Artificial sand's consistent quality enhances the strength and durability of concrete structures. Road Construction:Artificial sand finds extensive use in road construction projects. Its uniform particle size distribution and superior quality contribute to the production of high-performance asphalt mixes and concrete for road surfaces.

Integrated computation of corrosion is a set of techniques for investigating materials degradation problems on workstation or supercomputing center. In studying corrosion mechanisms researchers have a selection of methods at their requirement. From Fig. 1, the main tools available belong to six broad classes. The scale of passivation film ...

It investigates the impact of stone powder content on the corrosion resistance of concrete made with manufactured sand under the combined influence of chloride salts and stray currents.

In addition, this paper analyzes the steel corrosion in CASC and seawater sea-sand concrete (SSC) at the micro level. ... "Influence of artificial cracks and interfacial defects on the corrosion behavior of steel in concrete during corrosion initiation under a chloride environment." Constr. Build. Mater. 253 (8): ...

To study the influence of different water–binder ratios on the corrosion, permeability, and freezing properties of concrete, we produced different strengths of concrete with respective water–binder ratios of 0.32, 0.38, 0.50, and 0.66. The corrosion resistance of the concrete was studied via three corrosion methods: full immersion, …

The bond strength between reinforcing steel bars and cement concrete plays significant role in the structural performance for civil infrastructure. This work presents the bond performance of steel and concrete as interfacial shear strength, with the inclusion of effects of specimen diameter on embedment length, different aggregate grading and …

This research investigates the potential of utilizing recycled concrete aggregate (RCA) and recycled sand (RS), derived from crushed concrete cubes, as sustainable alternatives in construction materials. The study comprehensively evaluates the properties of RCA and RS, focusing on workability, impact resistance, abrasion resistance, and compressive …

The primary challenge in utilizing cement concrete mixed with seawater and/or sea sand lies in the risk of steel corrosion. In this study, the Cl-/OH-ratio of pore solution of seawater sea sand concrete (SSSC) with low water-to-binder (w/b) ratio is evaluated by water extraction technique. Half-cell potential (E corr) and corrosion …

Instead, the abundant sea water and sea sand resources in the world can be a solution. And as a kind of sea sand, coral sand has also been used as aggregates recently especially reef construction. The preparation of concrete materials with sea water and sea sand (including coral sand) has become a hot topic in marine civil engineering …

The casting of cubes having size 150 x 150 x 150 mm and beam having size 500 x 100 x 100 mm has done with use of M 20 grade of concrete as per IS 456:2000 and IS 10262:2019. Compressive strength and flexural strength is improved at 60 percent replacement of recycled aggregate with use of artificial sand.

Biogenic sulfuric acid corrosion resistance of NARC is superior to OPCC. Through biogenic sulfuric acid attack on concrete, comparisons between ordinary Portland cement concrete (OPCC) and new artificial reef concrete (NARC) prepared with sulphoaluminate cement, marine sand and sea water were made. Biogenic sulfuric …

1. Introduction. Durability issues caused by steel corrosion have become a global challenge in concrete structural engineering [1].For the reinforced concrete structures exposed to marine environments, the transmission of chloride ions through concrete cover leads to the breakdown of passive film and corrosion of steel …

In application, seawater sea sand concrete can be combined with corrosion-resistant reinforcement, such as FRP rebar, corrosion-resistant coating steel bar, and stainless steel bar. ... and Wu et al studied the influence of mineral admixture on the performance of seawater sea sand concrete. Artificial neural network (ANN) is …

However, because of the incorporation of marine sand and sea water, the [Cl −]/[OH −] [16] values of the concrete increase, which leads to the corrosion of steel bars in concrete. Hence, decreasing the content of free chloride ions is a major concern for concrete with sea water and marine sand.

Various specifications of artificial sand. 1 The fineness modulus of coarse sand is 3.7-3.1, and the average particle size is 0.5mm or more. 2 The fineness modulus of medium sand is 3.0-2.3, and the average particle size is 0.35mm to 0.5mm. 3 The fineness modulus of the fine sand is 2.2-1.6, and the average particle size is 0.25mm to 0.35mm.

