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Category: Aggregate

HiQA now offering Los Angeles Abrasion (LAA) Testing

Testing Name: AS 1141.23 Los Angeles Abrasion (LAA) Test Description: HiQA Geotechnical (Darwin) is proud to announce that AS 1141.23 Los Angeles Abrasion Test has been added to the Scope of Accreditation assessed by NATA. The test determines the loss on abrasion of aggregate particles by means of the Los Angeles Abrasion Testing Machine. The […]

Keep River Return

We recently ramped up at our Keep River Annex facility after a brief pause in construction over the wet season.  Our team, lead be James Action, headed back to site last month to complete stage one of testing fill and base course layers on the Keep River bridge.  Stage two consists of sealing the remaining […]

Civil Contractors Federation NT (CCFNT) Laboratory Open Day

On the 7th of February HiQA Geotechnical and the Civil Contractors Federation NT (CCFNT) hosted a Laboratory Open Day for all CCF members in Darwin. This was a collaboration designed to assist the civil construction industry in understanding the art of construction materials testing. Attendees were given demonstrations in a range of laboratory testing, from […]

Northern Gas Pipeline (NGP) Update from HiQA

HiQA have been busy at our newest laboratory in Tennant Creek undertaking predominantly concrete testing at this stage for the Northern Gas Pipeline project. The 622km pipeline will link Tennant Creek in the Northern Territory to Mount Isa in Queensland. Construction of the $800 million project began in July 2017 and the first gas is […]

Why do Laboratories take a minimum of 5 sample increments for Aggregate samples?

The reason is standard driven (AS 1141) primarily but it does ensure that samples obtained by the laboratory are representative to the larger body of material on site. Care still needs to be taken in the sampling process though as an ill-considered sampling plan may still miss represent the material on site, on matter how […]