Feasibility of Producing Large-Sized, High-Strength Motor & Concrete Cubes

This study was conducted to demonstrate the feasibility of producing relatively large mortar and concrete products (12-inch or 30 cm cubes) which possess ultrahigh strengths as a result of high-pressure compaction at pressures up to 16,000 psi (110 Mpa). Mortar and concrete cubes, possessing very high compressive strengths at very early ages, were produced, using high-pressure compaction. Mortar strengths in excess of 9,000 psi (60 Mpa) were produced at 1 day of age, although the mix designs were not optimized. The strengths continued to increase, although slowly, with continued curing. (Author)