TH14932U - The process of producing self-compacting ready-mixed concrete by mixing rice husk ash and fly ash. - Google Patents

Abstract

------29/01/2561------(OCR) Page 1 of 1. Summary of the Invention: The invention aims to produce self-compacting ready-mixed concrete using a specific process with a specialized mixer. It begins by preparing a clean concrete mixer. Large aggregate (19.0 and 6.0 mm) and cement are weighed and placed into the mixer. The mixer is then started to mix the aggregate, sand, and cement thoroughly. Once the mixture is well combined, 2/3 of the total volume of water is added. After the water is thoroughly mixed with the sand, aggregate, and cement, concrete admixtures and stabilizers are added to the remaining water while the mixer is turned on to allow the added admixtures to fully mix. The mixture is mixed well with the concrete mixture for 30 seconds, and a concrete stabilizer is added. The concrete is then mixed further until the required time is complete, resulting in self-compacting ready-mixed concrete. ------------ Edited 2/6/60 The process of producing self-compacting ready-mixed concrete using a mixture of rice husk ash and fly ash aims to utilize cement, fly ash, and rice husk ash to produce self-compacting concrete using a specific process and a specialized mixer. It begins with preparing a clean concrete mixer. The largest aggregate sizes (19.0 and 6.0 mm) and cement are weighed and placed into the mixer. The mixer is then started to mix the aggregate, sand, and cement thoroughly. Once the mixture is well combined, 2/3 of the total volume of water is added. After the added water is thoroughly mixed with the sand, aggregate, and cement, concrete admixtures and stabilizers are added to the remaining water while the mixer is turned on to allow the added admixtures to mix thoroughly. The mixture is mixed well with the concrete mixture for 30 seconds, and a concrete stabilizer is added. The concrete is then mixed further until the time is complete, resulting in self-compacting ready-mixed concrete. ....................................................................................................................................................... The process for producing self-compacting ready-mixed concrete using rice husk ash and fly ash aims to utilize cement, fly ash, and rice husk ash to produce self-compacting concrete using a specific process and a specialized mixer. It begins with preparing a clean concrete mixer. The largest aggregate sizes (19.0 and 6.0 mm) and cement are weighed and placed into the mixer. The mixer is then started to mix the aggregate, sand, and cement thoroughly. Once the mixture is well combined, 2/3 of the total volume of water is added. After the added water is thoroughly mixed with the sand, aggregate, and cement, concrete admixtures and stabilizers are added to the remaining water while the mixer is started to allow the added admixtures to mix thoroughly. The mixture is mixed well with the concrete for 30 seconds, then a stabilizer is added, and the concrete is mixed again until the time is up to obtain self-compacting ready-mixed concrete.

Claims (5)

------January 29, 2018------(OCR) Page 1 of 2 pages. Claims 1. The process for producing self-compacting ready-mixed concrete with rice husk ash and fly ash involves the following steps: a. Prepare a concrete mixer with a clean interior and a moist (not completely dry) interior surface, and aggregates (stone and sand) that are saturated with water and have a saturated surface dry condition. b. Weigh the largest stone (19.0 mm) at a quantity of 223 kg/m³ of concrete, the largest stone (6.0 mm) at a quantity of 616 kg/m³ of concrete, cement at a quantity of 375 kg/m³ of concrete, fly ash at a quantity of 90 kg/m³, and rice husk ash at a quantity of 50 kg/m³ of concrete, and pour them into the concrete mixer. Then, start the machine at a speed of 18 revolutions per minute to mix the stone, sand, and cement. A. Mix thoroughly in a mixer for 1 minute. C. Once the cement, sand, and aggregate are well mixed, add water in an amount equal to 2/3 of the total water used for mixing, or 76 kilograms per cubic meter of concrete. While adding the water, operate the concrete mixer for 30 seconds to ensure the added water is well mixed with the sand and cement mixture. D. Once the added water is well mixed with the sand, aggregate, and cement, begin adding the concrete admixture at a rate of 6.05 liters per cubic meter of concrete, mixing it with the remaining water in the concrete mix (38 kilograms per cubic meter of concrete). Continue to operate the concrete mixer to ensure the added admixture is well mixed with the aggregate. 1. The concrete mixture is kneaded for 1 minute, and 1.65 liters of concrete stabilizer are added. The concrete is then kneaded again for 30 seconds, resulting in ready-mixed concrete. 