These rules set limits on salt content, usually between 0.5% and 1.0%, to prevent damage like rusting in concrete. Sea sand must be thoroughly washed to remove salts and impurities and then tested for its chemical and physical properties before use. Tests often check for strength, durability, and moisture absorption. ... Coastal landscaping ...
WhatsApp: +86 18221755073
Request PDF | On Dec 1, 2020, T. Dhondy and others published Properties and Application of Sea Sand in Sea Sand–Seawater Concrete | Find, read and cite all the research you need on ResearchGate
WhatsApp: +86 18221755073
This project report summarizes research conducted on developing self-compacting concrete using industrial waste. A group of students conducted the research under the guidance of Prof. M. B. Kumthekar to fulfill …
WhatsApp: +86 18221755073
The results showed that the sea sand and seawater concrete held slightly higher strength at 28 days than conventional concrete. Suraksha et al. presented two numerical approaches to study the durability of basalt fiber-reinforced polymer bars in seawater and sea sand concrete solutions subjected to various temperatures. The main goal of their ...
WhatsApp: +86 18221755073
This paper has presented a critical review of existing and ongoing research on the use of sea-sand and/or seawater as raw materials for concrete to replace river sand and …
WhatsApp: +86 18221755073
50% of sea sand . compressive strength percentage increases on Fully Sea sand based and 50% M-Sand + 50% Sea sand respectively for 28 days is 8.10% & 1.52% compared to Fully MSand based concrete. split tensile strength percentage decreases on Fully M-Sand and 50% M-Sand + 50% Sea sand respectively at 28 days is 13.33% & 9.47% compared to Fully ...
WhatsApp: +86 18221755073
CDE Mariner range of sea sand washing plant can treat upto 350tph sand for production of both concrete sand and plaster sand (depending on feed gradation) as per BS 882:1992 specification. In keeping with the core competency of CDE, the plants are skid mounted and require minimum foot print leading to low unit power consumption and minimum man ...
WhatsApp: +86 18221755073
Urbanization and growing populations have accelerated the development of human infrastructure, as well as the reliance and demand on concrete and steel bars [1].River sand and freshwater are typically used in the making of concrete [2].In some coastal cities and island areas, river sand for construction is in short supply due to the depletion of freshwater and river sand …
WhatsApp: +86 18221755073
The cement used was P.O32.5. In the seawater and sea-sand concrete, sea stones, and sea-sand were used for aggregates, but ordinary gravel and natural medium sand were used in ordinary concrete. The fine …
WhatsApp: +86 18221755073
Seawater sea-sand concrete (SSC) is a type of concrete that replaces freshwater with seawater and substitutes river sand with sea-sand. SSC provides advantages such as continuous graded sea-sand [17], comparable or higher early strength than ordinary concrete [18,19], and favorable workability and pumpability [20].
