The disclosure relates to embodiments of a thixotropic, non-cementitious, thermal grout and applications or methods of use of the grout related to horizontal directional drilling, trenchless technology, trenching, and installation of pipe, conduits, ducts, utility lines, and other product lines which may, e.g., be in trenches, underground, or under obstacles, such as a body of water or roadways.

A foaming agent for foaming a binder glue or a binding material slurry for producing air pore containing building materials, particularly filling, lightweight construction and insulating materials, consists of the following: a) 0.1 to 65.0 wt. % ionic, preferably anionic, foam-forming surfactant; b) 0.05 to 9.0 wt. %, preferably 1.0 to 7.0 wt. %, particularly preferably 2.0 to 6.0 wt. %, of at least one compound ELF-RG which is solid at room temperature, selected from the group consisting of ethoxylated long-chain fatty alcohols, ethoxylated natural resins, ethoxylated artificial resins and ethoxylated glycols; c) 0 to 9.0 wt. % fatty alcohol having a chain length of C10 to C18, preferably of C12 to C16; d) 0.1 to 60.0 wt. % of solvent selected from the group of vicinal diols having from 1 to 6 carbon atoms, diethylene glycol, triethylene glycol and diethylene glycol ethers; e) 0 to 20 wt. % of organic additives; f) 0 to 20 wt. % of pH regulators; g) from 0 to 99.75 wt. % of water,
wherein the mixture yields a total of 100 wt. %.

The embodiments herein are directed to dry wall waste mixtures, formed under pressure into example embodiments referred to herein as dry wall waste blocks (DWBs) and/or gypsum wallboard waste blocks (GWWBs) and tile structures. DWBs/GWWBs mixtures in particular, often incorporate a higher percentage in the composite mixtures from about 60% up to 85% of dry wall waste than other mixtures and beneficially often incorporates substantially all of the wallboard facing paper as part of the composite mixture. That is, waste processing is simplified by comingling core and paper layers in the final product. DWBs/GWWBs mixtures utilize demolition and construction waste, replacing a high percentage of Portland cement with waste-derived binder.

A mineral wool insulating product having improved off gassing characteristics is particularly adapted for high temperature applications.

The present invention refers to a new concrete composition comprising fiberglass waste and an air-entraining additive. The concrete presents a thermo-insulating performance far superior to conventionally produced concretes. The present invention is mainly intended for the construction industry, in non-structural applications for thermal insulation. The use of fiberglass waste reduces the consumption of natural aggregates and allows for the use of waste which is expense to dispose of.

The invention comprises a concrete form. The concrete form comprises a first panel having a first primary surface for contacting plastic concrete and a second primary surface opposite the first surface, wherein the first panel is made from a rigid plastic sheet or a metal sheet; and a second panel spaced from the second primary surface of the first panel, wherein the second panel is made from a rigid plastic sheet or a metal sheet. The concrete form also comprises a layer of insulating material disposed between the first panel and the second panel. A method of using the concrete form is also disclosed.

A process for the production of a mineral foam includes separately preparing a slurry of cement and an aqueous foam, wherein the cement slurry includes water and Portland cement as well as calcium silicate hydrate crystallization seeds; contacting the slurry of cement with the aqueous foam to obtain a slurry of foamed cement; and casting the slurry of foamed cement and leave it to set.

A hydraulically binding composition can be used to produce an inorganic fire-protection and/or insulation foam. The composition includes: (i) a hydraulic binder, (ii) a blowing-agent mixture, (iii) a thermally expandable compound, and (iv) optionally a foam stabilizer, where the at least one thermally expandable compound, depending on a particle size thereof and an adjusted density of a foamed composition, is present in a quantity such that a foam structure of the foamed composition is not destroyed by expansion thereof during heating of the composition above an onset temperature thereof.

A mineral wool insulating product having improved off gassing characteristics is particularly adapted for high temperature applications.

A method of making a structural lightweight and thermal insulating concrete is described. The concrete has a coarse aggregate partly replaced by recycled plastic pieces. This enables the concrete to maintain a high compressive strength, low thermal conductivity, and low weight, while providing a use for waste plastic. The waste plastic pieces may comprise polyethylene in the form of flakes, fibers, or granules. Due to its low unit weight, adequate compressive strength and high thermal resistance the developed concrete can be used as a structural lightweight and thermal insulating concrete. The use of this concrete leads to economic and environmental benefits.