Modal Determination of the Effect of Bond Between Coarse Aggregate and Mortar on the compressive Strength of Concrete

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Title: Modal Determination of the Effect of Bond Between Coarse Aggregate and Mortar on the compressive Strength of Concrete

Author(s): Palle Nepper-Christensen and Tommy P. H. Nielsen

Publication: Journal Proceedings

Volume: 66

Issue: 1

Appears on pages(s): 69-73

Keywords: alkali-aggregate reactions; bond (paste to aggregate); cement pastes; coarse aggregates;compressive strength; glass aggregate;mortars (material) ; plain concrete.

Date: 1/1/1969

Abstract:
Summarizes a longer report describing an experimental investigation which compared compressive strength of concrete made with glass marbles as the coarse aggregate with the compressive strength of concrete in which the bond between mortar and glass marbles was raised by coating the marbles with a thin layer of soft plastic. It is concluded that coating reduces the compressive strength by up to 2.5 times, the strength reduction being almost proportional to the volumetric content of glass marbles in the concrete.