WhatsApp: +86 18221755073
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
WhatsApp: +86 18221755073
The high corrosion resistance of fiber-reinforced polymers (FRPs) and related concrete structures means that they are suitable for application in the marine environment. Therefore, the replacement of steel bars with fiber-reinforced polymer (FRP) bars enhances corrosion resistance in seawater sea-sand concrete (SSC) structures. Geometric parameters …
WhatsApp: +86 18221755073
This study investigates the feasibility of establishing an environmentally sustainable ultra-high performance concrete from seawater and sea sand (SWSS-UHPC) which utilizes industrial byproducts (i.e., ground slag and silica fume) by partially substituting ordinary Portland cement (OPC). Several SWSS-UHPC trial mixes were prepared with varying cement …
WhatsApp: +86 18221755073
In order to research the flexural behavior of shape memory alloy (SMA)-reinforced seawater sea-sand concrete (SWSSC) beams and improve their self-healing ability, three SMA SWSSC beams and one anti-corrosive steel bar SWSSC beam were designed. The influence of the reinforcement ratio, strength grade of SWSSC and type of reinforcement on the flexural …
WhatsApp: +86 18221755073
Seawater and sea sand concrete (SWSSC) refers to concrete prepared by replacing river sand and freshwater with sea sand and seawater. Sea sand has the advantages of low mud content, good grading, and excellent working performance, making it an ideal building material [6].As one of the earliest countries in the world to use sea sand, Japan began using …
WhatsApp: +86 18221755073
The use of non-potable water sources for concrete mixing is regulated by prescribed limits on water quality parameters, such as the amount of chlorides, sulphates, total solids, total alkali content, total suspended solids, and pH [4].Gokulnathan et al. (2021) [5] have summarized the recommended water quality parameters for concrete mixing present in …
WhatsApp: +86 18221755073
However, seawater and sea sand contain various salt components, including Cl-, Na +, SO 4 2-and Mg 2+, etc., which alter the cement hydration reactions and rheological properties of concrete in the early stages of concrete curing through ion permeation, thereby significantly affecting the mechanical performance and durability of concrete structures [3], [4], …
WhatsApp: +86 18221755073
The discussions presented in this report have clearly indicated that sea-sand and seawater structures are most attractive in marine/coastal construction, where steel corrosion is a major concern and access to river sand and freshwater is …
WhatsApp: +86 18221755073
Title: Compression Behavior of Seawater and Sea-Sand Concrete Reinforced with Fiber and Glass Fiber-Reinforced Polymer Bars Author(s): Jikai Zhou, Xu He, and Wei Shen Publication: Structural Journal Volume: 117 Issue: 4 Appears on pages(s): 103-114 Keywords: axial and eccentric compression; bearing capacity; crack width; glass fiber-reinforced polymer …
WhatsApp: +86 18221755073
However, the main reactive ions in seawater and sea sand potentially threaten the durability of concrete structures, especially Cl − and SO 4 2 −.Several studies have shown that free chloride ions are closely related to the corrosion of the passivation film on the surface of steel reinforcement [8], [9], [10], [11].Furthermore, the inappropriate utilization of seawater and sea …
WhatsApp: +86 18221755073
The results obtained for the compressive strength of concrete showed contradictory reports [7]. ... This study investigated the properties of seawater and sea sand concrete (SSC), considering the ...
WhatsApp: +86 18221755073
effective use of sea water and sea sand when producing concrete in a region where fresh water and land sand are not readily available, such as isolated islands and coastal areas. This paper reports on the physical properties of concrete made with sea water and unwashed ... emissions and construction cost in a project using this concrete on an ...
WhatsApp: +86 18221755073
demonstration is an open culvert project undertaken in Italy that was constructed during the last week of November 2016 along Motorway A1, near the city of Piacenza. Three concrete mix designs were considered (traditional concrete, concrete mixed with seawater and concrete produced with recycled
WhatsApp: +86 18221755073
For both the sea sand and river sand, the optimum molarity value of the NaOH solution is around 10 M. Compared with the molarities of 8 M and 12 M, the compressive strength when the molarity is 10 M increases by 53.7% …
WhatsApp: +86 18221755073
In this study, RCAC and Natural Aggregate Concrete (NAC), both designed with a compressive strength of C60, were prepared. Initially, the fundamental physical properties of …
WhatsApp: +86 18221755073
Sea sand is a widely available form of sand on comparing with the river sand. Sea sand is not used widely because it may contain chloride, sea shells in large numbers and other harmful chemicals like Fe 2 O 3, V 2 O 5, Cr 2 O 3, Ga 2 O 3, Br 2 O and Re 2 O 7.The usage of sea- sand may either address the concrete's existing problems in strength and durability or …
WhatsApp: +86 18221755073
Strong evidence exists that a combination of mineral admixtures for the concrete and reinforcement with fiber reinforced polymer (FRP) can effectively solve the durability …
WhatsApp: +86 18221755073
The results show that the early strength and late strength of concrete based on seawater and sea sand are better than concrete based on freshwater and sand.
WhatsApp: +86 18221755073