Certifications on Recycled PVC Blocks for Flooring

The recycled PVC block is a product that fully embraces the concept of circular economy as the raw material that constitutes it comes from the recovery of electrical cable sheaths. This material is selected, ground and sent to the block production plant.

A construction element with an interlocking shape that allows you to create load-bearing floors for vehicular traffic without weighing on the scale of environmental sustainability through the use of natural resources such as aggregates or the extractive materials that make up cement.

It also contributes to the reduction of plastic waste in the environment as the recovered soft PVC is used 100% in the finished product.

When talking about a recycled product, it must be remembered that in addition to ensuring the circularity of waste raw materials, the self-locking block at the end of its life remains an important raw material and will therefore be recycled again without creating waste.

Furthermore, the technical characteristics of the product created are of considerable value as they have extremely important construction characteristics in terms of vehicle or pedestrian paving that other traditional materials do not have.

For the technical characteristics and systems of use and installation, I refer you to the specific article.

Here we discuss the certifications that the product has achieved through official tests at the Polytechnic of Turin, the Istituto Galileo Ferraris of Turin and the Ministry of the Interior:

Abrasion resistance (UNI 8298/9 standard) using Taber abrasion tester:

• Average mass loss value 370 mg. CS10 type abrasive wheel loaded with 10N

• Average mass loss value 442 mg. CS17 type abrasive wheel loaded with 10N

• Average mass loss value 472 mg. H.22 type abrasive wheel loaded with 10N

• Average mass loss value 576 mg. H.18 type abrasive wheel loaded with 10N

Flexural strength (points 3.1 and 3.2 of Ministerial Decree 3/6/68)

• Average bending strength value 2.17 N/mm2

Compressive resistance, detecting the load applied at the vertical deformations of 10% and 20% of the initial thickness of the specimens, as well as at the occurrence of the first cracks and collapse:

• Thickness reduction of 10% = (104.58KN -9 6.6KN – 80.10 KN)

• Thickness reduction of 20% = (173.40 KN – 170.10 KN – 155.37 KN)

• Cracking load = (236.40 KN – 228.12 KN – 228.12 KN)

• Collapse Load = (303.54 KN – 295, 80 KN – 256.26 KN)

Penetration after 1 minute at 25 °C (UNI 5574/3.5)

• Average penetration value 1.08 mm.

Penetration after 10 minutes at 25 °C (UNI 5574/3.5)

• Average penetration value 1,355 mm.

Penetration after 30 seconds at 45 °C (UNI 5574/3.5)

• Average penetration value 1.075 mm.

Slipperiness with BCRA method, reference law n°13 D:M: 14/6/89 n° 236 for the measurement of the dynamic friction coefficient, prescribed value > 0.4:

• Dry leather slip: 0.585

• Rubber sliding element on wet floors: 0.78

Dimensional stability UNI 5574 (dimensional variations %) measured on two orthogonal directions after 6 hours at 80 °C:

• First direction +0.178 / -0.666 / -0.079

• Second Direction -0.477 / -1.113 / -0.154

• First direction +0.596 / -1.067 / 0.436

• Second direction +584 / -0.499 / -0.651

Residual imprint UNI 5574-3.7 at a temperature of 25 °C:

• Average residual impression value 0.52 mm.

Apparent thermal conductivity UNI 7745:

• Lamda 0.141 W (mK)

Electrical resistance – Surface insulation CEI 64.4 (1973) Temperature 21 °C and humidity 30%:

• Measurement 1 <2x10 (12°) Ohm

• Measurement 2 > 2x10 (12°) Ohm

• Measurement 3 <3x10(12°) Ohm

Electrical resistance – Insulation through the thickness of the material CEI 64.4 (1973) Temperature 21 °C and humidity 30%:

• Measurement 1 <5x11 (11°) Ohm

• Measurement 2 > 3x10 (11°) Ohm

• Measurement 3 <3x10 (11°) Ohm

Resistance to cigarette burn UNI 8298/7 with induced effects:

• Cigarette 1: carbonization and swelling 0.30 mm. medium = Auto-off time T0 / 671 / auto-off

• Cigarette 2: carbonization and swelling 0.35 mm. medium = Time T0 675 / 665 / 660

• Cigarette 3: carbonization and swelling 0.37 mm. average = Time T0 690 / 748 / 705

Reaction to fire and approval for fire prevention issued by the Ministry of the Interior:

• CSE RF 2/75/A method: Category 1 (one)

• CSE RF 2/77 method: Category 1 (one)

Based on the test results, the product can be assigned to fire reaction class 1 (one)

Analysis on the Eluate Attachment 3 of the Ministerial Decree 22/1/1998:

• Copper Cu mg/l: test average 0.05

• Zinc Zn mg/l: test average 3

• Lead Pb mg/l: average test 50

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