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Home > Structure > Masonry > Concrete Blockwork > Hollow concrete blockwork - masonry Firth Hollow Masonry Firth has currently engaged in an environmental assessment of its products with Greenbuild. Work is in progress and results will be published shortly.The Firth range of masonry blocks includes: Firth 10 Series masonry Firth 15 Series masonry Firth 20 Series masonry Firth 25 Series masonry Firth GuardBloc® masonry, has enhanced water resistance to improve the weather tightness of masonry buildings and offers a second line of defence against rainwater ingress.
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Firth has a Hollow Masonry block suited to vitually every construction application. The Firth Hollow Masonry range provides an ideal way to construct attractive, durable, low maintenance homes, commercial and industrial developments. Firth Hollow Masonry also can be used for landscaping features such as retaining walls, fences or in-ground swimming pools. GuardBloc® is ideal for applications where extra weather tightness is desired including single skin masonry and all Architectural Masonry applications.
Strength: a significant advantage over light timber frame construction. Rigidity, durability, will not rot. Thermal Mass is one of the greatest advantages of concrete masonry. Its capacity to store energy and delay the passage of heat reduces material costs and energy consumption, while enhancing the comfort of people living or working in the building. Fire Protection: concrete masonry is recognised by the Fire Service and insurance industry for its extra ability to resist fire. Sound Control: concrete masonry reduces sound transmission. GuardBloc® also has superior water resistance. After wet weather GuardBloc® drys out quickly allowing more rapid blocklaying.
Firth Hollow Masonry is made of concrete, an inert material comprising aggregates, sand, cement and water. Aggregates and sand are sourced close to manufacturing locations. Cement is New Zealand made. No toxic preservatives are required for preventing rot. Firth is committed to sustainability in concrete manufacture and distribution, including the recycling of surplus raw materials, water and leftover concrete. Firth GuardBloc® masonry has water resistant ingredients in the block mix that increase resistance to the passage of water through them.
Compressive strength: 12.5 MPa. Dimensions: Firth 10 Series: Standard unit 390mm x 90mm x 190mm Firth 15 Series: Standard unit 390mm x 140mm x 190mm Firth 20 Series: Standard unit 390mm x 190mm x 190mm Firth 25 Series: Standard unit 390mm x 240mm x 190mm Firth GuardBloc®: Standard unit 390mm x 190mm x 190mm GuardBloc® technology can be applied to made-to-order blocks, different finishes are available including: fair faced (standard), honed, split faced, split fluted and coloured.
Installation to be in accordance with NZS 4210, especially relative to tooling of joints and mortar strength. GuardBloc® should be used in conjunction with Dricon® GuardBloc® Mortar.
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