The curung qnd its test ppt

1. • W H A T I S C U R I N G I N B U I L D I N G
C O N S T R U C T I O N ?
• W H Y I S C U R I N G U S E D ?
• A D V A N T A G E S O F C U R I N G
• D I S A D V A N T A G E S O F C U R I N G
• S T E P S O F C U R I N G
• W H A T I S C U R I N G T E S T S ?
• C U R I N G T E S T S F O R C O N C R E T E
CURING AND ITS
TESTS
P R A N A L I . B
U B A I D . S
M A N A L I . D

2. WHAT IS CURING IN BUILDING
CONSTRUCTION?
 Curing is the process of maintaining satisfactory
temperature and moisture conditions in concrete
long enough for hydration to develop the desired
concrete properties.
 The potential strength and durability of concrete will
be fully developed only if concrete is properly cured.

3. WHY IS CURING USED?
 This is because strength tests are influenced
primarily by the concrete properties near the
midheight of a core or cylinder.
 Curing has a greater effect on the strength of the
concrete at the cured-surface than at the depth, and
in many core tests, this top surface is cut off and
discarded before testing.

4. ADVANTAGES OF CURING…..
 Curing plays an important role on strength
development and durability of concrete.
 Curing takes place immediately after concrete placing
and finishing, and involves maintenance of desired
moisture and temperature conditions, both at depth
and near the surface, for extended periods of time.
 Properly cured concrete has an adequate amount of
moisture for continued hydration and development of
strength, volume stability, resistance to freezing and
thawing, and abrasion and scaling resistance.

5. DISADVANTAGES OF CURING…..
 Curing concrete is a crucial step in its formation, as it helps to maintain
moisture and temperature conditions conducive to the hydration process.
However, there are some potential disadvantages to not properly curing
concrete:
 Decreased strength: Inadequate curing can lead to reduced strength and
durability of the concrete, which can affect its long-term performance.
 Cracking: Improper curing can result in cracks in the concrete, which can
compromise its structural integrity.
 Surface defects: Without proper curing, concrete can develop surface
defects such as scaling, dusting, or discoloration.
 Permeability: Inadequate curing can increase the permeability of the
concrete, making it more susceptible to water and chemical penetration.To
mitigate these disadvantages, it's important to follow recommended curing
practices, such as using curing compounds, moist curing, or other
appropriate methods to ensure the concrete reaches its full potential
strength and durability.

6. STEPS OF CURING…..
 The three most common methods of curing are by air, fire, and flue. A fourth method, sun
curing, is practiced with aromatic types and to a limited extent with air-cured types.
 The steps of curing can vary depending on the context. Here are general steps for concrete
curing:
 1. *Initial Curing:* Begin curing as soon as the concrete is set enoug to resist marring. This
usually starts immediately after finishing.
 2. *Keep Moisture:* Maintain adequate moisture to prevent the concrete from drying out
too quickly. This can involve covering the concrete with wet burlap, applying wet curing
blankets, or using curing compounds.
 3. *Temperature Control:* Ensure proper temperature conditions. Concrete curing is often
more effective at higher temperatures, but extreme heat or cold can have adverse effects.
 4. *Duration:* Curing should continue for an appropriate duration. Typically, a minimum of
seven days is recommended for most concrete applications, but this can vary based on
factors like mix design and environmental conditions.
 5. *Final Curing:* After the initial curing period, continue to protect the concrete from
drying out too quickly. Gradually reduce the frequency of moisture application to allow the
concrete to gain strength.

7. WHAT IS CURING TEST?
 Accelerated Curing Method is used to get early high
compressive strength in concrete.
 This method is also used to find out 28 days
compressive strength of concrete in 28 hours. (As
per IS 9013-1978-Method of making, curing and
determining compressive strength of accelerated
cured concrete test specimens).

8. CURING TEST FOR CONCRETE…..
 Curing tests in concrete typically involve assessing
the moisture content, temperature, and duration of
the curing process.
 This ensures proper hydration and strength
development.
 Common tests include the use of moisture meters,
temperature monitoring, and compressive strength
tests on cured specimens.