Described are cementitious reagent materials produced from globally abundant inorganic feedstocks. Also described are methods for the manufacture of such cementitious reagent materials and forming the reagent materials as microspheroidal glassy particles. Also described are apparatuses, systems and methods for the thermochemical production of glassy cementitious reagents with spheroidal morphology. The apparatuses, systems and methods make use of an in-flight melting/quenching technology such that solid particles are flown in suspension, melted in suspension, and then quenched in suspension. The cementitious reagents may be combined with Portland cement and an alkali activator to form a blended cement. The cementitious reagents can be used in concrete to substantially reduce the CO.sub.2 emission associated with cement production.

A method for the kinetic regulation of cementitious binders and/or cementitious binder compositions, the method including the steps of providing a cementitious binder, admixing at least one borate mineral to said cementitious binder, and optionally admixing an activator selected from the group consisting of CaO, Ca(OH).sub.2, and/or CaSO.sub.4.

A method for the kinetic regulation of cementitious binders and/or cementitious binder compositions, the method including the steps of providing a cementitious binder, admixing at least one borate mineral to said cementitious binder, and optionally admixing an activator selected from the group consisting of CaO, Ca(OH).sub.2, and/or CaSO.sub.4.

Compositions and methods related to providing an object with metallic and reflective qualities when illuminated with ultraviolet light are provided herein. Such compositions generally comprise reflective metal flakes and ultraviolet-luminescent pigments. Also provided are methods for making compositions comprising reflective metal flakes and ultraviolet-luminescent pigments and for applying a composition comprising reflective metal flakes and ultraviolet-luminescent pigments to an object.

The invention relates to a composite material that makes use of cement stone of a MgO- and/or olivine-based binder and reinforcing elements for increasing the load-bearing capacity, wherein the reinforcing elements are resistant to pH values of less than 11 and/or have a protection against pH values of less than 11. Additionally or alternatively, agents for raising the pH value of the pore solution of the cement stone can be added to the MgO- and/or olivine-based binder of the cement stone.

The invention relates to a composite material that makes use of cement stone of a MgO- and/or olivine-based binder and reinforcing elements for increasing the load-bearing capacity, wherein the reinforcing elements are resistant to pH values of less than 11 and/or have a protection against pH values of less than 11. Additionally or alternatively, agents for raising the pH value of the pore solution of the cement stone can be added to the MgO- and/or olivine-based binder of the cement stone.