Air-Entraining Admixtures for Concrete: Observations from the FHWA Mobile Concrete Technology Center

United States. Federal Highway Administration

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Air-Entraining Admixtures for Concrete: Observations from the FHWA Mobile Concrete Technology Center

2020-01-01
By United States. Federal Highway Administration

[PDF-196.11 KB]

English

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Details:

Corporate Creators:

United States. Federal Highway Administration
Subject/TRT Terms:

[+]

Admixtures Air Entraining Cement Freeze Thaw Durability
Publication/ Report Number:

FHWA-HIF-20-085
Resource Type:

Tech Report
Geographical Coverage:

United States
Corporate Publisher:

United States. Federal Highway Administration
Abstract:

Air-entraining admixtures facilitate the development of a system of microscopic air bubbles within concrete during mixing. They increase the freeze-thaw durability of concrete, increase resistance to scaling caused by deicing chemicals, and improve workability. Air entrainment will reduce concrete strength. As a general rule, a 1% increase in the concrete air content will decrease the 28-day compressive strength by about 3 to 5%.
Format:

PDF
Collection(s):

Federal Highway Administration
Main Document Checksum:

[+]

urn:sha256:5e446f5ed2a241601b3c3f7035783d870cb38b8ad8c3cd3222fffb8be9126a35
Download URL:

https://rosap.ntl.bts.gov/view/dot/50660/dot_50660_DS1.pdf
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Air-Entraining Admixtures for Concrete: Observations from the FHWA Mobile Concrete Technology Center

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