Prestress losses in pretensioned concrete beams cast with lightweight self-consolidating concrete

Comparison of Shrinkage, Creep and Elastic Shortening of VMA and Powder Type Self-Compacting Concrete and Normal Vibrated Concrete

“…More amount of binding material lead to finer pore structure which in turn gives rise to shrinkage [23] [24]. Less amount of coarse aggregates and higher amount of binder material increases creep and elastic shortening [25].…”

Composite beam theory for pretensioned concrete structures with solutions to transfer length and immediate prestress losses

“…The National Cooperative Highway Research Program (NCHRP) sponsored research [88] on the prestress losses of high-strength concrete bridge girders. Bymaster et al [89] studied prestress losses of light weight self-consolidating concrete and reported that current AASHTO design provisions [52] may overestimate elastic shortening loss for specimens with low concrete strength. Caro et al [90] and Garber et al [91] summarized the major prestress losses formulas and developed a database for pretensioned concrete structures.…”

Spacing requirements of 0.7 in. (18 mm) diameter prestressing strands

“…Second, high-strength SCC is widely used and is partially replacing conventional concrete in construction. 28 A combination of high-strength SCC and 0.7 in. (18 mm) diameter strands would offer unique benefits in bridge construction.…”