US 12,371,378 B2 · Structure protection sheet, concrete block, and method for manufacturing reinforced structure

Abstract

The present invention provides a structure protection sheet capable of dramatically reducing a construction period to place protective layers on surfaces of structures such as concrete, protecting the structures for a long time, preventing swelling phenomena caused by water vapor inside the concrete, and preventing a decrease in attachability. The present invention relates to a structure protection sheet including: a polymer cement cured layer on a side facing a structure; and a resin layer on the polymer cement cured layer, the structure protection sheet having a water vapor transmission rate of 10 to 50 g/m2·day.

Claims20

Dependent claims

A structure protection sheet comprising:

a polymer cement cured layer on a side facing a structure;
a resin layer on the polymer cement cured layer;
and
a mesh layer,
the structure protection sheet having a water vapor transmission rate of 10 to 50 g/m2·day,
the mesh layer having a structure in which warp and weft fibers are arranged in a lattice form, and
the mesh layer being present inside the polymer cement cured layer.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application

17/802,609Filed 2 Mar 2021

Priority

JP 2020-0362553 Mar 2020

Published

US 2023/0107548 A16 Apr 2023

Granted

29 Jul 2025

Term ends

Not estimatedThe source records don’t support an estimate.

Classification55 codes

C04B 28/04
Containing hydraulic cements other than calcium sulfates: portland cements
B32B 3/30
Characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or…
B32B 5/028
Characterised by structural features of a fibrous or filamentary layer: net structure, e.g. spaced apart filaments bonded at the crossing points
B32B 7/12
Interconnection of layers: using interposed adhesives or interposed materials with bonding properties

Structure protection sheet, concrete block, and method for manufacturing reinforced structure

Life of this patent

Structure protection sheet, concrete block, and method for manufacturing reinforced structure

Life of this patent

Abstract

Claims20