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A news release announcing the closure stated concrete spalling was discovered in many of the rooms. The cost of repairs as well as the disruption they would ... Residents, employees continue to ...
One of the most notable technological developments in HIP is the Corrosion-Resistant Repair (CRR) Method, which was introduced in 2021 to tackle the persistent issue of spalling concrete, particularly in toilet ceilings. Spalling concrete is caused by the corrosion of steel reinforcement bars within the ceiling, exacerbated by Singapore's humid ...
Repair principles which do not improve the strength or performance of concrete beyond its original (undamaged) condition include replacement and restoration of concrete after spalling and delamination; strengthening to restore structural load-bearing capacity; and increasing resistance to physical or mechanical attack.
Explosive spalling events of refractory concrete can result in serious problems. If an explosive spalling occurs, projectiles of reasonable mass (1–10 kg) can be thrust violently over many metres, which will have safety implications and render the refractory structure unfit for service.
Concrete spalling from the ceiling of an office unit (interior) in Singapore, possibly due to rebar corrosion. Reinforced concrete can fail due to inadequate strength, leading to mechanical failure, or due to a reduction in its durability. Corrosion and freeze/thaw cycles may damage poorly designed or constructed reinforced concrete.
CPP and CPR methods, developed over the last 40 years, are used in lieu of asphalt overlays and bituminous patches to repair roads when longer lasting solutions are desired. When installing pavers over top of an existing asphalt of concrete pad, there are three installation options: sand set, bituminous set, and mortar set. [1]