Water repellent sand mixture and water repellent sand structure
AssigneePanasonic Corporation
InventorsAkira TAOMOTO, Norihisa MINO, Shoichi KIYAMA, Akira MURAKAMI, Toshihiko KAWACHI
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Abstract
A water repellent sand mixture includes at least water repellent sand and cement at a weight ratio of 2% or more and 5% or less relative to the water repellent sand. The mixture achieves condensation between the water repellent sand particles by the hydration reaction of the cement, which improves dynamic stability. The mixture can be kept in a block shape due to such improved dynamic stability, water repellency, and less slidable surfaces of the sand particles.
Claims18
A water repellent sand mixture comprising water repellent sand and cement,
- wherein the cement has a weight ratio of 2% or more and 5% or less relative to the water repellent sand.
A water repellent sand structure having a lower surface and a side surface, wherein
- the structure is composed of a mixture of water repellent sand and cement,
- the cement has a weight ratio of 2% or more and 4% or less relative to the water repellent sand, and
- when the weight ratio relative to the water repellent sand is denoted by x and an angle formed between the lower surface and the side surface is denoted by y, the angle y satisfies
- 0<y≦2.15×2−9.35x+43.3.
A water repellent sand structure having a lower surface and a side surface, wherein
- the structure is composed of a mixture of water repellent sand and cement,
- the cement has a weight ratio of 2% or more and 5% or less relative to the water repellent sand, and
- when the structure is 10 m or less in height or is more than 10 m in height, a height of the structure is denoted by h, and an angle formed between the lower surface and the side surface is denoted by y, the angle y satisfies
- 0<y≦1.08h2−30.99h+273.81.
Dependencies are inferred from the claim text.