Waterstop having improved water and moisture sealing features
OwnerGérard Drouininventor
Life of this patent
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Abstract
An improved waterstop having the important added feature of a hydro expansive compound which expands when subjected to water. By expanding, the hydro expansive compound effectively blocks the passage of water that leaks into the gaps created during the shrinkage of the concrete surrounding the improved waterstop. All that is required are narrow strips of judiciously positioned hydro expansive compound at opposite ends of the improved waterstop.
Claims8
An improved waterstop to stop water from infiltrating, shaped like a ribbon having a height and two sides and comprising:
- ribs protruding perpendicularly from both its sides;
- expansion strips made of an hydro expansive compound;
- an oval core situated halfway along its height;
- two pairs of little horns situated proximal and on either sides of the oval core;
- each extremity along the height is terminated by a circular bulb;
- and, directly opposite each expansion strip, on the other side is a small convex shape protruding.
An improved waterstop to stop water from infiltrating, shaped like a ribbon having a height and two sides and comprising ribs protruding perpendicularly from both its sides, expansion strips made of an hydro expansive compound, an oval core situated halfway along its height, two pairs of little horns situated proximal and on either sides of the oval core, and each extremity along the height is terminated by a circular bulb, said waterstop having the following method of installation:
- inserting the waterstop in fresh concrete halfway between the two pairs of little horns situated proximal and on each side of the oval core, wherein the concrete density is 25 MPA, and
- using a 24.5 mm diameter head on a vibrator operating at 200 Hz and positioned vertically no closer than 15 cm from the waterstop.
Dependencies are inferred from the claim text.