2. The process for producing self-compacting ready-mixed concrete using rice husk ash and fly ash, as per Patent 1, involves mixing Type 1 Portland cement with a chemical composition by weight consisting of: 4.35% aluminum oxide (Al2O3), 20.10% silicon dioxide (SiO2), 0.63% potassium oxide (K2O), 62.32% calcium oxide (CaO), 0.23% titanium dioxide (SiO2), and 3.24% iron oxide (Fe2O3). The percentage loss due to combustion is 1.71%, while the physical properties include an average particle size of 623.8 micrometers and a specific surface area of 472 square meters per kilogram. 3. The specific gravity is 3.10 and the permeability is 0.12%. 3. The process for producing self-compacting ready-mixed concrete using rice husk ash and fly ash as per claim 1, where the fly ash has a chemical composition by weight consisting of 22.42% aluminum oxide (Al2O3), 40.93% silicon dioxide (SiO2), 2.39% potassium oxide (K2O), 13.63% calcium oxide (CaO), and has a weight loss due to combustion of 0.46%, while having physical properties consisting of... The specific surface area is 3,550 m²/kg, the specific gravity is 2.47, and the permeability is 0.07%. 4. The process for producing self-compacting ready-mixed concrete using rice husk ash and fly ash as per claim 1, where the rice husk ash has a chemical composition by weight consisting of 0.35% aluminum oxide (Al2O3), 93.10% silicon dioxide (SiO2), 1.63% potassium oxide (K2O), 1.32% calcium oxide (CaO), 0.03% titanium dioxide (TiO2), and 0.24% iron oxide (Fe2O3), with a weight loss due to combustion of 1.91%, while having physical properties consisting of... The average size is 269.6 micrometers, the specific surface area is 472 square centimeters per gram, the specific gravity is 2.21, and the volume of moisture is 3.12. (Page 2 of 2 pages) 5. Self-compacting ready-mixed concrete mixed with rice husk ash and fly ash according to one of the claims 1-4, consisting of: cement content = 375 kg/m³ concrete; fly ash content = 90 kg/m³ concrete; rice husk ash content = 50 kg/m³ concrete; concrete mix water content = 114 kg/m³ concrete; sand content = 974 kg/m³ concrete; maximum aggregate size 19.0 mm = 223 kg/m³ concrete; maximum aggregate size 6.0 mm = 616 kg/m³ concrete; and strong concrete admixture content = 6.05 liters/m³ concrete. The amount of stabilizer for concrete is 1.65 liters per cubic meter of concrete. ------------ Revised June 2, 2017 1. The process for producing self-compacting ready-mixed concrete with rice husk ash and fly ash is as follows: a. Prepare a concrete mixer with a clean interior and a moist (not completely dry) inner surface, and aggregates (stone and sand) that are saturated with water and have a saturated surface dry condition. b. Weigh the largest stone (19.0 mm) at a quantity of 223 kilograms per cubic meter of concrete, the largest stone (6.0 mm) at a quantity of 616 kilograms per cubic meter of concrete, cement at a quantity of 375 kilograms per cubic meter of concrete, fly ash at a quantity of 90 kilograms per cubic meter, rice husk ash at a quantity of 50 kilograms per cubic meter of concrete, and concrete into the concrete mixer. Then, start the machine at a speed of 18 revolutions per minute to mix the stone, sand, and cement. A. Mix thoroughly in a mixer for 1 minute. C. Once the cement, sand, and aggregate are well mixed, add water in an amount equal to 2/3 of the total water used for mixing, or 76 kilograms per cubic meter of concrete. While adding the water, operate the concrete mixer for 30 seconds to ensure the water is well mixed with the sand and cement mixture. D. Once the added water is well mixed with the sand, aggregate, and cement, begin adding the concrete admixture at a rate of 6.05 liters per cubic meter of concrete. Mix this with the remaining water in the concrete mix (38 kilograms per cubic meter of concrete) while operating the concrete mixer to ensure the admixture is well mixed. 1. The concrete mixture is stirred for 1 minute, and 1.65 liters of concrete stabilizer are added. The concrete is then stirred again for 30 seconds, resulting in ready-mixed concrete. 2. The process for producing self-compacting ready-mixed concrete using rice husk ash and fly ash, as per Patent 1, involves the following chemical composition by weight: Type 1 Portland cement with a weight of 4.35% aluminum oxide (Al2O3), 20.10% silicon dioxide (SiO2), 0.63% potassium oxide (K2O), 62.32% calcium oxide (CaO), 0.23% titanium dioxide (TiO2), and 3.24% iron oxide (Fe2O3), with a weight loss on combustion of 1.71%. Its physical properties include a mean size of 623.8 micrometers and a specific surface area of 472 square meters per kilogram. 3. The specific gravity is 3.10 and the moisture content is 0.12%. 3. The process for producing self-compacting ready-mixed concrete using rice husk ash and fly ash as per claim 1, where the fly ash has a chemical composition by weight consisting of 22.42% aluminum oxide (Al2O3), 40.93% silicon dioxide (SiO2), 2.39% potassium oxide (K2O), 13.63% calcium oxide (CaO), and has a weight loss due to combustion of 0.46%, while possessing physical properties including: The specific surface area is 3,550 m²/kg, the specific gravity is 2.47, and the moisture content is 0.07%. 