... less water to achieve the same results. The use of urea as a superplasticiser is promising, as it breaks hydrogen bonds... in the Journal of Cleaner Production, found that urea and naphthalene-based superplasticizers retain their shape under external...
... - where 100 percent represents a fully autonomous unit – 100 percent of water was recycled, recovery of nitrogen from urea was 99.7 percent efficient and microbial waste degradation rate of solid waste was 67 percent. This and other...