1970's 

The 1970s saw proven concrete techniques, developed over the previous decades, stretch the boundaries of modern design. All across the globe, Master Builders brand products were taking on engineering challenges and aiding construction of some of the world’s most cutting edge structures.

The Sydney Opera House was completed in 1973, using 10,000 cubic yards of controlled-performance concrete containing Master Builders brand POZZOLITH® admixture. The expedited strength development and consistent workability achieved with POZZOLITH helped make this long-awaited structure a reality.

Completed that same year, Chicago’s Sears Tower stood as the world’s tallest building for nearly 40 years. It is supported at its very foundation by Master Builders EMBECO® Grout, a metallic-aggregate grout that enabled the Sears Tower to reach heights that were not previously possible. The well graded blend of aggregate provided lasting strength to the base, allowing it to rise above the Chicago skyline.

With advances in admixture technology by the Master Builders product development team in the 70s, high-strength concrete took on new meaning by allowing concrete to reach unprecedented strengths up to 9,000. psi. Soon, even these record-breaking strengths would be surpassed and Master Builders products would lead the way.

Learn more about these Master Builders brand products introduced in the 1970s:

EMBECO® Grout

POZZOLITH® admixiture