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Latest Engineering Articles

Preventing Alkali Silica Reaction (ASR): Identification and Mitigation Strategies for Durable Concrete

Introduction Alkali silica reaction (ASR) is a destructive chemical reaction that occurs within concrete when reactive silica in aggregates reacts with alkali hydroxides in the cement paste’s pore solution, producing an expansive ASR gel that absorbs moisture and generates internal pressures. Preventing alkali silica reaction ASR identification and mitigation strategies

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Carbonation Depths and Rebar Unpassivation Testing and Remediation

Introduction Carbonation depth testing tells you exactly how far atmospheric carbon dioxide has penetrated into your reinforced concrete and whether the embedded steel reinforcement has lost its protective alkaline environment. In concrete structures across Singapore and ASEAN, where high humidity, urban CO₂ concentrations, and marine exposure accelerate this process, measuring

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Underpinning Techniques for Foundations Suffering Differential Settlement

Introduction When a building’s foundation settles unevenly, the resulting distortion can crack walls, jam doors, and compromise the load-bearing capacity of structural members. The primary underpinning techniques for foundations suffering differential settlement are mass concrete underpinning, micropiles (also called mini-piled underpinning), and helical piers. Each method transfers building loads from

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