Research notes : the pH of water in contact with fresh concrete.

Oregon. Dept. of Transportation. Research Unit

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Research notes : the pH of water in contact with fresh concrete.

2003-02-01
By Oregon. Dept. of Transportation. Research Unit

[PDF-366.40 KB]

English

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Alternative Title:

The pH of water in contact with fresh concrete.
Corporate Creators:

Oregon. Dept. of Transportation. Research Unit
Subject/TRT Terms:

[+]

Data Processing Ditches Fishes Fresh Concrete PH Value Shafts (Machinery) Water Waterways
Publication/ Report Number:

RSN 03-02
Resource Type:

Tech Report
Geographical Coverage:

Oregon
Corporate Publisher:

Oregon. Dept. of Transportation. Research Unit
Abstract:

Fresh concrete can significantly change the pH of water. To study the impacts, the pH of a few drilled shaft pours on Bear Creek near Zigzag (US Highway 26, MP 42.6) were monitored in order to aid discussion on future similar work. The concrete was placed in the concrete foundation shaft from the bottom up using a tremie tube. As the water/fresh concrete interface neared the surface, the pH of the water in the ditch near the shaft increased, as described in the next sections. In the image below, concrete had not yet been placed in the shaft (with rebar cage). Note that the groundwater level is near the surface of the shaft.
Format:

PDF
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:66068e82bcf326df4bfd2f5ae401006649547caa4de81131c76e68dfca7eda58
Download URL:

https://rosap.ntl.bts.gov/view/dot/22623/dot_22623_DS1.pdf
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Research notes : the pH of water in contact with fresh concrete.

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