Home Products Building Products Dense Aggregate Blocks Dense Aggregate blocks Masterdenz Eco Masterdenz ECO blocks are produced using a 30% reduction in embodied CO2 than our standard Masterdenz blocks while also containing a minimum of 20% non-primary materials. Masterdenz® A range of high strength concrete building blocks, robust, load bearing units for use in either internal or external walls in a variety of sizes, strengths and finishes offering total flexibility. First name Surname Email Company Get new captcha! What code is in the image? Enter the characters shown in the image. This question is for testing whether or not you are a human visitor and to prevent automated spam submissions. I consent to receive information on products and services Submit Leave this field blank