What Is M Sand?
M sand, also known as manufactured sand, is a type of sand that is produced by crushing hard granite rocks into fine particles.
The particles of M sand are cubical in shape and free from impurities like silt, clay, and organic matter. It is an alternative to river sand, which is naturally occurring sand extracted from river beds.
M sand is used in construction as a substitute for river sand, which is becoming scarce due to environmental concerns and regulations on sand mining.
M sand is considered a more sustainable and eco-friendly option as it is produced by crushing rocks and does not require the dredging of river beds, which can cause environmental damage.
M sand is also durable and suitable for construction purposes as it is free from impurities and has a consistent quality.
M Sand Meaning
M Sand Mining is A fine aggregate that is produced by crushing stone, gravel, or slag.
Sand is an important ingredient in making concrete and mortar. The majority of counties in the world now promote the use of M-Sand (Manufactured Sand).
manufactured sand means sand that is produced by crushing quarry and rocks stones to desired sizes.
Why M Sand?
We know that river sand is mostly used for construction purposes all around the world, majorly for concrete making, cement mortar, and concrete blocks.
Here are some reasons why M sand is being preferred over river sand:
Environmental concerns: The dredging of river beds to extract sand can cause significant environmental damage, including erosion of river banks and loss of aquatic habitats. M sand, on the other hand, is produced by crushing hard granite rocks and does not require the dredging of river beds.
Consistent quality: M sand is free from impurities like silt, clay, and organic matter, which makes it more suitable for construction purposes.
The particles of M sand are also cubical in shape, which enhances its durability and strength. River sand, on the other hand, can have inconsistent quality, and its availability can be affected by seasonal variations and mining regulations.
Cost-effective: M sand is often more cost-effective than river sand as it is produced by crushing hard granite rocks, which are abundant in many parts of the world.
In contrast, river sand has to be extracted from river beds, which can be an expensive and time-consuming process.
Suitable for all types of construction: M sand is suitable for all types of construction, including buildings, bridges, and roads.
Its consistent quality and durability make it ideal for use in high-stress applications such as concrete and masonry work.
Some of the Alternatives to River Sand
- Manufactured Sand
- Fly Ash/ Bottom Ash/Pond Ash
- Copper Slag – Filtered Sand
- Sea Sand, Slag Sand
- Crushed Waste Glass
- Recycled Aggregate/C&D Waste Aggregate etc.
The demand for alternative materials of river sand for making concrete is increasing day by day as river sand cannot meet the rising demand of the construction sector.
It is fact that the river sand takes millions of years to form. Because of limited sources of natural sand, the cost of River sand has skyrocketed and its consistent supply cannot be guaranteed. Under this condition the use of manufactured sand becomes inevitable.
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Issues and General Requirements of M Sand
The Civil engineers, Architects, Builders, and Contractors agree that the river sand, which is available today, is deficient in many respects.
It does contain very high silt fine particles (as in the case of Filter sand).
Sometimes the presence of other impurities like coal, bones, shells, mica, silt, etc makes M–sand unfit for use in cement concrete, and due to weathering effect, this material decay which results in shortening the life of the concrete.
Nowadays, the government has implemented restrictions on river sand exploration and uses. Sand Mining from the river bed has a deep impact on the environment, as the water table goes deeper & ultimately dry.
General Requirements Ideal Sand
1. M-Sand particles should have a higher crushing value.
2. The surface texture of M Sand particles should be smooth and even.
3. The Particles should have a rounded shape.
4. The Percentage of fines below 600 microns in the sand should not be less than 3.
5. M sand should not contain any organic impurities.
6. Silt contained in M Sand should not be more than 2%, for crushed sand.
7. The number of fines below 75 microns shall not exceed 15% in M–Sand.
Difference Between M Sand Vs River Sand
The main difference between M sand and river sand is in their origin and composition. M sand is produced from crushing hard granite rocks, whereas river sand is naturally available and extracted from river beds.
