A development of 9 flats in Derby have used Celcon Hi-7 aircrete blocks 100mm thick and of 610mm x 215mm face size for the inner skin with brick cladding and a pitched, tiled roof. Bison beam and block concrete flooring was used, with each 1200mm wide, 200mm thick beam resting directly on the Celcon aircrete inner skin. The blocks also helped with thermal and acoustic insulation.
Using Celcon aircrete blocks with the Thin-Joint System has cut build time and resulted in insulation savings for a development of seven townhouses at Cambridge Street, Castleford.
The two products were used for both the inner skin of the external walls and the internal walls of the townhouses.
With the combination of light-weight, ease of handling, and quick-setting mortar meant that it was possible to build a storey-height in a day.
The company claims that it cut construction time by a third and the product's thermal insulation properties meant that it was possible for cost reductions with insulation materials.
When used with the Thin-Joint System, the Celcon blocks achieved a U-value of 0.32 Wm?/k, within the requirements of the Building Regulations Part L at the time of construction.
All seven houses have brick-clad exteriors with half having rendered upper stories.
An extension to North Devon District Hospital in Barnstaple has been built with the use of Celcon aircrete blocks. The product was specified due to its sound insulation properties and fixing strength. Hi 7 aircrete blocks were used for the inner leaves of the external cavity wall with a fully filled cavity. It can be cut with a saw with offcuts able to be used elsewhere, reducing waste.
Specified for the ground floors of two blocks of terraced houses, 167 Celcon Flooring System elements have been installed on a housing development.
The system provides a fast method of installing ground floors with the benefits of a suspended floor. As it is manufactured from aircrete, thermal performance is achieved, often meeting Building Regulation compliance.
When Jehu Projects Services, the Bridgend-based construction and civil engineering company, built its new 1300m? headquarters, it specified Celcon aircrete blocks for the inner skin.
The Thin-Joint system was chosen in order to it speed up the construction process. Using the blocks with the Thin Joint system to fill in the steel frame, a weather-tight envelope was quickly achieved. This took the brickwork off the critical path and enabled work to start on the inside of the offices while the outer skin was still going up.
Jehu's new headquarters building is four storeys high, with rib deck concrete floors and access flooring. Celcon's aircrete blocks with the Thin-Joint system were used at ground, first and second floor level to infill the steel frame, to achieve the then required u-value of 0.35W/m?. The top floor has glazed panel curtain walling.
On a project to provide 33 two, three, and four bed houses at Bucklands End, Birmingham, the Celcon Flooring system has been installed for Waterloo Housing Association.
It provides a product with the benefits of a suspended floor and the attributes of aircrete. Elements up to 6m long can be craned into position and once grouted create a level platform for building. The system was chosen as it is an element of a Modern Method of Construction.
Assisting in cutting building time and reducing wastage on site, Celcon's Thin-Joint system was used to infill a four storey steel-framed apartment block.
The builders installed the company's Jumbo Plus aircrete blocks with Celfix thin-layer mortar. The use of large, lightweight blocks with a quick-setting mortar was considered quicker than using aggregate blocks and conventional mortar. Blocks can be cut on site with a handsaw and the off-cuts can be used elsewhere on the project, reducing wastage on site.
Aircrete has thermal insulation with a thin layer of mortar reducing heat loss through the joint. A u-value of 0.35 met Part L of the Building Regulations and acoustic properties met Part E.
Specified as a low-energy solution, a community centre in Norfolk features a solid wall solution with Celcon Solar Plus blocks and the Thin-joint system. The blocks form the envelope of the building clad in a combination of Cedar boarding and Sto render. With quick setting Celfix mortar, the solid wall was rapidly erected and the required u-values were achieved.
Quick-setting Celfix mortar from Celcon was used with their Thin-Joint system for a school extension in Upper Cambourne.The products are suitable for laying in the winter months, as in this project. It reaches the initial bond strength within 10-20 minutes and full bond strength within 1-2 hours. With special shapes required, the ability to cut with a handsaw was particularly important.
Solid aircrete and quick-setting thinlayer mortar from H+H Celcon has enabled a new development of nine dwellings on the Norfolk Broads to be completed for the holiday season. The contractor ? Reeve Property Restoration ? believes the system saved more than two months compared to traditional construction. Solid exterior walls of Celcon Solar Plus 300mm blocks with thin-joint technology were specified, with drylining on the inside. Cedar and stained shiplap panelling is used for the external cladding of the properties.
Comprising eight double bedrooms, a modern mansion in South Worcestershire has been built using Celcon aircrete blocks and the Thin-Joint system. The company's Hi-7 blocks were used throughout, for both the inner leaf of the external walls and partition walls, providing a solution to both Part L and Part E. They were also sufficiently strong to support the 3.5 tonne concrete floor slabs. Employing two bricklayers, the entire masonry part of the house built in 20 weeks.
Time has been saved for Wates on substantial assisted living home developments in Banstead and Purley in Surrey through the use of Celcon's Thin-Joint system. The inner leafs of the two complexes were constructed using Hi-7 blocks, which were chosen to meet the structural requirements of the project. The Thin-Joint system was chosen to enable the quick completion of a weather-tight envelope, to enable second fix to start inside while the facing brickwork was still going up.
According to manufacturer H+H Celcon, its flooring system saved West Construction one week of build time on an East Grinstead executive dwelling. It is claimed that when used to create a 160m<sup>2</sup> floor in the property, this system took just one day compared with the five days it wouldhave taken to lay a beam and block floor. Elements are simply craned into position, and they are also said to be more accurate that the beam and block alternative. Easier incorporation of services was a further benefit. Floor elements come with a standard module width of 600mm, lengths of up to 6m, and depths of up to 300mm.