Dependencies between Durability Properties of Concrete with Surface-Treated Recycled Brick Aggregate in Long-Term Monitoring

Abstract

The paper presents and discusses the durability parameters of concrete (total water absorption, capillary absorption, and compressive strength), which have been monitored over a long-term period of 3 years. The concretes were prepared with recycled brick aggregate of fraction 4/8, the latter being surface treated by different procedures before mixing the concrete. Surface treatments allow the RBA to achieve a lower water absorption capacity (45-82% decrease), thus gaining a potential to optimize the amount of mixing water, and thus improve the quality of the concrete. After 3 years of curing, all samples still show better property values than the initial values at 28 days, indicating good durability over this period.