Having sufficient knowledge about the role of statistics in engineering helps the managers to control the system appropriately, minimize the costs and increase the productivity. Studies indicate that different quality improvement techniques implemented in recent years did not work properly in some cases due to the unwise application of statistics. Taguchi-based Six Sigma method is a newly introduced method that has borrowed strengths of Taguchi and Six Sigma to provide a more applicable tool for industries, construction works and service centers. It is the optimal setting combined of two-quality improvement techniques, which can be significantly effective in reducing the variation and defects of a manufacturing or producing process. This study aimed to test and evaluate the effectiveness of this new quality improvement model in optimizing the production process of a green construction material. Results of implementing indicated a significant progress about 50% in process performance that verify the effectiveness of Taguchi-based Six Sigma method on variation reduction and quality improvement.

充分了解统计数据在工程中的作用有助于管理人员适当地控制系统，最小化成本并提高生产率。研究表明，由于统计数据的不明智应用，近年来实施的不同质量改进技术在某些情况下无法正常工作。基于Taguchi的Six Sigma方法是一种新引入的方法，它借鉴了Taguchi和Six Sigma的优势，为工业，建筑工程和服务中心提供了更适用的工具。它是结合了两种质量改进技术的最佳设置，可以有效地减少制造或生产过程的变化和缺陷。这项研究旨在测试和评估这种新的质量改进模型在优化绿色建筑材料生产过程中的有效性。实施结果表明，在过程性能方面取得了约50％的重大进步，这证明了基于Taguchi的Six Sigma方法在减少变异和改善质量方面的有效性。