Case Study: Rehabilitation of Asseyedah Fatimah Mosque

Constructed 20 years ago, the reinforced concrete structure had severely deteriorated as a result of reinforcing steel corrosion in a highly aggressive environment

Independent assessments had been carried out to determine the extent of the corrosion process, and results showed a high risk of further deterioration that could lead to the collapse of a very important structure within Saudi Arabia

The structure had been rehabilitated on various occasions with traditional methods - all failing to provide adequate solutions to the corrosion issue

Fosroc Saudi Arabia was contracted to understand the problem and provide a comprehensive corrosion solution guaranteeing performance and durability to the structure

Fosroc Corrosion Solutions (FCS) technology was endorsed by the client as the right solution for the corrosion problem

The solution was designed to prevent future corrosion potentials and in turn, eliminate the need for future maintenance

A total of 4,800 units of Fosroc Galvashield CC65 were utilised as corrosion control for embedded steel reinforcement at non-deteriorated concrete piles but with high potential for corrosion

More than 3,000 units of Fosroc Galvashield XP system were utilised as the corrosion prevention for all deteriorated areas of the reinforced concrete elements, including beams, slabs and pile caps

A total of 46 tonnes of Fosroc Renderoc LA, 11 tonnes of Fosroc Renderoc TG and 5,000 litres of Fosroc Nitocote EP405 were utilized for complete concrete rehabilitation works

The rehabilitation works were designed to provide corrosion protection for a period of 15 years, hence reducing the need for frequent maintenance

The solution was implemented within a rapid time frame and the Mosque was re-opened after several months