STEP  1 

Objective:

To determine the split tensile strength of cylinder concrete specimen as per IS 1199.

Apparatus used:

CTM, Split tensile loading setup

Specimen Type
Cylinder

STEP  2 

 Provide Specimen Details

Enter the Age of specimen:

Days

Select the Diameter (D) of the Specimen:

--Select-- 150 mm

Select the Length (L) of the Specimen:

--Select-- 300 mm

/

STEP  3  a). Click on the specimens to take them out of the curing tank.
b). Click on the cloth to wipe off the surface water on the specimens.
Note: Any projecting fins shall be removed from the surfaces which are to be in
contact with the packing strips. / / /

STEP  4  a). Using a marker, central lines shall be drawn on the two opposite faces.
Note: Ensure that they are in the same axial plane.

STEP  5  a).Place the specimen in machine with lines marked on the ends stay vertical and centered over the bottom plate.

Note: Place the other hardwood strip below and above the specimen. / /

STEP  6  a). Click Numpad on CTM for zoom view. b). Enter the rate of loading in KN/sec so that the effective rate of loading is from 1.2 to 2.4 N/mm²/min.

/

STEP  7   Specimen 1  a). Click on the dial of CTM for zoomed view. b). Click Start button of CTM to initiate the test. c). Click Stop Button to see Values /

Load at Failure:		KN
Time:		sec.

Click Next to Examine the fractured specimen.

STEP  8   Specimen 1  Examine the fractured specimen.

 

 Fracture type

--Select-- Satisfactory Unsatisfactory

/

STEP  9   Specimen 2  a). Click on the dial of CTM for zoomed view. b). Click Start button of CTM to initiate the test. c). Click Stop Button to see Values /

Load at Failure:		KN
Time:		sec.

Click Next to Examine the fractured specimen

STEP 10  Specimen 2  Examine the fractured specimen.

 

 Fracture type

/ --Select-- Satisfactory Unsatisfactory

STEP 11  Specimen 3  a). Click on the dial of CTM for zoomed view. b). Click Start button of CTM to initiate the test. c). Click Stop Button to see Values /

Load at Failure:		KN
Time:		sec.

Click Next to Examine the fractured specimen.

STEP 12  Specimen 3  Examine the fractured specimen.

 

 Fracture type

/ --Select-- Satisfactory Unsatisfactory

Click Next to Repeat the test.

STEP 13  Specimen 3*  a). Click on the dial of CTM for zoomed view. b). Click Start button of CTM to initiate the test. c). Click Stop Button to see Values /

Load at Failure:		KN
Time:		sec.

Click Next to Examine the fractured specimen.

STEP 14  Specimen 3*  Examine the fractured specimen.

 Fracture type

/ --Select-- Satisfactory Unsatisfactory

STEP 15 Observations: Click Show button to see load at failure of samples (P), failure type.

Specimen No.	Load at failure of samples (P)	Failure type
Specimen 1	kN
Specimen 2	kN
Specimen 3	kN
Specimen 3*	kN
Splitting tensile strength of samples (fct)
Specimen 1	MPa
Specimen 2	MPa
Specimen 3	MPa
Specimen 3*	MPa

STEP 16 Final Results: Click View button to see Results for new specimen

Splitting tensile strength (fct)
Specimen 1
Specimen 2
Specimen 3
Specimen 3*
Result: Average flexural strength =

Click Next to Generate Report.

STEP 17 Report Length (L) of specimen = Diameter (D) of specimen = Concrete grade=

No.	Identification mark	Age in days	Testing date	Maximum load(kN)	Failure type	Flexural strength(MPa)	Avg. value
1
2
3
4

STEP 17