Nigeria is rich is solid mineral resources, such as: Kaolin, gypsum, mica, clay, tantalite, iron ore, gemstone, silica sand.
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Recycling concrete &building rubble is not only able to bring profit to investors, but also good for environment protection.
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By absorbing the advanced technology from the world, we researched and designed PF series impact crusher.…
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Base on the plentiful experience of producing and marketing of impact crusher, Sofol R&D institution…
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Adopting technology from the world, PY Series spring cone crusher has an excellent performance in secondary…
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The vibrating screen is a kind of sieving equipment of international advanced level, developed by our…
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Sofol VSI Series vertical shaft impact crusher is designed by reputed German expert of Sofol and every…
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Silicon Oxides. Aluminium Alloy. Calcium Oxides. Magnesium. Potassium. Magnesium. Titanium. Sulfur. These are also found at a smaller degree. Although used it as a mineral aggregate in asphalt, fly ash is graded either as Class C or Class F ash on the basis of its chemical composition.. Class C ash is commonly extracted from sub …
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Advantages and Disadvantages of Concrete: Concrete is a structural material that hardens due to the accumulation of aggregate particles mixed with water and sand, cement, and other similar materials.It is an essential vital element that is required for the construction of buildings, houses, or any infrastructure.
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Types of Crushed Sand: M Sand for Concreting: Screening size or granule thickness is 150 microns — 4.75 mm. It complies with IS code 383: 1970. M Sand for Plastering: This sand is often used in ...
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In the present study manufactured sand with varying proportions from 0 to 40 % by its weight are mixed with concrete materials as a partial replacement with fine aggregates & analysed for its ...
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The M sand is amanufactured sand and it is better for concrete and plasteringworks. M Sand Advantages and Disadvantages. M Sand Advantages: 1; M Sand is cheaper than natural sand because it is manufactured in factories. 2; M Sand is sold in bulk quantities so it is affordable for construction projects. 3
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A REVIEW ON FIBER REINFORCED CONCRETE. Grija.S, Shanthini.D, Abinaya.S. Assistant Professor, Department of Civil Engineering, Sri Ramakrishna Institute of Technology, Coimbatore – 641 010, Tamil ...
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M-sand specific gravity is approximate 2.73 (Depend on parent rock.) River sand specific gravity is approximate 2.65 (Depend on rocks in the catchment area.) 8: M-sand dry density of 1.75 kg/m3: Naturally Sand dry density of 1.44 kg/m3: 9: M-sand is manufactured to conform to zone II. this sand mostly conforms to zone II and zone III: 10
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0.40 m x 0.20 m x 0.30 m : normal hollow blocks size in construction, often referred to as the standard hollow block size.; 0.40 m x 0.20 m x 0.20 m : hollow tiles.; 0.40 m x 0.20 m x 0.10 m: the absorption of water in hollow solid blocks for partitioning will be less than 10%.; In order to include blocks in the building, the total length and height of …
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Incorporating waste glass in concrete as a portland cement replacement does more than help the environment by reducing the amount of CO2 emission. It also reduces the amount of waste glass disposed in …
DetailsIn this paper, experimental studies on compressive strength development of concrete with manufactured sand (CMS) were carried out. The conventional river sand was replaced with 0%, 30%, 50%, 70% ...
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Concrete stands out because of its versatility to take on diverse shapes and forms, ranging from the simple slabs, beams, and columns to complex arches and shells. Concrete is incredibly versatile, using common locally sourced materials (sand, gravel, and water) while limiting the need for other expensive elements.
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Visnu et al. (Visnu, Karthikeyan, and Arulraj 2015) carried out an experimental investigation on high-performance concrete with partial replacements of river sand by M Sand with 40%, 50%, and 60% ...
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Sand accounts for approximately 35% of the volume of concrete. Manufactured sand is a by-product and it is a usable substitute for river sand. The manufactured sand obtained from hard rocks by crushing plant. It is also known as M-Sand, Crushed stone sand, Quarry dust, Rock sand, Crushed dust, and other names. …
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Concrete blocks offer several advantages such as strength, suitability for wet and hurricane-prone areas, fire-resistance, eco-friendliness, and soundproofing. However, there are also disadvantages to using concrete blocks, such as higher costs, dull texture, regional preferences, potential water seepage, and limited curb appeal.
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Concrete has some disadvantages too along the advantages stated above. Concrete has a relatively low tensile strength (compared to other building materials), low ductility, low strength-to …
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The study focuses on using excavated marine sand as a fine aggregate to develop enduring and resilient concrete. Partial replacement of river sand and manufactured sand (MS) with dredged sea sand ...
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The strength of various concrete mix types is designated as M5, M10, M15, or M20, where M stands for the mix and 5, 10, 15, or 20 refers to the strength in kN/m². As an illustration, the mix ratio for the M15 grade is …
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Merits of Carbon Concrete. Strength and Durability: One of the primary merits of carbon concrete is its exceptional strength and durability. By reinforcing concrete with carbon fibers, it becomes ...
