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Title:

Investigation of High Performance Concrete Containing Slag Under Restrained Shrinkage Conditions
Cover of Investigation of High Performance Concrete Containing Slag Under Restrained Shrinkage Conditions

Accession Number:

01557483

Record Type:

Component

Availability:

Transportation Research Board Business Office

500 Fifth Street, NW
Washington, DC 20001 United States

Abstract:

Over the last two decades, engineers have developed and introduced High Performance Concrete (HPC) to enhance the strength and durability aspects of concrete structures. With the introduction of HPC, however, there was a growing concern of the compressive strength being the only criterion in the specification of the concrete, and factors such as shrinkage and durability became more pronounced. Moreover, many state transportation agencies are becoming more concerned with the cracking potential in concrete decks as well as the availability of supplementary cementitious materials (SCMs). In response, HPC with slag as a SCM is becoming more popular and attractive to many transportation agencies and concrete suppliers because it is abundantly available with a relatively lower cost. Yet, cracking potentials of HPC with slag is directly related to its restrained shrinkage performance. The objective of this study is to develop and optimize the HPC mixes containing slag for concrete decks that would yield the best performance under restrained shrinkage conditions. Tests were performed to obtain the tensile splitting strength and modulus of elasticity to evaluate the cracking capacity of HPC with slag. Free and restrained shrinkage tests were performed to identify the effects of cement content, slag content, aggregate content, etc., on the cracking potential. Results show that HPC with slag mixes having a minimum of 1800 lb/yd³, coarse aggregate to fine aggregate ratio larger than 1.5, and a maximum of 650 lb/yd³ of total cementitious content, would have enhanced performance under restrained shrinkage conditions.

Supplemental Notes:

This paper was sponsored by TRB committee AFN20 Properties of Concrete.

Monograph Accession #:

01550057

Report/Paper Numbers:

15-5242

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Nassif, Hani
Montemarano, John
Na, Chaekuk

Pagination:

17p

Publication Date:

2015

Conference:

Transportation Research Board 94th Annual Meeting

Location: Washington DC, United States
Date: 2015-1-11 to 2015-1-15
Sponsors: Transportation Research Board

Media Type:

Digital/other

Features:

Figures; References; Tables

Subject Areas:

Highways; Materials; I32: Concrete

Source Data:

Transportation Research Board Annual Meeting 2015 Paper #15-5242

Files:

PRP, TRIS, TRB, ATRI

Created Date:

Dec 30 2014 1:45PM