Abstract

A moulding method for gravity casting masonry blocks which uses a mould with a base and four swing down sides, allows for an outer layer to be cast of different density material and allows for a core to be used to mould hollow blocks. The base and four sides when lowered present an uppermost surface for efficient cleaning.

IPC Classes  ?

• B28B 7/04 - Moulds with adjustable parts one or more of the parts being pivotally mounted
• B28B 1/14 - Producing shaped articles from the material by simple casting, the material being neither forcibly fed nor positively compacted
• B28B 7/28 - CoresMandrels
• B28B 7/36 - Linings or coatings

Abstract

A method of forming and mixing a Portland cement based material incorporating expanded styrene beads with a liquid surfactant being added at the time of mixing the Portland cement and other ingredients. As well there is described a masonry product with expanded styrene beads and air bubbles distributed through the product with rehydrated Portland cement crystals distributed as aligned crystals located around the beads and other materials.

IPC Classes  ?

• C04B 16/08 - Macromolecular compounds porous, e.g. expanded polystyrene beads
• C04B 16/04 - Macromolecular compounds
• C04B 24/16 - Sulfur-containing compounds
• C04B 7/02 - Portland cement
• C04B 16/10 - Treatment for enhancing the mixability with the mortar
• C04B 24/34 - Natural resins, e.g. rosin

Abstract

A building block having a body with three sets of opposing outer sides defining thereby a generally rectangular outer shape, the body having at least one passageway having an upper open end at a top of the block and an open lower end at a bottom of the block. An inner part of the block is comprised of a first material, and a second different material surrounds the inner part providing thereby an at least substantially continuous outer surface of said second material. A one side of a one of the sets of opposing sides having at least one protrusion extending outwardly from a planar surface of the side, and at least one cavity in the further opposed side of the same set of opposed sides in a position and of a size to receive and effect an alignment of a further block having the same shape and size of this first defined block, by receiving a or the protrusions into the cavity or cavities.

IPC Classes  ?

• E04B 1/04 - Structures consisting primarily of load-supporting, block-shaped or slab-shaped elements the elements consisting of concrete, e.g. reinforced concrete, or other stone-like material
• E04C 1/00 - Building elements of block or other shape for the construction of parts of buildings