Abstract

Regional shortages in fly ash have led to the consideration of alternative pozzolanic sources, including ponded coal combustion products (CCP). Additionally, prevention of alkali-silica reaction (ASR) expansion remains an important consideration in construction, but with less fly ash available, alternate means for mitigation are sought. Here, the efficacy of ponded CCP in limiting ASR expansion is evaluated, considering 13 ponded CCP samples obtained from 4 power plants. Each was evaluated in accordance with ASTM C618-19, Standard Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete, to assess specification compliance and to determine its ability to evaluate the pozzolanic reactivity of tested supplementary cementitious materials (SCMs). Additional testing was performed on ASR mitigation to determine if pozzolanicity among candidate SCMs can be assessed through comparisons to inert quartz. Blended mortars were tested at 20 % replacement by weight for compressive strength via 2-in. mortar cubes, whereas ASR mitigation was tested through the accelerated mortar bar test (ASTM C1567-21, Standard Test Method for Determining the Potential Alkali-Silica Reactivity of Combinations of Cementitious Materials and Aggregate (Accelerated Mortar-Bar Method)). It was determined that the ability to meet strength activity index limits is heavily influenced by the physical state of the ash (primarily loss on ignition) instead of its chemical reactivity. Additionally, many materials that meet ASTM C618 specifications poorly mitigate ASR damage because of a lack of pozzolanicity, which was related to higher Fe2O3 contents. Based on these results, the following changes to ASTM C618 are recommended: (1) ASTM C1260-21, Standard Test Method for Potential Alkali Reactivity of Aggregates (Mortar-Bar Method),/C1567 14-day expansion for a control mixture and a 20 % SCM mixture when blended with a reactive aggregate reported relative to the control; (2) remove Fe2O3 from the primary oxide content calculation; and (3) include an upper limit of 12 % on Fe2O3 content. These changes will improve ASTM C618’s ability to reliably report a candidate SCM’s reactivity and potential to mitigate ASR.

References

1.
Snellings
R.
,
Mertens
G.
, and
Elsen
J.
, “
Supplementary Cementitious Materials
,”
Reviews in Mineralogy and Geochemistry
74
, no. 
1
(January
2012
):
211
278
, https://doi.org/10.2138/rmg.2012.74.6
2.
Ahmaruzzaman
M.
, “
A Review on the Utilization of Fly Ash
,”
Progress in Energy and Combustion Science
36
, no. 
3
(June
2010
):
327
363
, https://doi.org/10.1016/j.pecs.2009.11.003
3.
Bhatt
A.
,
Priyadarshini
S.
,
Mohanakrishnana
A. A.
,
Abri
A.
,
Sattler
M.
, and
Techapaphawit
S.
, “
Physical, Chemical, and Geotechnical Properties of Coal Fly Ash: A Global Review
,”
Case Studies in Construction Materials
11
(December
2019
): e00263, https://doi.org/10.1016/j.cscm.2019.e00263
4.
Jayaranjan
M. L. D.
,
van Hullebusch
E. D.
, and
Annachhatre
A. P.
, “
Reuse Options for Coal Fired Power Plant Bottom Ash and Fly Ash
,”
Reviews in Environmental Science and Bio/Technology
13
(April
2014
):
467
486
.
5.
Lothenbach
B.
,
Scrivener
K.
, and
Hooton
R. D.
, “
Supplementary Cementitious Materials
,”
Cement and Concrete Research
41
, no. 
12
(December
2011
):
1244
1256
, https://doi.org/10.1016/j.cemconres.2010.12.001
6.
Standard Terminology Relating to Concrete and Concrete Aggregates
, ASTM C125-21a (West Conshohocken, PA:
ASTM International
, approved October 1,
2021
), https://doi.org/10.1520/C0125-21A
7.
El-Diadamony
H.
,
Amer
A. A.
,
Sokkary
T. M.
, and
El-Hoseny
S.
, “
Hydration and Characteristics of Metakaolin Pozzolanic Cement Pastes
,”
HBRC Journal
14
, no. 
2
(August
2018
):
150
158
, https://doi.org/10.1016/j.hbrcj.2015.05.005
8.
Zhuang
X. Y.
,
Chen
L.
,
Komarneni
S.
,
Zhou
C. H.
,
Tong
D. S.
,
Yang
H. M.
,
Yu
W. H.
, and
Wang
H.
