D-sorb for road use

STANDARD UNI CEN / TS 15366: 2010 and SKID RESISTANT TEST

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D-SORB DIATOMITE

UNI CEN/TS 15366:2010 TECHNICAL SPECIFICATION – SOLID ABSORCENT PRODUCTS FOR ROAD USE

UNI CEN / TS 15366:2010 sets test and procedures to satisfy the legal and safety requirements. The most important or innovative aspect is the SRT test, which must be overcome by road-absorbing materials so that vehicle safety can be ensured after use.

SRT (SKID RESISTANT TEST) represented by the simultaneous overcoming of the following test in two parts:

  • SRT on wet absorbent > 80%
  • SRT on the road surface after removing the contaminated absorbent > 85%

What is the SRT test (SKID RESISTANT TEST), a sliding friction test?
Each surface has a “frictional friction” value, which varies according to a variety of factors: material from which it is composed, temperature, atmospheric agents and, above all, pollutants and materials suitable for reclamation.

SRT test on wet absorbent
This test describes the test method for assessing the adherence variation due to the presence of a scattered absorbent on wet road surfaces.

In order to meet the safety requirements and protect the companies and bodies responsible for road maintenance, has been drawn up a test protocol to evaluate the behavior of saturated water absorbing products (rain effect) on wet road pavements.

Was fixed a minimum value of 80% of residual adhesion after intervention simulated in laboratory and therefore it is concluded that:

  • the value > 80% security condition;
  • the value < 80% Insecure condition – in this case, the only presence on the roads of these absorbing materials severely affects the safety of road traffic.

SRT test on the road surface after removing the contaminated absorbent.
Method for assessing the variation of fiction on road surfaces subject to hodrocarbon spill after the use of absorbent materials. As a result, is highlighted the effectiveness of absorbents for road use.

Since our roads are subject to different meteorological conditions, the test in question has been drawn up by assessing the case where the road pavement is wet and the reclamation should take place in rainy weather, practically the worst situation where one could find.
In fact, in these circumstances, many absorbents tend to swell and create a slippery paste (similar to that of clay after being wet).

The test result expresses the SRT value by representing the percentage of frictional friction on the ground after using absorbent materials. Plus the value approaches 100, which represents the state of the surface before the operation, so the absorbent product used is safe and effective in its non-slip action.

The D-SORB DIATOMITE product is in compliance with UNI CEN / TS 15366: 2010 standard, since with the values:

  • SRT on wet absorbent = 129,7% (minimum required 80%)
  • SRT after removing the wet absorbent = 87,4% (minimum required 85%) has exceeded the minimum requirements required by the Standard.

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