What is BS EN 1015-21 - Determine the compatibility of OC rendering mortars about?
The term mortar is used in the building industry to denote a mixture of natural sand or other fine aggregate and some binding agent, used as a jointing or a surface plastering and rendering material.
BS EN 1015 is a European Standard on methods of test for mortar for masonry. The main aim of the BS EN 1015 series is to provide the best industry guidance to ensure construction materials contribute to the structural integrity of your civil engineering works.
BS EN 1015-21 is the 21st part of the BS EN 1015 series that specifies a test method for determining the compatibility of One-Coat (OC) rendering mortars with given substrates.
Who is BS EN 1015-21 - Determine the compatibility of OC rendering mortars for?
BS EN 1015-21 on determining the compatibility of OC rendering mortars is useful for:
- Manufacturers of construction materials and products
- Mortar and masonry manufacturers
- Cement and concrete industry
- Manufacturers of binders and aggregates
- Builders
- Contractors
- Civil engineers
Why should you use BS EN 1015-21 - Determine the compatibility of OC rendering mortars?
One-coat rendering mortars are applied to substrates specified by the manufacturer. The evaluation is based on the determination of the adhesion strength and water permeability of the hardened render applied on defined substrates, after exposure to weathering cycles.
In this regard, BS EN 1015-21 provides the apparatus and materials requirements used for tests as well as sampling and preparation and storage of test specimens along with test procedure to evaluate the compatibility of OC rendering mortar with a given substrate.
As a result, you can evaluate concrete performance and demonstrate the ability of materials to contribute to the stability and structural integrity of your construction works. Compliance with
BS EN 1015-21 can also play a positive role in the concrete design mix for your construction projects.
Overall, render coats provide a protective coating that would prevent rain penetration and also acts as a decorative finish to enhance the appearance of a building.
