Title:
Limestone Crusher-Run and Tailings in Compaction Concrete for Pavement Applications
Author(s):
Antonio Nanni
Publication:
Materials Journal
Volume:
85
Issue:
3
Appears on pages(s):
158-163
Keywords:
aggregate gradation; aggregates; compacting; limestone; wastes; compressive strength; fineness modulus; pavements; roller compacted concrete; Materials Research
DOI:
10.14359/1816
Date:
5/1/1988
Abstract:
Laboratory experimentation indicates that both limestone crusher-run and finely grained limestone tailings (by-products of the aggregate-mining industry) can be used in compaction concrete, made with an emerging technology for flatwork construction known as roller compacted concrete (RCC). This paper reports on tests of laboratory specimens using various combinations of mix components and proportions. The unit cost of concrete progressively decreases as the coarse-graded aggregate is substituted with the crusher-run and as the tailings are added. On the other hand, the compressive strength of mixtures including the crusher-run is better than that of graded coarse aggregate and is further improved by the addition of tailings.