A geopolymer composite ultra high performance concrete (GUHPC), and methods of making the same, are provided herein, the GUHPC comprising: (a) a binder comprising one or more selected from the group consisting of reactive aluminosilicate and reactive alkali-earth aluminosilicate; (b) an alkali activator comprising an aqueous solution of metal hydroxide and metal silicate; and (c) one or more aggregate.

Geopolymer composite for ultra high performance concrete

A product formed from a first material including a geopolymer resin material, a geopolymer resin, or a combination thereof by contacting the first material with a fluid and removing at least some of the fluid to yield a product. The first material may be formed by heating and/or aging an initial geopolymer resin material to yield the first material before contacting the first material with the fluid. In some cases, contacting the first material with the fluid breaks up or disintegrates the first material (e.g., in response to contact with the fluid and in the absence of external mechanical stress), thereby forming particles having an external dimension in a range between 1 nm and 2 cm.

Geopolymer resin materials, geopolymer materials, and materials produced thereby

The invention relates to geopolymeric concrete based on recycled aggregate, and a preparation method of the geopolymeric concrete. The concrete is prepared by taking construction waste as aggregate and inorganic geopolymer as an adhesive through an alkali activation process. The recycled aggregate geopolymeric concrete prepared by using the method has the characteristics that the concrete can be rapidly dried, the compressive strength, particularly the early-stage compressive strength is high, the volume shrinkage in the coagulation process is extremely low, the coefficient of volume expansion is approximate to 0, and acid-base corrosion resistance is good. Due to the adoption of the method, the defects that the conventional concrete is low in early-stage strength and the coagulation time is long are overcome; a method for rapidly repairing concrete pavement is provided, and problems of recycling and reusing construction waste aggregate and environment problems caused by the construction waste aggregate are solved.

Geopolymeric concrete based on recycled aggregate and preparation method of geopolymeric concrete

The invention discloses a geopolymer grouting material and a preparation method thereof An inorganic silicate composite material is prepared from 71-91 parts of mineral waste residues, 66-70 parts of coal ashes, 16-28 parts of alkali-activator and 05-16 parts of retarder; and then, the inorganic silicate composite material is mixed with water according to a proportion of 030-038 to prepare the geopolymer grouting material The geopolymer grouting material disclosed by the invention has characteristics of being good in liquidity, high in early strength, free of shrinkage, good in durability, adjustable in setting time and strength Compared with the conventional geopolymer polymer material, the material is a composite material formed by mixing various powder materials, and can be applied by adding water and stirring on the spot; the geopolymer grouting material is simple in preparation process, low in cost, convenient to operate, capable of being widely applied to cement concrete pavement slab bottom grouting, cement concrete pavement crack repairing, foundation bolt anchoring, equipment installing, pres-stressed bridge crack pouring, engineering repairing, reinforcing, and the like

Geopolymer grouting material and preparation method thereof

The invention discloses a geopolymeric light porous material and a preparation method thereof. By using metakaolin, alumina and water glass as raw materials and using aluminum powder as a foaming agent, the porous material which uses a geopolymeric material as a framework and has good performance is prepared at a low temperature (between 40 and 100 DEG C). Through testing the performance of the porous materials, a result shows that the compressive strength of the porous material is between 1.67 and 10.86 Mpa, the apparent porosity of the porous material is between 35 percent to 80 percent, the volume density of the porous material is between 0.30g/cm3 and 1.24g/cm3, and the porous material can be resistant to a high temperature of 800 DEG C; through controlling the proportioning, the viscosity and reaction conditions of slurry, porous materials with different performance and different pore structures can be obtained. The preparation method has the advantages of simple process and low cost; and the light porous material is hopeful of being applied to the fields of thermal insulation materials, sound absorption materials, waste gas adsorbing materials, inorganic membrane materials, energy absorption materials, and the like.

