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Thomas Armstrong
Airtec Brochure

Airtec Brochure

Product catalog summary

Introduction to Airtec
Airtec, introduced by Thomas Armstrong, offers a range of autoclaved aerated concrete (AAC) blocks designed to meet current Building Regulations. These blocks are produced using advanced methods to ensure high quality and resilience, exceeding European standards.

Environmental Considerations
Airtec blocks are environmentally friendly, utilizing recycled materials and minimizing waste. The production process captures and reuses energy, reducing emissions and conserving resources. Their lightweight nature also reduces transportation emissions.

Benefits of Using Airtec
Airtec blocks provide superior thermal and acoustic insulation, are fire-resistant, and easy to handle. They save time and money in construction due to their lightweight and efficient design, complying with various building regulations and modern construction methods.

Product Range
The Airtec range includes wall blocks, foundation blocks, brickettes, and large-format blocks, all exceeding European standards. They are available in various densities and dimensions to suit different construction needs.

Properties & Applications
Suitable for cavity walls, partition walls, and foundation walls, Airtec blocks offer different compressive strengths and thermal conductivities to meet specific building requirements.

Performance
Thermal: Excellent thermal efficiency reduces the need for additional insulation.
Acoustic: Meets acoustic regulations for houses and apartments.
Fire Resistance: Non-combustible, ideal for fire-resistant walls.

Working with Airtec
Easy to cut, drill, and shape, Airtec blocks provide excellent adhesion for mortars and renders and are compatible with various finishes.

Design Details
Guidance on movement control, wall ties, and construction techniques like thin-joint construction is provided.

Site Practice
Recommendations for handling and installation ensure safety and efficiency.

Material Health & Safety
Details on safe handling and use of Airtec products emphasize compliance with health and safety standards.

Specifications
The document outlines technical properties of Airtec block types, including face size, compressive strength, dry density, design thermal conductivity, fire resistance category, and freeze/thaw resistance.

Applications
Airtec blocks are suitable for external cavity or solid walls, loadbearing and non-loadbearing walls, party/separating walls, partition walls, foundation walls below damp proof course (dpc), thin-joint construction, and fire-resistant walls.

Technical Properties
Each block type has specific technical properties, such as compressive strength and thermal conductivity.

Pack Weights and Block Sizes
Information on block thickness, weight, number per pack, weight per pack, and m2 per pack is provided for planning and logistics.

Sound Insulation Requirements
Outlines sound insulation requirements for separating walls and floors in dwellings and residential buildings, specifying minimum airborne sound insulation and maximum impact sound insulation values.

Compliance Methods
Pre-completion Testing (PCT) and Robust Standard Details (RSDs) are primary methods for compliance with sound insulation requirements.

Fire Resistance
Airtec blocks achieve a "CLASS A1" rating for fire resistance, with up to 4 hours of resistance for non-loadbearing walls.

Workability and Construction Tips
Guidelines for cutting, drilling, and fixing Airtec blocks, emphasizing the use of hand tools for cleaner cuts and recommending specific types of fixings.

Mortars and Finishes
Recommendations for mortar mixes and application techniques ensure durability and adherence to standards.

Additional Finishes
Discusses painting and tiling on Airtec block surfaces, recommending specific types of paints and preparation methods.

Specifications and Procedures
For internal tiling, a render mix of 1:5 Cement:Sand is recommended. External tiling can be directly applied using screws and nails.

Dry Lining
The dot & dab method is commonly used for fixing drylining systems to Airtec walls.

Cladding and Boarding
Cladding can be fixed directly to Airtec walls or onto vertical timber battens.

Movement Control
Guidelines suggest dividing Airtec blockwork into 6m panels with vertical movement joints.

Bed Joint Reinforcement
Suitable for areas of high stress, reinforcement should extend at least 600mm into adjacent blockwork.

Wall Ties
Wall ties should be flexible yet stiff enough to transmit loads, conforming to BS standards.

