The Strike-it™ method (patent pending) is being introduced as a new innovation for concrete quality assurance. This method provides is a fast, accurate, economical, non-destructive means of measuring the compressive strength of concrete and masonry units that can easily be performed at a job site without specialized equipment and training. can significantly improve concrete and masonry strength testing processes worldwide. For regions with well-developed QA processes, this provides an attractive prospect of augmenting and corroborating the results of existing methods. No other method provides a comparable combination of accuracy, efficiency, economy, and simplicity. Ultimately, the Strike-it™ method can save considerable time and cost, and increase the frequency and effectiveness of QA. Moreover, for regions where adherence to QA processes is lacking, the Strike-it™ method can be the an effective alternative for performing strength testing when conventional methods are not used or viable, thereby elevating the level of quality assurance in building construction and reducing the likelihood of catastrophic building failures. The Strike-it™ testers are designed to communicate with a centralized server so that comprehensive programs of strength testing, documentation, data storage and reporting can be implemented.