Machine-made sand instead of natural sand has become an inevitable choice for the sustainable development of the concrete industry. Orthogonal experiment and grey correlation analysis were used to investigate …
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machine-made sand concrete was better than that of concrete with natural sand. This is because the machine-made sand is rougher and has more angles than the natural sand,
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River sand is prone to variations in quality and gradation, which can affect the workability of concrete. M sand, being manufactured, offers consistent quality and gradation, ensuring better control over the mix proportions and reducing the …
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Concrete with m sand has very poor permeability as compared to river sand. But when river sand is used in concrete the permeability of concrete is less poor as compared to river sand. 11: It has more water absorption 2 to 4 %. Whereas water absorption of river sand is less 1.5 to 3%. 12: Concrete with m sand has less slump as compared to ...
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River sand serves several purposes around construction. River sand is crucial for concrete. Concrete has cement, water, sand and aggregates. River sand is a key aggregate. Its fine texture helps create a smooth, workable mix. This mix is easy to pour and shape. Then, river sand is used in plastering and masonry.
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By adjusting the proportion of machine-made sand and river sand, the application of using the machine-made sand in C30 and C50 concrete was explored. The results indicate that the proportion of machine-made sand is 40% in C30 concrete, which makes the concrete show the best performance and the maximum compressive strength.
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When compared to m sand, river sand has a higher permeability while used in concrete. However, M sand has a 2 to 4% water absorption rate. River sand, on the other hand, absorbs only 1.5 to 3% of the water.
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2. The surface of river sand is usually smooth after being scoured by water flow, while the manufactured sand has many sections and rough surface, so the machine-made sand particles can better combine with cementitious materials such as cement. 3. The raw materials of manufactured sand sand can come from some solid wastes.
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machine-made sand cement concrete C50 reached the best when the machine-made sand cement content was 5%. Yang Lu [17] et al. conducted the study on the performance of machine-made sand
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The cost of M-sand may be lower compared to river sand, especially in regions where river sand is scarce or subject to high demand. Suitability for Concrete and Mortar: Both river sand and M-sand can be used in concrete and mortar mixtures, but the appropriate type and ratio depend on specific project requirements and local standards.
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When comparing M sand to river sand, it's crucial to weigh their advantages and disadvantages. M sand stands out due to its consistent …
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Manufactured sand crushed from stone or gravel, also known as machine-made sand, artificial sand or crushed-stone sand, has been used as a substitute of natural sand in concrete [1], [2], [3]. This is also becoming a global trend to produce concrete by using manufactured sand in the safeguarding of limited natural sand resources [4], [5], [6 ...
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[1]. Compared with river sand, machine-made sand has the advantages of high economic benefit, controllable quality and easy to adjust production because of its convenient material and industrial production [2]. Popularizing and applying machine -made sand is not only the main measure to alleviate the dilemma of sand used in
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River-sand mining has risen dramatically in the last few decades to fulfil the need for concrete in the building sector. The sand in a river's bed preserves its environmental equilibrium (Farahani and Bayazidi, 2017).Excessive river-sand mining for use as fine aggregate in concrete is responsible for riverbed degradation, which causes a wide range of problems, including the …
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Machine-made sand is a kind of artificial sand obtained by processing granite, pebbles, limestone, etc. through crushers, sand making machines, and sand washing machines. This article is about feature of manufactured sand, M sand process, equipment. The compare of m sand and river sand. Why use manufactured sand. 1.
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The mechanical and working properties of the machine-made sand concrete reach the optimum condition when the mineral admixture is 20%, the sand rate is 46%, the stone powder content is 10% and the ...
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The artificial sand produced by proper machines can be a better substitute to river sand. The sand must be of proper gradation (it should have particles from 150 microns to 4.75 mm in proper proportion). ... Gradation is made in accord with the usage of the sand. There are testing sieves, consists of 4.75mm, 2.36mm, 1.183mm, 600microns, 300 ...
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Similarly, the formulation of high-performance concrete from machine-made sand is one of the concrete material sustainability studies [26,27]. Due to the wide distribution of limestone machine-made sand, a large number of studies focus on machine-made limestone sand [28–31], and less research on machine-made sand of other lithologies. River sand
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The content of needle flakes in machine-made sand is most sensitive to the crushing index value. The crushing index value of machine-made sand is generally above 30%, or even higher. For mixing ordinary concrete, machine-made sand with crushing index value below 30% should be …
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Concrete made with river sand has good durabilit y due to its physical properties [25] . 3) Workability: Workability refers to the ease with which concrete can be placed,
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Machine-made sand instead of natural sand has become an inevitable choice for the sustainable development of the concrete industry. Orthogonal experiment and grey correlation analysis were used to investigate the performance of machine-made tuff sand concrete. The optimal concrete mix ratio of machi …
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Among the materials, fly ash complies with the requirements of the standard GB/T 1596-2005 "fly ash used in cement-based concrete", its apparent density is 2500 kg/m 3, the specific surface area is 455.2 m 2 /kg, and it is a 30 mm continuous graded natural aggregate; fine aggregates are natural river sand (NRS) and machine-made sand(MS) in ...
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Yusuf and Olawumi (2015) make a similar study on strength properties of concrete made with river sand and dune sand as fine aggregate. Many authors studied the optimal percentage of partial ...
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M Sand in Construction: Best Practices. Source Verification: Always purchase from trusted suppliers.; Gradation Check: Ensure the sand meets IS Code standards.; Washing and Screening: Choose M Sand that has …
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Is river sand better than M-Sand? There is no definitive answer as it depends on specific project requirements. However, M-Sand offers advantages in consistency and quality, while river sand may be more readily available in certain regions.
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Well-graded river sand can help make stronger concrete mixes. Do not contain many impurities like clay or dirt. It contains impurities like clay, silt, and other matters that must be washed and screened before usage. The …
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Type I ordinary Portland cement was used with a specific surface area of 362 m 2 /kg, the properties and oxide compositions of cement were shown in Table 1, Table 2.Both AMF and MS were made from limestone. The XRD pattern of AMF was shown in Fig. 1, and the specific surface area was 353 m 2 /kg. MS had a fineness modulus of 2.93, and its physical …
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This paper takes mixed sand (machine-made sand + river sand) concrete as the research object and analyzes the influence mechanism of different content of CaO expansion agent on the physical and ...
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I have been trying to find River sand, but each place I call tries to sell me concrete sand. Is it the same thing? I asked if it comes from a river and they said no. It's made. What other choices do I have if I can't find River sand? I am in South Western Ontario, Canada.
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Tensile strength growth was limited or decreased after 90 days [9].V. Gokulnath et al., SCC M-sand concrete impact with use of powdered glass and cured for at four different ages with fresh water to improve strength. The comparison was also made for M sand concrete and traditional concrete.
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