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Heavy concrete as well as preparation method and application thereof

A heavy concrete and concrete technology, applied in the field of concrete, can solve the problems of weakened flow performance, difficult concrete forming, high pumping cost, etc., and achieve the effect of protecting the ecological environment, promoting the structural adjustment of the concrete industry and the sustainable development of society

Pending Publication Date: 2022-02-18
GUANGZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But at the same time, after adding heavy metal solid waste with high density, the working performance of concrete is reduced, and the low machinability makes heavy concrete hindered to a certain extent in the application of actual engineering, mainly reflected in: flow performance Weakened, reduced moldability, wherein poor fluidity leads to high pumping costs, low moldability leads to difficulties in concrete molding, etc. Therefore, improving the work performance of heavy concrete is the key to promoting its comprehensive application in practical engineering where the

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  • Heavy concrete as well as preparation method and application thereof
  • Heavy concrete as well as preparation method and application thereof
  • Heavy concrete as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] This embodiment is a kind of concrete. The preparation raw materials and proportions of the concrete are shown in Table 1, in parts by weight.

[0056] Raw material ratio used in table 1 embodiment 1

[0057] water-binder ratio water cement Silica fume fine aggregate Coarse aggregate Superplasticizer iron slag sand 0.4 221.44 525.92 20.54 397.5 810 1.69 1067.57

[0058] Cement: P.O 42.5R grade ordinary Portland cement produced by Guangzhou Shijing Cement Company, with an apparent density of 3100kg / m 3 , particle gradation as attached figure 1 shown.

[0059] Silica fume: Grade 99 silica fume produced by Sichuan Langtian Resources Comprehensive Utilization Co., Ltd., with an apparent density of 2300kg / m 3 , particle gradation as attached figure 1 shown.

[0060] Iron slag sand: Converter slag produced by Huaxin Xianggang Cement Plant Co., Ltd., which is crushed and sieved into iron slag with a particle size of 0.075-5mm and an ...

Embodiment 2

[0069] This embodiment is a kind of concrete. The preparation raw materials and proportions of the concrete are shown in Table 1, in parts by weight.

[0070] Raw material ratio used in table 2 embodiment 2

[0071] water-binder ratio water cement Silica fume fine aggregate Coarse aggregate Superplasticizer iron slag sand 0.4 221.44 498.24 41.07 397.5 810 2.28 1067.57

[0072] Cement: P.O 42.5R grade ordinary Portland cement produced by Guangzhou Shijing Cement Company, with an apparent density of 3100kg / m 3 , particle gradation as attached figure 1 shown.

[0073] Silica fume: Grade 99 silica fume produced by Sichuan Langtian Resources Comprehensive Utilization Co., Ltd., with an apparent density of 2300kg / m 3 , particle gradation as attached figure 1 shown.

[0074] Iron slag sand: Converter slag produced by Huaxin Xianggang Cement Plant Co., Ltd., which is crushed and sieved into iron slag with a particle size of 0.075-5mm and an ...

Embodiment 3

[0081] This embodiment is a kind of concrete. The preparation raw materials and proportions of the concrete are shown in Table 3, in parts by weight.

[0082] Raw material ratio used in table 3 embodiment 3

[0083] water-binder ratio water cement Silica fume fine aggregate Coarse aggregate Superplasticizer iron slag sand 0.4 221.44 498.24 41.07 0 810 2.21 2135.13

[0084] Cement: P.O 42.5R grade ordinary Portland cement produced by Guangzhou Shijing Cement Company, with an apparent density of 3100kg / m 3 , particle gradation as attached figure 1 shown.

[0085] Silica fume: Grade 99 silica fume produced by Sichuan Langtian Resources Comprehensive Utilization Co., Ltd., with an apparent density of 2300kg / m 3 , particle gradation as attached figure 1 shown.

[0086] Iron slag sand: Converter slag produced by Huaxin Xianggang Cement Plant Co., Ltd., which is crushed and sieved into iron slag with a particle size of 0.075-5mm and an appa...

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Abstract

The invention discloses heavy concrete and a preparation method and application thereof. The heavy concrete prepared through the method has the advantages that green raw materials are adopted, high strength, high fluidity, high segregation resistance, high gap passing ability and the like are achieved, and engineering application of converter slag can be further popularized. Thus, the heavy concrete plays a positive role in resolving serious excess capacity of the converter slag and implementing a green building action scheme, and has great significance in improving project quality, reducing the comprehensive cost of the whole life cycle of a project, developing circular economy, promoting technical progress and promoting structural adjustment of the concrete industry.

Description

technical field [0001] The invention belongs to the technical field of concrete, in particular to a heavy concrete and its preparation method and application. Background technique [0002] Due to the promotion of the concept of green production, vigorously develop and use green building materials, make full use of renewable resources, improve the quality of green buildings, promote efficient treatment and reuse of construction waste, and realize low-carbon environmental protection, energy conservation and emission reduction in the whole process of engineering construction. must do. Today, with the rapid development of civil engineering construction, concrete has become the most used man-made product in the world, and its annual consumption is second only to water. Sand aggregate is an important raw material for concrete preparation. According to statistics, in concrete structures, To use 1 ton of steel, 6 tons of cement and 36 tons of sand and gravel aggregate are required;...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B18/14
CPCC04B28/04C04B18/141C04B2111/00017C04B2201/20C04B18/146C04B2103/302C04B14/02C04B14/28C04B14/048C04B14/06Y02W30/91
Inventor 赖勉亨伍凯捷何正铭王庆陈靖昊吴家庞
Owner GUANGZHOU UNIVERSITY