, “
Fly Ash-Based Geopolymer: Clean Production, Properties and Applications
,”
Journal of Cleaner Production
125
(July
2016
):
253
267
, https://doi.org/10.1016/j.jclepro.2016.03.019
9.
Energy Information Administration
US
,
Electric Power Monthly with Data for April 2020
(
Washington, DC
:
US Energy Information Administration
,
2020
).
10.
American Association of State Highway and Transportation Officials
AASHTO Subcommittee on Materials (SOM) 2016 Fly Ash Task Force Report
(
Washington, DC
:
American Association of State Highway and Transportation Officials
,
2016
).
11.
Bendapudi
S. C. K.
and
Saha
P.
, “
Contribution of Fly Ash to the Properties of Mortar and Concrete
,”
International Journal of Earth Sciences and Engineering
4
, no. 
6
(October
2011
):
1017
1023
.
12.
Saha
A. K.
, “
Effect of Class F Fly Ash on the Durability Properties of Concrete
,”
Sustainable Environment Research
28
, no. 
1
(January
2018
):
25
31
, https://doi.org/10.1016/j.serj.2017.09.001
13.
Swamy
R. N.
,
The Alkali-Silica Reaction in Concrete
(
New York
:
Van Nostrand Reinhold
,
1992
).
14.
Federal Highway Administration “
ASR Reference Center
,”
US Department of Transportation
,
2017
, https://web.archive.org/web/20220722170721/https://www.fhwa.dot.gov/pavement/concrete/asr/reference.cfm
15.
U.S. Army Corps of Engineers.
Report on Alkali-Aggregate Problems on Portland Cement Concrete Airfield Pavements
(
Omaha, NE
:
U.S. Army Corps of Engineers
,
2006
).
16.
Folliard
K. J.
,
Thomas
M. D. A.
, and
Kurtis
K. E.
,
Guidelines for the Use of Lithium to Mitigate or Prevent ASR
(
Austin, TX
:
Federal Highway Administration
,
2003
).
17.
Islam
M. S.
and
Ghafoori
N.
, “
Influence of Cement Alkalis on Mortar Expansion of ASTM C1260
,”
Proceedings of the Institution of Civil Engineers—Construction Materials
170
, no. 
3
(June
2017
):
153
161
, https://doi.org/10.1680/jcoma.15.00020
18.
Hardy
J. T.
,
Climate Change: Causes, Effects and Solutions
(
Hoboken, NJ
:
Wiley
,
2003
).
19.
Gautam
B. P.
and
Panesar
D. K.
, “
The Effect of Elevated Conditioning Temperature on the ASR Expansion, Cracking and Properties of Reactive Spratt Aggregate Concrete
,”
Construction and Building Materials
140
(June
2017
):
310
320
, https://doi.org/10.1016/j.conbuildmat.2017.02.104
20.
Fanijo
E. O.
,
Kolawole
J. T.
, and
Almakrab
A.
, “
Alkali-Silica Reaction (ASR) in Concrete Structures: Mechanisms, Effects and Evaluation Test Methods Adopted in the United States
,”
Case Studies in Construction Materials
15
(December
2021
): e00563, https://doi.org/10.1016/j.cscm.2021.e00563
21.
Shafaatian
S. M. H.
,
Akhavan
A.
,
Maraghechi
H.
, and
Rajabipour
F.
, “
How Does Fly Ash Mitigate Alkali-Silica Reaction (ASR) in Accelerated Mortar Bar Test (ASTM C1567)?
Cement & Concrete Composites
37
(March
2013
):
143
153
, https://doi.org/10.1016/j.cemconcomp.2012.11.004
22.
Chappex
T.
and
Scrivener
K.
, “
Alkali Fixation of C-S-H in Blended Cement Pastes and Its Relation to Alkali Silica Reaction
,”
Cement and Concrete Research
42
, no. 
8
(August
2012
):
1049
1054
, https://doi.org/10.1016/j.cemconres.2012.03.010
23.
Rajabipour
F.
,
Giannini
E.
,
Dunant
C.
,
Ideker
J. H.
, and
Thomas
M. D. A.
, “
Alkali-Silica Reaction: Current Understanding of the Reaction Mechanisms and the Knowledge Gaps
,”
Cement and Concrete Research
76
(October
2015
):
130
146
, https://doi.org/10.1016/j.cemconres.2015.05.024
24.
Blanks
R. F.
and
Meissner
H. S.
, “
The Expansion Test as a Measure of Alkali-Aggregate Reaction
,”
Journal of the American Concrete Institute
42
(April
1946
):
517
540
.