Pull-out tests of reinforced concrete specimens were then conducted to assess the corroded steel/concrete bond characteristics.Experimental results showed that corrosion rate of steel bars and ...

DOI: 10.1016/J.CORSCI.2021.109438 Corpus ID: 233577174; Corrosion of rebar in concrete. Part III: Artificial Neural Network analysis of chloride threshold data @article{Zhu2021CorrosionOR, title={Corrosion of rebar in concrete.

2. Concrete. Concrete has become an ideal building material because of its high strength, low cost, excellent processability and durability [].Over the last 200 years, the rapid development of urbanization has been closely related to the widespread use of concrete [].Concrete is a cementitious material made by mixing cement, sand, stone, …

Durability studies of concrete made by using artificial sand with …. chloride is free and leads to the initiation of the corrosion … Both concrete made using artificial sand and natural sand are moderate to chloride permeability. » Free online chat! corrosion inhibitor, Concrete Admixture, Concrete Super …. Import corrosion inhibitor, concrete …

2.1. Seawater characteristics. For concrete, water plays an important role in its formation process, and the quality of mixing water can adversely affect the strength, durability, and workability of concrete [22]. Many salts in seawater have unfavorable or favorable effects on the properties of cement-based materials.

ing that desalinated sea-sand concrete has a slightly better sulphate corrosion resistance than river-sand and sea-sand concrete. Potential sulphate corrosion was observed in sea-water sea-sand concrete, but the addition of active additives greatly improved its sulphate corrosion resistance [31]. Han et al. [16] formulated an environmentally ...

The influence of soil heterogeneity on the corrosion of underground metallic pipelines and the resulting evolution of localised corrosion patches were examined. A field-validated multiphysics numerical model coupled with random field realisations of the variables influencing corrosion was used in the investigation. The degree of saturation …

Seawater typically contains approximately 20,000 mg/l of chloride, and sea sand has around 0.082% chloride content by mass, posing a substantial threat to steel corrosion in concrete structures [10].There are some researchers [11] who try to use corrosion inhibitor to protect steel rebar from corrosion in marine environment. In …

To ensure the durability of sea-sand concrete meets ... Following seven years of exposure, the corrosion inhibitors were found to observably inhibit steel corrosion in sea sand concrete. Hama ... (ECE) from steel- reinforced concrete specimens contaminated by "artificial" sea-water. Corros. Sci. 2006; 48:110. doi: 10.1016/j.corsci ...

Huang et al. developed seawater sea sand engineered cementitious composites for marine constructions as a solution to the scarcity of freshwater and river/artificial sand. Das et al. proposed the use of alkali-activated slag coatings to inhibit corrosion of steel reinforcement in seawater sea sand concrete. The mechanical …

The sea sand was sourced commercially from deep sea bed mining and contained a chloride content of 1.8554 g/L [55].The sea sand was sieved to ensure only particle sizes less than 1.18 mm were used to prepare NSSC and UHP-SSC [19].The seawater used for the mix was prepared artificially by adding analytical grade chemicals …

This standard practice was prepared in 2019 by NACE TG 356, "Reinforced Concrete: Stray-Current-Induced Corrosion." This TG is administered by Specific Technology Group (STG) 01, "Reinforced Concrete"; and is sponsored by STG 05, "Cathodic/ Anodic Protection." This standard practice is issued by NACE International under the auspices ...

Recent systematic studies about the correlation between the corrosion processes and sewer environment factors should be utilized to improve the prediction capability of service life by sewer models. This paper presents an artificial neural network (ANN)-based approach for modelling the concrete corrosion processes in sewers.

However, seawater and sea sand contain considerable amounts of chloride ions, which will seriously affect the durability of concrete, especially concerning the corrosion of steel bars [3]. Fiber-reinforced polymer (FRP) bars are suggested as a potential replacement for steel bars in SSC due to their superior mechanical properties …

Corrosion Resistance of Concrete. Corrosion of this rebar caused spalling on a concrete step. The corrosion of reinforcing steel can be a problem in concrete structures. Corrosion of steel produces hydrated iron oxide or rust, which is very expansive. This expansion builds up internal pressure until the concrete fails in the form of spalling.