Splitting tensile strength tester for permeable paving bricks, splitting tensile strength table for permeable paving bricks, splitting tensile strength testing machine for permeable paving bricks

Equipment selection:

1. Hydraulic pressure testing machine

The relative error of the indication value of the hydraulic pressure testing machine shall not exceed 1%. At least one section of the upper and lower pressure plates shall be ball-supported and can be rotated freely; the range selection shall be such that the expected breaking load of the specimen is 20%-80% of full scale.

2, two gaskets

The width of each piece is 15 ± 1 mm and thick (4 ± 1) mm. The length of the gasket should be at least 10 mm longer than the expected fracture surface of the test piece. The material of the pad is a five-ply board.

3, steel ruler

Graduation value 1 mm

4, vernier caliper

(0-125)mm, precision 0.02mm,

5, cutting machine, polishing machine, level

6, workbench

A smooth surface with a suitable area and a hard surface. It should be used after being level tested.

Selection of test pieces:

The number of test pieces is five complete permeable paving bricks. The curing age of permeable concrete pavers should be greater than 28d.

experiment procedure:

Place the test piece and two gaskets on the hydraulic pressure tester. The test piece was evenly loaded at a loading speed of 0.04 MPa/s to 0.06 MPa/s, and the breaking load P was recorded.

Calculation of test results:

Calculate the area of ​​the failure surface of the test piece according to the formula, to the nearest 0.1mm^2:

S=l*t

In the formula:

S----the area of ​​the failure surface, the unit is square millimeter (mm^2);

L—the average value of the length of the two sections on the upper and lower surfaces of the test piece, in millimeters (mm);

T—the average value of the two thickness values ​​measured at both ends of the fracture section of the test piece, in millimeters (mm)

Calculate the splitting tensile strength of the test piece according to the formula.

Fu=0.637*k*(P/S)

In the formula:

Fu—cracking tensile strength in megapascals (MPa);

P-—damage load in units of Newton CN);

K—the correction factor for the thickness of the test piece,




For details, please contact Jinan Zhongchuang Industrial Testing System Co., Ltd. Sales Engineer 0531-85555885 15689703761 QQ 3070594936
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