000004920 001__ 4920
000004920 005__ 20141119144604.0
000004920 04107 $$aeng
000004920 046__ $$k2002-06-02
000004920 100__ $$aWang, L.B.
000004920 24500 $$aQUANTIFICATION OF THE SPECIFIC SURFACE AREA OF AGGREGATE USING X-RAY TOMOGRAPHY

000004920 24630 $$n15.$$pProceedings of the 15th ASCE Engineering Mechanics Division Conference
000004920 260__ $$bColumbia University in the City of New York
000004920 506__ $$arestricted
000004920 520__ $$2eng$$aThis paper presents a new method using x-ray tomography imaging to quantify the specific surface area of aggregates. The method reconstructs the three-dimensional (3D) representation of individual particles and computes the specific surface area and the sphericity (a shape factor) of individual particles. The quantified specific surface area of a limestone aggregate in the sieve size range (3/8″-No.4) indicates that the specific surface area and the sphericity have a large variation among individual particles. However, the overall specific surface area of the aggregate particles within the same sieve size range can be accurately obtained using about 25-30 particles. It has been found that the specific surface area of the aggregates is much larger (84%) than that of the spheres of equivalent size.

000004920 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000004920 653__ $$a

000004920 7112_ $$a15th ASCE Engineering Mechanics Division Conference$$cNew York (US)$$d2002-06-02 / 2002-06-05$$gEM2002
000004920 720__ $$aWang, L.B.$$iFrost, J.D.
000004920 8560_ $$ffischerc@itam.cas.cz
000004920 8564_ $$s1640191$$uhttps://invenio.itam.cas.cz/record/4920/files/540.pdf$$yOriginal version of the author's contribution as presented on CD, .
000004920 962__ $$r4594
000004920 980__ $$aPAPER