Geopolymeric light porous material and preparation method thereof

The present invention discloses a porous material of phosphate-based geopolymer and a preparation method thereof. The preparation method comprises the following steps of: adopting metakaolin, alumina (or aluminium hydroxide), phosphoric acid and water as raw materials, adopting aluminium powder as a foaming agent and under a lower temperature ( 50-90 DEG C) preparing the porous material which adopts geopolymer material as a skeleton and has good properties. By testing the properties of the porous material, the result shows that the porous material has compression strength of 2.0 to 15.0MPa, apparent porosity of 30 percent to 70 percent, volume density of 0.40cm to 1.0g/cm and high-temperature resistance of more than 1300 DEG C; and the porous material with different properties and porous structures can be obtained by controlling molar ratio of Al/Si and P/Al and reaction conditions. The porous material of phosphate-based geopolymer and a preparation method thereof provided by the present invention has simple technique and low cost and is expected to be applied in the fields of insulating materials, waste gas absorbing materials, sewage filtering materials, energy absorbing materials, insulating and encapsulating materials, military, aerospace and the like.

Porous material of phosphate-based geopolymer and preparation method thereof

The invention mainly discloses a method for preparing a NaA molecular sieve from a geopolymer. The method comprises the following steps: with metakaolin or chemically-synthesized aluminum silicate active powder as a solid raw material and sodium potassium silicate or sodium hydroxide solution as an exciting agent, adjusting the ratio of silicon to aluminum in a system by using boehmite; mixing the solid raw material with the alkali exciting agent according to the ratio of silicon to aluminum and the ratio of sodium to aluminum in the raw materials in the composition design of the NaA molecular sieve; stirring the solid raw material and the alkali exciting agent and injecting the mixture into a die; carrying out sealed curing the mixture in a thermostat at the temperature of 60-80 DEG C for 6-24 hours; feeding the cured geopolymer sample into a hydrothermal reactor; and carrying out hydrothermal crystallization on the cured geopolymer sample at the crystallization temperature of 70-110 DEG C for 4-10 hours to obtain the NaA molecular sieve. According to the method disclosed by the invention, due to the utilization of the characteristic that the geopolymer is easily formed, a NaA molecular sieve blocky material can be prepared in situ at one time. Compared with the preparation method for the NaA molecular sieve, the prepared method disclosed by the invention has the advantages of simplicity in operation, low cost and suitability for scale preparation.

Method for preparing NaA molecular sieve from geopolymer

Geopolymer/emulsified asphalt composite material and preparation method thereof

The invention discloses an organic and inorganic composite insulation material which is a composite material prepared from an organic material as aggregate and an inorganic material as a bonder by stirring in a mixed way, moulding and forming at normal temperature or extruding and forming at high temperature The proportion of the organic material to the inorganic material in parts by weight is (5-25): (75-95) The organic material is polystyrene foam or polyvinyl chloride foam or polyurethane foam The inorganic material is aluminium silicate geological polymer material The organic and inorganic composite insulation material prepared by the invention not only has good thermal insulation performance but also is advantageous for bonding to the inorganic material, such as a wall body and the like and is simple for construction and low in cost; and compared with the traditional organic insulation material, the organic and inorganic composite insulation material has the advantages of high strength, difficult combustion, low water absorption, low deformation, air permeability, light weight and the like

Organic and inorganic composite insulation material

The invention discloses a geopolymer dry powder material as well as a preparation method thereof. The geopolymer dry powder material comprises the main components of blast furnace slag, coal ashes and solid sodium silicate powder. The preparation method of the geopolymer dry powder material comprises the following steps of: uniformly mixing 0-40 parts (in parts by weight) of coal ashes and 60-100 parts of levigated blast furnace slag; uniformly mixing the mixture with solid sodium silicate powder in a mass ratio of 10:(1-3), and then, bagging and sealing to obtain finished products. When the material is used, an appropriate amount of water is added, a water-solid ratio is controlled to 0.20-0.25, and the material can be used after being uniformly stirred. The geopolymer dry powder material has the advantages that firstly, the geopolymer dry powder material is simple in preparation process, low in cost, low in energy consumption, green and pollution-free; secondly, industrial waste slag is used as the main material, widely distributed all over the world, cheap and easily available; and thirdly, the material disclosed by the invention can be applied to constructional engineering, road engineering, harbor engineering and military engineering.

Geopolymer dry powder material as well as preparation method thereof

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