Concrete

Introduction Concrete carbonation is the natural process where carbon dioxide penetrates hydrated cement and neutralizes the alkaline environment. This change can influence how rebar corrodes and how the surface holds up. In plain terms, it’s the carbonation front moving inward and changing the chemistry you relied on for durability. The mechanism involves CO2 diffusing through […]

Introduction Blisters and delamination are weak, separated patches on the top layer of cured concrete. They happen when moisture, trapped air, or improper finishing create gaps under the surface. As a DIYer, you want to catch the signs early and fix the surface before it gets worse. Signs include raised areas, hollow sounds when tapped,

Introduction Alkali-silica reaction (ASR) is a concrete deterioration mechanism that can cause expansion and cracking. Map cracking, damp areas, deposits, or spalling can justify concern, but none of them confirms ASR on its own. Confirmation requires a field investigation combined with appropriate laboratory work, commonly including petrographic examination of concrete cores. Do not treat suspected