The document discusses quality control and materials testing procedures. It describes how quality control ensures products meet requirements through inspection and testing to find defects. Materials testing examines how materials withstand stresses and forces they may experience. It then provides details on specific tests for cement, aggregates, and reinforcing steel bars to evaluate their physical and mechanical properties and ensure quality standards are met. These include tests for fineness, setting time, strength, hardness, particle size distribution, density, and tensile strength.

1. Quality Control &
Material Testing

2. • (QC) is a procedure or set of procedures
intended to ensure that a manufactured product
or performed service adheres to a defined set
of quality criteria or meets the requirements of
the client or customer.
• Controls include product inspection
emphasizes testing of products to uncover defects
and reporting to management who make the
decision to allow or deny product release
Quality Control

3. • The basic goal of this process is to ensure that
the products or services that are provided meet
specific requirements and characteristics, such
as being dependable, satisfactory, safe and
fiscally sound
Objective

4. • Materials testing is the process of pulling bending,
twisting, turning, hitting, and squeezing materials
or components to make sure they withstand the
intense stresses, strains and impact forces they
are likely to experience in use and application. In
other words, materials’ testing examines the
overall strength, toughness, flexibility, suitability
and fitness for purpose.
Materials Testing

5. Cement Test

6. tests on cements are
carried to know the quality
of cement supplied at site.
It gives some idea about
cement quality based on
color, touch and feel and
other tests.
Cement Test

7. Physical Test
Fineness Test
Initial setting time and Final setting time
Soundness test
Consistency test
Compressive strength
Chemical Analysis
SiO2, Al2O3, Fe2O3, CaO, and MgO
Loss on Ignition
Insoluble Residue
Sulphur Trioxide
Cement Test

8. • Fineness Test
is measured by
sieving it on standard
sieve(90µm IS sieve ) to
determine the proportion of
cement whose grain size is
larger than specified mesh
size
Physical Test

9. • Initial Setting Time
Place the test block
under the rod bearing the
needle. Lower the needle
gently in order to make
contact with the surface
of the cement paste and
release quickly, allowing it
to penetrate the test
block
Physical Test

10. • Final Setting Time
The period
elapsing between the
time, water is added to
the cement and the time,
the needle makes an
impression on the surface
of the test block, while the
attachment fails to do so.
Physical Test

11. Soundness Test
a specimen of
hardened cement paste is
boiled for a fixed time so
that any tendency to
expand is speeded up and
can be detected. Soundness
means the ability to resist
volume expansion.
Le-Chatelier
Physical Test

12. Consistency
The basic aim is to
find out the water content
required to produce a
cement paste of standard
consistency
Le-Chatelier
Physical Test

13. Compressive Strength
of cement is determined by
compressive strength test on
mortar cubes compacted by means
of a standard vibration machine.
Standard sand (IS:650) is used for
the preparation of cement mortar.
The specimen is in the form of
cubes 70.6mm*70.6mm*70.6mm.
Physical Test

14. Loss on ignition is calculated by
heating up a cement sample to 900
– 1000°C (1650 – 1830°F) until a
constant weight is obtained. The
weight loss of the sample due to
heating is then determined. A high
loss on ignition can indicate
rehydration and carbonation, which
may be caused by improper and
prolonged storage or adulteration
during transport or transfer.
Chemical Analysis

15. Cement #1

16. Cement #2

17. Cement #3

18. Cement #4

19. Cement #5

20. Pipe Culvert #1

21. Pipe Culvert #2

22. Pipe Culvert #3

23. Lined Canal Cover

24. Retaining Wall

25. Aggregates Test

26. This test method is used to determine
the grading of aggregates extracted from
bituminous mixtures. The results are used to
determine compliance of the particle size
distribution with applicable specifications
requirements, and to provide necessary data
for control of the production of various
aggregates to be used in bituminous
mixtures.
Aggregates Test

27. Aggregates Test
Specific Gravity
Absorption
Unit Weight
Fineness Modulus
Soundness
 Organic Impurities
 Abrasion Loss
 % Wash Loss
 Mortar Strength
 Clay Lumps
Physical Properties
Mechanical Analysis
Sieve Analysis

28. Physical Properties
Specific Gravity
- the coarse aggregate specific
gravity test is used to calculate
the specific gravity of a coarse
aggregate sample by
determining the ratio of the
weight of a given volume of
aggregate to the weight of an
equal volume of water.
Absorption
- is the increase in mass due to
water in the pores of the
material

29. Coarse and Fine Aggregates
Specific Gravity and Absorption

30. Physical Properties
Unit Weight
- The bulk unit weight of
aggregate is needed for the
proportioning of portland
cement concrete mixtures.
 Abrasion
Aggregates blended to a fixed
size distribution are placed in
a large steel drum with
standard sized steel balls that
act as an abrasive charge.
The drum is rotated, typically
for 500 revolutions

31. Abrasion loss
Coarse Aggregates
Dry Unit Mass

32. Sieve Analysis
In this we use different sieves as
standardized by the IS code and then
pass aggregates through them and thus
collect different sized particles left over
different sieves.
The apparatus used are –
sizes – 80mm, 63mm, 50mm,
40mm,31.5mm, 25mm, 20mm, 16mm,
12.5mm, 10mm, 6.3mm,4.75mm,
3.35mm, 2.36mm, 1.18mm, 600µm,
300µm, 150µm and 75µm.
Mechanical Analysis

33. Coarse Aggregates
Sieve Analysis

34. Fine Aggregates
Dry Unit Mass

35. Fine Aggregates

36. Test on Reinforcing Steel Bars

37. Test on Reinforcing Steel Bars
I Physical Properties
 Length of Test Specimen
 Weight of Test Specimen
 Nominal Diameter
 Nominal Cross Sectional Area
 Unit Mass of Specimen
 Variation in Mass
 DEFORMATION
 Ave. Spacing of Lugs
 Ave. Height of Lugs
 Sum Gap of Lugs

38. Test on Reinforcing Steel Bars
II Mechanical Properties
 Yield Point
 Tensile Strength
 TS/ YS Ratio
 Elongation
 Cold blend Test
 Diameter of Pin Used
 Bending Angle
 Description of fracture
`

39. RSB 16 mm∅

40. RSB 20 mm∅

41. RSB 25 mm∅

42. RSB 32 mm∅

43. RSB 36 mm∅

44. Status of Test