25.
American Coal Ash Association
2017 Coal Combustion Product Production & Use Survey
(
Farmington Hills, MI
:
American Coal Ash Association
,
2018
).
26.
Diaz-Loya
I.
,
Juenger
M.
,
Seraj
S.
, and
Minkara
R.
, “
Extending Supplementary Cementitious Material Resources: Reclaimed and Remediated Fly Ash and Natural Pozzolans
,”
Cement and Concrete Composites
101
(August
2019
):
44
51
, https://doi.org/10.1016/j.cemconcomp.2017.06.011
27.
Wirth
X.
,
Benkeser
D.
,
Nortey Yeboah
N. N.
,
Shearer
C. R.
,
Kurtis
K. E.
, and
Burns
S. E.
, “
Evaluation of Alternative Fly Ashes as Supplementary Cementitious Materials
,”
ACI Materials Journal
116
, no. 
4
(July
2019
):
69
77
.
28.
Wirth
X.
,
Shearer
C. R.
,
Burns
S. E.
, and
Kurtis
K. E.
, “
Evolution of the Properties of Organic Material and Mineral Phases of Reclaimed Coal Fly Ash
” (paper presentation,
2017 World of Coal Ash Conference
, Lexington, KY, May 8–11,
2017
).
29.
Adams
T. H.
, “
Ash Around the World: Message from ACAA Executive Director (Happy Birthday ACAA!)
,” in
Ash at Work: Applications, Science, and Sustainability of Coal Ash
(Denver, CO:
American Coal Ash Association
,
2018
).
30.
31.
Environmental Protection Agency
Resource and Recovery Act (RCRA). 80 FR 21301 - Hazardous and Solid Waste Management System; Disposal of Coal Combustion Residuals from Electric Utilities
(
Washington, DC
:
Office of the Federal Register
,
2015
).
32.
Shively
W.
,
Bishop
P.
,
Gress
D.
, and
Brown
T.
, “
Leaching Tests of Heavy Metals Stabilized with Portland Cement
,”
Water Pollution Control Federation
58
, no. 
3
(March
1986
):
234
241
.
33.
Standard Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete
, ASTM C618-19 (West Conshohocken, PA:
ASTM International
, approved January 1,
2019
), https://doi.org/10.1520/C0618-19
34.
Kalina
R. D.
,
Al-Shmaisani
S.
,
Ferron
R. D.
, and
Juenger
M. C. G.
, “
False Positives in ASTM C618 Specifications for Natural Pozzolans
,”
ACI Materials Journal
116
, no. 
1
(January
2019
):
165
172
.
35.
Standard Guide for Evaluation of Alternative Supplementary Cementitious Materials (ASCM) for Use in Concrete
, ASTM C1709-18 (West Conshohocken, PA:
ASTM International
, approved March 1,
2018
), https://doi.org/10.1520/C1709-18
36.
Durability Subcommittee
PCA
,
Evaluation of Alkali Silica Reactivity (ASR) Mortar Bar Testing (ASTM C1260 and C1567) at 14 Days and 28 Days
(
Washington, DC
:
PCA Durability Subcommittee
,
2011
).
37.
Maraghechi
H.
,
Rajabipour
F.
,
Pantano
C. G.
, and
Burgos
W. D.
, “
Effect of Calcium on Dissolution and Precipitation Reactions of Amorphous Silica at High Alkalinity
,”
Cement and Concrete Research
87
(September
2016
):
1
13
, https://doi.org/10.1016/j.cemconres.2016.05.004
38.
Narmluk
M.
and
Nawa
T.
, “
Effect of Fly Ash on the Kinetics of Portland Cement Hydration at Different Curing Temperatures
,”
Cement and Concrete Research
41
, no. 
6
(June
2011
):
579
589
, https://doi.org/10.1016/j.cemconres.2011.02.005
39.
Standard Test Method for Fineness of Hydraulic Cement by the 45-micron (No. 325) Sieve
, ASTM C430-17 (West Conshohocken, PA:
ASTM International
, approved December 1,
2017
), https://doi.org/10.1520/C0430-17
40.
Standard Practice for Mechanical Mixing of Hydraulic Cement Pastes and Mortars of Plastic Consistency
, ASTM C305-14 (West Conshohocken, PA:
ASTM International
, approved August 1,
2014
), https://doi.org/10.1520/C0305-14
41.
