Cambridge university's Department of Engineering is taking part in a project to develop equipment that could help reclaim contaminated brownfield land for housing or commerce. According to the Environment Agency, in England and Wales alone there are an estimated 300,000 hectares of contaminated land at over 350,000 sites.Many brownfield sites are also unsuitable for buildings because of weak soil. Soil mix technology (SMT), which uses a range of tools and additives to mix soil with a cement binder, is one way land can be made safe.
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