFC production. The production of organic salt, or sea ...
Experimental investigation of Strength and …
Microstructure properties of Sea water sea sand concrete Mrs. Ashwini R Pati1, Dr.Arun Kumar Dwivedi2 1(Research Scholar, Department of Civil, ... is the most widely used supplementary cementitious material Using fly ash as a concrete additive significantly not only adds specialized properties to concrete but can also help in the reduction of
Development of Engineered Cementitious …
The mixing procedure was initiated by dry mixing of cement, metakaolin, sea sand, fly ash, and fine silica sand using a standard mortar mixer for 2 min (140 rpm). Afterward, the water and water reducer were added to the …
Review of the Properties of Fiber-Reinforced Polymer …
Fiber-reinforced polymer (FRP)–reinforced seawater–sea sand concrete (SWSSC) is a new structure form for coastal infrastructure, especially for island construction. The degradation mechanism of FRP bars in SWSSC involves water molecules, hydroxide ions, chloride ions, high temperature, and stress. ... and sea sand mortar prisms produced ...
Interface and anti-corrosion properties of sea-sand concrete …
These results provide the possibility of using non-desalination dredged sea-sand, for concrete preparation and attain the optimized production efficiency and performance of sea-sand concrete. Furthermore, the choice of one-electron oxidized species of additives provide a mechanistic insight into the formation of Friedel's salt assisted sea ...
Effects of Seawater and Sea-Sand on Concrete Properties: A …
Xiao J, Qiang C, Nanni A, Zhang K (2017) Use of sea-sand and seawater in concrete construction: Current status and future opportunities. Constr Build Mater 155:1101–1111. Article Google Scholar Yamazaki K (1974) Viewpoints on using sea sand in concrete as fine aggregates in Japan. Concr J 12(10):72–76
Application of sea sand for 3D concrete
The paper shows the promising use of sea sand for additive technologies in construction. The use of sea sand reduces the setting time of the concrete mix and increases the initial strength ...
Properties and Application of Concrete Made with Sea …
sand". A combination of sea water, unwashed sea sand, normal portland cement (OPC), ground-granulated blast-furnace slag (GGBS), fly ash (FA), silica fume (SF), and a special chemical admixture containing calcium nitrate (CN) was adopted to densify concrete. This concrete is hereafter referred to as "sea water and unwashed sea sand concrete ...
Effect of sea sand on concrete durability and its management
And Kaushik et al. (1995) also found that the compressive strength would be decreased by 13% at 28 days when using seawater. Most studies agreed that seawater or/ and sea-sand concrete had a ...
Properties and Application of Concrete Made with Sea …
This paper describes the development of "concrete made with sea water and unwashed sea sand". A combination of sea water, unwashed sea sand, normal portland cement (OPC), …
Development of admixtures on seawater sea sand concrete: …
This research discussed the composition and properties of seawater sea sand concrete (SSC), as well as the transport and binding mechanisms of the chloride ion, which is …
Experimental Investigations on the Properties of Epoxy-Resin …
Results also show that 15% replacement of fine aggregate by sea sand in air-cured polymer concrete exhibited enhanced strength and durability properties; thus, the …
Types of Admixtures & Additives for Concrete | DIY Doctor
Types of Admixtures and Additives for Concrete. ... sometimes these are dictated by the types of materials used e.g. the colour and shade of sand, aggregate etc but it can also be coloured using special dyes. Available in a whole range of different tones and colours including black, brown, yellow and many more, the required quantity of dye is ...