Rosscommon Bridge

VERTICAL GROUTING

Product used:

epidermix 395

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PROJECT LOCATION
Bergvliet, Cape Town

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SIZE OF PROJECT
40 litres

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Vertical grouting of rebar into concrete, for the installation of concrete handrails on bridges.

Product specified: epidermix® 395 is a liquid epoxy grouting compound either as supplied or converted into a mortar for fixing starter bars, bolts and other similar items vertically down into concrete or rock. Can also be used as a flowable grout or bedding for areas of awkward access or as a fast-setting crack repairing compound.

Advantages include: Stronger than surrounding concrete and steel; Easy pouring for upstanding bolts and concrete road/slab cracks; Easy access to narrow gap horizontal areas.

Regarding the diameter ratio of hole to rod, it has been shown that the ultimate average bond strength is at its maximum at a ratio of 1,3:1. Ultimate average bond stress reduces as the hole:rod ratio increases to a value of 1,67:1. Thereafter, it remains constant. An increase of diameter ratio from 1,3 to 1,67 will reduce the ultimate average bond strength by some 20%. Compressive strength @ 25 °C: Unfilled is 75 MPa cured at 7 days.

Testing was completed by the project applicator and engineer comparing epidermix® 395 with similar products from competitors. epidermix® 395 performed best with no failure at 8 tons compared to two competitor solutions.