The study aims to investigate the mechanism of early-age cracks in different massive concrete structures (i.e. tunnels, bridge foundations and underground parking garages), with objective answering following three specific questions: To basic a research program is performed which mixes are tested Temperature Stress Testing Machine (TSTM). Furthermore autogenous shrinkage measured ways. Modeling...

In the precast building structure, joint is key part that affects mechanical performance of assembly structure. By selecting coarse and fine fraction aggregate; adding high quality mineral admixture, expansive agent, water-reducing agent; optimizing mixture ratio design, members concrete (PMJC) with self-compacting performance, micro-shrinkage, good volume stability, strength matching developed...

The influences of liquid-binder ratio and mixing sequence on the performance superabsorbent polymer (SAP)-containing alkali-activated slag (AAS) mortar are investigated in this study. It is found that SAP absorbs much less liquid upper supernatant AAS than water. Mixing with first induces a larger absorption capacity it solid first. Increasing improves flowability but reduces strength SAP. None...