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Key Technologies Research Of Electric Furnace Slag Used In The Cement And Concrete

Posted on:2012-03-25Degree:MasterType:Thesis
Country:ChinaCandidate:W L ChenFull Text:PDF
GTID:2132330335995022Subject:Industrial Engineering
Abstract/Summary:PDF Full Text Request
The low carbon economy, environmental protection and resources rebirth is the point research of the social economic development nowadays topic.Steel slag is a product of its crude steel production of around 20%. China's 2009 recycling rate of steel slag is 13%, recycling rate and more as a paving material. Steel and cement composition containing similar tricalcium silicate, dicalcium silicate and iron with calcium and other hard-gelling activity of mineral water will be pulverized into a fine powder of steel slag can replace part of cement and concrete used to achieve high added slag While the value of resource utilization, resource recycling, reducing energy consumption and reducing environmental pollution, with good prospects for development.Currently, performance and utilization of slag mainly concentrated in the converter slag, the slag of the furnace is relatively much less, especially for electric furnace steel slag for cement and concrete research on the commodity for less.In this paper, furnace slag as the research object, the key technical indicators cement flexural strength, compressive strength and stability for the pilot project, through experiments in the electric furnace slag cement powder after adding the flexural strength, compressive strength and stability of the Changes, understand the different cooling methods on the impact of furnace slag cubage stability, to understand furnace slag powder on cement and concrete stability of the situation; and technology through the results of experiments reasonable, cost-effective and reasonable electric furnace slag powder surface area values.Through research, the electric furnace slag raw materials into building materials industry for providing the market comply with GB / T 20491-2006 " steel slag powder used for cement and concrete" requirement to provide technical reference furnace steel slag, furnace slag high value-added benefit recovery, low-carbon economy, environmental protection, renewable resources, economic co-exist.
Keywords/Search Tags:electric furnace slag, electric furnace slag powder, activity index, cubage stability, specific surface area, Cement / Concrete
PDF Full Text Request
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