What Is The Difference Between Type1 And Type 2 Aggregate?

by | Last updated on January 24, 2024

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Our Type 2 is a crushed aggregate with extra dusts and fines, which makes the perfect sub base for a range of domestic and commercial construction projects. Graded to

50mm down

to dust and fines no specified grading, it is finer than our MOT Type 1 sub base, as it is composed of fewer larger angular scalpings.

What is Type1 material?

Type 1 Sub Base is generally

a 40mm graded to dust material that is laid and compacted to

form a level stable construction layer as a platform for asphalt or concrete. It is typically used in the construction of highways, car parks, footways and hard standing areas.

What is type1 sand?

MOT Type 1 is simply

a crushed limestone

that has met the requirements of the Department of Transport’s specification for highway works. However, MOT Type1 is a popular product as a sub-base (hardcore) when laying patios and driveways due to its solidity.

What is Type 1 gravel used for?

Mot Type 1 limestone is sized from 40mm down to dust and is mainly used as

a bulk fill, a levelling material and as a sub-base for paths, ponds, drives, sheds, patios and construction jobs

. When levelled out a weed membrane can be added and then topped off with one of our more attractive gravels.

What is the difference between Type1 and type 3 stone?

Type 1 Crushed Concrete – 50mm down to dust. Best used as a sub-base for roads, underneath blocks, as well as layering in between concrete or tarmac and as a hard core for projects such as car parks. … Type 3

Crushed Concrete – 0-63mm reduced fines

. Oversized Clean Crushed Concrete – 75mm-100mm (no fines)

What is type1 aggregate?

Ballast, gravel and hardcore

MOT Type 1 (hardcore) is

crushed carboniferous limestone

, used to create a hardcore base under patios, paving, driveways and artificial grass. It can also be used as a filling product. Local shingle is a cost-effective shingle, ideal for many uses from paths to driveways and borders.

How much is type1 compact?

However, as avery, very, VERY general rule, we look for compaction of around 30% with most Type 1 aggregates. So, 130mm will probably compact to 100mm;

195mm will most likely compact to 150mm

.

Should I use sharp sand or builders sand?

Differences between sharp sand and building sand

Having a larger grain size means sharp sand is slightly heavier, giving the mortar more strength yet making it less flexible to work with. Most people use

sharp sand over builders sand

for floor screeds, fine concrete work and laying paving courses.

Is crush and run type 1?


There is no specification for crusher run

and therefore it differs from Type 1 in both particle size and frost susceptibility.

How thick should type 1 be?

It is usual to lay MOT Type 1 at a

compacted depth of 100mm for most patio projects

and at a compacted depth of 150mm for most domestic driveways. Compaction should be achieved using a wacka plate. MOT Type 1 is used to stabilise the ground prior to laying paving and also allows for drainage.

What area will a ton of Type 1 cover?

1 tonne or 1000kg of MOT type 1 stone aggregate will cover

approximately 10 square meters to a depth of

2 inch (50mm) after stone has been compacted using a vibrating roller or compactor plate.

Can you use Type 1 concrete?

Type 1 is

a grading not a specific material

. It may be limestone, granite, crushed concrete etc dependent on where you are. As Kiab says its a bit rough for concrete but you’re not going to expose it and you could always mix a bit of sand cement to top up your bed so you can level your blocks easily. Go for it.

What is Type 3 material?

Type 3 Sub-base.

Pure crushed granite, limestone or clean crushed concrete

. A 40mm product that has been screened to create a reduced fines aggregate. This product is fully certified according to the Specification for Highway Works.

What size is Type 3 aggregate?

In very general terms, Type 3 is an open graded crushed aggregate roughly

in the range 40mm to dust

.

What size is type 3 stone?

It is a pure crushed stone, ranging in size

from 40mm down

to dust with a higher percentage of larger sized aggregate, but with a reduced (not zero) fines content. Type 3 is a sub-base similar to MOT Type 1 but with reduced fines to allow water to free drain as a permeable sub base.

What is the best sub-base for drainage?


Use Granite or Limestone Chippings

if You Have Pets or Drainage Issues. Due to its inherent drainage capabilities, if you have pets or existing drainage issues in your garden, we would highly recommend that you use granite or limestone chippings as a sub-base material.

David Martineau
Author
David Martineau
David is an interior designer and home improvement expert. With a degree in architecture, David has worked on various renovation projects and has written for several home and garden publications. David's expertise in decorating, renovation, and repair will help you create your dream home.