Theory
Load carrying capacity of tiles
with the direction of load. The compressive strength is greater than loaded
along the grains loaded across the grain.
Objectives
1. To
observed behavior of sample.
2. At
tiles under gradually compressive force.
3. Calculate
the compressive strength draw the sketch and compress machine.
Apparatus
1. Specimen
of tiles
2. Compressive
machine
Application
Tiles are used for flooring
purpose in bath-room, w/c for decoration in kitchen.
Procedure
1. The
specimen of tiles is placed between the compressive testing machine.
2. Take a
sample of tiles and measure the dimensions.
3. With
the help of dimensions calculate the tile.
4. Apply
the load gradually on the tile.
5. When
cracks are observed on the tile stop the machine and note the measure load or
applied load.
6. Repeat
the above procedure for different tiles.
Diagram
Compressive Testing Machine
Precautions
1. There
should be no crack in the tile before testing tile.
2. Appearance
of crack on the tile should be observed carefully.
3. Reading
should be taken without doing any mistake.
Observation table
Type of tiles
|
Size of tile in mm
|
Cross-sectional area in mm
|
Load applied in kg
|
Compressive strength in kg/cm2
|
Mosac tile
|
25 x25x2cm
|
50 cm2
|
60,000 kg
|
1200 kg/cm2
|
Chekar tile
|
25x25x2cm
|
50 cm2
|
34,500 kg
|
1690 kg/cm2
|
Calculation
1. Compressive
strength of mosaic tiles where P = 6000, A = 50
Compressive
strength = P/A = 6000 / 50 =
1200 kg/cm2 = 120 N/mm2
2. Compressive
strength of checkar tiles where P = 84500, A = 50
Compressive
strength = P/A = 84500 / 50 =
1690 kg/cm2 = 169 N/mm2
Results
The
compressive strength of the tiles are
Mosaic
tile = 117.6 N/mm2 = 1200 kg/cm2
