Dedolomitization and Alkali Reactions in Ohio-sourced Dolstone Aggregates

Smeltz, Jonathan; Farver, John; Bowling Green State University. Dept. of Geology

Advanced Search

Select up to three search categories and corresponding keywords using the fields to the right. Refer to the Help section for more detailed instructions.

Search our Collections & Repository

Advanced Search
Custom Query

All these words:

For very narrow results

This exact word or phrase:

When looking for a specific result

Any of these words:

Best used for discovery & interchangable words

None of these words:

Recommended to be used in conjunction with other fields

Language:

Dates

Publication Date Range:

to

Document Data

Title:

Document Type:

Library

Collection:

Series:

People

Author:

Clear All

Query Builder

Query box

Clear All

For additional assistance using the Custom Query please check out our Help Page

i

Dedolomitization and Alkali Reactions in Ohio-sourced Dolstone Aggregates

2017-11-01
By Smeltz, Jonathan ; Farver, John

[PDF-33.21 MB]

Select the Download button to view the document

This document is over 5mb in size and cannot be previewed

English

Details You May Also Like

Details:

Creators:

Smeltz, Jonathan ; Farver, John

Smeltz, Jonathan ; Farver, John Less -
Corporate Creators:

Bowling Green State University. Dept. of Geology
Corporate Contributors:

Ohio. Dept. of Transportation ; United States. Federal Highway Administration

Ohio. Dept. of Transportation ; United States. Federal Highway Administration Less -
Subject/TRT Terms:

[+]

Aggregates Alkali-silica Reaction Alkali Aggregate Reactions Concrete Dedolomitization Dolomite Freeze Thaw Durability State Of The Art
Publication/ Report Number:

FHWA/OH-2017-9
Resource Type:

Tech Report
Geographical Coverage:

United States ; Ohio

United States ; Ohio Less -
Edition:

Final Report September 2015 - January 2017
Corporate Publisher:

Ohio. Dept. of Transportation
Abstract:

Concrete samples produced using NW-Ohio sourced aggregates were evaluated for susceptibility to degradation and premature failure due to cracks formed by the volume expansion during hydration of silica gels produced by alkali-silica reactions between alkaline Portland cement and dolostone aggregates. Expansion tests were performed on concrete prisms produced using NW-Ohio sourced dolostone aggregates. After the expansion tests, concrete samples were characterized using Polarized Light Microscopy (PLM), Scanning Electron Microscopy (SEM) with Energy Dispersive Xray microanalysis (SEM/EDS), and X-ray Powder Diffraction (XRD). The results demonstrate significant amounts of dedolomitization, but little if any alkali-silica reaction (ASR) occurred at least over the one-year duration of the expansion tests. The lack of excessive expansion and cracking due to ASR in these concrete samples reflects the very low amounts of reactive silica phases found in the aggregates used in this study.
Format:

PDF
Funding:

SJN 135267
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:f8e0ce7686c1f2dc296630eb91a2b21ac2dc0917a194f7ff7bd12b9c64ba8143
Download URL:

https://rosap.ntl.bts.gov/view/dot/35108/dot_35108_DS1.pdf
File Type:

No Additional Files

More +

Dedolomitization and Alkali Reactions in Ohio-sourced Dolstone Aggregates

Details:

Supporting Files

You May Also Like