EFFECT OF VARIOUS TYPES RECYCLE AGGREGATE ON CONCRETE SHRINKAGE
The recycling of demolished construction material can be reused as non-structural and structural concrete material with limited dosage and very strict aggregate quality control. This paper reports the investigation on the shrinkage of various recycled aggregate concretes. Eight groups of samples made from coarse recycle concrete aggregate, fine recycled concrete wall aggregate, coarse recycled clay roof tile aggregate as both normal and high strength concrete were prepare. On each group, a sample made of natural aggregate was mixed as reference. Each type of recycled aggregate was used as partial and fully replacement of natural aggregate. The total shrinkage up to 90 days was recorded. Samples contained coarse clay roof tile recycled aggregate and coarse recycled concrete aggregate recorded the most and the less shrinkage respectively.