Thin-Joint Method

The H+H Thin-Joint system combines the Celcon Plus, Jumbo Blok or MultiPlate ranges of high quality, accurately dimensioned aircrete blocks with a specially developed Thin-Joint mortar (called Celfix).

Thin-Joint blockwork enables walls to be built very quickly without having to wait the conventional 24 hours for the mortar to set before further loading can be applied.

Celfix Mortar is cement based and supplied as a dry, pre-mixed powder in 25kg bags. It has been designed to replace the traditional sand:cement mortar. Celfix Mortar starts to set within 10 minutes of application and approaches full design strength in just 1 to 2 hours. This enables blockwork to be built extremely quickly, and in the case of cavity wall construction independently of the outer leaf, which is normally brickwork.

Celfix Mortar is easily mixed on site by adding the appropriate quantities of water. It is applied with a proprietary scoop or sledge, which will create a consistent joint thickness of 2mm.

The Thin-Joint system enables the structure of a building to be built faster and to a better quality, allowing follow-on trades to start work sooner in a weatherproof environment, whilst retaining the flexibility of on-site construction.

Fully adopted as the preferred method of wall construction throughout most of Europe, this innovative and award-winning system is now firmly established within the UK. The Thin-joint system can also be used successfully for commercial projects.

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