Field Experience and Structural Performance of Self-Consolidating Concrete in High-Rise and Bridge Construction-VDOT’s SCC Applications in Beams and Lessons Learned (Recorded presentation)

VDOT’s SCC Applications in Beams and Lessons Learned (Recorded presentation)

Video Transcription

Video Summary

The presentation discusses the Virginia Department of Transportation's (VDOT) utilization of self-consolidating concrete (SCC) in various infrastructure projects. The speaker details their experiences and lessons learned with SCC, focusing on bridges and beams made with normal and lightweight materials. The discussion includes the Bebo Arch bridge project, which faced issues like surface blemishes and material sensitivity. Emphasizing quality control measures, VDOT successfully incorporated SCC in drill shafts, pier caps, and substructure repairs by managing slump flow and incorporating retarding admixtures. SCC's ease of placement and reduced labor needs were highlighted in these projects. A key takeaway was ensuring consistent SCC performance throughout construction, considering factors like slump loss and maintaining stable mixes with proper viscosity modifiers. VDOT's experience with SCC resulted in improved constructability and strength, leading to its inclusion in standard specifications.

Keywords

self-consolidating concrete

infrastructure projects

VDOT

Bebo Arch bridge

quality control