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A concrete preparation process

A preparation process, concrete technology, applied in the field of concrete preparation process, can solve problems such as weak strength, affecting concrete workability, strength and durability, and insufficient hydration of cementitious materials, so as to facilitate disassembly and degradation, and improve hydration Product distribution state, effect of improving microscopic uniformity

Active Publication Date: 2022-01-18
山西住工建筑科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this mixing process has the following disadvantages: the cementitious material is easy to form small gelatinous aggregates after adding water, resulting in insufficient hydration of the cementitious material, and a large number of air bubbles are easily formed between each component material, which becomes a weaker link in strength and affects the concrete. Workability, strength and durability

Method used

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  • A concrete preparation process
  • A concrete preparation process
  • A concrete preparation process

Examples

Experimental program
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Effect test

Embodiment 1

[0042] refer to figure 1 , is a kind of concrete preparation technology disclosed by the present invention, and it comprises the following processing steps:

[0043] S1: After mixing water and surface wetting agent evenly, put in fine aggregate, and stir at a speed of 40r / min for 10s to prepare the first mixture; the weight ratio of water, fine aggregate and surface wetting agent is 1:3:0.01;

[0044] The fine aggregate comprises the following raw materials in weight percentage: 30% machine-made sand and 70% natural sand;

[0045] The surface wetting agent adopts ST-5100 non-ionic gemini surfactant produced by Shanghai Sangjing Chemical Co., Ltd.;

[0046] S2: Add the gel material and dispersant to the first mixture, first stir at a stirring speed of 100r / min for one-third of the total stirring time, then stir at a stirring speed of 60r / min for the remaining two-thirds of the time , the total stirring time is 20s, after stirring evenly, the second mixture is prepared; the w...

Embodiment 1

[0061] The difference between embodiment 10-13 and embodiment 1 is that the weight ratio of fine aggregate, coarse aggregate, fiber filler and water in step 3 is as shown in the table below:

[0062]

[0063]

[0064] The difference between embodiment 14-17 and embodiment 1 is that the weight ratio of admixture and fine aggregate in step 4 is as shown in the following table:

[0065]

[0066] The difference between embodiment 18-21 and embodiment 1 is that the fine aggregate comprises the following raw materials in weight percent:

[0067]

[0068] The difference between Embodiment 22-25 and Embodiment 1 is that the gel material comprises the following raw materials in weight percentage:

[0069]

[0070] The difference between Examples 26-29 and Example 1 is that the content of needle-shaped coarse aggregate in the coarse aggregate is shown in the table below:

[0071]

[0072]

[0073] The difference between embodiments 30-33 and embodiment 1 is that th...

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Abstract

The invention relates to a concrete preparation process, which includes the following process steps: S1: After stirring water and a surface wetting agent evenly, putting fine aggregate into it, and after stirring evenly, a first mixture is prepared; water, fine aggregate and The weight ratio of the surface wetting agent is 1: (3‑7): (0.01‑0.03); S2: add the gel material and dispersant to the first mixture, and stir evenly to prepare the second mixture; gel The weight ratio of material, fine aggregate and dispersant is 1: (1‑1.4): (0.008‑0.012); S3: add coarse aggregate, fiber filler and water into the second mixture, and stir well to obtain The third mixture; the weight ratio of fine aggregate, coarse aggregate, fibrous filler and water is 1: (2‑2.4): (0.06‑0.1): (0.08‑0.12); S4: add additives in the third mixture After stirring evenly, the concrete slurry is prepared; the weight ratio of admixture to fine aggregate is (0.02‑0.03):1. The workability and workability of the mixed soil are improved by rationally setting the feeding sequence of the concrete raw materials.

Description

technical field [0001] The invention relates to the technical field of concrete preparation, in particular to a concrete preparation process. Background technique [0002] As the main component of concrete, cement will emit a large amount of dust and harmful gases during the production process, seriously polluting the environment. The traditional feeding and mixing of cement concrete is to mix the measured cement, admixture, fine aggregate, coarse aggregate, water and admixture together according to the mix ratio. But this mixing process has the following disadvantages: the cementitious material is easy to form small gelatinous aggregates after adding water, resulting in insufficient hydration of the cementitious material, and a large number of air bubbles are easily formed between each component material, which becomes a weaker link in strength and affects the concrete. Workability, strength and durability. Contents of the invention [0003] The purpose of the present i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04
CPCC04B28/04C04B2201/50C04B2111/00017C04B2111/00405C04B14/06C04B2103/406C04B18/08C04B18/146C04B18/141C04B2103/408C04B14/02C04B14/48C04B14/386C04B14/46C04B24/42C04B24/283C04B24/2664C04B24/005C04B24/10C04B24/04C04B2103/50
Inventor 秦发廷植福明周志文
Owner 山西住工建筑科技有限公司
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