A preparation method for a concrete additive for a maritime work environment includes: S1, compounding a volcanic ash material containing aluminum oxide and lime in proportion, loading a mixture into a sugar coating machine, and spraying a proper amount of alcohol, to prepare spherical particles; S2, adding the spherical particles in S1 and cement into the sugar coating machine, uniformly spraying deionized water in a rotating process, and coating surface layers of the spherical particles with a layer of cement for maintenance; and S3, placing the maintained particles in S2 into a hydrophobic emulsion, and coating the surface layers of the particles with a layer of hydrophobic emulsion, to obtain a concrete additive.

Some embodiments of the present disclosure relate to a roofing material, wherein the roofing material may comprise a plurality of coated roofing granules, wherein each of the plurality of the coated roofing granules may comprise a roofing granule having an outer surface; and a granule coating, wherein the granule coating is disposed on at least a portion of the outer surface of the roofing granule, and wherein the granule coating comprises graphene. Some embodiments of the present disclosure relate to a roofing material, wherein the roofing material may further comprise a reflective base coating, wherein the reflective base coating is positioned between the outer surface of the roofing granule and the granule coating.

Some embodiments of the present disclosure relate to a roofing material, wherein the roofing material may comprise a plurality of coated roofing granules, wherein each of the plurality of the coated roofing granules may comprise a roofing granule having an outer surface; and a granule coating, wherein the granule coating is disposed on at least a portion of the outer surface of the roofing granule, and wherein the granule coating comprises graphene. Some embodiments of the present disclosure relate to a roofing material, wherein the roofing material may further comprise a reflective base coating, wherein the reflective base coating is positioned between the outer surface of the roofing granule and the granule coating.

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.

A preparation method for a concrete additive for a maritime work environment includes: S1, compounding a volcanic ash material containing aluminum oxide and lime in proportion, loading a mixture into a sugar coating machine, and spraying a proper amount of alcohol, to prepare spherical particles; S2, adding the spherical particles in S1 and cement into the sugar coating machine, uniformly spraying deionized water in a rotating process, and coating surface layers of the spherical particles with a layer of cement for maintenance; and S3, placing the maintained particles in S2 into a hydrophobic emulsion, and coating the surface layers of the particles with a layer of hydrophobic emulsion, to obtain a concrete additive.

Plastisol compositions are provided, in which the plastisol compositions include a bio-based plasticizer comprising one or more epoxy groups and a polymeric resin dispersed throughout the bio-based plasticizer. The plastisol composition comprises a flowable material that can be coated onto substrates. Coated fibers including an inorganic fiber indirectly or directly at least partially coated with a plastisol composition comprising a bio-based plasticizer and a polymeric resin dispersed throughout the solidified bio-based plasticizer are also provided. Cementitious boards reinforced with inorganic fibers, such as mesh scrims, that include a solidified bio-based plasticizer coating applied thereto are also provided.

Plastisol compositions are provided, in which the plastisol compositions include a bio-based plasticizer comprising one or more epoxy groups and a polymeric resin dispersed throughout the bio-based plasticizer. The plastisol composition comprises a flowable material that can be coated onto substrates. Coated fibers including an inorganic fiber indirectly or directly at least partially coated with a plastisol composition comprising a bio-based plasticizer and a polymeric resin dispersed throughout the solidified bio-based plasticizer are also provided. Cementitious boards reinforced with inorganic fibers, such as mesh scrims, that include a solidified bio-based plasticizer coating applied thereto are also provided.

Disclosed is settlement substrate for oyster technology, and, in particular, the present disclosure relates to a concrete settlement substrate for oyster and a preparation method thereof, and a construction method. The concrete settlement substrate for oyster has the characteristics of induction of rapid settlement and metamorphosis of sessile organisms thereto, promotion of long-term growth and good durability, and the oysters are settled on a surface of concrete. A reasonable spatial layout is utilized, such that each concrete pile (block) can effectively break waves and ensure smooth exchange between water bodies on two sides. After oysters settled to each concrete pile (block) breed a large amount, the water bodies can be purified, and the ecological environment in the surrounding sea area can be improved.

The present invention is directed to a reinforced building block made of autoclaved aerated concrete (AAC) comprising rebars formed essentially from A) at least one fibrous carrier and B) and a hardened composition formed from B1) at least one epoxy compound and B2) at least one diamine and/or polyamine in a stoichiometric ratio of the epoxy compound B1) to the diamine and/or polyamine component B2) of 0.8:1 to 2:1, as matrix material, and C) optionally further auxiliaries and additives and to methods of production thereof