Biological Activities on Geopolymeric and Ordinary Concretes

The primary purpose of the review is to describe biological growth and its effects on goepolymeric ordinary concrete surfaces. As ages, surface alkalinity wears off by carbonation weathering,thus prepares a suitable environment for growth. Micro-organisms such as algae, fungi various types bacteria start accumulate subsequently penetrate into micro-cracks structures, resulting in bursting stresses that can increase size cracks may lead spalling. Despite natural resistance structures against early periods, anti-bacterial additives later.