| 摘要 |
<p>PURPOSE: A blending material composition for concrete second products is configured to make the production of concrete second products having excellent compressive strength possible, so that the composition can be a productive alternative when processing byproducts such as byproduct ash of an oil refining process, super fine fly ash, and industrial byproducts like waste catalysts of an FCC process. CONSTITUTION: A blending material composition for concrete second products comprises mixed powder composition with blast furnace slag fine particles and byproduct ash of the oil refining process and gypsum. The byproduct ash of the oil refining process is generated by burning cokes, a byproduct of the oil refining process, with limestone at 800-900°C. The mixed powder composition is included as 50% by weight or less (except for 0% by weight) and the gypsum is included as 20-60% by weight based on 100% by weight of the mixed powder composition. The mixed powder composition also includes super fine fly ash with the Blaine fineness of 8,000-13,000 cm^3/g and waste catalysts of the FCC process during the oil refining process. The byproduct ash of the oil refining process, super fine fly ash and waste catalysts of the FCC process are included as 50% by weight (except for 0% by weight ) of the mixed powder composition. The byproduct ash of the oil refining process has 30-60% by weight of CaO, 10-40% by weight of SO_3, and 0.1-5% by weight of MgO.</p> |
