抄録
The carbonation evaluation method for AAC (Autoclaved Aerated Concrete) was investigated. Cracking, panel bending property, compressive strength and carbonation degree were investigated for field AAC panels aged 4 to 33 years. When the carbonation degree was above 50%, the AAC panels showed cracking and degradation in panel bending property and compressive strength. Therefore, we propose the carbonation evaluation method as follows ; The AAC panel, whose carbonation degree is above 50%, is deteriorated'. With this criteria, surface finished AAC is 1.5 times more durable in carbonation than non-finished AAC. And also, water-repellent AAC has twice as durable in carbonation as normal AAC.
