【摘 要】
：
Calcium carbide Slag is one kind of industrial wastes from CaC2 hydrolysis reaction.The calcium carbide slag not only occupies the land, but also pollutes the surrounding environ.ent due to the long-t
【机 构】
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College of Material Science and Engineering, Beijing University of Technology, Beijing 100124, P R C
【出 处】
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The 14th International Congress on the Chemistry of Cement (
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Calcium carbide Slag is one kind of industrial wastes from CaC2 hydrolysis reaction.The calcium carbide slag not only occupies the land, but also pollutes the surrounding environ.ent due to the long-time piles-up.Calcium carbide slag can be a substitute for the natural limestone to produce cement clinker and also with a high portion of CaO as an excellent calcium raw material, thus, it not only reduces the pollution that the calcium carbide slag brings to the environment, but also reduces the exploitation of non-renewable resource-limestone.The main mineral phases of calcium carbide slag is Ca(OH)2, there are many differences in decomposition temperatures between the calcium containing raw materials.When calcium carbide Slag is added, the forming process of cement clinker and the major reactions happened in that process changes.The empirical equation for the calculating forming heats of cement clinker made of limestone is no longer applied for those made of calcium carbide Slag.In this paper, the empirical equation for fbrming heat calculation of calcium carbide slag added cement clinker is promoted and testified by acid dissolution experiments.Results show that the change of raw materials has great influence on the forming heat of cement clinker.Vhen the traditional raw materials are replaced with calcium carbide slag, the forming heat of cement clinker will reduce.Calculating the forming heat by our revised empirical equation can help reduce errors and bring great convenience for the calculation and evaluation of heat efficiency.This research provides theoretical underpinning for the study and calculation of forming heat of steel slag added cement clinker.
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