An improved manner of marking concrete is provided by an embedded concrete marking. The embedded concrete marking is made of concrete that is different than the concrete into which the marking is embedded. A method of creating an embedded concrete marking comprises identifying a location on the surface of concrete where an embedded concrete marking is to be created, cutting a trench into the surface of the concrete at the identified location, pouring a concrete mixture into the trench to a level where a float height of the concrete mixture is above the surface of the concrete, the concrete mixture being different when dry than the concrete into which the trench has been cut, letting the concrete mixture at least partially harden, and removing a portion of the hardened concrete mixture to create a top surface of the concrete mixture that will form an embedded concrete marking.

An improved manner of marking concrete is provided by an embedded concrete marking. The embedded concrete marking is made of concrete that is different than the concrete into which the marking is embedded. A method of creating an embedded concrete marking comprises identifying a location on the surface of concrete where an embedded concrete marking is to be created, cutting a trench into the surface of the concrete at the identified location, pouring a concrete mixture into the trench to a level where a float height of the concrete mixture is above the surface of the concrete, the concrete mixture being different when dry than the concrete into which the trench has been cut, letting the concrete mixture at least partially harden, and removing a portion of the hardened concrete mixture to create a top surface of the concrete mixture that will form an embedded concrete marking.

Systems and methods for treating concrete, which includes the steps of wetting a surface of concrete with colloidal silica, allowing time for the colloidal silica to penetrate the concrete surface, and cutting the surface of the concrete with a bladed or segmented tool wherein the longitudinal blade or edge portion is positioned approximately at an angle between 30 degrees and 90 degrees relative to the surface of the concrete.

Systems and methods for treating concrete, which includes the steps of wetting a surface of concrete with colloidal silica, allowing time for the colloidal silica to penetrate the concrete surface, and cutting the surface of the concrete with a bladed or segmented tool wherein the longitudinal blade or edge portion is positioned approximately at an angle between 30 degrees and 90 degrees relative to the surface of the concrete.

An anchor for connecting a concrete layer of a floor to a cellulosic layer of the floor, the cellulosic layer comprising a plurality of cellulosic members joined together in a side-by-side arrangement, the anchor including a first portion to extend between two adjacent cellulosic members of the cellulosic layer into the concrete layer of the floor. The first portion includes attachment structure to attach the first portion to one of the two adjacent cellulosic members of the cellulosic layer to attach the anchor to the cellulosic layer. An upper edge margin of the first portion is disposed within the concrete layer when the first portion is attached to the cellulosic layer. A second portion extends from the upper edge margin in a first direction that is transverse to the first portion. The second portion is spaced apart from the cellulosic layer and embedded within the concrete layer of the floor to attach the anchor to the concrete layer.

A grouting pan assembly includes a reinforcement ring. In another aspect, a grouting pan includes a substantially planar bottom surface and a curved sidewall surrounding the bottom surface. In a further embodiment, a grouting pan assembly includes a grouting pan having a post or mechanical fastener extending from a backside thereof for attachment to a reinforcing ring or layer.

An underlay cushioning sheet that is arranged on the surface of a foundation and that has a waterproof coating film formed thereon. The underlay cushioning sheet includes a cushioning layer having an overlay surface and a curing acceleration layer having a coating film formation surface on the opposite side from the overlay surface. A waterproof coating film including a polyurethane resin is formed on the coating film formation surface of the curing acceleration layer by applying a one pack-type liquid waterproofing material. The curing acceleration layer includes a reactive material capable of reacting with the liquid waterproofing material. The reactive material either (1) includes a functional group capable of reacting with an isocyanate included in the liquid waterproofing material or (2) reacts with a latent curing agent included in the liquid waterproofing material and generates a functional group capable of reacting with the components of the liquid waterproofing material.

An anti-explosion flooring material is disclosed. The material is prepared by foaming, modification and rust prevention treatment of an iron alloy material and other auxiliary materials having components in percentage by weight: 85% of iron, 8% of manganese, 6% of silicon, and the rest amount of carbon. Because a foaming agent and rare earth are added, the static conducting performance of the flooring material is improved.

An anti-explosion flooring material is disclosed. The material is prepared by foaming, modification and rust prevention treatment of an iron alloy material and other auxiliary materials having components in percentage by weight: 85% of iron, 8% of manganese, 6% of silicon, and the rest amount of carbon. Because a foaming agent and rare earth are added, the static conducting performance of the flooring material is improved.

The present invention relates to a multilayer floor decorative material comprising a foam layer, wherein the foam layer comprises a polyvinyl chloride resin, a plasticizer, a filler, a heat stabilizer and a foam stabilizer, the foam layer is formed by a mechanical foaming method, the heat stabilizer comprises barium stearate and zinc stearate, and the foam stabilizer is included in an amount of 1 to 10 parts by weight on the basis of 35 to 55 parts by weight of the polyvinyl chloride resin.