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  2. Puddling (civil engineering) - Wikipedia

    en.wikipedia.org/wiki/Puddling_(civil_engineering)

    Puddle has to be kept wet in order to remain waterproof so it is important for canals to be kept filled with water. The clay is laid down with a tool called a 'punner', or 'pun', a large rectangular block on a handle about 5 feet (1.5 m) long, or trodden down, or compacted by some other means (e.g. by an excavator using the convex outside of ...

  3. Hydrophobic concrete - Wikipedia

    en.wikipedia.org/wiki/Hydrophobic_concrete

    Underwater use of hydrophobic concrete is a major application in marine facilities. Is often used to hold water to create pools and ponds. NASA used hydrophobic concrete to build the swimming pool used to train astronauts for walking on the Moon. Hydrophobic concrete is also used in applications that are exposed to rain or rain puddling, such ...

  4. Waterproofing - Wikipedia

    en.wikipedia.org/wiki/Waterproofing

    Masonry walls are built with a damp-proof course to prevent rising damp, and the concrete in foundations needs to be damp-proofed or waterproofed with a liquid coating, basement waterproofing membrane (even under the concrete slab floor where polyethylene sheeting is commonly used), or an additive to the concrete. Within the waterproofing ...

  5. Ponding - Wikipedia

    en.wikipedia.org/wiki/Ponding

    In civil engineering, ponding is the (typically) unwanted pooling of water, typically on a flat roof or roadway. Ponding water accelerates the deterioration of many materials, including seam adhesives in single-ply roof systems, steel equipment supports, and particularly roofing asphalt.

  6. Pond - Wikipedia

    en.wikipedia.org/wiki/Pond

    A Retention pond guarded by concrete wall and surrounded by Taro plants in an urban area. As urbanization continues to spread, retention ponds are becoming more common in new housing developments. These ponds reduce the risk of flooding and erosion damage from excess storm water runoff in local communities. [26]

  7. Spot of beloved Brooklyn sidewalk fish pond covered by cement ...

    www.aol.com/spot-beloved-bed-stuy-sidewalk...

    The fish pond was first made in August, when a group of locals decided to put about 30 goldfish into the roughly two inches of water that had collected in the hole due to the dripping hydrant.

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