USE OF CLASS C FLY ASHES FOR THE STABILIZATION OF AN EXPANSIVE SOIL. DISCUSSION AND CLOSURE

A discussion of an earlier paper with the aforementioned title by E. Cokca, published in this journal (Volume 127, Number 7, July 2001), is presented. The discusser states that the author has presented an interesting paper that enriches the literature and furthers knowledge on fly ash, especially as it concerns this product outside the U.S. Based on his experience in this field, the discusser offers some comments on: fly ash; the origin of coal; lime, cement, and fly ash; swelling potential; and x-ray diffraction and scanning electron microscopy, as they relate to the author's work. Closure from the author is included.