Design considerations of Cantilever Masonry Walls

Cantilever walls are a common solution used to retain soil or similar earth material, playing a vital role in sustaining the structural integrity of a site and or project. While the design is important, several practical factors must be considered when designing a retaining wall using a cantilever block system.

Design considerations for a cantilever wall are important with calculations of the pressures exerted at any point of a wall being influenced by various factors. The height of the water table, the nature and type of soil, the subsoil water movements, type of wall being constructed and the materials used in the construction of the wall, can all have an impact on the stability of a structure.

Inadequate design and consideration of such factors can result in the failure of a wall system either immediately or after some time. Such failures can include a wall moving into a sloping position, a wall exhibiting a curve on its surface, a crack appearing or the complete wall collapsing. It is recommended to have a builder or engineer advise on the correct methods of preparation and installation.

At Baines Masonry, our cantilever block systems deliver the structural integrity required to secure a project while providing an aesthetically pleasing design to suit any style. With a range of supplementary SRW products available, including geofabrics and other soil containing solutions, we provide a ‘one-stop-shop solution’ for your retaining wall needs.

To learn more about our cantilever block and SRW Products range, contact one of our industry experts.

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Benefits of light weight Masonry Blocks

While new wall systems become available as innovation and design evolve, it is often the proven construction systems that are best for effective and efficient construction. Baines Masonry’s BETTA BLOCK™ is one such block system providing environmental, structural, aesthetic and economic benefits.

The Baines Masonry BETTA BLOCK™ is made of 65% heavy industry by-products, reducing the amount of landfill generated from coal fired power stations and steel making industry. It uses 40% less cement then normally required with the addition of Discrete Super Fly Ash, resulting in 40% less CO2 emissions and up to a 45% lower carbon footprint than other masonry products

The BETTA BLOCK™ is a structurally sound option for building any project, ensuring longevity not only in design but in use. While the BETTA BLOCK™ light they remain strong with a compressive strength of more than 15MPa, complying with Australian Standards AS/NZS 4455.

The BETTA BLOCK™ “H” Block has a dry weight of less than 10.5Kg, making it the lightest full block available in the range. A lighter block means more product per load, reducing the transport impact on the environment and reducing freight costs. Its light weight also reduces injury risks and OH&S claims, ensuring a safer working environment with happier and more productive employees, adding to a cycle of further economic benefits.

The BETTA BLOCK™ provides an industrial but modern design aesthetic which is easily mixed and complemented by contrasting materials, such as timber, stone and metals. It provides an opportunity to use a variety of different colours, or keeping to a monochromatic tone. With options to cover with insitue stone or rendering the design possibilities are endless!

For more information on our BETTA BLOCK™ range and how our lightweight products can save you money, contact one of our industry experts!

  

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Sustainability with Baines Masonry Blocks

Using masonry blocks for the construction of your next project is a sustainable choice with several environmental benefits over other solutions in the market.

The material, a combination of concrete and aggregates, creates a low maintenance product which lasts longer. This not only reduces the environmental impact of producing more material, but also provides more financial value as replacement products are not needed. At Baines Masonry, our blocks are made from recycled material further enhancing it sustainable properties.

Masonry Blocks can also reduce the energy consumption of residents of a building, as the structure is able to sustain its temperatures for longer, providing insulation during the cooler and warmer months. The consistent temperatures lowers energy costs by moving peak loads to non-peak hours due to the longer hours of sustained temperature, while ensuring the comfort of those inside.

Due to the ease of movement of masonry blocks and their size, the construction requirements for masonry blocks are kept to low. Without the need for large equipment the impact on the environment is lower than other products on the market.

Not only are our masonry blocks sustainable, we at Baines Masonry have considered what is best for the environment in all aspects of our business. Our production facility at Appin, south of Sydney, has been configured to lower embodied energy, reduce greenhouse gases, increase recycling, eliminate water pollution, and preserve local fauna and flora.

To find out more about our masonry blocks and how they can transform your next project while also providing a sustainable solution, contact one our masonry experts today!

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Product Focus - Fire & Acoustic Masonry Blocks

Baines Masonry currently offers two types of concrete blocks that are recommended where specific fire and acoustic performance is required; the Betta Block and Dense Weight units. The material composition and specific unit dimensions have been optimised, tested and assessed by leading organisations around Australia in order to provide exceptional fire and acoustic performances.

Baines Masonry products are suitable for use in load bearing and non-load bearing walls for all types of buildings. Both types are available in various sizes, including 100mm, 150mm, 200mm and 300mm series blocks, and are suitable for core filled and non-core filled applications.

Their light grey cement-like colour makes them a great block for an industrial look, when kept bear, or can be rendered to suit your design.

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Stage One: Greenwich House

When building a home with an extensive number of building materials available, the choice is critical to ensure not only your house is built structurally sound but also to an aesthetically pleasing design. This is something the owners of this home in Greenwich are conscious of.When designing this project the Baines Masonry block range was an easy solution.    ... Read more

Product Focus – NatureStone® Retaining Wall System

Designing a retaining wall that is both functional and aesthetically pleasing can be difficult. Our NatureStone® Retaining Wall System is constructed with a natural stone, in either a rock or smooth finish, making it the perfect wall against the Australian Landscape while being structurally sound.

A part of the BelleStone™ range of products, the NatureSone® Retaining Wall System is easy to lay and reinforce, cost effective and provides a complete system for a wall project, inclusive of wall blocks, capping, corner returns and sills.It uses the ‘Hendrick’ patented system of adhering natural stone to structural masonry blocks. The system uses high strength, purpose neutral-cure adhesive, and 316 marine grade pins, fixed mechanically to the top and bottom of the masonry block. These elements insure each unit’s integrity.

