A Measurement of Strength for Artificial Lightweight Aggregate
Noriyoshi HARADA, Tomoyuki SUGAYA,@Masateru NAMBU and@Yasufumi TERAMITSU
Abstract:The method of British Standard (BS) for mineral aggregate has an advantage that can statistically evaluate the strength of a large number of aggregates in one time. But we could not find any correlation of BS crushing value and strength of an artificial lightweight aggregate, which has high strength and low water absorption, newly produced by Taiheiyo Cement Corporation. By compression, fragments from crushed aggregates fill spaces inside the cylinder that would increase friction between piston and cylinder. It is studied a new method to press a large number of aggregates, which array in one layer, and here we call this method as 'monolayer loading test'. As a result, we could find a good relation between values of monolayer loading test and compressive strength of the aggregate. By this method, we can evaluate the strength of the artificial lightweight aggregate statistically. Key Words:Artificial Aggregate, Lightweight Aggregate, British Standard Method, Crushing Load, Compressive Strength, Monolayer Loading Test, Quality Control Test