Standard Test Method for Compressive Strength of Hydraulic Cement Mortars (Using 2-in. or [50-mm] Cube Specimens)
, ASTM C109/C109M-20 (West Conshohocken, PA:
ASTM International
, approved June 15,
2020
), https://doi.org/10.1520/C0109_C0109M-20
42.
Standard Test Method for Potential Alkali Reactivity of Aggregates (Mortar-Bar Method)
, ASTM C1260-14 (West Conshohocken, PA:
ASTM International
, approved August 1,
2014
), https://doi.org/10.1520/C1260-14
43.
Standard Test Method for Determining the Potential Alkali-Silica Reactivity of Combinations of Cementitious Materials and Aggregate (Accelerated Mortar-Bar Method)
, ASTM C1567-13 (West Conshohocken, PA:
ASTM International
, approved January 1, 2013), https://doi.org/10.1520/C1567-13
44.
Chung
C.-W.
,
Suraneni
P.
,
Popovics
J. S.
, and
Struble
L. J.
, “
Using Ultrasonic Wave Reflection to Monitor False Set of Cement Paste
,”
Cement and Concrete Composites
84
(November
2017
):
10
18
, https://doi.org/10.1016/j.cemconcomp.2017.08.010
45.
Yuan
Q.
,
Liu
Z.
,
Zheng
K.
, and
Ma
C.
, “
Inorganic Cementing Materials
,” in
Civil Engineering Materials: From Theory to Practice
(
Amsterdam, the Netherlands
:
Elsevier
,
2021
),
17
57
.
46.
Li
H. L.
,
Liu
G. L.
, and
Cao
Y.
, “
Content and Distribution of Trace Elements and Polycyclic Aromatic Hydrocarbons in Fly Ash from a Coal-Fired CHP Plant
,”
Aerosol and Air Quality Research
14
, no. 
4
(May
2014
):
1179
1188
, https://doi.org/10.4209/aaqr.2013.06.0216
47.
Standard Specification for Portland Cement
, ASTM C150/C150M-20 (West Conshohocken, PA:
ASTM International
, approved April 1,
2020
), https://doi.org/10.1520/C0150_C0150M-20
48.
Standard Test Methods for Fineness of Hydraulic Cement by Air-Permeability Apparatus
, ASTM C204-18 (West Conshohocken, PA:
ASTM International
, approved October 1,
2018
), https://doi.org/10.1520/C0204-18
49.
Wang
Y.
,
Burris
L.
,
Shearer
C. R.
,
Hooton
D.
, and
Suraneni
P.
, “
Strength Activity Index and Bulk Resistivity Index Modifications that Differentiate Inert and Reactive Materials
,”
Cement and Concrete Composites
124
(November
2021
): 104240, https://doi.org/10.1016/j.cemconcomp.2021.104240
50.
Federal Highway Administration
User Guidelines for Waste and Byproduct Materials in Pavement Construction: Coal Fly Ash
(
Washington, DC
:
US Department of Transportation
,
2016
).
51.
Rafieizonooz
M.
,
Mirza
J.
,
Salim
M. R.
,
Hussin
M. W.
, and
Khankhaje
E.
, “
Investigation of Coal Bottom Ash and Fly Ash in Concrete as Replacement for Sand and Cement
,”
Construction and Building Materials
116
(July
2016
):
15
24
, https://doi.org/10.1016/j.conbuildmat.2016.04.080
52.
Amonamarittakul
S.
, “
Study on Properties of Concrete Containing Fly Ash with Different Properties
” (PhD diss.,
Thammasat University
,
2012
).
53.
Fox
J. M.
and
Constantiner
D.
, “
The Influence of Fly Ash after Change to Low-NOx Burners on Concrete Strength—Case Study
” (
paper presentation, 2007 World of Coal Ash
,
Covington, KY
, May 7–10,
2007
).
54.
Atis
C. D.
, “
Strength Properties of High-Volume Fly Ash Roller Compacted and Workable Concrete, and Influence of Curing Condition
,”
Cement and Concrete Research
35
, no. 
6
(June
2005
):
1112
1121
, https://doi.org/10.1016/j.cemconres.2004.07.037
55.
Fernandez
R.
,
Martirena
F.
, and
Scrivener
K. L.
, “
The Origin of Pozzolanic Activity of Calcined Clay Minerals: A Comparison between Kaolinite, Illite, and Montmorillonite
,”
Cement and Concrete Research
41
, no. 
