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Concrete Lab Experience

Background

Ultra-high performance concrete (UHPC) has been widely used in Road and Bridge Engineering for its superior mechanical properties and durability. But few study has been conducted on UHPC aqueducts, and much resemblance can be found between aqueducts and bridges.

Mix propotion design

Exploring optimal basic UHPC matrix

Effect of reinforcement fibers

Testing 4 types of fiber with stardand 100*100*100(mm) specimens on their uniaxial compressive strength (UCS) and bending capacity with 100*100*400 specimens.

By comparison on mechanical and cracking properties, Copper-plated steel fiber is selected for following structural design and experiments.

Aqueduct Structure Design

New aqueducts are devised refering to national aqueducts standard of China. The basic follows basic structural

Several prototypes are analyzed with Abaqus for detailed design.

The effect of fibers and other reinforcement are considered by a modified constitutive model.

The approach has been applied on the analysis of fiber reinforced masonry structures.

Current stage

Casting a reduced-scale model to examine the structure