IP Library › Granted Patent US 8,337,612
Granted Patent B2
US 8,337,612 · App. 13/208,363 · Granted Dec 25, 2012

Environment friendly composite construction materials

Assignee: King Abdulaziz City for Science and Technology
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Quick Facts
Patent No.
US 8,337,612
App. No.
13/208,363
Granted
Dec 25, 2012
Kind
B2
Abstract

Disclosed are a system, a method and/or composition of environment friendly composite construction material. In one aspect, a method includes providing a mixture of a pozzolanic material and/or a kaolin clay with an activator solution to form an alumino-silicate cementitious material through a resulting geo-polymerization process. The alumino-silicate cementitious material is in the form of a paste. The method also includes processing the alumino-silicate cementitious material to transform the alumino-silicate cementitious material that is in the form of the paste to a form of a powder of the alumino-silicate cementitious material. The method further includes mixing the alumino-silicate cementitious material which is in the form of the powder with water to control a workability of the alumino-silicate cementitious material. Furthermore the method includes combining a mixture of the alumino-silicate cementitious material and water with a coarse aggregate, a fine aggregate and/or a plasticizer to form a composite construction material.

Claims (56)

1. A method of forming a composite construction material comprising the steps of:

providing a mixture of at least one of a pozzolanic material and a kaolin clay with an activator solution to form an alumino-silicate cementitious material through a resulting geo-polymerization process, the alumino-silicate cementitious material is in the form of a paste;

processing the alumino-silicate cementitious material to transform the alumino-silicate cementitious material that is in the form of the paste to a form of a powder of the alumino-silicate cementitious material;

mixing the alumino-silicate cementitious material which is in the form of the powder with water to control a workability of the alumino-silicate cementitious material; and

combining a mixture of the alumino-silicate cementitious material and water with at least one of a coarse aggregate, a fine aggregate and a plasticizer to form a composite construction material, wherein the composite construction material is concrete, wherein the method of forming the composite construction material is free of carbon dioxide emission associated with the formation of the composite construction material;

wherein a weight of the mixture of the pozzolanic material and the kaolin clay that is used to form the alumino-silicate cementitious material ranges between 350 kilograms and 400 kilograms;

wherein the weight of a sodium hydroxide that is used to form the alumino-silicate cementitious material ranges between 30 kilograms and 60 kilograms;

wherein the weight of the sodium silicate that is used to form the alumino-silicate cementitious material ranges between 100 kilograms and 150 kilograms;

wherein the weight of the fine aggregate used to form the concrete ranges between 500 kilograms and 600 kilograms;

wherein the weight of the coarse aggregate used to form the concrete ranges between 1200 kilograms and 1400 kilograms; and

wherein the weight of the water used to form the concrete ranges between 60 kilograms and 400 kilograms.

2. The method of claim 1 , further comprising:

forming the activator solution through mixing a dry ingredient with an alkali hydroxide solution, wherein the dry ingredient is sodium silicate, wherein the ratio of sodium silicate to the alkali hydroxide solution in the activator solution is 0.5 to 3.5; and

adjusting a concentration of the alkali hydroxide solution through diluting the alkali hydroxide solution with water.

3. The method of claim 1 :

wherein the pozzolanic material is a fly ash, wherein the activator solution is an alkali hydroxide, and wherein the alkali hydroxide is the sodium hydroxide.

4. The method of claim 1 , wherein processing the alumino-silicate cementitious material to transform the alumino-silicate cementitious material that is in the form of the paste to a form of a powder of the alumino-silicate cementitious material, further comprising:

drying the alumino-silicate cementitious material that is in the form of a paste at a temperature ranging between 40° C. and 100° C. through a normal drying process; and

reducing the dried alumino-silicate cementitious material to the powder form through at least one of a grinding and pulverizing the dried alumino-silicate cementitious material when the alumino-silicate cementitious material is dried through a normal drying process at a temperature ranging between 40° C. and 100° C.

5. The method of claim 1 , wherein processing the alumino-silicate cementitious material to transform the alumino-silicate cementitious material that is in the form of the paste to a form of a powder of the alumino-silicate cementitious material, further comprising spray drying the alumino silicate cementitious material that is in the form of a paste to transform the alumino silicate cementitious material that is in the form of the paste to the form of the powder.

6. The method of claim 5 , wherein the spray drying further comprising:

spraying the alumino silicate cementitious material that is in the form of a paste through a nozzle into an environment that has at a temperature ranging between 40° C. and 100° C. to transform the alumino silicate cementitious material that is in the form of a paste to the form of powder,

wherein the environment that has at a temperature ranging between 40° C. and 100° C. to which the alumino silicate cementitious material is sprayed to dry the sprayed alumino silicate cementitious material.

7. The method of claim 1 , wherein the density of the composite construction material formed from the powdered alumino silicate cementitious material that is transformed to the form of powder through at least one of the spray drying and the normal drying the paste form of the alumino silicate cementitious material is based on the plasticizer that is added to the alumino silicate cementitious material to form the composite construction material.