1
(January
2011
):
113
122
, https://doi.org/10.1016/j.cemconres.2010.09.013
56.
Nadelman
E.
and
Kurtis
K. E.
, “
A Resistivity-Based Approach to Optimizing Concrete Performance
,”
Concrete International
36
, no. 
5
(May
2014
):
50
54
.
57.
Gebler
S. H.
and
Klieger
P.
, “
Effect of Fly Ash on Physical Properties of Concrete
,”
ACI Symposium Paper
91
(February
1986
):
1
50
.
58.
Standard Test Method for Determination of Length Change of Concrete Due to Alkali-Silica Reaction
, ASTM C1293-20a (West Conshohocken, PA:
ASTM International
, approved June 1,
2020
), https://doi.org/10.1520/C1293-20A
59.
Standard Guide for Reducing the Risk of Deleterious Alkali-Aggregate Reaction in Concrete
, ASTM C1778-20 (West Conshohocken, PA:
ASTM International
, approved April 1,
2020
), https://doi.org/10.1520/C1778-20
60.
Federal Highway Administration
User Guidelines for Waste and Byproduct Materials in Pavement Construction: Coal Bottom Ash/Boiler Slag
(
Washington, DC
:
US Department of Transportation
,
2016
).
61.
van Lier
J. A.
,
De Bruyn
P. L.
, and
Overbeek
J. T. G.
. “
The Solubility of Quartz,”
The Journal of Physical Chemistry
64
, no. 
11
(November
1960
):
1675
1682
, https://doi.org/10.1021/j100840a017
62.
Bagheri
M.
,
Lothenbach
B.
, and
Scrivener
K.
, “
Effect of Different Ions on Dissolution Rates of Silica and Feldspars at High pH
,”
Cement and Concrete Research
152
(February
2022
):
1
19
.
63.
Chopperla
K. S. T.
,
Drimalas
T.
,
Beyene
M.
,
Tanesi
J.
,
Folliard
K.
,
Ardani
A.
, and
Ideker
J. H.
, “
Combining Reliable Performance Testing and Binder Properties to Determine Preventive Measures for Alkali-Silica Reaction
,”
Cement and Concrete Research
151
(January
2022
): 106641, https://doi.org/10.1016/j.cemconres.2021.106641
64.
Kasaniya
M.
,
Thomas
M. D. A.
, and
Moffatt
E. G.
, “
Efficiency of Natural Pozzolans, Ground Glasses and Coal Bottom Ashes in Mitigating Sulfate Attack and Alkali-Silica Reaction
,”
Cement and Concrete Research
149
(November
2021
): 106551, https://doi.org/10.1016/j.cemconres.2021.106551
65.
Thomas
M.
,
Jewell
R.
, and
Jones
R.
, “
Coal Fly Ash as a Pozzolan
,” in
Coal Combustion Products (CCP’s): Characteristics, Utilization, and Beneficiation
, ed.
Robl
T.
,
Oberlink
A.
, and
Jones
R.
(
Cambridge, MA
:
Woodhead Publishing
,
2017
),
121
154
.
66.
Perrefeu
L.
,
The Dissolution Behaviour of Magnetite Electrodes in High-Temperature Water
(
Ottawa, Canada
:
The University of New Brunswick
,
2006
).
67.
Brantley
S. L.
,
Kubicki
J. D.
, and
White
A. F.
,
Kinetics of Water-Rock Interaction
(
New York
:
Springer
,
2008
).
68.
Malvar
L. J.
and
Lenke
L. R.
, “
Efficiency of Fly Ash in Mitigating Alkali-Silica Reaction Based on Chemical Composition
,”
ACI Materials Journal
103
, no. 
5
(September
2006
):
319
326
.
69.
Venkatanarayanan
H. K.
and
Rangaraju
P. R.
, “
Decoupling the Effects of Chemical Composition and Fineness of Fly Ash in Mitigating Alkali-Silica Reaction
,”
Cement and Concrete Composites
43
(October
2013
):
54
68
, https://doi.org/10.1016/j.cemconcomp.2013.06.009
70.
Puppala
A.
,
Pedarla
A.
, and
Bheemasetti
T.
, “
Soil Modification by Admixtures
,” in
Power Plant Instrumentation and Control Handbook: A Guide to Thermal Power Plants
, ed.
Debnath
A. K.
(
Cambridge, MA
:
Academic Press
,
2019
),
291
301
.
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