Construction and engineering of the NatureStone® block using this method enables builders to gain an advantage when building their projects. The lighter weight of the blocks better enables tradesman when block laying, making it an easier and quicker process. The design of the blocks gives engineers the ability to use standard design tables, while also ensuring the project is to standard with AS3700 and BCA compliance. The system also has ecological and sustainable development benefits as the Betta Blocks used are created using recycled materials and less concrete.

To visualise your project using the NatureStone® Retaining Wall System, use our New Masonry Designer Software!

To discuss the benefits of NatureStone or any of our other masonry products talk to one of our experts.

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Fire and Acoustic performance with Baines Masonry

The Australian residential landscape has evolved over the last few years with many Australians choosing to live in multi-residential housing and adopting inner-city lifestyles in the suburbs. This trend has created a complex task for designers, contractors and workers involved in the design and construction of such projects where the risks and regulations have increased. The need to provide the best-performing products can determine ones success, especially when meeting the fire and acoustic requirements of the Building Code of Australia (BCA). Baines Masonry are experts with fire and acoustic with their range of blocks and newly designed Fire and Acoustic Calculator.

About Fire resistance performance

The fire resistance performance of a masonry wall is considered with regards to three characteristics; structural adequacy, integrity & insulation. Each characteristic is expressed in terms of the number of minutes that the wall can resist a particular fire intensity defined by AS 1530.4-2005. For example a fire resistance level (FRL) of 180/120/120 implies 180 minutes of resistance for structural adequacy, 120 minutes of resistance for integrity and 120 minutes of resistance for insulation. Each characteristic is defined by AS 1530.4-2005 as follows:

1.Structural adequacy:The ability of a load-bearing element of construction to support a load when tested in accordance with AS 1530.4-2005.

2.Integrity:The ability of an element of construction to resist the passage of flames and hot gases from one space to another, when tested in accordance with AS 1530.4-2005.

3.Insulation:The ability of an element of construction to maintain a temperature on the surface that is not exposed to the furnace, below the limits specified, when tested in accordance with AS 1530.4-2005.

When a wall is in a non-load bearing situation, the FRL for structural adequacy is stated as a dash, e.g. -/120/120

About Acoustic Performance

Where necessary, the acoustic performance of a wall must be considered in order to safeguard the occupants of a part of a building from illness or loss of comfort.

The two main aspects of consideration in regards to acoustic performance are airborne sound and impact generated sound.

Airborne sound is commonly measured by playing a series of differing frequency sounds on one side of a wall and measuring the sound loss on the other side. It is stated in terms of a weighted sound index (Rw), the higher the index value, the higher the element prevents the transmission of the sound. An adjustment factor is typically associated with the weighted sound index which is called the spectrum adaption term (Ctr) which accounts for low frequency noise. This adjustment factor is always a negative number and is added to the weighted sound index to give a combined value lower than Rw. For example, an Rw of 53 with a Ctr of -6 gives an Rw + Ctr of 47. These values are typically obtained from testing in accordance with AS/NZS 1276.1 or ISO 717.

Baines Fire and Acoustic performing blocks

Baines Masonry currently offer two types of concrete blocks that are recommended where specific fire and acoustic performance is required. These are Betta Block units and Dense Weight units. Both types are available in various unit sizes and are suitable for core filled and non-core filled applications.Baines Masonry products are suitable for use in load bearing and non-load bearing walls for all types of buildings. The material composition and specific unit dimensions have been optimised, tested and assessed by leading organisations around Australia in order to provide exceptional fire and acoustic performances.

Baines Masonry have undertaken extensive non-load bearing fire testing of the Betta Block product range with CSIRO in North Sydney, NSW. The acoustic performance of internal Baines Masonry walls have been assessed by a leading Australian acoustic firm. The results of each are outlined in the ‘Fire & Acoustic Technical Manual for Load Bearing & Non-load Bearing Walls’.

Baines Masonry Fire and Acoustic Calculator

Through their extensive knowledge and expertise in masonry, the team at Baines Masonry have devised a new Fire and Acoustic calculator to take the headache out of specification. This simple web-based tools has been specifically designed to address concerns surrounding compliance, fire protection, and insulation, the Fire & Acoustic Calculator makes selection of the correct product and compliance with the BCA easier than ever. The simple tool takes the guesswork out of specification and gives designers and specifiers the peace of mind that they are fully complying with industry requirements and significantly reducing their exposure to liability.

To use the tool, designers and specifiers simply enter a few simple design parameters that include the required wall type, installation environment, acoustic and fire insulation requirements, and the relevant BCA requirement. The Calculator then instantly provides a tailored shortlist of Baines Masonry products that meet the specified parameters. The shortlist is also provided in printable PDF format, allowing the designer or specifier to retain a hard copy for reference or insertion into tender documents.

To try it click here!

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Product Focus - Grey Betta Blocks™

Baines make a full range of concrete grey blocks using Betta Block technology to satisfy the requirements of both residential and commercial projects. Our commitment, ‘Quality First’, is your guarantee that you can order grey blocks from Baines with confidence.  ... Read more

Masonry Blocks are first out of the gates again with two awards!


 
Address 900 Wilton Road Appin NSW 2560
 
Phone Number (02) 4631 1383
 
Fax (02) 4631 1402

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