Incorporating sea sand into self-compacting concrete: a systematic review. The increasing demand for river sand, driven by infrastructure development, poses …
This paper presents the study of steel fiber reinforced concrete with artificial sand as fine aggregate. Three matrices with compressive strength 20, 30 and 40 MPa were designed and reinforced ...
That portion of an aggregate passing the 4.75 mm sieve and predominantly retained on the 75 µm sieve is called "fine aggregate" or "sand," and larger aggregate is called "coarse aggregate". Coarse aggregate may be available in several different size groups, such as 4.7–19 mm, or 19–37.5 mm. Fine aggregates generally consist of ...
3.Shape of fine aggregates: Irregularly nodular shaped sand is preferable to completely round grained sand. The shape of the aggregate plays a more important role in the coarse aggregate than in the fine aggregate. 4.Specific Gravity: The specific gravity of aggregates is the ratio of the density of water to its density.
Keywords: manufactured sand, concrete, artificial neural networks. 1. Introduction ... Nevertheless adequate concrete incorporating manufactured sand as sole fine aggregate can be made. Indeed, at the same w/c ratio, the compressive and flexural strengths of manufactured sand concretes were higher than those of their natural sand …
The fine aggregate was ordinary river sand. 2.2.2. Strength, apparent density, and water absorption of coarse aggregates ... Artificial aggregate water absorption-compressive strength compared with previous studies. Fig. 12 summarizes the overall comparison of artificial aggregate strength and water absorption between this …
Thus, there is a growing tendency for concrete production to use desert sand-doped artificial sand as the fine aggregate. This paper investigated the microstructure, …
1. Introduction. Rapid urbanization made concrete the most widely used construction material worldwide. As the major fine aggregate of commercial ready-mix concrete, the natural river sand resource is therefore depleting [1], [2].On the other hand, the fine fraction of the recycled concrete aggregate derived from construction and …
The study used manufactured sand in incomplete or complete replacement for natural sand. The basic aggregate tests considered were sieve analysis for fine and coarse aggregate, specific gravity ...
Crushed rock sand (CRS), industrial by-products (IBP) and recycled fine aggregates (RFA) are different types of alternative fine aggregates. The economic, …
This paper presents the investigation results of SFRC with artificial sand as fine aggregate tested in flexure and comparative study of it energy absorption capacity.
It is classified as the concrete "impermeable" under aggressive conditions. The present study concluded that artificial sand is substitute material to natural sand as fine aggregate in the presence of silica fume with poly carboxylate ether-based superplasticizer can be suitably used in making eco-friendly HPC.
The maximum effective replacement level for waste foundry sand as fine aggregate in concrete has been identified as 20 % [4]. Bottom ash and GGBS can be used in …
International J. Technology; July – December, 2015; Vol. 5: Issue 2 147 Table -3. Mix proportions for M40 grade concrete for varying replacement of fine aggregate with M-sand
Sieve analysis result of fine aggregates are in shown in Table 1 and the other test data for materials are given in Table 2. Table1: Sieve analysis result of fine aggregates 4.1.3 GBFS The blast furnace slag was procured from Durgapur Steel Plant a unit of Steel Authority of India Limited.
strength of concrete by partial replacement of artificial sand by foundry sand as fine aggregate. Tests were carried out on cubes, cylinders and unreinforced beams to study the mechanical properties of concrete using foundry sand and compared with concrete with artificial sand as fine aggregate. Artificial sand was replaced with five percentage ...
However, in general, all these nomenclatures refer to only one class of material known as artificial sand, which is made through a process of controlled crushed fine aggregate produced from ...
The 28d compressive strength of concrete prepared using this artificial aggregate ranges from 15.8 MPa to 31.8 MPa, with flexural strength ranging from 2.1 MPa to 3.2 MPa. Tang et al. [14], [18] produced artificial aggregate using a mixture of fine incineration bottom ash (IBA) and concrete slurry waste (CSW) as the primary raw …
The finished artificial sand is processed by vibrating screen and can be divided into coarse sand, medium sand and fine sand. 5.Cleaning. In order to improve the quality of finished sand, especially the cleanliness, the sand washing machine can be configured after the sand making process to clean the sand.
This research work focused on the viability and valuation of recycled concrete sand aggregates (RCSAs) in the preparation of mortars. An alternative recycling process was proposed to improve the physical and mechanical properties of RCSAs-based mortars and thus promote the efficient use of demolition concrete waste in construction.
