High strength porous concrete structure and method of manufacturing the high strength porous concrete structure

A high strength porous concrete structure having a surface configuration corresponding to a surface configuration of an original object, manufactured by a method comprising the steps of:

• contacting a heated-to-melt thermoplastic material, which cures to an elastically deformable form, with a surface of the original object;
• curing the thermoplastic material to make the elastically deformable form;
• detaching the elastically deformable form from the original object;
• placing mortar or concrete into the elastically deformable form;
• and
• curing the mortar or concrete to obtain the high strength porous concrete structure, wherein a plurality of lumps whose surface configuration is similar to the surface configuration of the original object are interconnected and exposed to a surface of the high strength porous concrete structure and a gap is formed between said lumps through to a back side of the lumps,
• wherein the high strength porous concrete structure comprises a surface portion where the lumps are arranged within a certain thickness of the surface portion and a solid tightly filled backing portion and the lumps of the surface portion and the backing portion are integrally made of the same concrete.

A high strength porous concrete structure having a surface configuration corresponding to a surface configuration of an original object, manufactured by a method comprising the steps of:

• contacting a heated-to-melt thermoplastic material, which cures to an elastically deformable form, with a surface of the original object;
• curing the thermoplastic material to make the elastically deformable form;
• detaching the elastically deformable form from the original object;
• placing mortar or concrete into the elastically deformable form;
• and
• curing the mortar or concrete to obtain the high strength porous concrete structure, wherein a plurality of lumps whose surface is a configuration of rough aggregates are interconnected and exposed to a surface of the high strength porous concrete structure and a gap is formed between said lumps through to a back side of the lumps,
• wherein said lumps are arranged all over the thickness of the high strength porous concrete structure and are integrally formed of the same concrete.

A high strength porous concrete structure having a surface configuration corresponding to a surface configuration of an original object, manufactured by a method comprising the steps of:

• contacting a heated-to-melt thermoplastic material, which cures to an elastically deformable form, with a surface of the original object;
• curing the thermoplastic material to make the elastically deformable form;
• detaching the elastically deformable form from the original object;
• placing mortar or concrete into the elastically deformable form;
• and
• curing the mortar or concrete to obtain the high strength porous concrete structure, wherein a plurality of lumps whose configuration of the surface is a configuration of rough aggregates are interconnected and exposed to a surface of the high strength porous concrete structure and a gap is formed between said lumps through to a back side of the lumps,
• wherein the high strength porous concrete structure comprises a surface portion where the lumps are arranged within a certain thickness of the surface portion and a solid tightly filled backing portion and that the lumps of the surface portion and the backing portion are integrally made of the same concrete.

A high strength porous concrete structure having a surface configuration corresponding to a surface configuration of an original object, manufactured by a method comprising the steps of:

• contacting a heated-to-melt thermoplastic material in a melted condition, which cures to an elastically deformable form, with a surface of the original object;
• curing the thermoplastic material to make the elastically deformable form;
• detaching the elastically deformable form from the object;
• placing mortar or concrete into the elastically deformable form;
• and
• curing the mortar or concrete to form a surface layer and obtain the high strength porous concrete structure comprising a surface layer and a backing layer which has water permeability or a draining function and which is united with said surface layer,
• wherein said surface layer has an arrangement in which a plurality of lumps whose configuration is similar to a configuration of the original object and each of which is interconnected and exposed to a surface of the surface layer,
• that a gap is formed between said lumps through from the surface of said surface layer to a boundary between the surface layer and the backing layer, and
• that the lumps are integrally formed of the same concrete.

A high strength porous concrete structure having a surface configuration corresponding to a surface configuration of an original object, manufactured by a method comprising the steps of:

• contacting a heated-to-melt thermoplastic material in a melted condition, which cures to an elastically deformable form, with a surface of the original object;
• curing the thermoplastic material to make the elastically deformable form;
• detaching the elastically deformable form from the object;
• placing mortar or concrete into the elastically deformable form;
• and
• curing the mortar or concrete so as to form a surface layer and obtain the high strength porous concrete structure, comprising a surface layer and a backing layer which has water permeability or a draining function and which is united with said surface layer,
• wherein said surface layer has an arrangement in which a plurality of lumps which have a configuration of rough aggregates and each of which is interconnected and exposed to a surface of the surface layer,
• that a gap is formed between said lumps through from the surface of said surface layer to a boundary between the surface layer and the backing layer, and
• that the lumps are integrally formed of the same concrete.