Synthesis and evaluation of lightweight concrete research relevant to the AASHTO LRFD bridge design specifications : potential revisions for definition and mechanical properties.

Greene, Gary; Graybeal, Benjamin A.

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Synthesis and evaluation of lightweight concrete research relevant to the AASHTO LRFD bridge design specifications : potential revisions for definition and mechanical properties.

2012-11-01
By Greene, Gary ; Graybeal, Benjamin A.

File Language:

English

Details

Creators:

Greene, Gary ; Graybeal, Benjamin A.
Corporate Creators:

United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure Research and Development
Subject/TRT Terms:
Publication/ Report Number:

FHWA-HRT-13-030;NTIS PB2013-102359
Resource Type:

Manuscript
Geographical Coverage:

United States
Edition:

Final report.
Corporate Publisher:

United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure Research and Development
Abstract:

Much of the fundamental basis for the current lightweight concrete provisions in the AASHTO LRFD Bridge ; Design Specifications is based on research of lightweight concrete (LWC) from the 1960s. The LWC that was ; part of this research used traditional mixes of coarse aggregate, fine aggregate, portland cement, and water. ; Broad-based advancement in concrete technology over the past 50 years has given rise to significant ; advancements in concrete mechanical and durability performance. The purpose of this document is to give ; members of AASHTO Subcommittee on Bridges and Structures T-10 the opportunity to begin considering ; specific proposed revisions to provisions related to LWC within Chapter 5 of the AASHTO LRFD ; Specifications. A framework for addressing LWC in the specifications is proposed wherein the definition of ; LWC, the mechanical properties of LWC, and a reduction factor relevant to LWC structural performance is ; discussed. This document served as supplemental information in support of the discussion that occurred at the ; September 2012 T-10 meeting in Nashville, Tennessee.
Format:

PDF
Download URL:

https://rosap.ntl.bts.gov/view/dot/25684/dot_25684_DS1.pdf
File Type:

[PDF - 2.95 MB]
Collection(s):

Federal Highway Administration ; US Transportation Collection
Main Document Checksum:

urn:sha-512:b2e4806879f4a5a4198722a20a9967caf3865068f7638e568efe831f917bebf46ffb058c132a27a01b0d01004397ae0824092cd80389c3cf5fbfb72673fad1c4

File Language:

English

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