Development of Specifications for Engineered Cementitious Composites for Use in Bridge Deck Overlays

Hajj, Elie; Sanders, David H.; Weitzel, Nicholas D.

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Development of Specifications for Engineered Cementitious Composites for Use in Bridge Deck Overlays

2016-02-01
By Hajj, Elie ; Sanders, David H. ; Weitzel, Nicholas D.

File Language:

English

Details

Creators:

Hajj, Elie ; Sanders, David H. ; Weitzel, Nicholas D.
Corporate Creators:

University of Nevada, Reno. Department of Civil and Environmental Engineering
Subject/TRT Terms:
Publication/ Report Number:

079-13-803
Resource Type:

Tech Report
Geographical Coverage:

United States
Corporate Publisher:

Nevada. Dept. of Transportation
Abstract:

Engineered cementitious composite (ECC) material is a high strength, fiber-reinforced, ductile mortar mixture that can exhibit tensile strains of up to 5%. ECC has a dense matrix, giving the material exceptional durability characteristics. The durability and mechanical properties of ECC make it a desirable, though expensive, construction material. This study presents an extensive evaluation of modified engineered cementitious composite (MECC) using locally sourced raw materials for use as a bridge deck overlay material. MECC is a mixture of cement, fly ash, water, concrete sand, and poly-vinyl alcohol fibers. The concrete sand used in this study was used in lieu of the typically used silica sand to reduce the high material cost for ECC. Three different representative aggregates from throughout Nevada were selected to understand how the local aggregates would perform in MECC mixes. In total, eighteen different laboratory mixes of MECC were evaluated using multiple performance and mechanical tests. After the completion of the laboratory phase, two different field trials were conducted to determine the feasibility of batching large amounts of MECC at commercial concrete batch plants.
Format:

PDF
Download URL:

https://rosap.ntl.bts.gov/view/dot/34941/dot_34941_DS1.pdf
File Type:

[PDF - 4.79 MB]
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:7458e1c070cf38bcb1ce43cd76402733d6d7af2ecd06a238ba19dfe29f9c5c0434396e9992c74a5f50c9f40e8801d5725b0439c120a6b539d1cd4983aa0a50fb

File Language:

English

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