M sand particles are cubical in shape, while river sand particles are rounded in shape due to the natural action of water and erosion.
|River Sand||M Sand|
|Excessive and illegal quarrying of Natural sand at river beds, resulting in soil erosion and danger to the reservoir structures||100% replacement to River sand and & It is One of |
the hi-product of aggregates.
|Scarcity due to the ban on quarrying activities near the river bed by the Govt. to prevent depletion of natural resource||No scarcity. as the Govt. is encouraging the business to garner tapped revenue.|
|No control over silt content||Govt. has identified the places and accorded the |
the sanction for carrying out quarrying and crushing activities without compromising on any environmental issues
|Very long-distance transportation resulted in volume toss on the quantity of sand received at the site.||Sand washing machine to ensure 0% silt content, |
benefiting best-economized concrete with possibilities of reduction in cement content
|Adulteration with filter sand (Unfit to be used in concrete)||Uninterrupted supply even during the rainy season,|
which in turn facilitates the timely completion of the project.
|No guarantee of gradation||No adulteration|
|Huge inventory cost during monsoon for non-availability||World-class Machine is employed to get the Top Quality |
Graded aggregates meeting both BIS and Customer requirements, the Consistency on the required gradation is guaranteed.
|Fear of not getting sand, if rejected for quality||No fear, the quality is the main focus.|
|Additional manpower for removal of pebbles & boulders while Loading into the belching plant to avoid pump choke ups||No additional manpower is required to remove boulders or pebbles, which is again cost saving|
|No mechanism for pricing ethical||Transparency in pricing as the manufacturing|
the facility is legal and
|IS Sieve||River Sand % Age Passing||M-Sand % Age Passing|| % Age passing for single sized |
aggregates of Normal Sand
115 383 – 19701 Zone II
|4.75 mm||99.25||99.75||90 to 100|
|2.36 mm||93.50||78.25||75 to 100|
|1.18 mm||48.00||52.00||55 to 90|
|600 Microns||21.00||38.00||35 to 59|
|300 Microns||4.00||21.00||08 to 30|
|150 Microns||0.05||5.00||0 to 10|
|Comparison of Impurities – River Said Vs M-Sand|
|Marine Products.||2 – 4 %||Nil|
|Oversized Materials||6 – 10%||Nil|
|Clay & Silt||5 – 20%||Nil|
The Advantages of M Sand
1. More Cost-effective than Natural Sand
M–Sand manufacturing plant can be set up near the area of consumption, bringing down the cost of transportation and providing an assurance of consistent supply.
2. Compliant With the New European Standards
M-Sand can be used as aggregates in screed and concrete mixes, as per EN13139. As it can be utilized for blended mixture with natural sand.
3. Less Disruptive to the Environment
since the raw material for manufacturing M–sand is away from cities it is less environmental effect. Also, the use of sand can save natural river bed conditions, which is essential for any river.
4. Lesser Impurities and Good Working Properties
It is free of silt and clay particles and has denser particle packing than natural sand. M–sand has better tests like higher flexural strength, better abrasion resistance, higher unit weight, and lower permeability.
Disadvantages of Manufactured Sand
1. Workability Issues
M–Sand is come up with a coarse classification and angular texture than natural sand, which is smooth and rounded due to natural gradation. To overcome this we have added more amount of cement to achieve the expected workability, leading to increased costs.
2. Larger Proportion of Micro Fines
M–Sand contains a large number of fine particles, this is due to its manufacturing process. The 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.
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.
M-Sand is environmentally friendly as it replaces natural sand. The cost of concrete made up of M-Sand is less than concrete made with natural sand.
Also, Govt. has to encourage the use of M-Sand to save river natural bed strata.
What Is P Sand?
P Sand Means Plastering Sand. It is manufactured with a granule size of 0 – 2.36 mm which is suitable for all types of plastering requirements and It can be used for various purposes like Independent Houses, Apartments, and other Residential & Commercial Projects.
M Sand Manufacturing Process
M Sand is manufactured from hard granite stone by machine crushing process. The crushed stone materials have a cubical shape with grounded edges, washed and graded as a construction material. Manufactured Sand has a granule size of 0 – 2.36 mm.
M Sand Vs River Sand
M Sand has a higher Fineness Modules Index compared to natural river sand, which gives good workability for concrete.
M sand is free from silt and clay particles which offer better abrasion resistance, higher unit weight, and lower permeability.
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