Name: Mohammad Shazuan Bin Azamy
Metric No: BK10110161
Topic: Assessment Study on AlkaliSilica Reaction (ASR) Cracking of Buildings in UMS
Abstract: This research is to assess UMS building that suspected to having cracks that cause by AlkaliSilica Reaction (ASR). Usually ASR occurs when concrete pore water, some aggregate constituents, and alkali cations (NA and K) released by the cement react with one another. As the alkali content of the pore water increases, dissolution of the silica phases increases, resulting in a release of silica to form the gel. Gel formation results in a volume increase, which causes internal pressure in the concrete and eventually forms fractures. Two chemicals testing are used on this study in order to confirm that cracking in UMS building are caused by ASR. The chemical testers are Potassium Permanganate and Rhodamine B. After been confirmed by chemical testing and its found that the cracks are positively ASR, structure performance for the building will be evaluated next using Rebound Hammer and Ultrasonic Pulse Velocity (UPV). Result for this study indicates that assessed buildings in UMS that is ODEC, SPPS and SKTM are affected by ASR.