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High-performance artificial sand concrete prepared by using mountain flour and rice hull ash as admixture

A technology of concrete and artificial sand, applied in the field of building materials, to achieve the effects of cheap and easy raw materials, increased utilization and added value, and reduced production costs

Inactive Publication Date: 2018-06-22
JINAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Stone powder is produced in the process of producing artificial sand. With the large-scale utilization of artificial sand, the production of stone powder will also increase. At present, there is no concrete prepared by using stone powder and rice husk ash as a mixed admixture.

Method used

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  • High-performance artificial sand concrete prepared by using mountain flour and rice hull ash as admixture
  • High-performance artificial sand concrete prepared by using mountain flour and rice hull ash as admixture
  • High-performance artificial sand concrete prepared by using mountain flour and rice hull ash as admixture

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The preparation of the four kinds of concrete, the ratio of the raw materials used are shown in Table 1.

[0031] Raw material ratio of concrete in Table 1 4

[0032]

[0033] Test the working performance and compressive strength of the concrete in the above 4, and the results are shown in Table 2.

[0034] Table 2 Work performance and compressive strength of four kinds of concrete

[0035]

[0036] It can be seen from Table 1 and Table 2 that the first group is compared with the data of the second, third, and fourth groups, and it can be seen that when the mixed admixture is used to replace 10% of the cement in the concrete, the workability and compressive strength of the concrete prepared are excellent. Concrete made from pure cement. From the comparison between the data of the 2nd, 3rd, and 4th groups, it can be seen that when the mass ratio of stone powder and rice husk ash in the mixed admixture is 1:1.5, the working performance and compressive strength of ...

Embodiment 2

[0039] The ratio of the admixture in Example 1 was changed from 10% to 20%, and the consumption of other raw materials was unchanged, and the concrete in Preparation 4 was shown in Table 3 for the consumption of each raw material.

[0040] Table 3 Raw material ratio of 4 kinds of concrete

[0041]

[0042] Test the working performance and compressive strength of the concrete in the above 4, and the results are shown in Table 4.

[0043] Table 4 Work performance and compressive strength of 4 kinds of concrete

[0044]

[0045] It can be seen from Table 3 and Table 4 that the first group is compared with the data of the second, third and fourth groups, and it can be seen that when the mixed admixture is used to replace 20% of the cement in the concrete, the workability and compressive strength of the concrete prepared are excellent. Concrete made from pure cement. From the comparison between the data of the 2nd, 3rd, and 4th groups, it can be seen that when the mass ratio ...

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Abstract

The invention discloses high-performance artificial sand concrete prepared by using mountain flour and rice hull ash as admixtures. One cubic meter of concrete is prepared from the following raw materials in parts by weight: 500 to 650 parts of cement, 60 to 140 parts of admixtures, 1000 to 1100 parts of coarse aggregates, 650 to 730 parts of artificial sand, 150 to 170 parts of water and 13 to 18parts of water reducing agents, wherein the admixtures are the mountain flour and the rice hull ash. In the used mixed admixtures, the mountain flour and the rice hull ash have rich resources; the raw materials are cheap and can be easily obtained; by selecting the mixed admixtures in the proper proportion, high-performance concrete with good work performance and higher compressive strength is obtained; the utilization rate and the additional value of the mountain flour and the rice hull ash are improved; meanwhile, the use quantity of cement is reduced; the supply pressure of the high-performance concrete on the cement and superfine slag powder is relieved; the concrete manufacturing cost is reduced; the sustainable development requirements are met.

Description

technical field [0001] The field of building materials of the present invention, more specifically, relates to a high-performance artificial sand concrete prepared by using stone powder and rice husk ash as admixtures. Background technique [0002] With the continuous enhancement of people's awareness of the protection of natural resources and the natural environment, after the promulgation of the national sand and gravel standard "Sand for Construction" (GB / T14684-2001), artificial sand officially entered the national standard as a new type of construction sand . At present, there are more and more researches on artificial sand. my country's artificial sand resources are very abundant. It can replace natural sand to prepare high-performance concrete, which can turn cost into treasure. This can protect the environment and reduce the serious ecological damage caused by river sand mining to the river bed. On the other hand, it can also ease my river crossing The problem of sa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04
CPCC04B28/04C04B2201/50C04B18/12C04B14/06C04B24/24C04B14/02C04B18/101
Inventor 欧阳东杨家雯
Owner JINAN UNIVERSITY
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