How To Test The Impact Resistance Of Anti-static Terrazzo? Will Dragging Heavy Objects Cause Cracking

Testing method for impact resistance of anti-static terrazzo and analysis of the influence of heavy object drag
1, Test method for impact resistance performance
The impact resistance of anti-static terrazzo needs to be evaluated through standardized testing to assess its ability to withstand dynamic loads. The core testing methods and standards are as follows:

falling weight impact test
Equipment: Use a standard drop hammer impact testing machine equipped with adjustable height and weight drop hammers.
Steps:
Fix the anti-static terrazzo sample (usually 300mm x 300mm in size) on the test bench.
The hammer falls freely from the set height (e.g. 1m) and impacts the central area of the specimen.
Observe whether there are cracks, damages or delamination on the surface of the sample, record the impact energy (such as 50J, 100J) and the damage situation.
Standard basis: Referring to the "Technical Regulations for Anti static Construction of Building Ground Engineering" or similar industry standards, clarify the corresponding relationship between impact energy and failure mode.
Calculation of impact strength
Formula:
σ=
A
E
​

Among them, $\ sigma $is the impact strength (MPa), $E $is the impact energy (J), and $A $is the impact area of the sample (mm ²).
Result judgment: If the sample has no cracks or damage under impact energy of 50-100J, it meets the requirements of high impact resistance performance.
Simulation of actual application scenarios
Simulate the scene of heavy object dragging in the laboratory, using a roller or slider with a specified weight (such as 100kg) to drag back and forth on the surface of the sample at a certain speed (such as 1m/s) for 100 times.
Observe surface wear, cracks, and changes in anti-static performance to evaluate their durability.

2, The influence of heavy object dragging on anti-static terrazzo
The performance of anti-static terrazzo under heavy object dragging needs to be comprehensively analyzed based on material characteristics and construction technology:

Material characteristic advantages
High hardness and wear resistance: The anti-static terrazzo has a Mohs hardness of 6-7 levels, close to natural stone, and can withstand frequent friction and heavy object crushing, reducing performance degradation caused by wear.
Low water absorption rate: The water absorption rate is usually ≤ 0.5%, and it can maintain stable anti-static performance in humid environments, avoiding the attenuation of conductivity caused by moisture absorption.
Impact resistant design: By optimizing the aggregate ratio and binder strength, the impact resistance can withstand impacts of 50-100kg without damage, meeting the requirements of general industrial scenarios.
Key role of construction technology
Grassroots treatment: If the flatness of the grassroots is poor or there is hollowing, dragging heavy objects may cause local cracking due to stress concentration.
Adhesive strength: Using specialized adhesives (such as anti-static terrazzo adhesive with adhesive strength ≥ 1.5MPa) can effectively prevent floor hollowing and peeling, and enhance impact resistance.
Grid joint design: Reasonable setting of grid joints (spacing ≤ 6m) can release stress and avoid overall cracking caused by temperature changes or heavy object rolling.
Actual cases and standard verification
Industry standard requirements: According to the "Testing Method for Anti static Systems in Electronic Product Manufacturing" (SJ/T10694-2006), anti-static terrazzo needs to pass the "surface resistance, system resistance" test (range 1 × 10 ⁴ -1 × 10 ¹⁰ Ω) and meet the requirement of "frictional electrification voltage<50V".
Long term durability: High quality anti-static terrazzo can withstand heavy object dragging (such as forklift and shelf movement) for a long time under correct construction and maintenance, with low surface wear rate and slow degradation of anti-static performance (usually still effective for more than 10 years).

3, Conclusion and Suggestions
Impact resistance: Anti static terrazzo can be verified for its impact strength (50-100J without damage) and wear resistance through drop hammer impact test and simulated heavy object drag test, meeting the requirements of industrial scenarios.
The impact of heavy object dragging: Under correct construction conditions (flat base, firm bonding, reasonable grid joints) and regular maintenance conditions (cleaning, moisture-proof), heavy object dragging will not cause cracking or failure of anti-static performance.
Selection suggestion:
Priority should be given to anti-static terrazzo products with a Mohs hardness of ≥ 6 and a water absorption rate of ≤ 0.5%.
Require the construction unit to provide a bond strength test report (≥ 1.5MPa) and a grid joint design drawing.
Regularly check the surface resistance and friction induced voltage to ensure the continuous effectiveness of anti-static performance.