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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Particle shape and size and their effect on the results of the ASTM C-1260 test method.
Author(s): José M. Cosentino; Jorge D. Sota; Fabián A. Avid
Appears on pages(s): 14-24
Keywords: grinding, jaw, hammer, expansion, ASTM C-1260, particle shape, interlaboratory testing, reactivity, ASR
Abstract:Different grinding methods and its influence on expansions measured by ASTM C-1260 are evaluated. Modes and particle shape obtained in two types of crushing equipment, a jaw crusher and a hammer mill are analyzed. Through macro and micro observations and additional testing, it can be established that the comminution procedure influence the expansion measures. Results shown in this paper suggest that the grinding method (hammer crushing) should be specified to obtain traceable results in interlaboratory testing, as well as measuring the maximum expansion to quantify the degree of reactivity of aggregates.
Mexican Institute of cement and concrete, International Partner Access.
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