Lintels
Airtec block walls can accommodate various lintels, with construction following BS standards.

Joist Hangers
Compatible with aerated blocks of 3.6N strength and above, joist hangers must be installed as per manufacturer instructions.

Cavity Closing
Design and construction details should maintain thermal integrity and minimize cold-bridging.

Thin Joint Construction
This method uses 2-3mm thick mortar joints, offering benefits like improved thermal insulation and quicker builds.

Tools and Ancillary Components
Tools for Thin Joint construction are widely available, including mortar applicators and specialist wall ties.

Laying Guidelines
The first course must be laid accurately level, with Thin Layer mortar prepared as per manufacturer instructions.

Site Practice and Handling
Airtec blocks are packaged upright, banded, and shrink-wrapped. Care should be taken to minimize mechanical handling.

Safe Handling Guidelines
The Health and Safety Executive recommends a maximum weight of 20kg per block for manual handling.

Setting Out and Block Laying
Airtec blocks are easy to cut and allow flexibility in construction. Recommended mortar mixes should be used.

Material Health and Safety Data
Airtec blocks are non-hazardous but suitable PPE should be worn during handling.

Company Information
Thomas Armstrong (Concrete Blocks) Ltd. operates a facility using advanced aircrete technology, with a sales office in Brompton on Swale.

Catalog excerpts

Contents INTRODUCTION TO AIRTEC Page 1 ENVIRONMENTAL Page 2 WHY USE AIRTEC? Page 3 THE AIRTEC PRODUCT RANGE Page 4 PROPERTIES & APPLICATIONS Page 5 AIRTEC PRODUCT DATASHEETS AIRTEC XL Wa\\ Block Page 6 AIRTEC STANDARD Wa\\ Block Page 7 AIRTEC PARTY WALL Block Page 8 AIRTEC SEVEN Wa\\ Block Page 9 AIRTEC FOUNDATION 140 Block Page 10 AIRTEC FOUNDATION 215 Block Page 11 AIRTEC LARGE FORMAT - Wa\\ Block Page 12 AIRTEC LARGE FORMAT - F\ooring Block Page 13 AIRTEC BRICKETTES {Coursing Units) Page 14 PERFORMANCE - Thermal Overview Page 15 U Value Table - Partial Fi\\ Cavity Wa\\ Page 18 U Value Table...

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1 Introduction to AIRTEC Thomas Armstrong's extensive range of high quality building products is now enhanced by the introduction of our new Airtec range of autoclaved aerated concrete (AAC) blocks. Airtec products are designed to offer effective, practical solutions for the current Building Regulations using the very latest production methods in the UKs most technologicay advanced AAC facility. The high specification of the Airtec range and significant investment in choosing to use the very best materials and technology available demonstrates our ongoing commitment to quality and excellence...

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4 The AIRTEC Product Range A full, comprehensive range of Airtec blocks are offered with various densities, thermal values and dimensions. Thefoundations, block and beam floors and coursbricks. 3re are blocks for walls, sing uAihU A\\ Airtec products are manufactured to the \atest European standards, which by definition means that they exceed the o\d British standards in terms of performance and to\erance. PLEASE REFER TO THE INDIVIDUAL PRODUCT DATASHEETS FOR MORE DETAILED INFORMATION. WALL BLOCKS Airtec wa\\ blocks are manufactured to the traditional coursing height of 215mm and to a \ength...

