Dredged marine sediment binder with wasted concrete and cement I don't know how to binder them?
Concrete Ideas for Reducing Concrete Waste
By Michelle Volkmann
A leader in effective concrete recycling is the Colorado-based Recycled Materials Company Inc. RMCI specializes in construction services for the removal of concrete, processing of concrete rubble into specification aggregates, subgrade preparation and sub-base installation for interstate highway and airport projects, according to its website. RMCI gained attention with the demolition and recycling of 6.5 million tons of aggregate at Denver’s former Stapleton International Airport.
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http://www.sustainablecitynetwork.com/topic_channels/development/article_f55ebdda-9c31-11e4-8821-f76d12cbc51b.html
In cement based materials, calcined (at 650°C or more) dredged sediments can be used for filler or cement substitution in small quantities depending on grain size distribution of sediments and its chemical activity.
Dear
The wasted concrete could be milled, crushed to different sizes as aggregates, then may be used as traditional aggregates for concrete mix design. it is also suitable to be used as partial substitute of virgin aggregates.
Do you know the reaction occurs between them? How about the ratio to mix them?
20% replacement of RCA of NA in concrete mixture found to be not adversely affect concrete feresh and hardened peroperties
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