M-sand, or manufactured sand, is a high-quality alternative to river sand produced from crushed granite, ensuring consistent grading and free from impurities such as clay and silt. Its superior quality adheres to international standards and is backed by scientific testing, making it increasingly favored by builders due to its better strength properties. As natural sand resources diminish globally, m-sand is becoming essential in the construction industry.

1. M-SandManufactured Sand
Presented by:- A.RAVINDRA KUMAR RAO, MD.RAFI, K.UDAY KIRAN (B.TECH (C.E))
Guided by:- Mr.GANESH S.S.Y
M.E
Madanapalle Institute Of Technology & Science

2. What is M-Sand?
M-Sand is manufactured sand
•M-sand is crushed aggregates produced from hard
granite stone which is cubically shaped with grounded
edges, washed and graded with consistency to be used
as a substitute of river sand.

3. Quality Assurance:-
M-Sand is superior quality manufactured sand with international standards
Vasthu Shastra Says Building material must be free from traces of human body or animal. M-
sand is free of such material and is produced by crushing hard granite stone when compared to
river sand that is produced naturally from weathered rock.
M-sand adheres to the highest standards and the quality tests are done by the College
of Engineering, Trivandrum.

4. MANUFACTURE OF M-SAND

5. M-Sand is manufactured sand, obtained from specific hard
rock (granite) using the state-of-the-art International
technology. Its numerous advantages over river sand have
made it a favorite and a "Must-to-Use" with quality conscious
builders.
Rock blasting & Loading

6. M-Sand is cubical in shape and is manufactured
using international technology like High Carbon
steel hit rock and then ROCK ON ROCK process
which is synonymous to that of natural process
undergoing in river sand information.
Poabs have procured the world's best and state
of the art equipments and installed them at
various safe stations in Kerala complying with
every scientific parameters set for producing
Manufactured Sand(M-Sand).

7. Modern and imported machines
VSI(Vertical Shaft Impact) are used by
Poabs to produce M-Sand, ensuring to IS
383 ZONEII. For quality control, Poabs has
engaged in a scientific tie-up with the RND
lab and department heads of Trivandrum
Engineering College who rigorously and
constantly monitor our production at
every stage. This exceptional kind of
technical support always assures us to
maintain consistency in quality as well as
to upgrade our technology from time to
time.
Vertical Shaft Impact (VSI) Crushing
Horizontal Shaft Impact (HSI) Crushing

8. Washing 7 Grading
M-Sand - ready to transport

9. The particle shape of the aggregates is very important for
making concretes. It is a well known fact that the sand having
cubical particles with grounded edges gives higher tensile
strength and compression strength to the concrete. The grains
should be of durable material and the size of the grains must
be such that it should give minimum voids. The presence of
clay and slit is avoided since it retards the setting of the cement
and making mortar. Experiments shown that considerable
variations in strength of mortar may occur owing to form and
variety of the sand particle. The strength of mortar may differ
by about 50% of average. It is not possible in river sand that all
particles should be of higher strength. This can be achieved
only by making sand with the help of machines. In machine-
made sand, we can use the raw material of higher strength.

10. Why manufactured sand?
•Globally, natural sand and gravel extraction is becoming less of an
option. New pit location opportunities are fewer, further from the
marketplace and harder to secure. In the past, natural sand and gravel
extraction has been the backbone of the aggregate industry; this is
increasingly less the case. Operators now wish to produce high-quality
manufactured sand.

11. CRUSHER DUST
M-
SAN
D
Comparison between M-Sand and Crusher Dust
SL. NO. M-SAND CRUSH
ER
DUST
01. Colour Grey Grey
02. Particle Shape Cubically Shaped Flaky
03. Product Manufactured as per IS, BS, ASTM Standards Elongat
ed
(Shapel
ess)
a) It is
fracture
d dust
of jaw
crusher

12. Texture Of M-sand And Natural River Sand Particles
12

13. Comparison of River Sand Vs M-Sand
SIEVE
ANALYSIS
River Sand Vs
M-Sand
IS SIEVE RIVER SAND
% Age Passing
M-SAND
% Age Passing
% Age passing
for single sized
aggregates of
Normal Sand
(IS 383 - 1970)
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 04.00 21.00 08 to 30
Comparison of Impurities - River Sand Vs M-Sand
RIVER SAND M-SAND
Marine Products 2 - 4 % Nil
Oversized Materials 6 - 10 % Nil
Clay & Silt 5 - 20 % Nil

14. Conclusion
14
Manufactured sand is more superior than river sand as fine
aggregate in mortars and concrete.

15. THANK YOU FOR ALL