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5 AIRTEC Products - Properties & Applications TECHNICAL SUMMARY TABLE BLOCK TYPE COMPRESSIVE STRENGTH (minimum) DRY DENSITY (average) DESIGN THERMAL CONDUCTIVITY AIRTEC XL 2.9 N/mm2 460 kg/m3 0.09 W/mK AIRTEC STANDARD 3.6 N/mm2 530 kg/m3 0.11 W/mK AIRTEC PARTY WALL 3.6 N/mm2 600 kg/m3 0.13 W/mK AIRTEC SEVEN 7.3 N/mm2 730 kg/m3 0.17 W/mK Reaction to Fire: Class A1 Drying Shrinkage (max): 0.4 mm/m (as defined in BS EN 771-4 : 2003. This replaces BS 6073-1) Coefficient of Linear Expansion: 8 x 10-6 /K Vapour Resistivity: 50 MNsg-1m-1 Dimensional Tolerance Category: TLMB (Thin Layer Mortar category...

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6 AIRTEC XL Wall Block AIRTEC XL 2.9N blocks have been designed to offer the very best thermal performance of the Airtec product range and as a cost-effective solution to the ever-increasingly stringent requirements of Part L of the Building Regulations. This allows the builder to minimise the amount of secondary insulation required to meet thermal regulations as well as meeting the strength requirements of the very latest UK building codes. An inner leaf of Airtec XL blocks gives the builder the option of using a 75mm cavity, either partiaWy-fiWed or fuWy-fiWed whilst still achieving a U-Value...

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7 AIRTEC STANDARD Wall Block AIRTEC STANDARD 3.6N blocks have been designed to offer the superior thermal performance of Airtec blocks along with the structural capacity for up to 3 storey construction. In fact Airtec Standard blocks offer the same thermal conductivity value of a typical 2.9N strength aerated block. This gives a combination of medium strength and high thermal performance in one block, offering flexible design for single storey and multi-storey build. This product is exceptionally low weight for an aerated block of this size and in this strength category. APPLICATIONS External...

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8 AIRTEC PARTY WALL Block AIRTEC PARTY WALL 3.6N blocks have been designed to offer both the superior thermal performance of Airtec blocks along with a specification suitable for acoustic party/separating walls. Airtec Party Wall blocks can be used in Robust Detail party wall constructions between dweWings and when building in accordance with Part E of the Building Regulations. APPLICATIONS TECHNICAL PROPERTIES Party/Separating Walls to Part E Օ Robust Standard Dtail Party Walls Flanking walls to Party walls 镕 ThinJoint Construction Fire resistant walls Face Size: Compressive Strength (min):...

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9 AIRTEC SEVEN Wall Block AIRTEC SEVEN 7.3N blocks have been designed to offer the highest structural capacity of the Airtec range for construction up to 3 storeys in line with current Building Regulations and Structural Codes. In addition, the low weight of these blocks and ease of handling offer the builder a quick, easy and cost-effective method of construction. The builder also benefits from the superior thermal properties of Airtec products that allows for easier design to meet Part L requirements. APPLICATIONS TECHNICAL PROPERTIES External Cavity or Solid watts Loadbearing and non-loadbearing...

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10 AIRTEC FOUNDATION 140 Block AIRTEC FOUNDATION blocks are designed as a lightweight, speedy and cost effective alternative to traditional cavity foundation walls. A solid Airtec foundation wall of 140mm high blocks built two courses high means a faster build, shallower trenches, less waste material, no need for cavity wall ties, less mortar and eliminates any chance of collapsed cavities. The excellent thermal properties of Airtec Foundation blocks enhance thermal integrity throughout the building especially when used in conjunction with Airtec walls and floors. Hand-holds are provided for...

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11 AIRTEC FOUNDATION 215 Block BBA; AIRTEC FOUNDATION blocks are designed as a lightweight, speedy and cost effective alternative to traditional cavity foundation walls. The 215mm height block is offered as an alternative to our 140mm high type for builders wishing to use conventional coursing height blocks. The excellent thermal properties of Airtec Foundation blocks enhance thermal integrity throughout the building especially when used in conjunction with Airtec walls and floors. Hand-holds are provided for improved ease of handling and safety. APPLICATIONS Solid Foundation Walls below dpc...

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Airtec Brochure

Airtec Brochure

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