ABSTRACT
ABSTRACT: By using the technology of mixing UEA, water reducing agent and active admixture to configure shrinkage-compensating concret, the test analyzes the working performance, impermeability and durability of shrinkage-compensating concrete, mainly studies the changes of compressive strength in steel-mould maintenance, and tests the changes of restricted expansion rate and free expansion rate. The results show that the compressive strengths of 7 days and 28 days under restricted state increase by 11.3% and 8.7% respectively compared with those under free conditions, and the development of restricted expansion rate mainly happens in 14 days. Test results are applied in engineering projects, and the control points of construction technology are put forward, which are useful for the structural design, construction and application of shrinkage-compensating concrete.
