{"product_id":"300mm-celcon-h-h-standard-aerated-3-6n-concrete-foundation-block","title":"300mm Celcon H+H Standard Aerated 3.6N Concrete Foundation Block","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003e300mm Celcon H+H Standard Aerated 3.6N Concrete Foundation Block, designed for below-ground foundation walls and courses below damp proof course. \u003cbr\u003e\u003cbr\u003eProvides strength, insulation, and reliable support in low to medium-load residential and commercial applications.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eFeatures \u0026amp; Benefits\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompressive strength 3.6N\/mm²:\u003c\/strong\u003e Suitable for foundation work in multi-storey buildings and heavy-load areas.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightweight aerated concrete:\u003c\/strong\u003e Easier to handle and install, reducing labour effort on site.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal efficiency:\u003c\/strong\u003e Aerated structure provides better insulation than dense concrete blocks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass A1 fire resistance:\u003c\/strong\u003e Non-combustible, meeting the highest standard for fire safety.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrost resistance:\u003c\/strong\u003e Withstands freeze-thaw cycles for long-term durability in varying climates.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSulfate resistance (DS1–DS4 soils):\u003c\/strong\u003e Reliable in mild to severe sulfate conditions below ground.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuality assurance:\u003c\/strong\u003e Manufactured under strict controls for consistent strength and performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile application:\u003c\/strong\u003e Suitable for foundations, solid walls, cavity walls, and beam \u0026amp; block flooring.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFoundation walls (below DPC):\u003c\/strong\u003e Provides a stable, load-bearing base in residential and commercial construction.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolid or cavity walls:\u003c\/strong\u003e Supports a wide range of wall designs for structural flexibility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuspended floors:\u003c\/strong\u003e Compatible with beam and block floor systems for ground or basement levels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFramed construction support:\u003c\/strong\u003e Used below ground to stabilise structural frames in framed buildings.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Guidance\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLaying below ground without mortar perpends:\u003c\/strong\u003e Ensures proper drainage and installation efficiency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFollow engineer’s embedment depth requirements:\u003c\/strong\u003e Guarantees foundations perform to structural design.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBed blocks on suitable mortar:\u003c\/strong\u003e Provides stable seating and maximises load-bearing capacity.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCompliance \u0026amp; Performance\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompressive strength 3.6N\/mm²:\u003c\/strong\u003e Meets structural requirements for foundation blockwork.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSulfate condition suitability (DS1–DS4):\u003c\/strong\u003e Designed for use in soils with low to high sulfate levels. Resistant to sulfate attack in categories DS1 (mild exposure) through DS4 (severe exposure), ensuring durability across a wide range of ground conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlease Note:\u003c\/strong\u003e Blocks are designed for below-ground use and must be laid without mortar perpends when installed underground. Always follow engineer’s guidance for load-bearing requirements and soil condition suitability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePallet Charge: \u003c\/strong\u003eOrders requiring a pallet will incur a refundable pallet charge. Our customer service team will confirm if this applies to your order.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Celcon","offers":[{"title":"Default Title","offer_id":53771415126127,"sku":"5003291","price":9.25,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9784\/4591\/files\/Celcon_foundation_-_Photo.jpg?v=1783758353","url":"https:\/\/supplyyard.co.uk\/products\/300mm-celcon-h-h-standard-aerated-3-6n-concrete-foundation-block","provider":"Supply Yard","version":"1.0","type":"link"}