Test method for splitting tensile strength tester of Keyu brand TSK-75 permeable pavement brick

Test device for splitting tensile strength of Keyu brand TSK-75 permeable pavement brick Test method for splitting tensile strength of Keyu brand TSK-75 permeable pavement brick

Test device for flexural strength of permeable channel panels

Test method for flexural strength of permeable channel panels

The flexural strength test method for permeable waterway panels adopts standardization

Record A ", basically referring to the EN1339:2003" Concrete pavement slab "standard

Appendix F of the standard specifies specific provisions for instruments and equipment, auxiliary tools, product maintenance age, and types of leveling materials to minimize human error

Test errors caused by equipment. The main changes include: considering the trial

Test the range of the machine, take the largest plate width of the test piece as 200mm. When the size of the water passage panel is larger than this, it needs to be cut.

The requirement that the width of the test piece should not exceed 200mm is due to the fact that large-sized road panels cannot be placed on the test benches of the vast majority of testing machines

* Line cutting is required. Therefore, using a relative * specimen plate width is beneficial for data comparison; It is also beneficial for quality control during production (road panels with the same strength grade can use the same mix ratio without considering it)

The size of the product.

Splitting tensile strength test device (fixture) for permeable pavement bricks

permeable

Test method for splitting tensile strength tester of Keyu brand TSK-75 permeable pavement brick

1. Hydraulic pressure testing machine

The relative error of the indication of the hydraulic pressure testing machine should not exceed 1%, and at least one section of the upper and lower pressure plates should be a ball joint support that can be rotated freely; The range selection should enable the expected flexural failure load of the specimen to be between 20% and 80% of the full range.

2. Two gaskets

Each piece should be (15 ± 1) mm wide and (4 ± 1) mm thick, and the length of the gasket should be at least 10mm longer than the expected fracture surface of the specimen. The material of the gasket is plywood.

3. Steel ruler

Division value 1 mm

4. Vernier caliper

（0-125）mm, Precision 0.02mm,

5. Cutting machine, polishing machine, level ruler

6. Workbench

A smooth flat surface with a suitable area and a hard material surface. Only after passing the verification with a level ruler can it be put into use.

Selection of test specimens:

The number of test pieces is five complete permeable bricks. The curing age of permeable concrete pavement bricks after forming should be greater than 28 days.

Experimental Procedure:

Place the test piece and two gaskets on the hydraulic pressure testing machine as specified. Apply the load uniformly at a rate of 0.04MPa/s-0.06MPa/s until the specimen breaks, and record the failure load P.

Calculation of experimental results:

Calculate the area of the failure surface of the specimen according to the formula, accurate to 0.1mm ^ 2:

S=l*t

Where:

S - The area of the damaged surface, measured in square millimeters (mm ^ 2);

L - The average length of the two sections of failure on the upper and lower surfaces of the specimen, measured in millimeters (mm);

The average of two thickness values measured at both ends of the damaged section of the specimen, in millimeters (mm)

Calculate the splitting tensile strength Fu of the specimen according to the formula

Fu=0.637*k*(P/S)

Where:

Fu - splitting tensile strength, in megapascals (MPa);

P - destructive load, unit: Newton CN);

K - correction factor for specimen thickness,

Testing instrument for permeable concrete pavement bricks in the building materials industry

Equipment configuration for permeability testing of permeable cement concrete

Construction of laboratory for testing equipment for permeable concrete pavement bricks in sponge cities

Execution standard:GBT25993-2010Permeable pavement bricks and slabs

GB28635-2012Concrete pavement bricks

JGT 376-2012Sand based permeable bricks

CJJ/T135-2009《Technical Specification for Permeable Concrete Pavement

1，Permeable cement concrete permeability coefficient test device

2，Fully automatic permeability coefficient vacuum saturation test device

3，Test device for splitting tensile strength of concrete pavement bricks

4，Test device for flexural strength of concrete pavement bricks

5，Permeable concrete pavement brick steel wheel abrasion tester

6，Permeable concrete pavement brick anti slip swing friction coefficient tester

7，Permeable concrete pavement brick water absorption tester

8，Permeable concrete pavement brick frost resistance test box

9，Concrete pavement brick drilling and coring machine

10On site permeability coefficient test device for concrete pavement

11Concrete pavement brick ball bearing wear-resistant testing machine

12,Concrete block anti-seepage test device

13Decorative concrete block anti-seepage test device

14，Sand based permeable brick anti bending device

15Sand based permeable brick drop ball impact testing machine

16Sand based permeable brick permeability rate tester

17Sand based permeable brick permeable time blocking cover

18Sand based permeable brick filtration rate test device

19Sand based permeable brick trial mold300X150X65mm
20,Permeable cement concrete molding test mold ￠100X50mm

21,Brick cutting machine ZQG-100 type

22，Pressure plate for compressive test of concrete pavement bricks