Question

A rehabilitationwork will be carried out to retrofitseveral columns of a reinforced concrete multi-

storey car park which have exhibited extensive cracking and spalling due to carbonation induced

corrosion. Being in Malaysia, the surrounding temperature is expected to be stable throughout

the year. In order to ensure that loads are distributed equally throughout the area of the affected

columns, the repair area should carry part of the imposed load. Thus, in order to ensure effective

load sharing and durable repair work, the selected repair material should possess certain

important properties. Identify and discuss five (5) of those important properties with appropriate

justificationsfor each one.

Answer 1

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