4. The process for producing self-compacting ready-mixed concrete using rice husk ash and fly ash as per claim 1, where the rice husk ash has a chemical composition by weight consisting of 0.35% aluminum oxide (Al2O3), 93.10% silicon dioxide (SiO2), 1.63% potassium oxide (K2O), 1.32% calcium oxide (CaO), 0.03% titanium dioxide (TiO2), and 0.24% iron oxide (Fe2O3), with a weight loss due to combustion of 1.91%, while having physical properties consisting of... The average size is 269.6 micrometers, the specific surface area is 472 square centimeters per gram, the specific gravity is 2.21, and the moisture content is 3.12. 5. Self-compacting ready-mixed concrete mixed with rice husk ash and fly ash according to claims 1-4, clause one, consisting of: cement content = 375 kg/m³ concrete; fly ash content = 90 kg/m³ concrete; rice husk ash content = 50 kg/m³ concrete; water content = 114 kg/m³ concrete; sand content = 974 kg/m³ concrete; maximum aggregate size 19.0 mm = 223 kg/m³ concrete; maximum aggregate size 6.0 mm = 616 kg/m³ concrete; strong concrete admixture content = 6.05 liters/m³ concrete; concrete stabilizer content = 1.65 liters/m³ concrete. 1. The process for producing self-compacting ready-mixed concrete using rice husk ash and fly ash involves the following steps: a. Prepare a concrete mixer with a clean interior and a moist (not completely dry) inner surface, and aggregate (stone and sand) that is saturated and has a dry surface. b. Weigh the largest aggregate (19.0 mm) at 223 kg/m³/3, the largest aggregate (6.0 mm) at 616 kg/m³/3, cement at 375 kg/m³/3, fly ash at 90 kg/m³/3, and rice husk ash at 50 kg/m³/3, and the concrete into the concrete mixer. Then, start the mixer at 18 revolutions per minute to mix the stone, sand, and cement thoroughly for 1 minute. c. Once the cement, sand, and stone are well mixed... First, add water in an amount equal to 2/3 of the total water used for mixing, or 76 kilograms per cubic meter of concrete. While adding the water, operate the concrete mixer for 30 minutes to ensure the added water is thoroughly mixed with the sand and cement mixture. Next, add the concrete admixture at a rate of 6.05 liters per cubic meter of concrete, mixing it with the remaining water (38 kilograms per cubic meter). Continue mixing for 1 minute while the concrete mixer is running to ensure the admixture is thoroughly mixed with the concrete mixture. Finally, add 1.65 liters of concrete stabilizer. Mix the concrete for another 30 seconds to complete the ready-mixed concrete process. 2. The process for producing self-compacting ready-mixed concrete with rice husk ash and fly ash as per claim 1, where Portland cement type 1 has a chemical composition by weight consisting of 4.35% alumina trioxide (Al2O3), 20.10% silicon dioxide (SiO2), 0.63% potassium oxide (K2O), 62.32% calcium oxide (CaO), 0.23% titanium dioxide (TiO2), and 3.24% iron oxide (Fe2O3), with a weight loss on combustion of 1.71%, while having physical properties including a mean particle size of 623.8 micrometers, a specific surface area of 472 m²/kg, a specific gravity of 3.10, and a moisture content of 0.12%. 3. The process for producing self-compacting ready-mixed concrete using rice husk ash and fly ash as per claim 1, where the fly ash has a chemical composition by weight of 22.42% alumina trioxide (Al2O3), 40.93% silicon dioxide (SiO2), 2.39% potassium oxide (K2O), and 13.63% calcium oxide (CaO), with a weight loss on combustion of 0.46%, while having physical properties including a specific surface area of 3,550 m²/kg, a specific gravity of 23.47, and a moisture content of 0.07%. 4. The process for producing self-compacting ready-mixed concrete using rice husk ash and fly ash as per claim 1, where the rice husk ash has a chemical composition by weight of 0.35% alumina trioxide (Al2O3), 93.10% silicon dioxide (SiO2), 1.63% potassium oxide (K2O), 1.32% calcium oxide (CaO), 0.03% titanium dioxide (TiO2), and 0.24% iron oxide (Fe2O3), with a weight loss on combustion of 1.91%, while having physical properties including an average particle size of 269.6 micrometers, a specific surface area of 472 square meters per gram, a specific gravity of 2.21, and a moisture content of 3.12%. 5. The manufacturing process of cellular lightweight concrete as per claims 1, 2, 3, and 4, where the following mix ratios are used: Cement content = 375 kg/m³ concrete; Fly ash content = 90 kg/m³ concrete; Rice husk ash content = 50 kg/m³ concrete; Water content = 114 kg/m³ concrete; Sand content = 974 kg/m³ concrete; Maximum aggregate (19.0 mm) content = 223 kg/m³ concrete; Maximum aggregate (6.0 mm) content = 616 kg/m³ concrete; Strong admixture content = 6.05 liters/m³ concrete; Concrete stabilizer content = 1.65 liters/m³ concrete.