An efficient sound-absorbing lightweight aggregate cellular concrete, a method for preparing the same, and an application thereof. The concrete comprises: 85-95 parts by weight of low-carbon sulfur-aluminum-ferric cementitious materials, 5-15 parts by weight of supplementary cementitious material, 0.6-1.5 parts by weight of functional admixture, 20-60 parts by weight of non-sintered lightweight aggregate, 0.35-0.45 parts by weight of water, and 0.5-1.5 L of preformed foam. The non-sintered lightweight aggregate includes cementitious materials, byproduct gypsum, hydrogen peroxide, water, and expanded perlite. A multi-level pore structure is constructed from expanded perlite pores, hydrogen peroxide foaming pores, and physical foaming pores. The material exhibits a noise reduction coefficient 0.80, a bulk density500 kg/m.sup.3, and a flexural strength 1.5 MPa.

An efficient sound-absorbing lightweight aggregate cellular concrete, a method for preparing the same, and an application thereof. The concrete comprises: 85-95 parts by weight of low-carbon sulfur-aluminum-ferric cementitious materials, 5-15 parts by weight of supplementary cementitious material, 0.6-1.5 parts by weight of functional admixture, 20-60 parts by weight of non-sintered lightweight aggregate, 0.35-0.45 parts by weight of water, and 0.5-1.5 L of preformed foam. The non-sintered lightweight aggregate includes cementitious materials, byproduct gypsum, hydrogen peroxide, water, and expanded perlite. A multi-level pore structure is constructed from expanded perlite pores, hydrogen peroxide foaming pores, and physical foaming pores. The material exhibits a noise reduction coefficient 0.80, a bulk density500 kg/m.sup.3, and a flexural strength 1.5 MPa.

This application relates to making magnesium oxychloride boards. A magnesium oxychloride slurry is mixed by directing magnesium chloride, magnesium oxide, at least one phosphate, at least one inorganic salt, and water into a mixer and mixing these ingredients together to form a slurry. At least one filler is then mixed with the slurry. The slurry is directed to a mold. The mold is formed with the slurry to form a magnesium oxychloride board. The magnesium oxychloride board is then cured.

This application relates to making magnesium oxychloride boards. A magnesium oxychloride slurry is mixed by directing magnesium chloride, magnesium oxide, at least one phosphate, at least one inorganic salt, and water into a mixer and mixing these ingredients together to form a slurry. At least one filler is then mixed with the slurry. The slurry is directed to a mold. The mold is formed with the slurry to form a magnesium oxychloride board. The magnesium oxychloride board is then cured.

This application relates to making magnesium oxychloride boards. A magnesium oxychloride slurry is mixed by directing magnesium chloride, magnesium oxide, at least one phosphate, at least one inorganic salt, and water into a mixer and mixing these ingredients together to form a slurry. At least one filler is then mixed with the slurry. The slurry is directed to a mold. The mold is formed with the slurry to form a magnesium oxychloride board. The magnesium oxychloride board is then cured.

A method of producing sulfur concrete using precipitated salts. The method comprises obtaining precipitated salts from a salt solution, which comprises: mixing the salt solution with calcium oxide to form a basic suspension; treating the basic suspension using carbon dioxide to cause salts to precipitate from the salt solution; and separating the precipitated salts out from the treated basic suspension to produce a treated salt solution. The method also comprises forming the sulfur concrete, which comprises mixing elemental sulfur with a modifying agent to form a sulfur-containing polymer; pre-heating aggregates comprising at least the precipitated salts; and mixing the aggregates with the sulfur-containing polymer to form the sulfur concrete.

A method of producing sulfur concrete using precipitated salts. The method comprises obtaining precipitated salts from a salt solution, which comprises: mixing the salt solution with calcium oxide to form a basic suspension; treating the basic suspension using carbon dioxide to cause salts to precipitate from the salt solution; and separating the precipitated salts out from the treated basic suspension to produce a treated salt solution. The method also comprises forming the sulfur concrete, which comprises mixing elemental sulfur with a modifying agent to form a sulfur-containing polymer; pre-heating aggregates comprising at least the precipitated salts; and mixing the aggregates with the sulfur-containing polymer to form the sulfur concrete.

A method of producing sulfur concrete using precipitated salts. The method comprises obtaining precipitated salts from a salt solution, which comprises: mixing the salt solution with calcium oxide to form a basic suspension; treating the basic suspension using carbon dioxide to cause salts to precipitate from the salt solution; and separating the precipitated salts out from the treated basic suspension to produce a treated salt solution. The method also comprises forming the sulfur concrete, which comprises mixing elemental sulfur with a modifying agent to form a sulfur-containing polymer; pre-heating aggregates comprising at least the precipitated salts; and mixing the aggregates with the sulfur-containing polymer to form the sulfur concrete.

A method of producing sulfur concrete using precipitated salts. The method comprises obtaining precipitated salts from a salt solution, which comprises: mixing the salt solution with calcium oxide to form a basic suspension; treating the basic suspension using carbon dioxide to cause salts to precipitate from the salt solution; and separating the precipitated salts out from the treated basic suspension to produce a treated salt solution. The method also comprises forming the sulfur concrete, which comprises mixing elemental sulfur with a modifying agent to form a sulfur-containing polymer; pre-heating aggregates comprising at least the precipitated salts; and mixing the aggregates with the sulfur-containing polymer to form the sulfur concrete.