1. He developed a process for recovering phosphates from blast furnace slag . 2. The pozzolan is typically a fly ash, or blast furnace slag . 3. For example, some people consider blast furnace slag a cementitious material. 4. Blastfurnace slag cement may include up to 70 % ground granulated blast furnace slag . 5. They had never been paved other than with a scattering of blast furnace slag . 6. When blended with ground granulated blast furnace slag it can meet requirements for sulfate resistance and low heat. 7. In place of the standard heavier aggregate, lighter blast furnace slag , at half the weight, was substituted. 8. It saw considerable traffic, with coal and limestone passing southwards, and blast furnace slag making the return journey. 9. Room temperature hardening is more readily achieved with the addition of a source of calcium cations, often blast furnace slag . 10. A smaller company named Priola and Johnson, took open hearth and blast furnace slag and granulated it for other uses on the plant property.
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