SIST EN 1015-6:1999

SIST EN 1015-6:1999 is a Slovenian national standard published by SIST. It specifies a test method for determining the bulk density of fresh mortar, including mortars made with mineral binders and with dense or lightweight aggregates. The standard is the Slovenian adoption of EN 1015-6:1998.

What does SIST EN 1015-6:1999 specify?

SIST EN 1015-6:1999 covers one laboratory test: determining the bulk density of fresh mortar. It applies to mortars with mineral binders and to mortars containing dense or lightweight aggregates, so it is relevant wherever different mortar formulations need the same density measurement.

As Part 6 of the Methods of test for mortar for masonry series, the document is focused on this single property rather than on a full mortar specification. In practice, that means users looking for a fresh-mortar density procedure can use this part as a dedicated reference for that measurement.

What are the key requirements of SIST EN 1015-6:1999?

SIST EN 1015-6:1999 requires the bulk density of fresh mortar to be determined by a standard test method. The important point is that the measurement is for the fresh, workable state, not for hardened mortar.

The scope makes clear that the method applies to mortars with mineral binders. That matters because the same test is intended to be usable across common masonry mortar types, not only one binder family.

The scope also includes mortars with dense aggregates and lightweight aggregates. This matters in practice because aggregate choice changes density, so a common method is needed when comparing mixes or checking different products.

Because the document is a test method, its practical value is the production of a comparable bulk-density result for fresh mortar. Users need that result when they want a consistent measurement for a mortar mix rather than a visual or approximate assessment.

What terms does SIST EN 1015-6:1999 define?

SIST EN 1015-6:1999 centers on a few key terms that shape the test.

• Bulk density - the mass of the fresh mortar per unit volume, which is the quantity the test determines.
• Fresh mortar - mortar in its newly mixed, workable condition before it hardens.
• Mineral binders - mineral binding materials used in mortar formulations.
• Dense aggregates - aggregates used in mortar that give a comparatively higher density.
• Lightweight aggregates - aggregates used to reduce mortar density.

These terms matter because they describe the material state and composition that the method covers, which is what a laboratory must identify before testing.

Who uses SIST EN 1015-6:1999?

SIST EN 1015-6:1999 is used by laboratories and by organizations involved with masonry mortar testing. It is also relevant to mortar producers, specifiers, and buyers who need a standard bulk-density result for fresh mortar.

In practice, the standard supports mix control, product checking, and comparison between mortars made with different binders or aggregates. Anyone who needs to measure and report the density of fresh masonry mortar can use the same method as a common reference.

What changed in SIST EN 1015-6:1999 from the previous edition?

SIST EN 1015-6:1999 is identified as identical to EN 1015-6:1998.

What does the SIST EN 1015-6:1999 document contain?

SIST EN 1015-6:1999 contains the method for determining the bulk density of fresh mortar and the front matter that identifies the standard, its title, and its classification. The page also places it in ICS 91.100.10, under cement, gypsum, lime, and mortar.

For a user, the document is the reference to consult when a fresh mortar density test is needed for masonry work. It is a focused test standard, not a general mortar specification.