Wider Perspective of Testing Early Shrinkage of Concrete Modified with Admixtures in Changeable W/C Ratio as Innovative Solution in Civil Engineering

The problems of concrete shrinkage have been debated by a number of authors, including those specializing in concrete chemistry. The development of concrete technologies, introducing chemical admixtures and mineral additives and high resistance concretes has contributed to creating a wider perspective on shrinkage in recent years and charting a new area of research. This article is the result of author's work in creating innovative solution for concrete shrinkage testing taking into consideration the following stages: initial shrinkage comprising: swelling, chemical (contraction), and plastic shrinkage, followed by expansion and then a second shrinkage (during drying).