Influence of casting conditions on durability and structural performance of HPC-AR : optimization of self-consolidating concrete to guarantee homogeneity during casting of long structural elements : final report.

Feys, Dimitri; Hernandez, Aida Margarita Ley

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Influence of casting conditions on durability and structural performance of HPC-AR : optimization of self-consolidating concrete to guarantee homogeneity during casting of long structural elements : final report.

2017-05-01
By Feys, Dimitri ; Hernandez, Aida Margarita Ley

File Language:

English

Details

Creators:

Feys, Dimitri ; Hernandez, Aida Margarita Ley
Corporate Creators:

Research on Concrete Applications for Sustainable Transportation (RE-CAST)
Corporate Contributors:

United States. Dept. of Transportation. Office of the Assistant Secretary for Research and Technology ; University Transportation Centers Program (U.S.)
Subject/TRT Terms:
Publication/ Report Number:

RECAST UTC #00050028
Resource Type:

Tech Report
Geographical Coverage:

United States
Corporate Publisher:

Research on Concrete Applications for Sustainable Transportation (RE-CAST)
Abstract:

This report is a summary of the research done on dynamic segregation of self-consolidating concrete (SCC) including the casting of pre-stressed beams at Coreslab Structures. SCC is a highly flowable concrete that spreads into place with little to no mechanical vibration 1. The high fluidity of the concrete is achieved by the addition of special construction chemicals, called superplasticizers. One of the main challenges for SCC is to combine the high flowability and passing ability with stability: the concrete must remain homogeneous during production, transport and placement. Settling of the aggregates or rising of cement paste or bleeding water could lead to inferior properties in parts of the structure 2. Segregation can be static when the mixture separates at rest, or dynamic, when the aggregates sink during flow.
Format:

PDF
Funding:

DTRT13-G-UTC45
Download URL:

https://rosap.ntl.bts.gov/view/dot/32795/dot_32795_DS1.pdf
File Type:

[PDF - 2.35 MB]
Collection(s):

University Transportation Centers ; US Transportation Collection
Main Document Checksum:

urn:sha256:e97ec23f19cbe3588374c2cf3c9bd51445246d203749b9f6dab216fc0cafd797

File Language:

English

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