TH12663C3 - Production process of ready-mixed concrete in cold storage - Google Patents

Abstract

Revised 5/10/59. The process of producing ready-mixed concrete for cold storage begins with preparing the concrete mixer. Weigh in the largest aggregate sizes (19.0 and 6.0 mm) and place them in the mixer. Then, start the mixer at 18 revolutions per minute to mix the aggregate, sand, and cement thoroughly for 1 minute. Next, weigh in and add fly ash while continuously mixing for 30 seconds. Once well mixed, add water, filling 3/4 of the total volume. During the water addition process, continue mixing for 30 seconds to ensure the water is thoroughly incorporated into the sand, aggregate, and cement. Then, add the strong concrete admixture to the remaining water while continuing to mix the admixture for 15 seconds. Finally, add the cold storage-specific admixture and mix the concrete for another 30 seconds. This completes the ready-mixed concrete for cold storage. The process of producing ready-mixed concrete for cold storage begins with preparing the concrete mixer. Weigh the largest aggregate sizes (19.0 and 6.0 mm) and place them in the mixer. Then, start the mixer at 18 revolutions per minute to thoroughly mix the aggregate, sand, and cement for 1 minute. Next, weigh and add fly ash, and continue mixing for 30 seconds. Once well mixed, add water, filling 3/4 of the total volume. During the water addition process, continue mixing for 30 seconds to ensure the water is thoroughly incorporated into the sand, aggregate, and cement. Next, add the strong concrete admixture to the remaining water, continuing to mix the admixture for 15 seconds. Finally, add the cold storage-specific admixture and continue mixing for another 30 seconds. This completes the ready-mixed concrete suitable for cold storage.

Claims (2)

Disclaimer (all) which will not appear on the advertisement page: Edit 5/10/16 1. Production process for cold storage ready-mixed concrete has the following steps: a. Prepare the concrete mixer with clean interior. And that the internal surface is wet (Not completely dry) and aggregates (rock and sand) with moisture in the state of saturated water and dry surface (saturated surface dry). B. Weighing rock size 19.0 mm, the volume equal to 820 kg per cubic meter. And the maximum size of stone is 6.0 mm, the volume is 281 kg per cubic meter. And 309 kilograms of cement per cubic meter into the concrete mixer. Then turn on the machine at a speed of 18 rpm to mix the rock and sand and cement homogeneously in the mixer for 1 minute, then weigh and add. Fly ash volume equal to 54 kg cubic meter. With the mixer continuously turned on for 30 seconds c. When the cement, fly ash, sand and stone are mixed together, Then add three-fourths of the total mixed water or 80 kilograms per cubic meter. However, while adding water, turn on the mixer. Concrete to allow the added water to mix well for 30 seconds d. When the added water is mixed well with sand, stone and cement Therefore began to add a strong concrete admixture with 1.54 liters per cubic meter of concrete It was mixed with the rest of the concrete mixture (volume of 26 kilograms per cubic meter of concrete) and turned on the concrete mixer to allow the added solution to be compatible with the Mix concrete for 15 seconds and add a special solution for cold storage equal to 0.56 liters, stir the concrete for 30 seconds, then finished. Ready-mixed concrete used for cold storage 2. Cold room ready-mixed concrete according to claim 1. Where the concrete mix proportion is as follows The amount of cement is 309 kilograms per cubic meter. Fly ash content is 54 kg / m3. The amount of water mixed with concrete is 106 kg per cubic meter. The amount of sand is 855 kg per cubic meter. The maximum size of stone is 19.0 mm, equal to 820 kg per cubic meter. The maximum size of the stone is 6.0 mm. Is equal to 281 kg per cubic meter. The volume of strong concrete admixture is 1.54 liters per cubic meter. Cold room specific mixtures equal to 0.56 liters per cubic meter. .................................................. .................................................. .................................................. ...... 1. The production process of ready-mixed concrete for cold storage has the following steps: a. Prepare concrete mixers that are clean inside and the inside surface is wet. (Not completely dry) and aggregates (rock and sand) with moisture in the state of saturated water and dry surface (saturated surface dry). B. Weighing rock size 19.0 mm, the volume equal to 820 kg per cubic meter. And the maximum size of stone at 6.0 mm is equal to 281 kg / m3 And 309 kilograms of cement per cubic meter into the concrete mixer. Then turn on the machine at a speed of 18 rpm to mix the rock and sand and cement homogeneously in the mixer for 1 minute, then weigh and add. Fly ash volume equal to 54 kg cubic meter. With the mixer continuously turned on for 30 seconds c. When the cement, fly ash, sand and stone are mixed together, Then add three-fourths of the total mixed water or 80 kilograms per cubic meter. However, while adding water, turn on the concrete mixer so that The added water is well combined for 30 seconds. D. When the added water is mixed well with sand, stone and cement Therefore began to add a strong concrete admixture of 1.54 liters per cubic meter By mixing it with the remaining concrete mixture (volume 26 kg / m3) and turning on the concrete mixer to make the added solution mix well with the mixture. Concrete for 15 seconds and add a special solution of the cold room equal to 0.56 liters, stir the concrete again for 30 seconds, then finished. Ready-mixed concrete used in cold storage. 2. Production process of ready-mixed concrete in cold storage according to claim 1, where the concrete mix proportion is as follows: Cement content is 309 kilograms per cubic meter. Fly ash content is 54 kg / m3. The amount of water mixed with concrete is 106 kg per cubic meter. The amount of sand is 855 kg per cubic meter. The maximum size of stone is 19.0 mm. Is 820 kilograms per cubic meter. The largest volume of stone is 6.0 mm. Is equal to 281 kg per cubic meter. The volume of strong concrete admixture is 1.54 liters per cubic meter. Cold room specific solution equal to 0.56 Liters per cubic meter