Polymer soil stabilization with cement production, which can be as high as 1.25 tons of carbon dioxide per ton of cement. Polymer treatments modify the size, shape, and cohesion of soil aggregates by changing the interactions between soil particles. Because polymer-soil interactions occur on the surfaces of soil particles, the amount of surface area in the soil (in other words, its dominant particle size) is of great importance. Polymers have only weak interactions with the large sand- and silt-sized particles of soil, while they bond directly to finer clays. Although polymers mainly interact with the clay fraction of soils, they do change the
Rock Sand to his best position of second on the list of leading sires. On his four-year-old debut, Rock Sand ran against Sceptre again in June over the Derby course and distance in the Coronation Cup, a race which also featured the first meeting between Rock Sand and his contemporary Zinfandel, a colt whose engagements in the previous year's classics had been rendered void by the death of his owner Colonel Harry McCalmont. Zinfandel won easily from Sceptre, with Rock Sand third. Rock Sand avoided Zinfandel for the remainder of the season and was unbeaten in his remaining five races. He won