Advanced Waterproofing profile

Advanced Waterproofing is a family owned company which is based in Wollongong NSW.

The company director is Derek Gater. Derek has 24 years experience in the building industry and has specialised in waterproofing for the last 6 years.

Advanced Waterproofing was set up in January 1998 as a two-man operation, but has grown rapidly and now employs nine people.

With back ground qualifications in the mechanical, painting, bricklaying, shot-creting and concreting trades, and wide experience in the building industry, the Advanced waterproofing team combines a range of skills that give the company a broad expertise.

Members of the team are also trained in different specialty areas of the pressure grouting and concrete repair industry such as anchor bolting, culvert repair work, spalling concrete and general grouting works.

In addition, relevant industry training and tickets in scaffolding, dog-mens and crane chasing, as well as certificates in confined space work, OH,S and track safety awareness, give Advanced Waterproofing the versatility to meet a wide range of work situations from the domestic to industrial and major engineering settings.

The range of works carried out include simple waterproofing membrane applications, joint sealing, spalling concrete repairs, cementiuos grouting, polyurethane and Hydrogel pressure grouting and complete culvert re-sleeving and grouting works.

During these various works, Advanced Waterproofing has been able to establish a good business relationship with all our clients. The flow on benefit to new clients is that we now have contacts in a wide range of human and technical resource areas. This puts us in a position of being able to offer clients a comprehensive package that will meet their needs whatever the job.

Transfield Bouygues Joint Venture Air Port Link
BHP Cataract River Resealing
RSA Yerrinbool culvert remediations work
Domarton works - Chainage 96km
Sydney Opera House

Advanced Waterproofing was commissioned to rectify all nominated water leaks between Tempie and Sydney central station. The works completed by Advanced allowed the Soft ground Tunnel section to achieve dry to dry, which has never been done through out the world in this type of tunneling.

Using the Polyurethane and Hydrogel pressure grouting system we carried out the works by drilling into the segments and grouting from behind. This allowed us to isolate the point of failure using the Polyurethane, then stopping the leak utilizing the Reactive Hydrogel Range of products Supplied by BBZ Australia.

The hard rock tunnel section provided some challenges due to the low compaction of the shot-crete.

Typical crack injection procedures also had to be altered. The shotcrete had been applied over a Nylex strip drain system, meaning that we could only pressure grout in isolation and try to pin point and rectify the exact point of failure and not all potential points of failure.

These works were carried out in stages using two to four man crews working mostly at night utilizing the TBJV loco's or supplied high rail trucks with cherry pickers mounted on top. Our work on the project ran for approximately 18 months

This job required us to design a method of grouting several rock platforms at varying depths down to 8 metres and as shallow as 1.5 metres, and over an area of 40 metres long by 2 metres wide.

This job had a couple of difficult factors that required slightly out of the ordinary approaches to overcome the problems. One main factor being how do we get everyone and their equipment to site quickly and safely when the only access is by foot. The other factors being equally important are how do we control the grout from just simply washing out or being lost in the sub-terrain strata.

The otherproblems were over come by special mix designs developed by Advanced Waterproofing for this project. (This design has proven to be an economical solution to many projects since)

The grouting works went to plan and consumed some 40 tonnes of cement and 3200 litres of the mixed BBZ hydrogel. [Without any environmental impact to the area] On completing the grouting works several bore holes where sunk. A small camera was sent down to prove the filling of the void.

Studies where done on the existing brick culvert. It was found that heavy rail movement over time had put stress on the structure causing specific brick sections to be crushed thus weakening the brick arched culvert.

Our task was to insert approx. 2 metre Diameter helical pipe at a length of 52 metres, followed by pumping 60 m3 of concrete to fill the remaining void.

The site was located amongst farming land with the culvert some 18 metres down an embankment hidden by trees.

The culverts where craned down in sections and slid into position, aligned and locked down.

The Dombarton site when inspected was over grown with shrubs and lantana and required the re grading off the surrounding catchment area to minimize the ingress of water through the embankment.

Advanced Waterproofing worked on the repairs of the twin culverts. The works involved the cleaning of the existing pipe joints and the preparation of the failed cracked pipe sections.

The repairs were carried out using a semi flexible grout material in the joints and cracks.

We were also required to re-sleeve and re-grout sections of the culverts. This was done by installing grouting points around the areas of failure, and by pumping the voids and filling them with a construction grout mix.

The section that required re-sleeving, we used a 800mm helical pipe 6 metres long, and by sliding the section down the existing pipe we then had to form up both ends and fill the surrounding void with grout.

The work at the opera house has been carried out over several years. We previously carried out these works [prior to the forming of Advanced Waterproofing,] with another company who've since shut their waterproofing section.

Advanced Waterproofing has since completed further works to the lower concourse area as recently as September of 1999.

The works carried out, was a standard crack injection system using the BBZ range of Hydrogels.