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Iron sand concrete and preparation method thereof

A technology for concrete and waste concrete, applied in the field of concrete, can solve problems such as the influence of iron sand concrete strength, and achieve the effect of prolonging the initial setting time

Inactive Publication Date: 2020-01-07
四川信敏绿色新建筑材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, some geographical environments near the sea usually contain more corrosive media, such as the influence of chloride ions, etc., which will cause the iron sand aggregate in the concrete to be subject to certain corrosion effects, and the strength of iron sand concrete will be affected to a certain extent.

Method used

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  • Iron sand concrete and preparation method thereof
  • Iron sand concrete and preparation method thereof
  • Iron sand concrete and preparation method thereof

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Embodiment 1

[0046] An iron sand concrete disclosed by the invention comprises the following raw materials in parts by weight:

[0047]

[0048]

[0049] Wherein, super retarder comprises the following components by weight percentage:

[0050]

[0051] The emulsifier in the super retarder is OP-40 emulsifier.

[0052] Wherein, the coarse aggregate is a mixture of 30% by mass of natural crushed stone and 70% of pretreated waste concrete aggregate.

[0053] Iron sand concrete is prepared by the following steps:

[0054] Pretreatment of waste concrete aggregates:

[0055] Step 1: breaking waste aggregates into aggregates with a particle size of 5-7mm;

[0056] Step 2: Screening the crushed waste aggregate to remove large particles of impurities;

[0057] Step 3: Soak the waste aggregate treated in step 2 in the pretreatment of pretreatment auxiliary agent for 8 hours;

[0058] Step 3: Take out the aggregates, wash and dry them to obtain pretreated waste concrete aggregates.

[...

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Abstract

The invention discloses iron sand concrete and a preparation method thereof, and relates to the technical field of concrete. The concrete comprises the following raw materials in parts by weight: 460-680 parts of a cementing material, 1100-1600 parts of a coarse aggregate, 600-700 parts of iron sand, 3-8 parts of an antirust agent, 200-300 parts of an adsorption material, 8-12 parts of a polycarboxylate water reducing agent and 180-200 parts of water. The coarse aggregate comprises 20%-30% of natural gravels and 70%-80% of a waste concrete aggregate. The preparation method has the advantages of protecting the iron sand concrete and improving the strength of the iron sand concrete.

Description

technical field [0001] The invention relates to the technical field of concrete, in particular to an iron sand concrete and a preparation method thereof. Background technique [0002] Concrete refers to the artificial stone made of cement as the main cementitious material, mixed with water, sand, stones, chemical admixtures and mineral admixtures when necessary, mixed in appropriate proportions, uniformly stirred, compacted and cured. Concrete has the characteristics of rich raw materials, low price and simple production process, so its consumption is increasing. Concrete is not only used in various civil engineering, but also in shipbuilding, machinery industry, marine development, geothermal engineering, etc. Concrete is also an important material. [0003] Adding iron sand to the existing concrete enhances the cohesive force between the aggregate and the cement slurry, improves the compressive strength of the concrete, and improves the wear resistance. However, some geo...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B24/32C04B24/20C04B24/18C04B24/08C04B20/10C04B18/16C04B103/61C04B103/22C04B111/20
CPCC04B20/1048C04B28/00C04B40/0039C04B2103/0078C04B2103/22C04B2103/61C04B2111/20C04B18/08C04B14/02C04B18/16C04B2103/302C04B24/005C04B24/20C04B24/16C04B24/04C04B22/165C04B24/06C04B24/18C04B22/126C04B24/10C04B24/32C04B14/36C04B22/00C04B20/1022Y02W30/91
Inventor 周洪林李桂冲梁新宇
Owner 四川信敏绿色新建筑材料科技有限公司