Structural resin injection technologies for ground compaction, void filling and re-levelling buildings and other on-ground structures.

Mainmark’s advanced Teretek resin solution is a multi-component mixture of structural geopolymer resin and hardener.

Mainmark has used expansive resins for over 30 years worldwide for raising, re-levelling, re-supporting and strengthening moving and sunken structures on or in the ground. Our proprietary Teretek engineered resin injection solution was developed in Australasia and builds on Mainmark’s record of success. It brings together fast reaction times, coupled with long service life.

Resin injection to raise, re-level and re-support a house

Teretek raises, re-supports, and re-levels sunken home foundations fast, economically, and with a minimum of disruption to occupants. Compared to traditional concrete underpinning methods, underpinning with Teretek means building footings are raised and returned to correct levels rapidly, in a controlled environment.

Teretek resins are injected through small tubes into the ground beneath the footings. On entering the ground, the components mix together and expand by chemical reaction. The expansion force fills any voids that are present, aggressively chasing into any cracks or crevices in the soil, filling them tightly. The expanding resins also compact any ground that is at all weak. That action provides the structure above with renewed support.

If raising and re-levelling is required, the injection is continued, with the expansion acting upwards to bring the structure to its required level. Underpinning with resin injection is tightly-controlled with constant monitoring by laser level or similar means. Wherever possible, the injection is done from outside the building or house through 16 mm diameter tubes. When injection must be done from indoors, it is done through tubes of only 6mm diameter placed as inconspicuously as possible. This way there is minimal intrusion into the property and minimal interruption to the occupants. The process is extremely rapid: most house rectification takes less than a day and hardly ever takes more than two days. our method involves no demolition, no excavation, no water, and very little or no mess.

Re-level and re-support industrial buildings, floors and driveways

Factory and warehouse buildings, floors and driveways may all develop problems due to loss of ground support. Most subsidence problems can be fixed quickly and economically with Teretek resin injection with minimal interruption to your production schedule. The process is fast and clean: no excavation, no water, no cement dust, no mess: unlike concrete underpinning. You don’t have to wait days for new cement to dry and to cure. Your forklifts, pallet jacks, and trucks can operate over the area just 30 minutes after we finish the injection. Moving and sunken slabs and floors can usually be re-supported, re-levelled, and saved, unless too badly cracked. In a complex situation our experienced technical people can advise you about what can be saved and what should be replaced.

Teretek structural expanding resin can re-level sunken slabs and re-support moving slabs in driveways, parking areas, garages, hardstand areas, and loading docks quickly, accurately and economically. With underpinning by resin injection, it generally takes only a few hours to level driveways, loading docks, hardstand areas and parking areas. Even the heaviest vehicles – forklifts, trucks and airliners – can run smoothly just 30 minutes after foam underpinning is completed. There is minimal interruption to traffic or production flow.

Teretek injection to compact and strengthen deeper ground

Teretek injection is a process where structural foam fillers are injected via long 16mm diameter tubes to various depths where bore logs have identified weak strata in the ground. In certain ground conditions the bearing capacity of the ground can be increased this way by up to 500%.

Our technology can also assist in liquefaction mitigation by densifying foundation ground. The pressure of the expanding resin compresses the surrounding soil until it can no longer be resisted by the counter-force of the structure and soil mass above, and the friction angle of the soil. The deep soil injection procedure can release controlled forces of up to 10,000kPa.



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Mainmark Malaysia
Mainmark Ground Engineering Sdn. Bhd.
Petaling Jaya

 MY: +60 3 7804 3188

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