The Use of Manufactured Sand in Concrete …
The global consumption of natural sand is very high, due to the extensive use of concrete or mortar. The fine and coarse aggregates generally occupy 60% to 75% concrete volume (70% to 85% by mass) …
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Review on self compacting concrete with manufactured sand
The research and application of self compacting concrete with manufactured sand in recent years are reviewed in the paper, including influence of the content of stone powder, aggregate gradation to self compacting concrete with manufactured, and the problems and the future work are proposed. Export citation and abstract BibTeX RIS. …
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Article Research on Compressive Strength of …
of concrete made with manufactured sand [13–15]. The presence of a certain amount of SP is a significant distinction between manufactured sand and natural sand. Within a specific range, the SP can fill voids, optimize grading, enhance concrete workability, induce crys-
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Research on Compressive Strength of Manufactured Sand Concrete …
Traditional natural river sand is used as a fine aggregate for concrete, but due to the severe environmental situation in recent years, many places have asked for a ban or restriction on the extraction of river sand. This has resulted in an increasing demand for concrete using machine-made sand instead of natural sand. The estimation and …
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Specifying manufactured sands for concrete applications
In Australia, research conducted by Cement Concrete Aggregates Australia (CCAA) has provided greater confidence in the specification of manufactured sands for general applications in Australian Standard AS2758.1 (Aggregates and rock for engineering purposes) and in identifying suitable manufactured sands for use in concrete …
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The physical and chemical impact of manufactured sand as …
1. Introduction. Ultra-High Performance Concrete (UHPC) is one of the most advanced cement-based construction material. It has outstanding mechanical and durability properties, such as compressive strength [2, 3], malleability [4, 5], impact resistance [6], chloride penetration resistance and freezing-thawing resistance [[7], [8], [9]], which has …
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An Investigation into the Use of Manufactured Sand as a …
All the manufactured sands used in this study fall within the New Zealand standard envelope for natural sands unlike their crusher dust counterparts, as observed in Figure 3. This suggests that the grading and shape of the manufactured sands should be suitable for use in concrete applications.
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Green High-Performance Concrete with …
About this book. This book presents the features of manufactured sand (MS) and its application in concrete as the fine aggregate. It first introduces the production and …
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Considering Manufactured Sand
The average sand use is about .75 tons (1.5 tons x .45) per cu. yd. of concrete. It is important to note that even if the sand meets the ASTM specification it needs also to have a Fineness Modulus (FM) of …
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Manufactured Sand in Concrete
Benefits. More readily available and closer to the concrete plants. Can save on transportation costs. Makes use of a locally available material. Man Sand vs. Natural …
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Effects of Fines Content on Durability of High-Strength Manufactured …
Too much fines will inhibit the hydration of cement and adversely affect the durability of concrete. Therefore, the fines content of high-strength manufactured sand concrete should be controlled within 5~15%, and the durability is the best when the fines content is 10%. Keywords: durability, fines content, granite, limestone, manufactured …
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Green High-Performance Concrete with Manufactured Sand
This book presents the features of manufactured sand (MS) and its application in concrete as the fine aggregate. It first introduces the production and technical properties of manufactured sand and demonstrates the properties of concrete, followed by the mix proportioning of concrete with manufactured sand.
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Increasing sustainable aggregate usage in concrete by
The use of manufactured sands, a man-made fine aggregate product from crusher fines, as a partial replacement or replacement of fine aggregate in a concrete mixture has become more common [16], [20], [21]. ... In this study, glass fibre was added to manufactured sand concrete to improve its mechanical properties and determine the …
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The physical and chemical impact of manufactured sand as …
Then, two types of natural sands (0–0.6 mm and 0.6–1.25 mm RS) and two types of manufactured sands (0–0.6 mm and 0.6–1.25 mm MS) were applied here. At last, the workability of UHPC was adjusted by superplasticizer (polycarboxylic-ether based, solid content of 20% and the water-reducing capacity of PCE was greater than 30%).
