The invention relates to a sealing wall building material, which has a binding agent with cement and aggregates. It is provided according to the invention that the binding agent comprises a mixture of cement and fly ash, wherein it is free of clay material, and that it has an impermeability with a kf value of 10.sup.−7 m/s and less.

The invention relates to a sealing wall building material, which has a binding agent with cement and aggregates. It is provided according to the invention that the binding agent comprises a mixture of cement and fly ash, wherein it is free of clay material, and that it has an impermeability with a kf value of 10.sup.−7 m/s and less.

The present disclosure relates to the technical field of solid waste recycling and fabricated buildings, and provides a solid waste large-mixing-amount concrete prefabricated laminated slab and a preparation method thereof. The solid waste large-mixing-amount concrete prefabricated laminated slab provided by the present disclosure comprises a prefabricated layer and a laminated layer. Transverse grooves and longitudinal grooves are formed in the surface of the prefabricated layer. During application, the grooves can be used for erecting pipelines, the contact area of the prefabricated layer and the laminated layer can also be increased, the combined effect of new concrete and old concrete is improved, the integrity of a floor slab is enhanced, and the effect of improving the overall stress capacity of the floor slab is achieved.

A method of making building materials from an aqueous solution includes receiving the aqueous solution with dissolved ions and increasing a pH of the aqueous solution so the dissolved ions precipitate from the aqueous solution as salt. The method also includes collecting the salt precipitated from the aqueous solution and forming the building materials from the salt.

A method of utilizing contaminated water for soil stabilization operations or for the preparation of aggregates for use in asphaltic mix designs. A method where soil is evaluated for a soil typed and characteristic and a classified mixture of contaminated water is selected based on the soil type and characteristics. A reagent is selected based on the soil type and characteristics and the selected water mixture. The reagent and water mixture are then mixed to form a modified calcium hydroxide that is then applied to the soil.

A method where an aggregated is desired to have better adherent qualities within the mix design for better performance is selected and the surface water reduced/removed through the use of a select reagent and contaminated water.

A method of utilizing contaminated water for soil stabilization operations or for the preparation of aggregates for use in asphaltic mix designs. A method where soil is evaluated for a soil typed and characteristic and a classified mixture of contaminated water is selected based on the soil type and characteristics. A reagent is selected based on the soil type and characteristics and the selected water mixture. The reagent and water mixture are then mixed to form a modified calcium hydroxide that is then applied to the soil.

A method where an aggregated is desired to have better adherent qualities within the mix design for better performance is selected and the surface water reduced/removed through the use of a select reagent and contaminated water.

A pervious concrete composition comprising a superabsorbent polymer in a proportion of 0.03 0.07 wt. % cement, preferably about 0.045 wt. % of cement, thereby enabling a water:cement ratio of 0.35 0.50. The superabsorbent polymer can be a cross-linked sodium polyacrylate-acrylamide/acrylic acid copolymer, and is introduced in powdered form to a concrete mix, wherein it is hydrated during the mixing process. The pervious concrete compositions herein can therefore be made with a desirable water:cement ratio and without the need for water-reducers or viscosity modifying additives. The invention further comprises methods of installing the pervious concrete compositions.

A mortar composition, which includes (i) a treated palm oil fuel ash, wherein the treated palm oil fuel ash is the only binder present, (ii) a fine aggregate, (iii) an alkali activator containing an aqueous solution of sodium hydroxide and sodium silicate, and (iv) aluminum hydroxide as a strength enhancer. A cured mortar made from the mortar composition is also disclosed with advantageous compressive strength properties.

A mortar composition, which includes (i) a treated palm oil fuel ash, wherein the treated palm oil fuel ash is the only binder present, (ii) a fine aggregate, (iii) an alkali activator containing an aqueous solution of sodium hydroxide and sodium silicate, and (iv) aluminum hydroxide as a strength enhancer. A cured mortar made from the mortar composition is also disclosed with advantageous compressive strength properties.

The invention comprises a concrete form. The form comprises a first concrete forming panel having a first primary surface adapted for forming and contacting plastic concrete and a second primary surface opposite the first primary surface; a layer of insulating material contacting and substantially covering the second primary surface of the first concrete forming panel; and an insulating blanket adjacent the first concrete forming panel. A method of using the concrete form is also disclosed.