Question 1

What is select fill used for?

Accepted Answer

Building platforms beneath slabs, road and pavement sub-grades, hardstands, access roads, shed and warehouse pads and bulk earthworks where a controlled, compactable material is required.

Question 2

What is the difference between select fill and general fill?

Accepted Answer

Select fill is chosen and screened to meet a specification for grading and compaction behaviour so it can be placed as controlled fill and tested. General fill is unspecified material used where no engineering performance is required.

Question 3

Does select fill need to be compacted and tested?

Accepted Answer

For structural applications, yes. It is placed in layers and compacted to a density set by the project engineer, and verified by field density testing. Earthworks are commonly carried out with reference to AS 3798.

Question 4

How much select fill do I need for a house pad?

Accepted Answer

Volume is the area of the pad multiplied by the depth of fill, with an allowance for compaction. The required depth and layer thickness are set by the engineer. Contact us with the dimensions and we can advise on tonnage.

Question 5

Is select fill free draining?

Accepted Answer

Yes. It is a granular material and does not retain water in the way clay fill does, which reduces the risk of loss of strength when wet.

Question 6

Where do you deliver select fill?

Accepted Answer

Across South East Queensland from Talgai, including Warwick, Toowoomba, Ipswich, Dalby, Brisbane and the Gold Coast.

Question 7

Can select fill be used under a concrete slab?

Accepted Answer

Yes. It is commonly used to build the platform beneath residential and industrial slabs, placed and compacted to the engineer’s specification.

Question 8

Is select fill the same as road base?

Accepted Answer

No. Road base is a crushed rock product graded for pavement layers. Select fill is a granular fill for platforms and sub-grades beneath the pavement.

Question 9

What testing is done on controlled fill?

Accepted Answer

Field density testing of each compacted layer against the maximum dry density from laboratory testing, at the frequency and supervision level set out for the project, commonly with reference to AS 3798.

Select Fill

About this product

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Specifications

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