A seawall section includes a central hub having an axis extending in a longitudinal direction and three circumferentially spaced walls extending radially from the central hub. Each of the walls is made of cast concrete reinforced with a rebar cage having a plurality of longitudinally spaced pairs of parallel rebars extending radially from the central hub to an end rebar that extends perpendicularly relative to the parallel rebars. Each end rebar is connected to radially outer ends of one of the pairs of parallel rebars. A seawall comprises a plurality of the seawall sections connected together end-to-end with a cable, and connecting plates fastened to adjacent sections. A form for manufacturing the seawall section encloses connected rebars and is filled with concrete.

A seawall section includes a central hub having an axis extending in a longitudinal direction and three circumferentially spaced walls extending radially from the central hub. Each of the walls is made of cast concrete reinforced with a rebar cage having a plurality of longitudinally spaced pairs of parallel rebars extending radially from the central hub to an end rebar that extends perpendicularly relative to the parallel rebars. Each end rebar is connected to radially outer ends of one of the pairs of parallel rebars. A seawall comprises a plurality of the seawall sections connected together end-to-end with a cable, and connecting plates fastened to adjacent sections. A form for manufacturing the seawall section encloses connected rebars and is filled with concrete.

An aspect concerns a method (10) of producing a precast building product. The method (10) includes providing a mould (26) to receive a pourable building substance to be cured. The method further includes the steps of pouring the building substance into the mould and allowing the poured building substance to cure inside the mould to form a sold mass body. The method further includes providing a wire-cutting assembly operatively associated with the mould and cutting the solid mass body inside the mould into separate building products.

A process for making a layered multi-material structural element having controlled mechanical failure characteristics. The process includes the steps of: supplying a cementitious layer and forming a polymer layer on the cementitious layer by additive manufacture such that the polymer layer has a first thickness and the cementitious layer has a second thickness, wherein the polymer layer comprises a polymer and the cementitious layer comprises a cementitious material; and allowing the polymer from the polymer layer to suffuse into the cementitious layer for a period of time to obtain a suffused zone in the cementitious layer such that the suffused zone has a third thickness that is less than half the second thickness.

This invention is an additively manufactured wall panel using computer aided design (CAD) and computer aided manufacturing (CAM) to design and manufacture multi-colored and multi-layered wall panels. This results in a variety of highly attractive, multi-colored wall panel faces ranging from brick, colored grout lines and multi-colored stones to multi-colored geometric designs. The design and manufacturing process greatly reduces the amount of precast cementitious materials by efficiently using higher quality materials. This reduces cost and weight while simultaneously producing a much more comprehensive, multi-functional wall panel complete with an interior frame, exterior insulation and an air, vapor and moisture barriers.

In a general aspect, suction anchors are presented for securing structures to an underwater floor. The suction anchors include a tubular body formed at least in part of cementitious materials and having a closed end and an open end. The tubular body includes an edge defining an opening for the open end. The edge is configured to penetrate the underwater floor. The suction anchors also include a port configured to fluidly-couple a cavity within the tubular body to an exterior of the tubular body. The suction anchors additionally include a pad eye extending from an outer surface of the tubular body and configured to couple to a mooring line. In another aspect, methods of manufacturing the suction anchors are also presented.

In a general aspect, suction anchors are presented for securing structures to an underwater floor. The suction anchors include a tubular body formed at least in part of cementitious materials and having a closed end and an open end. The tubular body includes an edge defining an opening for the open end. The edge is configured to penetrate the underwater floor. The suction anchors also include a port configured to fluidly-couple a cavity within the tubular body to an exterior of the tubular body. The suction anchors additionally include a pad eye extending from an outer surface of the tubular body and configured to couple to a mooring line. In another aspect, methods of manufacturing the suction anchors are also presented.

A method of batch-casting high-fluidity high performance concrete and low-fluidity high performance concrete, wherein the method is capable of batch-casting high-fluidity high performance concrete for forming a girder portion of a bridge and low-fluidity high performance concrete for forming a deck plate portion of the bridge by using a concrete casting apparatus. Accordingly, the construction cost can be reduced and the construction period can be shortened. In addition, because a cold joint does not occur, durability can be improved, and thus the life of the bridge can be increased.

A method of batch-casting high-fluidity high performance concrete and low-fluidity high performance concrete, wherein the method is capable of batch-casting high-fluidity high performance concrete for forming a girder portion of a bridge and low-fluidity high performance concrete for forming a deck plate portion of the bridge by using a concrete casting apparatus. Accordingly, the construction cost can be reduced and the construction period can be shortened. In addition, because a cold joint does not occur, durability can be improved, and thus the life of the bridge can be increased.

Precast utility enclosure aprons for buried utility enclosures that have an angled top surface to direct water, ice and debris away from the center of the apron and to limit damage to the apron and utility enclosure caused by impacts to the apron.