DetailsWhen m sand is used in the concrete, the permeability of the concrete is very poor as compared to river sand. Water absorption. The water absorption of river sand is 1.5-3%. The water absorption of m sand is 2-4%. Presence of silt and clay. River sand consists of clay and silt materials. M sand does not contain clay and slit materials.
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The cement process is sole reason why the concrete industry makes up 8% of overall global emissions and 12% of emissions in New Jersey. Global CO2 emissions by category. Cement is made by firing limestone, clay, and other materials in a kiln. CO2 is emitted from the energy used to fire the material, and the chemical reaction produced …
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Fine aggregates used in SCC can be either natural aggregates or uniformly graded manufactured aggregates (M- Sand). Fine aggregates with particle sizes less than 0.125mm are commonly used. 3. Water. The water quality is the same as in reinforced concrete and prestressed concrete construction.
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In contrast, crushed sand provides an eco-friendly alternative, minimizing environmental harm. Versatile Construction Usage: Crushed sand finds application in various construction tasks, excluding plaster, waterproofing, and stone bedding. A recommended mix for hardscape work involves a blend of 50% M sand and 50% river sand for optimal results.
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However, for producing ready-mix concrete, the mixer can well mix in about 15 to 30 secs. Concrete mixer having one cubic meter capacity high-speed Pan Mixer takes only about 2 minutes for batching and mixing. The RMC batching plant takes about 12 minutes to load a transit mixer of 6 m3 capacity.
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This is due to low density of ceramic wastes compared to natural fine aggregate and also increment in porosity induced by ceramic wastes. Mohammad et al [8] reported that concrete with 10% RPET as sand replacement of 0–30% and 50% resulted in on par density that is 2340 kg/m 3 of conventional concrete 2400 kg/m 3. It may be due …
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Continuous and Consistent Testing: It is required to test regularly to make sure the consistency of the manufactured sand.; Presence of Impurities: Impurities such as coal, bones, shells, mica, etc could be in the M-sand.Decaying of these materials with the time could reduce the strength of the concrete. Environmental Impact: Production of the …
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For typical structural construction used, concrete is formed with gravel-sized aggregates, but for finer work and smoother finished surfaces, finer sands can be used as the aggregate. The typical mixture used in driveway slabs, sidewalks, and other paving surfaces usually uses a mixture of aggregate ranging from gravel to sand-sized …
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by the concrete with river sand, M-Sand and Quarry Dust Sand. Fig.4.1 True Slump Fig.4.2 Shear Slump Fig.4.3 Collapse Slump 4.2 COMPRESSIVE STRENGTH At the beginning, i.e. at 7 days the concrete's strength made of manufactured sand and quarry sand is less than that of common sand. But as the days of curing
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The advantages of fibre reinforced concrete and fiber reinforced concrete advantages and disadvantages are described below.. Fiber-reinforced concrete used in bridges. It helps to prevent catastrophic failures. While using Fiber-reinforced concrete in civil structures, maximum corrosion can be avoided.Fiber-reinforced concrete is a better …
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When the concrete mix (1:1.82:2.96) of grade M20 was tested for replacing the river sand with M-sand, the concrete mix was found to have better strength and durability when it was compared with river sand. ... Disadvantages of M-sand: Shrinkage is more; Comparatively high-water absorption;
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A brief review has been carried out to identify the alternatives suggested by researchers, merits and demerits of substitutions, availability of standards, and previous studies on the effects of replacing river sand with alternatives in concrete and mortar. Manufactured sand (M Sand), offshore sand, sea sand, quarry dust, and demolition …
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Pervious concrete allows the water to flow through it. The permeability of concrete depends upon the percentage of voids in the concrete, and the size of voids. Typically, 15-25% voids are achieved in hardened permeable concrete. The flow rates of pervious concrete are approximately 480 in./hr (200 L/m2/min).
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The ratio for PCC concrete is 1:5:10, which represents 1 part cement, 5 parts sand, and 10 parts aggregate. To make a level bed for the foundation, PCC is used. Proportioning Plain Cement Concrete: …
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One significant advantage of M sand is its controlled gradation, specifically in the Zone-II range. This makes M sand highly suitable for the production of high-quality concrete. Its superior cohesiveness and compressive strength contribute to the durability and performance of concrete structures. Though M sand offers commendable qualities, …
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Excessive fine can affect the strength and workability of concrete. Manufactured Sand Price. M sand price is around 800 to 1000 rs. per tonne in India. Expert Opinion. It is a proven fact that concrete manufactured with M Sand performs better than concrete with natural sand as the property of crushed sand is better than that of natural sand.
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Bendable Concrete Mix Ratio Design Processing: PVA fibre at 2% was the initial mix proportion, and the superplasticizer dose was 30 ml per slab mould (700x150x60 mm), 10 ml per cube mould (70.6×70.6×70.6 mm), and 0.5 ml per slab mould (700x150x30 mm). By using this ratio, workability could be attained. Concrete is mixed in a 1:2 (cement: sand ...
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