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Research on carbon emission reduction of manufactured sand concrete
The manufactured sand concrete prepared by replacing cement with fly ash and stone powder has an improvement effect on the compressive strength at different ages, especially the manufactured sand concrete with a 25% replacement rate of fly ash and a 10% replacement rate of stone powder, which has a significant improvement on …
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Durability Phenomenon in Manufactured Sand Concrete: …
Despite several studies focusing on producing sustainable concrete with nonconventional materials, there are short-term and long-term lapses in behavior of some of the concretes. This study, with a main focus on durability performance, explores strength and behavior of manufactured sand concrete containing alcofine and zinc oxide in …
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Research on carbon emission reduction of manufactured sand concrete
The fine aggregate is manufactured sand produced by a mining company in Gansu, China. The manufactured sand adopts dry sand in the production process, so the aggregate is accompanied by a large amount of fine powder. The performance indicators are shown in Table 1. The cement used in the test is P•O 42.5 Portland cement.
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The use of treated desert sand in sustainable concrete: A …
1. Introduction. Rapid urbanization and the construction of new and improved infrastructure have necessitated using huge amounts of concrete. China and India produce approximately 11.5 billion tons of concrete annually [1].Globally, over 30 billion tons of river sand are consumed each year, posing environmental threats due to the depletion of raw …
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The way forward to sustain environmental quality through
The necessity for the use of manufactured sand increases with the river sand supply dropping by over 80%. In India, Tamil Nadu occupies the second longest sandy beach area covering about 1.076 km (670 miles). ... Sreenivasa G (2012) Use of manufactured sand in concrete and construction an alternate to river sand. New …
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Effect of polypropylene fiber on frost resistance and …
Effect of polypropylene fiber on frost resistance and carbonation resistance of manufactured sand concrete. Author links open overlay panel Juntao Kang a b, Xingxiang Chen a b, Zechuan Yu a. Show more ... [12], in which the use of manufactured sand(MS) to prepare concrete instead of NS has gradually become an important branch of green ...
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Manufactured Sand
Manufactured sand (M-Sand) is artificial sand produced from crushing hard stones into small sand-sized angular shaped particles, washed and finely graded to be used as construction aggregate. It is an …
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An Investigation into the Use of Manufactured Sand as …
Keywords: manufactured sand; concrete; artificial neural networks 1. Introduction In many countries sources of natural sand for use as an aggregate in construction are becoming scarce as sand pits are exhausted and environmental legislation prevents dredging [1–3]. This is
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Mix Design of Concrete with Manufactured Sand
5.5.1 Mix Design Principle of High-Performance Concrete with Manufactured Sand Based on Aggregate Shape. From the point of view of workability, the slurry in concrete is divided into two parts, one is used to fill the accumulated voids between aggregates, and the other is used to cover the aggregate surface to form a lubricating …
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Considering Manufactured Sand
Manufactured Concrete Sand Manufactured sand needs to be capable of replacing natural sand in concrete without any negative side effects. Two of the most common negative complaints are too high of FM …
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Use of manufactured sands in Australia
The reduced availability of natural sands, particularly along the east coast of Australia, and the need to better utilise sand-size material generated in the aggregate crushing process, has combined to encourage the development of manufactured sand. In 2007, Cement Concrete & Aggregates Australia (CCAA) completed a major research …
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Use of Manufactured Sands for Concrete Pavement
aggregates could be used in concrete pavements without causing workability or skid related issues. To improve the workability of concrete made with manufactured fine …
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Pumpability of Manufactured Sand Self-compacting Concrete
By the addition of superplasticizer and air entraining agent, manufactured sand self-compacting concrete (MS SCC) with slump flow varying from 500 to 700 mm and air content varying from 2.0% to 9.0% were prepared and the pumpability of MS SCC was studied by a sliding pipe rheometer (Sliper). According to the Kaplan's model, the initial …
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Effect of Stone Powder Content on Mechanical Properties of Manufactured …
The stone powder content of manufactured sand is generally as high as 10–20%. Compared with natural sand, manufactured sand has the characteristics of irregular grain shape, unreasonable gradation, and high stone powder content (Wang et al. 2018; Zheng et al. 2021), which limits the popularization and application of …
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Influence of manufactured sand's characteristics on its concrete …
Abstract. Manufactured sand (MS) is widely considered as an alternative of the river sand (RS) recently, and to clarify the influence significance and influence mechanism of MS characteristic parameters on its concrete performance is essential to its scientific application. This paper presented series of experimental studies on the …
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Increasing sustainable aggregate usage in concrete by …
1. Introduction. The use of manufactured sands, a man-made fine aggregate product from crusher fines, as a partial replacement or replacement of fine aggregate in a concrete mixture has become more common [16], [20], [21].Manufactured sands are essentially a waste product from producing coarse aggregate and so it is …
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