A premixed photoluminescent composition and related hardened form and method of forming joints for pavers or stones. The premixed photoluminescent composition comprises solid aggregates; a photoluminescent particulate component adapted to emit light when photoexcited; and a binder. When in contact with an activator, oxygen or water, the binder is adapted to harden into a water-resistant binder matrix that bonds the solid aggregates and embeds the photoluminescent particulate component. In use, the water-resistant binder matrix has a transparency allowing transmission of at least a portion of the light emitted by the photoluminescent particulate component.

A composition that may include a resin, plastic aggregate, plastic fines, and optionally fly ash. The plastic aggregates and plastic fines may be formed from recycled plastic. The composition may be utilized to repair damaged surfaces, including damages concrete surfaces. The composition may further be used in pre-formed structures. The pre-formed structures may include panels that are assembled to form an upright enclosure, such as a shelter.

In one aspect, composite polymeric composition and related materials are described herein employing waste products from the agricultural and energy industries. Such composite polymeric compositions and materials can repurpose agricultural and petroleum waste products for various applications including, but not limited to, building and/or infrastructure materials. In some embodiments, a composite polymeric composition described herein comprises polysaccharides, lignin or combinations thereof covalently cross-linked via linkages comprising sulfur.

In one aspect, composite polymeric composition and related materials are described herein employing waste products from the agricultural and energy industries. Such composite polymeric compositions and materials can repurpose agricultural and petroleum waste products for various applications including, but not limited to, building and/or infrastructure materials. In some embodiments, a composite polymeric composition described herein comprises polysaccharides, lignin or combinations thereof covalently cross-linked via linkages comprising sulfur.

Presented and described is a method for manufacturing concrete elements having at least one concrete layer, wherein concrete for at least one element is introduced into a mould, the concrete is compacted by vibration and/or by tamping and subsequently cures, wherein to the concrete layer, prior to compaction, at least one portion of a granular material is applied by means of an application device, where the concrete introduced into the mould has a water/binder (w/b) ratio of 0.30 to 0.50 prior to curing and where as granular material a material is used comprising (a) a scatter component having an average particle diameter of 0.1 to 5 mm in an amount of 65 to 95 wt % and (b) binder in an amount of 5 to 35 wt %, based in each case on the overall composition of the granular material.

Presented and described is a method for manufacturing concrete elements having at least one concrete layer, wherein concrete for at least one element is introduced into a mould, the concrete is compacted by vibration and/or by tamping and subsequently cures, wherein to the concrete layer, prior to compaction, at least one portion of a granular material is applied by means of an application device, where the concrete introduced into the mould has a water/binder (w/b) ratio of 0.30 to 0.50 prior to curing and where as granular material a material is used comprising (a) a scatter component having an average particle diameter of 0.1 to 5 mm in an amount of 65 to 95 wt % and (b) binder in an amount of 5 to 35 wt %, based in each case on the overall composition of the granular material.

Provided is a fiber material for cement reinforcement, configured such that a resin A containing an isocyanate compound as a constituent component is present inside a fiber bundled body, and a resin B containing an epoxy resin as a constituent component is present on a surface of the fiber bundled body. Further, it is preferable that the resin A contains a polyol or an epoxy compound as a constituent component in addition to the isocyanate compound, the resin B contains an acrylic-modified epoxy resin or a bisphenol-A epoxy resin as a main component, the fiber bundled body has a tensile strength of 7 cN/dtex or more, and the fiber bundled body includes 50 to 3,000 single fibers. The invention is also addressed to a concrete or mortar molded article using the above fiber material for reinforcement.

Provided is a fiber material for cement reinforcement, configured such that a resin A containing an isocyanate compound as a constituent component is present inside a fiber bundled body, and a resin B containing an epoxy resin as a constituent component is present on a surface of the fiber bundled body. Further, it is preferable that the resin A contains a polyol or an epoxy compound as a constituent component in addition to the isocyanate compound, the resin B contains an acrylic-modified epoxy resin or a bisphenol-A epoxy resin as a main component, the fiber bundled body has a tensile strength of 7 cN/dtex or more, and the fiber bundled body includes 50 to 3,000 single fibers. The invention is also addressed to a concrete or mortar molded article using the above fiber material for reinforcement.

The present invention relates to a method for producing aggregates from concrete residues which are not used for construction purposes or, more generally, from cement mixtures which are unused for any reason and returned to the production facility in the truck mixer. The present invention also relates to the material obtained by said process and its use as an aggregate for concrete production or other applications.

The present invention relates to a method for producing aggregates from concrete residues which are not used for construction purposes or, more generally, from cement mixtures which are unused for any reason and returned to the production facility in the truck mixer. The present invention also relates to the material obtained by said process and its use as an aggregate for concrete production or other applications.