Hixtra Ltd 
Construction & Geotechnical Testing 

Type 1 Subbase Testing 

Testing to assess the compliance of Type 1 subbase against Highways England specification 
Type 1 subbase is one of the most common materials used in pavement and road construction. It has a specific constitution and to ensure you obtain the benefit of these it is important that the material complies with several mechanical, physical and chemical properties. 
At Hixtra we can test for the full suite of properties including particle size, abrasion, soundness, sulphate levels, plasticity and frost heave. 
Recycled Type 1 
This has additional test requirements which we can provide including assessing its constituent particles 
Sampled from anywhere in the UK 
The sample is critical to a representative test result so we can do the sampling for you. 
Cases of dispute 
We can also sample from existing laid material to assess it compliance 
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