Compressive Strength in Compressed Earth Blocks. Comparison Between Different Test Methods

Abstract

In this article, the effect that the geometry of test samples possesses on the average compressive strength determination on compressed earth blocks or CEBs is evaluated, as well as analyzing the effect of heading them with neoprene plates, with the purpose of obtaining references from the experimental process developed that allow to propose the redaction of a technical norm of the Argentinian Institute of Normalization and Certification (IRAM). To this end, specific technical standards for CEB written by Official Standards Organizations from different countries were compiled and analyzed, and the current regulatory framework of Argentina on concrete blocks, hollow and solid ceramic bricks was analyzed. Using CEBs produced by different establishments around the country, tests samples with different geometries were made, and their compressive strength with and without neoprene plates heading was determined. The obtained results indicate that the most adequate test samples for non-confined compressive strength determination on CEBs are an entire block or halve CEB, both in horizontal position and without heading.