- Author
-
Garboczi, E. J.
|
Cheok, G. S.
|
Stone, W. C.
- Title
- Using LADAR to Characterize the 3-D Shape of Aggregates: Preliminary Results.
- Coporate
- National Institute of Standards and Technology, Gaithersburg, MD
- Journal
-
Cement and Concrete Research,
Vol. 36,
No. 6,
1072-1075,
June 2006
- Keywords
-
aggregates
|
concretes
|
lasers
|
x-ray tomography
|
rocks
- Identifiers
- laser detection and ranging (LADAR); measured (means) and numerical (num) values of volume, length, width and thickness for rocks 1 and 2
- Abstract
- Previous publications have shown how a combination of X-ray computed tomography and spherical harmonic series could be used to characterize the 3-D shape of rocks used for aggregates in concrete. The X-ray computed tomography was used to obtain the raw 3-D numerical data for the coordinates of the aggregate surface. In this paper, we demonstrate how laser detection and ranging (LADAR) numerical data can replace X-ray computed tomography data and be used in conjunction with spherical harmonic series analysis to analyze the 3-D shape of aggregates.