The present disclosure relates to a “concrete slotted floor” manufactured from an UHPC composition which exhibits superior crack resistance due to uniform distribution of reinforcing fibers even when a residing surface is located below, allows early demolding due to fast initial setting time and exhibits improved cleaning efficiency due to maximized surface water repellency, an “UHPC composition for manufacturing the same” and a “method for manufacturing a concrete slotted floor using the same”.

A method of manufacturing an expanded granular material comprises: forming a mixture comprising a silicate material, an alkali compound and water; curing the mixture to form a solid precursor; crushing and/or milling the solid precursor to form an expandable granular material; and heating the granular material to form an expanded granular material.

Disclosed herein are feedstock materials which can be used for the manufacture of industrial products and consumer goods. The feedstock materials comprise particles of a comminuted paper product having fibrous portions on an outer surface thereof distributed throughout a diagenetically formed mineral aggregate comprising gypsum, syngenite and magnesium hydroxide and/or magnesium sulphate. The feedstock material, and products produced therefrom, is adapted to degrade when buried. Also disclosed herein are methods for producing the feedstock materials, and products produced from the feedstock materials.

The present invention provides a bidirectional energy-transfer system comprising: a thermally and/or electrically conductive concrete, disposed in a structural object; a location of energy supply or demand that is physically isolated from, but in thermodynamic and/or electromagnetic communication with, the thermally and/or electrically conductive concrete; and a means of transferring energy between the structural object and the location of energy supply or demand. The system can be a single node in a neural network. The thermally and/or electrically conductive concrete includes a conductive, shock-absorbing material, such as graphite. Preferred compositions are disclosed for the thermally and/or electrically conductive concrete. The bidirectional energy-transfer system may be present in a solar-energy collection system, a grade beam, an indoor radiant flooring system, a structural wall or ceiling, a bridge, a roadway, a driveway, a parking lot, a commercial aviation runway, a military runway, a grain silo, or pavers, for example.

The present disclosure relates to an oyster settlement substrate technology, and particularly relates to a settlement substrate of Portland cement concrete and lightweight concrete for oyster and a preparation method thereof. According to the settlement substrate for inducing marine sessile organisms, an inducer is mixed to greatly improve the capability of rapid induction of settlement and metamorphosis of sessile organisms and promotion of long-term growth, and other properties of concrete are basically not affected; and the settlement substrate for inducing the marine sessile organisms can be used for construction of marine ecological engineering and corrosion prevention of marine concrete engineering.

The present invention provides a bidirectional energy-transfer system comprising: a thermally and/or electrically conductive concrete, disposed in a structural object; a location of energy supply or demand that is physically isolated from, but in thermodynamic and/or electromagnetic communication with, the thermally and/or electrically conductive concrete; and a means of transferring energy between the structural object and the location of energy supply or demand. The system can be a single node in a neural network. The thermally and/or electrically conductive concrete includes a conductive, shock-absorbing material, such as graphite. Preferred compositions are disclosed for the thermally and/or electrically conductive concrete. The bidirectional energy-transfer system may be present in a solar-energy collection system, a grade beam, an indoor radiant flooring system, a structural wall or ceiling, a bridge, a roadway, a driveway, a parking lot, a commercial aviation runway, a military runway, a grain silo, or pavers, for example.

A permeable floating concrete vessel for creating floating aquatic habitats is disclosed. The vessel includes an interior space to hold growth material and a plant. The vessels includes one or more channels so a root of the plant can extend through the channel and into a body of water in which the vessel is secured. The vessel is made from a buoyant material, such as water-permeable concrete material. In an exemplary embodiment the water-permeable concrete material includes a mixture of cement, glass microspheres, expanded glass aggregate, and microfibers. Two or more vessels may be connected together via a connecting member to form an array of the vessels.

A method for manufacturing green or thermally treated briquettes which are made up of at least one quick calcium-magnesium compound that is an iron-based compound. The method includes the steps of supplying a homogeneous pulverulent mixture to a roller press, the press having pockets where the pulverulent mixture is compressed to form the green briquettes. The rollers of the roller press develop linear speeds at the periphery of the rollers between 10 and 100 cm/s and linear pressures between 60 and 160 kN/cm. The method can also include a thermal treatment of the green briquettes to produce fired briquettes containing calcium ferrite, the briquettes having a Shatter Test Index less than 8%, and a porosity value greater than or equal to 30%.

The present invention provides a bidirectional energy-transfer system comprising: a thermally and/or electrically conductive concrete, disposed in a structural object; a location of energy supply or demand that is physically isolated from, but in thermodynamic and/or electromagnetic communication with, the thermally and/or electrically conductive concrete; and a means of transferring energy between the structural object and the location of energy supply or demand. The system can be a single node in a neural network. The thermally and/or electrically conductive concrete includes a conductive, shock-absorbing material, such as graphite. Preferred compositions are disclosed for the thermally and/or electrically conductive concrete. The bidirectional energy-transfer system may be present in a solar-energy collection system, a grade beam, an indoor radiant flooring system, a structural wall or ceiling, a bridge, a roadway, a driveway, a parking lot, a commercial aviation runway, a military runway, a grain silo, or pavers, for example.

Composition in the form of green or thermally treated briquettes comprising at least one quick calcium-magnesium compound and an iron-based compound, the method of production thereof and uses thereof.