AIM: -
compression strength of brick
OBJECT: -
The specimen brick is immersed in water for 24 hours. The frog of the Compressive
Strength
APPARATUS:
Bricks,
Oven
Venire Caliper,
Scale, Etc.
FORMULA: -
Max. Load at failure
Compressive Strength = -----------------------------
Loaded Area of brick
THEORY: -
Bricks are used in construction of either load bearing walls or in portion walls
in case of frame structure. In bad bearing walls total weight from slab and upper
floor comes directly through brick and then it is transverse to the foundation.
In case the bricks are loaded with compressive nature of force on other hand in
case of frame structure bricks are used only for construction of portion walls,
layers comes directly on the lower layers or wall. In this case bricks are
loaded with compressive nature of force. Hence for safely measures before using
the bricks in actual practice
they have to be tested in laboratory for their compressive strength.
PROCEDURE: -
1. Select some brick with uniform shape and size.
2. Measure its all dimensions. (LXBXH)
3. Now fill the frog of the brick with fine sand. And
4. Place the brick on the lower platform of compression testing machine and
lower the spindle till the upper motion of ram is offered by a specimen the oil
pressure start increasing the pointer engineering start
returning to zero leaving the drug pointer that is maximum reading which
can be noted down.
OBSERVATION
TABLE
S.NO
|
L X B X H
|
AREA
(LXB)
CM2
|
LOAD(N)
(P)
|
COMPRESSIVE STRENGTH
P/A(N/MM2)
|
AVERAGE COMPRESSIVE STRENGTH
|
CALCULATION:- -
Max. Load at failure
Compressive Strength =
-----------------------------
Loaded Area of brick
RESULT : -
The average compressive strength of new brick sample is found to be ……….
Kg/sq.cm.
