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Industrial production process of high-strength self-compacting concrete

A technology of self-compacting concrete and production process, applied in the field of concrete production and processing, can solve the problems of reducing the overall strength of concrete and the existence of cement aggregates, and achieve the effects of improving the distribution form of hydration products, improving the uniformity and improving the overall structural strength.

Inactive Publication Date: 2020-08-14
上海兆捷实业发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the above application documents, the cement and the aggregate components are mixed first, and then water is added to stir and mix. In this way, a part of the cement particles are often wrapped by stones and enter the mixer together. After encountering water, they rotate with the mixer and quickly form particles of different sizes. If the cement aggregates are mixed, there will still be some cement aggregates in the mixture until the end of mixing, which cannot be fully hydrated, which will greatly reduce the overall strength of the concrete. Therefore, it is necessary to propose a new solution to solve the above problems.

Method used

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  • Industrial production process of high-strength self-compacting concrete
  • Industrial production process of high-strength self-compacting concrete
  • Industrial production process of high-strength self-compacting concrete

Examples

Experimental program
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Effect test

Embodiment 1

[0033] Embodiment 1: A kind of high-strength self-compacting concrete industrialized production process specifically comprises the following steps: Step 1, raw material preparation, prepares the strength self-compacting concrete raw material of following weight parts: 550 parts of cement raw materials, 70 parts of fly ash, 60 parts of mineral powder, 160 parts of water, 790 parts of medium sand, 800 parts of gravel and 19 parts of admixture;

[0034]Step 2, mixing the slurry, mixing the corresponding parts by weight of cement, fly ash, mineral powder and 20-30% by weight of water, the stirring speed is 50rpm, and the stirring time is 60s to obtain the slurry;

[0035] Step 3, preparing the slurry, adding gravels in corresponding parts by weight to the slurry obtained in step 2, mixing evenly, the stirring speed is 40rpm, and the stirring time is 70s to obtain the slurry;

[0036] Step 4, prepare the mixture, add the corresponding parts by weight of medium sand, admixture and w...

Embodiment 2

[0039] Embodiment 2: A kind of industrialized production process of high-strength self-compacting concrete, differs from Embodiment 1 in that it specifically includes the following steps:

[0040] Step 1, raw material preparation, preparation of the strength self-compacting concrete raw material of following parts by weight: 540 parts of cement raw material, 65 parts of fly ash, 55 parts of mineral powder, 150 parts of water, 780 parts of medium sand, 790 parts of crushed stone and additional 18 doses;

[0041] Step 2, mixing the slurry, mixing the corresponding parts by weight of cement, fly ash, mineral powder and 20-30% by weight of water, the stirring speed is 50rpm, and the stirring time is 60s to obtain the slurry;

[0042] Step 3, preparing the slurry, adding gravels in corresponding parts by weight to the slurry obtained in step 2, mixing evenly, the stirring speed is 40rpm, and the stirring time is 70s to obtain the slurry;

[0043] Step 4, prepare the mixture, add t...

Embodiment 3

[0045] Embodiment 3: A kind of industrialized production process of high-strength self-compacting concrete, the difference from Embodiment 1 is that it specifically includes the following steps:

[0046] Step 1, raw material preparation, preparation of the strength self-compacting concrete raw material of following parts by weight: 560 parts of cement raw materials, 75 parts of fly ash, 65 parts of mineral powder, 170 parts of water, 800 parts of medium sand, 810 parts of crushed stone and additional 20 doses;

[0047] Step 2, mixing the slurry, mixing the corresponding parts by weight of cement, fly ash, mineral powder and 20-30% by weight of water, the stirring speed is 50rpm, and the stirring time is 60s to obtain the slurry;

[0048] Step 3, preparing the slurry, adding gravels in corresponding parts by weight to the slurry obtained in step 2, mixing evenly, the stirring speed is 40rpm, and the stirring time is 70s to obtain the slurry;

[0049] Step 4, prepare the mixtur...

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Abstract

The invention discloses an industrial production process of high-strength self-compacting concrete, relates to the technical field of concrete production and processing, and solves the problem that the overall strength of the concrete is greatly reduced due to the fact that cement aggregates exist in a mixture and cannot be fully hydrated in the production process of the concrete. The industrial production process comprises the following steps: 1, preparing raw materials, 2, mixing the slurry, 3, preparing slurry, 4, preparing a mixed material, and step 5, discharging a finished product. According to the process, the mixed material obtained in the step 3 is heated to 50-60 DEG C in 5-10 seconds, then is subjected to heat preservation for 2-5 seconds, and finally is cooled to 20-30 DEG C in5-10 seconds along with continuous stirring to obtain the high-strength self-compacting concrete. In the application process, formation of cement aggregates can be avoided, the diffusion uniformity of cement particles is greatly improved, and the overall strength of concrete is improved.

Description

technical field [0001] The invention relates to the technical field of concrete production and processing, more specifically, it relates to an industrialized production process of high-strength self-compacting concrete. Background technique [0002] High-performance concrete is considered to be the most comprehensive concrete in the world due to its excellent properties such as high durability, high workability, high strength and high volume stability. It has been used in many important projects so far, especially It shows its unique advantages in bridges, high-rise buildings, seaport buildings and other projects, and has produced obvious benefits in terms of project safety service life, economic rationality, and adaptability to environmental conditions. Therefore, it has been accepted by scholars from all over the world. It is considered to be the development direction of concrete technology in the future. [0003] A high-strength anti-seepage concrete and its production m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B40/00C04B40/02C04B22/00
CPCC04B22/002C04B28/00C04B40/0028C04B40/0263C04B18/08C04B18/141C04B14/02C04B14/06
Inventor 朱亚楠朱可可
Owner 上海兆捷实业发展有限公司
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