Abstract
This study investigated the topography of plain concrete during freeze-thaw exposure and following abrasive blasting. The independent variables included the water-cementitious material ratio (w/cm) (0.42, 0.50, or 0.56); the number of freeze-thaw cycles (100, 200, or 300); and the blasting method (dry ice or sand). Using the three-dimensional (3D) surface roughness as the response parameter, the analysis of variance (ANOVA) results indicated that the number of freeze-thaw cycles is most influential in governing the measured roughness due to both freezing and thawing and abrasive blasting. The statistical data indicate that the roughnesses created by the blasting methods are not significantly different, which suggests that both dry ice and sand produced equivalent surface topography. However, qualitative examinations revealed that sand blasting generated a relatively uniform surface, whereas dry ice blasting created localized damage in the form of pitting. This effect may stem from differences in the flow behavior and size of the particles prior to impact with the substrate.
| Original language | English |
|---|---|
| Article number | 04014100 |
| Journal | Journal of Materials in Civil Engineering |
| Volume | 27 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 1 2014 |
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Keywords
- Concrete construction
- Deterioration
- Durability
- Erosion
- Particulate media
- Rehabilitation
- Sand
- Surface roughness
ASJC Scopus subject areas
- Building and Construction
- Civil and Structural Engineering
- Materials Science(all)
- Mechanics of Materials
Cite this
Concrete surface topography as a function of freeze-thaw exposure and abrasive blasting. / Millman, Lauren R.; Giancaspro, James W.
In: Journal of Materials in Civil Engineering, Vol. 27, No. 1, 04014100, 01.01.2014.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Concrete surface topography as a function of freeze-thaw exposure and abrasive blasting
AU - Millman, Lauren R.
AU - Giancaspro, James W
PY - 2014/1/1
Y1 - 2014/1/1
N2 - This study investigated the topography of plain concrete during freeze-thaw exposure and following abrasive blasting. The independent variables included the water-cementitious material ratio (w/cm) (0.42, 0.50, or 0.56); the number of freeze-thaw cycles (100, 200, or 300); and the blasting method (dry ice or sand). Using the three-dimensional (3D) surface roughness as the response parameter, the analysis of variance (ANOVA) results indicated that the number of freeze-thaw cycles is most influential in governing the measured roughness due to both freezing and thawing and abrasive blasting. The statistical data indicate that the roughnesses created by the blasting methods are not significantly different, which suggests that both dry ice and sand produced equivalent surface topography. However, qualitative examinations revealed that sand blasting generated a relatively uniform surface, whereas dry ice blasting created localized damage in the form of pitting. This effect may stem from differences in the flow behavior and size of the particles prior to impact with the substrate.
AB - This study investigated the topography of plain concrete during freeze-thaw exposure and following abrasive blasting. The independent variables included the water-cementitious material ratio (w/cm) (0.42, 0.50, or 0.56); the number of freeze-thaw cycles (100, 200, or 300); and the blasting method (dry ice or sand). Using the three-dimensional (3D) surface roughness as the response parameter, the analysis of variance (ANOVA) results indicated that the number of freeze-thaw cycles is most influential in governing the measured roughness due to both freezing and thawing and abrasive blasting. The statistical data indicate that the roughnesses created by the blasting methods are not significantly different, which suggests that both dry ice and sand produced equivalent surface topography. However, qualitative examinations revealed that sand blasting generated a relatively uniform surface, whereas dry ice blasting created localized damage in the form of pitting. This effect may stem from differences in the flow behavior and size of the particles prior to impact with the substrate.
KW - Concrete construction
KW - Deterioration
KW - Durability
KW - Erosion
KW - Particulate media
KW - Rehabilitation
KW - Sand
KW - Surface roughness
UR - http://www.scopus.com/inward/record.url?scp=84921265313&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84921265313&partnerID=8YFLogxK
U2 - 10.1061/(ASCE)MT.1943-5533.0001022
DO - 10.1061/(ASCE)MT.1943-5533.0001022
M3 - Article
VL - 27
JO - Journal of Materials in Civil Engineering
JF - Journal of Materials in Civil Engineering
SN - 0899-1561
IS - 1
M1 - 04014100
ER -