Whether you are constructing a driveway or patio or starting a landscaping project, one thing you need to consider is choosing a robust construction sub-base. Here is a complete guide that will help you make an informed decision for your upcoming project.
Understanding the Core Meaning of Construction Subbase
Let's first understand the meaning of the subbase. The construction subbase is the material that lies directly underneath the landscaping and constructive sites. There are a variety of subbase options available, and you can choose the subbase that best suits your needs.
Important Things to Consider While Choosing the Construction Subbases
Here is the list of things that you should consider while choosing the construction subbases for your different projects:
Desired Depth
Depending on your project and other purposes, you should start by deciding the desired depth. Then, depending on your intended uses, you can calculate the depth and amount required for the subbase. For patios and garden paths, you can opt for a depth of 75-100 mm. But, for the region of high traffic, you might need a thicker layer of construction subbase ranging between 100–150mm.
Quality
Depending on your project, you should also decide on the quality of the subbase that will fit your requirements. We usually recommend using MOT Type 1 Sub Base Aggregate because of its credibility and durability. Different products are available in the market. However, you should cross-check the quality and consistency of the material.
Permeability Levels
Another important factor that you should consider is the permeability levels of the subbase. It totally depends on the region you are living in. For example, if you are living in an excessively dry area, you can avoid considering permeability. However, in the region of greater flood risks, you should choose an impermeable subbase material.
Weather Resistance
Lastly, you should consider the consistency and longevity of the subbase layer. Whatever you choose, ensure that it can withstand weather extremes, including frost, rain, and heavy sun. The subbase's durability protects it from extremes. For example, you must consider building a well-constructed subbase that fits your region's land and protects your building against weather extremes.
Different Types of Subbase Aggregates
Once you have analysed all the above factors, you can definitely decide the aggregates you want for your purpose. Here is the list of options available in the market:
MOT Type 1 Sub Base Aggregate
One of the most common construction subbases used in constructive projects is MOT Type 1 Aggregate. It is made from recycled aggregates. Due to its complaint with the Department of Transport Specification for Highway Works, it is also known as DOT Type 1. MOT Type 1 is made up of crushed material like rubble, limestone, gritstone, concrete, and brick. It is one of the best-fitted options for constructing roads, driveways, patios, and other projects. It is laid at a depth of 150 mm. The best part of MOT Type 1 is that it reflects amazing thermal properties and can even bear excessive stress fluctuations.
MOT Type 2 Sub Base Aggregate
Another subbase you can use for construction is MOT Type 2. It is quite similar to MOT Type 1. The only difference is that it is a bit expensive and is used for projects where a substantial base layer is required. Compared to MOT 1, MOT 2 aggregates have fine texture. The purpose of the aggregates decides the depth of the layer. The Type 2 aggregates can be used to fill potholes and also for construction purposes such as pathways, walkways, and commercial purposes.
MOT Type 3 Sub Base Aggregate
Quite similar to Type 2, the Type 3 subbase consists of pure basalt, limestone, or Granite. Typically, the sub-aggregate consists of 40-75 mm-sized particles. It is majorly used in driveways, patios, and other regions facing lighter traffic. The permeability of the aggregates defines its versatility.
Crushed Miscellaneous Base
CMB, or crushed miscellaneous base, is made from recycled concrete or recycled asphalt combined with sand. It can be used as a sublayer, driveway, or parking lot. The particles typically range up to ¾ of an inch in size.
Decomposed Granite Crushes
Apart from the ready-made mixes, many individuals also prefer crushed stones to add base layers to their DIY landscaping needs. Decomposed Granite, often referred to as DG, is one such common subbase that consists of gravel, sand, and clay particles. The benefits of decomposed Granite are that it is more permeable and can produce a relatively smoother finish.
Grano Dust
If you are planning to create a high-compact surface, you can use Grano Dust as the subbase. The fine crushed aggregate is used for construction and landscaping. Grano dust's versatility and functionality make it perfect for base layers, drainage, and other purposes.
Concrete Mixes
One durable and offbeat option is concrete mixes. Concrete mixes are ready-to-use combinations of cement, water, and aggregates that can be used as base layers for different landscaping purposes. The best part of using it is that it comes in the ready-to-use mixture that comes with the right proportion. All you need to do is add the right proportion of water to ensure consistency in the subbase.
Understanding the Cost Factors of Subbases
The cost and pricing depend on a lot of factors, such as brand, aggregate types, and quantity of the subbase you are buying. For example, the cost of concrete mixes starts from £67.20. On the other hand, the cost of MOT Type 1 Sub Base Aggregate starts from £58.98. In major terms, the cost of the subbase depends on the quantity of aggregates. You can always use an aggregate quantity calculator to get a rough estimate of cost.
Brisks- Your One-Stop Destination For Construction Subbases
Are you planning to buy premium-quality construction subbases for your next landscaping project? Trust Brisks as your reliable solution. At Brisks, you can find a range of options available at an affordable price. And do you know what's the best part? You can even order a sample of the quality before placing a bulk order. All you need to do is understand your requirements first to make an informed decision.