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SECIL natural lime NHL 3.5
Application

In the production of mortars, as the only binder or mixed with other hydraulic or non-hydraulic binders, giving them workability and flexibility, significantly reducing retraction in hydraulic mortars (e.g. masonry, rendering and finishing mortars). In the production of rehabilitation mortars, as the only binder, for the execution of internal and external renders, over ancient substrates.

Description

SECIL NHL 3.5 is a moderately hydraulic binder composed in its majority by calcium silicates, aluminates and calcium hydroxide. It is obtained by the burning of marlstone, followed by grinding.It is classified as NHL 3.5 according to the NPEN 459-1:2010. CE marked to EN 459-1:2010.

It is classified as NHL 3.5 according to the NPEN 459-1:2010. CE marked to EN 459-1:2010.

Applications:

In the production of mortars, as the only binder or mixed with other hydraulic or non-hydraulic binders, giving them workability and flexibility, significantly reducing retraction in hydraulic mortars (e.g. masonry, rendering and finishing mortars). In the production of rehabilitation mortars, as the only binder, for the execution of internal and external renders, over ancient substrates.

General information
Uniclass 2015
Pr_20_31_12_39 Hydraulic limesPrimary
CAWS

M20/295 Proprietary parge coat to

M20/310 Lime:sand

M20/320 Lime:sand roughcast (harling)

Specification data - Hydraulic limes
Product Reference

SECIL natural lime NHL 3.5

Standard product features

Technical characteristics:

  • Colour: Beige.
  • Mechanical compressive strength at 28 days to EN 459-1: ≥ 3.5 and ≤ 10 MPa.
  • Specific mass to EN 459-1: 0.65 ± 0.05 kg/dm³.
  • Density: 2.7 g/cm³.
  • Fineness to EN 459-1: 90 µm ≤ 15%. 200 µm ≤ 2%.
  • Free Water to EN 459-1: ≤ 2%.
  • Air content to EN 459-1: ≤ 5%.
  • Penetration to EN 459-1: 50 mm.
  • Sulfates (SO) to EN 459-1: ≤ 2%.
  • Free lime Ca(OH) to EN 459-1: ≥ 25%.
  • Setting time to EN 459-1: Initial: > 1 h. Final: < 30 h.

Literature