A construction product described herein includes a fiber core that includes a plurality of entangled glass fibers. The fiber core also includes a binder that bonds the plurality of entangled glass fibers together and an Aerogel material that is homogenously or uniformly disposed within the fiber core. In some instances, the fiber core includes between 40 and 80 weight percent of the Aerogel material. The construction product has an R-value of at least 6.5 per inch, a flame spread index of no greater than 5, and a smoke development index of no greater than 20 as measured according to the ASTM E-84 tunnel test.

Provided are an energy-saving and environment-friendly non-autoclaved pipe pile concrete material with high impact resistance, and a preparation method thereof. Raw materials of the concrete include cementing material, sand and gravels, modified rubber fiber, water reducer and water. The rubber fiber comes from waste tires. The cementing material includes cement, slag powder and silicon powder. A content of the cementing material in the concrete is 400-500 kg/m.sup.3. A water-cement ratio is 0.19-0.22. A specific surface area of the slag powder is 400-450 m.sup.2/kg. A content ratio of the slag power to the whole cementing material by mass is 25-40%. A specific surface area of the silicon powder is 15-30 m.sup.2/kg. A content ratio of the silicon power to the whole cementing material by mass is 5-10%. The modified rubber fiber is obtained by making the rubber fiber undergo shallow carbonization and soaking the obtained rubber fiber with a modifier.

There is provided a method of manufacturing a concrete product. A composition including a slag-based binder, an aggregate, water and an additive selected from the group consisting of calcium chloride, ground eggshells, sodium carbonate, sodium bicarbonate, sodium hydroxide, fine calcium carbonate, calcium oxide, borax, ammonium chloride and combinations thereof, is mixed to obtain a concrete mixture. The concrete mixture is formed into a desired shape to obtain a formed concrete, the formed concrete having a first water-to-binder ratio. The formed concrete is dried to obtain a dried concrete having a second water-to-binder ratio less than the first water-to-binder ratio. The concrete mixture is carbon cured to obtain the concrete product.

There is provided a method of manufacturing a concrete product. A composition including a slag-based binder, an aggregate, water and an additive selected from the group consisting of calcium chloride, ground eggshells, sodium carbonate, sodium bicarbonate, sodium hydroxide, fine calcium carbonate, calcium oxide, borax, ammonium chloride and combinations thereof, is mixed to obtain a concrete mixture. The concrete mixture is formed into a desired shape to obtain a formed concrete, the formed concrete having a first water-to-binder ratio. The formed concrete is dried to obtain a dried concrete having a second water-to-binder ratio less than the first water-to-binder ratio. The concrete mixture is carbon cured to obtain the concrete product.

The present invention provides a dispersant composition for hydraulic compositions for centrifugal molding, which contains (A) a dispersant for hydraulic powders composed of an aromatic ring-containing high-molecular compound; and (B) one or more compounds selected from specific compounds represented by the general formulas (B1) to (B4).

A pipe includes a tubular body made entirely of a desert sand engineered cementitious composite (DSECC) made with a cement binder, unprocessed desert sand, and polymer fibers selected from polyethylene fibers, polypropylene fibers, and a combination thereof. The tubular body has a wall with a thickness that is less than 22 percent of an inner diameter of the pipe. The pipe is fully non-metallic.

Disclosed is a method of fabricating a construction element. The method may include assembling a mold on a rotational casting machine; rotating the mold around at least two axes at a predetermined speed; providing a first portion of magnesium silico-phosphate cement (MSPC) mix, having an altered hardening rate, to the mold while rotating the mold until at least a portion of the mold's walls is covered by a first layer of the MSPC mix; and rotating the mold until the MSPC mix is hardened to a predetermined degree.

There is provided a method of manufacturing a concrete product. A composition including a slag-based binder, an aggregate, water and an additive selected from the group consisting of calcium chloride, ground eggshells, sodium carbonate, sodium bicarbonate, sodium hydroxide, fine calcium carbonate, calcium oxide, borax, ammonium chloride and combinations thereof, is mixed to obtain a concrete mixture. The concrete mixture is formed into a desired shape to obtain a formed concrete, the formed concrete having a first water-to-binder ratio. The formed concrete is dried to obtain a dried concrete having a second water-to-binder ratio less than the first water-to-binder ratio. The concrete mixture is carbon cured to obtain the concrete product.

A mineral wool or other fibrous product which comprises in at least a surface layer thereof an anticorrosive composition comprising one or more alkali metal silicate components of the formula Me.sub.2O.Math.xSiO.sub.2, wherein x has a value of from 0.5 to 4.0, one or more alkali metal phosphate components of the formula Me.sub.2O:nP.sub.2O.sub.5, wherein n has a value of from 0.33 to 1 and/or hydrates thereof, and one or more carboxylic acids having 6-22 carbon atoms and/or salts thereof.

An anticorrosive composition comprising (a) one or more alkali metal silicate components of the formula Me.sub.2O.Math.xSiO.sub.2, wherein x has a value of from 0.5 to 4.0, (b) one or more alkali metal phosphate components of the formula Me.sub.2O:nP.sub.2O.sub.5, wherein n has a value of from 0.33 to 1 and/or hydrates thereof, (c) one or more carboxylic acids having 6-22 carbon atoms and/or salts thereof: and the use of the composition for imparting anticorrosive properties to a material such as a mineral wool product.