NTL Record

Title Lightweight Concrete : Mechanical Properties : TechBrief
Record ID 61714
Personal Name
Creator		 Graybeal, Benjamin A.; Greene, Gary
Corporate Creator United States. Federal Highway Administration
Publisher United States. Federal Highway Administration
Publication Date 20130601
Language English
Abstract There is a limited amount of test data on the mechanical properties of high-strength lightweight concrete (LWC) with a concrete unit weight (wc) between that of traditional LWC and normal weight concrete (NWC). Concrete with a wc in this range is also not covered in the American Association of State Highway and Traffic Officials (AASHTO) Load-and-Resistance Factor Design (LRFD) Bridge Design Specifications. (2) This research program includes a significant number of mechanical property tests on this type of concrete. The results from this research project are included into a LWC database that covers a range of wc to determine trends for LWC as a function of wc. New design expressions for mechanical properties are proposed for LWC as a function of wc as opposed to the more common method of using concrete constituent materials. The design expressions represent potential revisions to the AASHTO LRFD Bridge Design Specifications relating to the mechanical properties of LWC.
Rosap ID dot:34853
Rosap URL https://rosap.ntl.bts.gov/view/dot/34853
TRT Terms Bridge design; Lightweight concrete; Mechanical properties; Mechanical tests; Properties of materials
General Subjects Load and resistance factor design; AASHTO LRFD Bridge Design Specifications; LWC; LRFD design specifications
Geographical
Coverage		 United States
TRIS Online
Accession No		 1487021
Contract Number DTFH61 10 D 00017
Report Number FHWA-HRT-13-061; HRDi-40/06-13(250)E
Availability Federal Highway Administration
Resource type Brief
URL https://ntlrepository.blob.core.windows.net/lib/61000/61700/61714/13061.pdf
Format PDF
Database NTL Digital Repository