NEODUR Hard Screed HE 65

Application

For the production of heavy-duty industrial floors, e.g. multi-storey car parks, industrial halls, assembly halls, aircraft hangars, workshops, high-bay warehouses and other industrial areas with the highest loads. For indoor and outdoor use.

Properties

• : highly wear-resistant even under the heaviest loads
,
• high surface tightness
• , resistant to gasoline, mineral oil, solvents
,
• lift-resistant
• , waterproof, suitable for wet rooms,
• non-slip, anti-slip,
• anti-slip, frost and de-icing salt,
• electrostatic, non-rechargeable
,
• chloride-free,
• physiologically and ecologically harmless
,
• pumpable
• Consistent quality through quality assurance in accordance with DIN EN 13813

Processing

fresh on fresh:

• Substrate: The load-bearing concrete must be produced at least as C 25/30 in accordance with DIN EN 206 (Attention: no use of air-void concrete!). Produce the surface in a height-appropriate manner within the tolerance limit according to DIN 18202. For intermediate post-treatment of the load-bearing concrete, we recommend KOROCURE (see data sheet). The fresh load-bearing concrete that has just been walked on is rubbed off with a plate smoothing machine.
• Processing: Mix NEODUR HE 65 with the specified amount of water for approx. 3 minutes, depending on the type of processing, and apply it to the fresh, previously cleared surface, pull off via gauges (round bars) using an aluminium straightener or vibrating plank and rub it off in a timely manner using a plate troweling machine to close the pores and smooth it according to the required surface structure (leaf troweling machine).

on hardened load-bearing concrete:

• Substrate: The load-bearing concrete (at least C 25/30, surface tensile strength ≥ 1.5 N/mm²) must be prepared, e.g. milling and shot blasting. For a force-fit composite, the surface must be crack-free, even, free of loose and crumbly components and ultra-fine mortar enrichments, as well as rough and open-pored. The requirements of DIN 18365 and DIN 18560 apply. The flatness should comply with DIN 18202, Table 3, Line 3. Thoroughly pre-wet load-bearing concrete one day before installation, avoid puddling. Apply KORODUR HB 5 adhesive bridge to the matt damp surface (see data sheet).
• Processing: NEODUR HE 65 is laid "fresh on fresh" in a layer thickness of 15 mm (see data sheet KORODUR-KOROTAN).

Aftertreatment

Different temperatures influence the solidification or hardening process. NEODUR HE 65 must be protected from drying out too quickly in accordance with DIN EN 13670 / DIN 1045-3. For post-treatment of the NEODUR hard coating, we recommend the products KOROMINERAL CURE or KOROTEX (see data sheets). If subsequent surface treatment, coating or markings are planned, the post-treatment should only be carried out with film.

Joints

The joint grid must be specified by the planner. All joints in the hardened load-bearing concrete are to be taken over in the hard material layer. The hard screed must be separated from rising components (walls, columns, etc.).

Delivery form

• 25 kg special paper packaging (NEODUR HE 65),
• 30 kg special paper packaging (NEODUR HE 65 SVS 3 and NEODUR HE 65 SVS 1.5),
• loose as silo goods
• , big bag

storage

dry storage like cement. Shelf life approx. 12 months.

Quality:

• NEODUR HE 65: CT-C70-F9-A6
• NEODUR HE 65 SVS 3: CT-C70-F9-A3
• NEODUR HE 65 SVS 1.5: CT-C70-F9-A1.5

Grit:

• all qualities: 0 - 5 mm

Colour:

• all qualities: cement grey

Grinding wear (wear resistance according to Böhme according to DIN EN 13892-3):

• NEODUR HE 65: ≤ 5.0 cm³/50 cm²
• NEODUR HE 65 SVS 3: ≤ 3.0 cm³/50 cm²
• NEODUR HE 65 SVS 1.5: ≤ 1.5 cm³/50 cm²

Compressive strength [N/mm²] (after 28 days, measured on defined prisms according to DIN EN 13892-2):

• all qualities: C70

Bending tensile strength [N/mm²] (after 28 days, measured on defined prisms according to DIN EN 13892-2):

• all qualities: F9

Temperature (processing, processing, Ambient and substrate temperature):

• all qualities: ≥ 5 °C

Water addition:

• NEODUR HE 65: approx. 2.75 l/25 kg Container
• NEODUR HE 65 SVS 3: approx. 3.30 l/30 kg Container
• NEODUR HE 65 SVS 1.5: approx. 3.30 l/30 kg Container

Material consumption (per m² / per mm layer thickness):

• NEODUR HE 65: approx. 2.1 kg
• NEODUR HE 65 SVS 3: approx. 2.1 kg
• NEODUR HE 65 SVS 1.5: approx. 2.2 kg

frost and de-icing salt resistance (With a layer thickness of ≥ 10 mm, hard material screeds are to be classified as frost and de-icing salt resistant in the sense of the CDF test procedure.):

• all qualities: yes

Penetration behaviour (according to DAfStB guideline for "concrete construction when handling water-polluting substances"). With a layer thickness of ≥ 10 mm, hard screeds are to be classified as dense within the meaning of the DAfStB guideline.):

• all qualities. yes

Layer thickness according to stress groups (according to DIN 18560-7):

NEODUR HE 65 / NEODUR HE 65 SVS 3:

• Group A: I (heavy) Nominal thickness: 15mm
• Group A: II (medium) Nominal thickness: 10mm
• Group A: III (light) Nominal thickness: 8mm

NEODUR HE 65 SVS 1,5:

• Group KS: I (heavy) Nominal thickness: 6mm
• Group KS: II (medium) Nominal thickness: 5mm
• Group KS: III (light) Nominal thickness: 4mm