Using LADAR to Characterize the 3-D Shape of Aggregates: Preliminary Results.
Using LADAR to Characterize the 3-D Shape of Aggregates:
Garboczi, E. J.; Cheok, G. S.; Stone, W. C.
Cement and Concrete Research, Vol. 36, No. 6,
1072-1075, June 2006.
aggregates; concretes; lasers; x-ray tomography; rocks
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.