Thomas Armstrong (Concrete Blocks) Ltd Incorporating Stocks Blocks Ltd William Rainford (Holdings) Ltd Barnetts (Buglawton) Ltd Concrete Blocks Product & Technical Guide A comprehensive guide to our extensive range of concrete blocks from our group of companies

Serving the construction industry since 1830 We are continually striving to further enhance the timber and saw mill operation we sustainability credentials of our operations and products have grown and expanded our through the increased use of recycled material in our operations into quarrying, blocks and with a commitment to minimise our impact on construction and the manufacturing of concrete blocks. the environment by reducing energy use throughout our operations and continue to produce high-quality products We produce a comprehensive range of masonry building and paving blocks compliant to...

TECHNICAL PERFORMANCE 4 - Quality, Environmental & Sustainability PRODUCTS 10 - ULTRALITE low density aggregate blocks 11 - INSULITE medium density aggregate blocks DESIGN & DETAILING 12 - DENSE dense concrete blocks 13 - MIDI dense concrete blocks 14 - CELLULAR dense concrete blocks 15 - HOLLOW dense concrete blocks 32 - Movement Control & Wall Ties 16 - ARMSTART foundation blocks 17 - BRICKS concrete common & coursing blocks 18 - SPECIAL PRODUCTS slip, infill, Rockfaced blocks 19 - AIRTEC aerated concrete blocks SITE WORK 35 - Storage & Laying of Blocks 36 - Mortars & External Renders 38 -...

Quality, Environmental and Sustainability We believe that the key to success as a business is to ensure the very best standards of quality and customer service which is one of the reasons why we have continually grown and developed as a business since 1830. We are fully committed to minimising our impact upon the environment and to promoting the undoubted and proven sustainability of masonry construction; a Commitment to Quality We have been in business since 1830 and one of the key reasons for our longevity and continual development as a company is our commitment to quality and ensuring that...

Masonry: Built to last several lifetimes. In common with the concrete block industry in general, we manufacture from locally sourced raw materials, support local jobs and economies and minimise our environmental impact by sourcing as close as possible to our manufacturing facilities. We have therefore no requirements as an industry to demonstrate compliance with stringent FSC or Chain of Custody requirements placed on manufacturers who may source their materials from countries with poor ethical, social and environmental records. The concrete block manufacturing process produces very little or...

MIDI Dense Cellular Dense Hollow Dense Special Products 6 | For further information - visit www.thomasarmstrong.co.uk

Special Products Low Density Aggregate Blocks Medium Density Aggregate Blocks Concrete Blocks Aerated Concrete Blocks Bricks, slips, infill blocks Low density aggregate blocks with enhanced thermal properties. The perfect, traditional all-round building block. Highly resilient, tough, loadbearing blocks suitable for any application. Available in solid, cellular and hollow forms. Exceptionally high performance blocks with the lowest thermal conductivity of any masonry block available in the UK. A wide range of Airtec, Insulite and Dense concrete special products including coursing bricks, concrete...

Airtec Standard Airtec Party Wall Airtec Seven Airtec XL blocks have the lowest thermal conductivity value of any block currently manufactured in the UK, combining exceptionally low weight, good strength and high thermal performance. These weight all-round building block are unique in offering a strength of 3.6N/mm² but with a thermal conductivity value of just 0.11 W/mK. Available only as 100mm thick blocks designed for use in Robust Standard Detail acoustic separating walls and Part E walls. Higher strength aerated blocks intended for use in applications where higher loadbearing capacity or...

Solid Dense Cellular Dense Low density aggregate concrete blocks manufactured using expanded clay products. These blocks are low weight with enhanced thermal properties. Insulite medium density lightweight blocks are a versatile, all-round building block. Available in Standard and ‘Premier’ paint-grade finishes and as solid Armstart foundation blocks. Highly durable and resilient Dense concrete blocks available in Standard and Fairtex paint-grade finishes. They are also available as small format MIDI blocks. Hollow Dense Rockfaced Blocks Ideal for constructing reinforced walls, the hollow voids...

ULTRALITE Low Density Aggregate Blocks Ultralite blocks offer the builder a low-weight, loadbearing block with enhanced thermal properties suitable for a wide range of applications. Ultralite blocks are manufactured from expanded clay aggregates and all sizes weigh less than 20kg. Available in Standard texture only. TECHNICAL PROPERTIES ● Inner & outer leaf of external cavity walls up to 2 storeys. Face Size (BS EN 771-3): Dimensional Tolerance (BS EN 772-16): Mean Compressive Strength (BS EN 772-1): Class 1 Reaction to Fire Available Texture finish: ● Internal partition walls. Standard only...

INSULITE Medium Density Aggregate Blocks Insulite blocks are the perfect all-round building block. They are cost effective, simple to use and provide an ideal background for accepting renders and plasters. Insulite blocks consist of over 90% high quality recycled and reclaimed raw material. They are available in Standard and ‘Premier’ finishes. TECHNICAL PROPERTIES ● Inner & outer leaf of external cavity walls up to 2 storeys. ● Internal partition walls. ● Walls below dpc (7.3 N/mm² or above). Mean Compressive Strength (BS EN 772-1): ● Acoustic separating walls to Part E of the Building Regulations...

Solid Dense Concrete Blocks Dense Concrete blocks are the most durable and resilient block type in our range of products. Perfect for applications requiring high loadbearing capacity, high acoustic performance and unfinished facing applications. Dense blocks are manufactured from high quality Class 2 aggregates and consist of up to 30% recycled raw material. Available in Standard and ‘Fairtex’ fair-faced finishes. TECHNICAL PROPERTIES ● Inner & outer leaf of external cavity walls over 3 storeys. ● Internal partition walls. Mean Compressive Strength (BS EN 772-1): ● Block & beam floor infill....