Low-alkaline cement for radioactive waste disposal created from rice chaff

A team at Osaka University has co-developed a method to produce low alkaline cement, a material that greatly improves the long-term performance of grout-based radioactive waste disposal solutions by avoiding reactivity problems with groundwater, which can lead to the deterioration of clay and bedrock. This method involves using low-cost silica dioxide extracted from rice chaff as an additive in cement, and is of potentially global utility.

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