E ects of desert sand substitution on concrete properties using desert sand-doped quartz sand as the ne aggregate Ceramics – Silikáty 66 (4) 540-554 (2022) 551 positively correlated to the ...
Manufactured sand refers to fine aggregate which is less than 4.75mm. In this research, Mogadishu Manufactured sand was refined from the crushed limestone rock as a replacement for river sand.
This paper presents the study of steel fiber reinforced concrete with artificial sand as fine aggregate. Three matrices with compressive strength 20, 30 and 40 MPa were designed and reinforced with crimpled steel fibers at dosage rate of volume fraction 0, 0.5, 1.0, 1.5 and 2.0 percent. The specimens were prepared, cured and tested for ...
This 358 page book presents the properties of concrete as needed in concrete construction, including strength and durability. All concrete ingredients (cementing materials, water, aggregates ...
Ultra-high-performance lightweight concrete (UHPLC), a sustainable and environmentally friendly concrete crafted with artificial lightweight aggregates to preserve non-renewable natural resources like river sand, has garnered significant attention due to its exceptional mechanical properties. This study explores the use of artificial lightweight fine …
Since, artificial fine aggregate contains large amount of fines, can be used as an alternative to river sand. Due to high fines content in artificial fine aggregate, the strength and durability properties of the concrete are …
Workable concretes were produced using manufactured sand as the sole fine aggregate at different w/c ratios. The presence of clays in manufactured sands can …
Fine aggregate; Coarse aggregate; Fine Aggregate When the aggregate is sieved through a 4.75mm sieve, the aggregate passed through it called fine aggregate. Natural sand is generally used as fine aggregate, silt …
Fine and natural coarse aggregates. Locally available dune sand was obtained, and its key physical properties were determined. The tests conducted are sieve analysis, specific gravity, water absorption, unit weight, moisture content, and fineness modulus in accordance with the respective ASTM standards [61,62,63].The outcomes of …
In the current study, Light Weight Geopolymer Fly Ash Sand (LWGFAS) was evaluated as a potential alternative to natural fine aggregate. In the present investigation, …
There is a growing need to find ways to reuse fine concrete waste from the construction industry. In this study, recycled concrete fines were granulated and used as lightweight aggregates. Ladle slag, a steel industry residue, was used as a co-binder in different ratios (0, 10, 20, and 30%). The materials were blended and granulated, and …
The effect of artificial sand and crush sand as fine aggregate in concrete is to substitute the natural sand content in concrete. The experimental work is mainly concerned with the study of mechanical properties like compressive strength, split tensile strength and flexural strength of concrete by full replacement of natural sand by artificial sand as fine …
A concrete of nominal mix 1:2:4 using w/c ratio of 0.62 were adopted to produce concrete cubes 150mm x 150mm x 150mm. 7, 14, 21, 28 days hydration period was adopted. At each hydration period, three cubes were used each for both concrete produced with river sand (fine aggregate) and that of dune sand (fine aggregate).
Therefore, the use of alternative fine aggregates to river sand in concrete is a better solution to address excessive river sand mining as well as fulfil the present demand of fine aggregates in the construction sector [1]. Earlier studies investigated the suitability of granite dust, crushed rock, ceramic waste, recycled glass aggregate (RGA ...
🕑 Reading time: 1 minute Fine aggregate is on of the major constituents of concrete which can influence concrete mix design substantially. Various factors such as fine aggregate fineness modulus, moisture content, …
Sand particles composed of quartz have a specific gravity between 2.65 to 2.67.While inorganic clays generally range from 2.70 to 2.80.Soils with large amounts of organic matter or porous particles (such as diatomaceous earth) have specific gravity below 2.60 (Some range as low as 2.00).
Sand. Though typically associated with beaches, sand has a lot of industrial uses. Sand is a small, naturally occurring form of quartz. There are also manufactured sands, known as artificial sands, created …
Construction aggregates derived from primary resources either by crushing of sound rock masses (crushed stone aggregates) or from naturally occurring unbound clastic sediments (natural sand and gravel aggregates) make the most voluminous mineral raw material exploited by humans nowadays (Fookes 1991; Přikryl 2017).Extremely low …
Recycled concrete with manufactured sand (RCM) is a type of recycled concrete that uses manufactured sand as fine aggregate, and there have been limited reports on the investigation of its high temperature performance in the construction industry. This study, starting from two curing regimes, explored the high temperature performance …
