Sign up for
Participate with your entry in one of our professional or student awards.Sign up for an award
You are using an outdated browser. Please upgrade your browser to improve your experience.
Typically,sandbags are heavy and delay the establishment of flood-defence lines.
Defender is a new type of ‘sandbag’ that can be handled much more easily.
It does not contain sand.Rather,it absorbs water.It has a shell of impermeable material,of which one long edge is open.This edge is positioned towards the water.Inside Defender is absorbent recycled paper fibre.When it is dry,the fibre is lightweight.Defender can be handled easily.When it absorbs floodwater,the fibre becomes heavy with the weight of the water.This concept not only makes flood control easier and more efficient,but save valuable soil resources.
TENG Xuan ZHANG Mingxi YANG Zhaonan ZHEN Zhiliang