The Influence of Test Location, Face Types, and Moisture Content on the Rebound Hammer Test of Clay Bricks

Abstract

This paper presents laboratory investigations on clay bricks using the Schmidt hammer test to assess their properties. The study includes the standard compression test to establish the correlation between compressive strength and rebound value obtained from Schmidt rebound hammer test. Additionally, the GANN hydrometer is employed as a non-destructive method to measure surface moisture content. The research examines the influence of test location, surface type, surface moisture content, and surface cracks on the rebound value. The findings highlight the significant influence of these parameters on both rebound value and compressive strength. To address these effects, the study proposes empirical equations for estimating compressive strength based on rebound value, accounting for the various factors involved. Overall, this research offers valuable insights into understanding and predicting the behavior of clay bricks.