8. The method of claim 1 , further comprising:

curing the composite construction material through at least one of a curing process at a room temperature and a heat curing at a temperature ranging between 40° C. and 120° C.; and

increasing a resistance of the composite construction material to an acidic environment through mixing the alkali hydroxide as activator with the pozzolanic material to form a crystalline alumino silicate cementitious material that is used to produce the composite construction material.

9. The method of claim 1 :

wherein the kaolin clay reinforces the strength of the composite construction material, and

wherein at least one of the fine aggregates and coarse aggregates increases the compressive strength of the concrete.

10. A method of forming a composite construction material comprising the steps of:

providing a mixture of at least one of a pozzolanic material and a kaolin clay with an activator solution to form an alumino-silicate cementitious material through a resulting geo-polymerization process, the alumino-silicate cementitious material is in the form of a paste;

processing the alumino-silicate cementitious material to transform the alumino-silicate cementitious material that is in the form of the paste to a form of a powder of the alumino-silicate cementitious material through at least one of a process of a spray drying and a normal drying;

mixing the alumino-silicate cementitious material which is in the form of the powder with water to control a workability of the alumino-silicate cementitious material; and

combining a mixture of the alumino-silicate cementitious material and water with at least one of a coarse aggregate, a fine aggregate and a plasticizer to form a composite construction material, wherein the composite construction material is concrete, wherein the method of forming the composite construction material is free of carbon dioxide emission associated with the formation of the composite construction material;

wherein the pozzolanic material is a fly ash,

wherein the activator solution is an alkali hydroxide,

wherein the alkali hydroxide is at least one of a sodium hydroxide and a potassium hydroxide,

wherein a weight of the mixture of the pozzolanic material and the kaolin clay that is used to form the alumino-silicate cementitious material ranges between 350 kilograms and 400 kilograms,

wherein the weight of the sodium hydroxide that is used to form the alumino-silicate cementitious material ranges between 30 kilograms and 60 kilograms,

wherein the weight of the sodium silicate that is used to form the alumino-silicate cementitious material ranges between 100 kilograms and 150 kilograms,

wherein the weight of the fine aggregate used to form the concrete ranges between 500 kilograms and 600 kilograms,

wherein the weight of the coarse aggregate used to form the concrete ranges between 1200 kilograms and 1400 kilograms, and

wherein the weight of the water used to form the concrete ranges between 60 kilograms and 400 kilograms.

11. The method of claim 10 , further comprising:

forming the activator solution through mixing a dry ingredient with an alkali hydroxide solution, wherein the dry ingredient is sodium silicate, wherein the ratio of sodium silicate to the alkali hydroxide solution in the activator solution is 0.5 to 3.5; and

adjusting a concentration of the alkali hydroxide solution through diluting the alkali hydroxide solution with water;

spraying the alumino silicate cementitious material that is in the form of a paste through a nozzle into an environment that has at a temperature ranging between 40° C. and 100° C. to dry the alumino silicate cementitious material in the form of the paste and to transform the alumino silicate cementitious material in the form of the paste to the form of powder, wherein the environment that has at a temperature ranging between 40° C. and 100° C. to which the alumino silicate cementitious material is sprayed to dry the sprayed alumino silicate cementitious material;

drying the alumino-silicate cementitious material that is in the form of a paste at a temperature ranging between 40° C. and 100° C. through a normal drying process;

reducing the dried alumino-silicate cementitious material to the form of a powder of the alumino-silicate cementitious material through at least one of a grinding and pulverizing the dried alumino-silicate cementitious material when the aluminosilicate cementitious material is dried through a normal drying process at a temperature ranging between 40° C. and 100° C.;

curing the composite construction material through at least one of a curing process at a room temperature and a heat curing at a temperature ranging between 40° C. and 120° C.; and

increasing a resistance of the composite construction material to an acidic environment through mixing the alkali hydroxide as activator with the pozzolanic material to form a crystalline alumino silicate cementitious material that is used to produce the composite construction material.

12. The method of claim 10 , further comprising:

wherein the density of the composite construction material is based on the plasticizer that is added to the alumino silicate cementitious material to form the composite construction material,

wherein the kaolin clay reinforces the strength of the composite construction material, and

wherein at least one of the fine aggregates and coarse aggregates to increases the compressive strength of the concrete.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 12, 2011
From: ABDULLAH, MOHD MUSTAFA AL BAKRI; BINHUSSAIN, MOHAMMED A; HUSSIN, KAMARUDIN; GHAZALI, MOHD RUZAIDI; NOOR, NORAZIAN MOHAMED; SELIMIN, MOHAMMAD TAMIZI
To: KING ABDULAZIZ CITY SCIENCE AND TECHNOLOGY
Reel/Frame 026739/0238 →
Priority Claims (1)
MY PI 2010006250 · Dec 28, 2010 · national
Continuity (1)
Related Publication 20110290153A1 · Dec 1, 2011