Business

Alibaba withdraws Hong Kong IPO for logistics arm

Chinese e-commerce titan Alibaba is withdrawing a planned initial public offering for its logistics arm Cainiao, the company said Tuesday, as a major company overhaul faces setbacks.

Engineering

New concrete possibilities from waste materials

The use of recycled concrete and glass aggregates in concrete production has emerged as a highly promising means of increasing the recycling rate of waste materials—but durability issues have plagued some combinations of ...

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