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Quick-setting and quick-hardening calcium fluoraluminate cement-based radiation-prevention concrete and preparation method thereof

A calcium hard fluoroaluminate and concrete technology, applied in the field of concrete, can solve the problems of waste of resources, occupying land, polluting the environment, etc., and achieve the effects of saving material cost, low cost and good radiation protection performance

Inactive Publication Date: 2019-02-12
成都宏基建材股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The annual discharge of copper slag in my country is huge, and most of them are in the state of accumulation and storage. At present, the stock of copper slag in my country has already exceeded 50 million tons, which not only occupies land, pollutes the environment, but also causes a huge waste of resources.

Method used

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  • Quick-setting and quick-hardening calcium fluoraluminate cement-based radiation-prevention concrete and preparation method thereof

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Effect test

Embodiment 1

[0036] A fast-setting and rapid-hardening calcium fluoroaluminate cement-based radiation-proof concrete, which is composed of the following materials: 300 parts of cement, 1000 parts of fine aggregate, 1300 parts of coarse aggregate, 18 parts of neutron absorber, 0.5 part of water reducing agent, 0.15 parts of retarder, 153 parts of water, in parts by weight.

[0037] Among them, the cement is selected from the fast-setting rapid-hardening calcium fluoroaluminate cement provided by Changzhou Runxin Cement Co., Ltd. The performance test results are as follows: the specific surface area is 352m 2 kg -1 , setting time 8min, 1h compressive strength 22.5MPa.

[0038] Among them, the fine aggregate is selected from the water-quenched copper slag after mechanical treatment, and the mechanical treatment method is as follows: first, the water-quenched copper slag is crushed in a cement test ball mill (running time is 3min), so that the water-quenched copper slag The weak structure is...

Embodiment 2

[0048] A fast-setting and rapid-hardening calcium fluoroaluminate cement-based radiation-proof concrete, which is composed of the following materials: 290 parts of cement, 1000 parts of fine aggregate, 1300 parts of coarse aggregate, 18 parts of neutron absorber, 0.5 part of water reducing agent, 0.15 parts of retarder, 150 parts of water, in parts by weight.

[0049] Among them, the cement is selected from the fast-setting rapid-hardening calcium fluoroaluminate cement provided by Changzhou Runxin Cement Co., Ltd. The performance test results are as follows: the specific surface area is 352m 2 kg -1 , setting time 8min, 1h compressive strength 22.5MPa.

[0050] Among them, the fine aggregate is selected from the water-quenched copper slag after mechanical treatment, and the mechanical treatment method is as follows: first, the water-quenched copper slag is crushed in a cement test ball mill (running time is 3min), so that the water-quenched copper slag The weak structure is...

Embodiment 3

[0060] A fast-setting and rapid-hardening calcium fluoroaluminate cement-based radiation-proof concrete, which is composed of the following materials: 310 parts of cement, 1000 parts of fine aggregate, 1300 parts of coarse aggregate, 18 parts of neutron absorber, 0.5 part of water reducing agent, 0.15 parts of retarder, 155 parts of water, in parts by weight.

[0061] Among them, the cement is selected from the fast-setting rapid-hardening calcium fluoroaluminate cement provided by Changzhou Runxin Cement Co., Ltd. The performance test results are as follows: the specific surface area is 352m 2 kg -1 , setting time 8min, 1h compressive strength 22.5MPa.

[0062]Among them, the fine aggregate is selected from the water-quenched copper slag after mechanical treatment, and the mechanical treatment method is as follows: first, the water-quenched copper slag is crushed in a cement test ball mill (running time is 3min), so that the water-quenched copper slag The weak structure is ...

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Abstract

The invention belongs to the field of concrete and in particular discloses quick-setting and quick-hardening calcium fluoraluminate cement-based radiation-prevention concrete and a preparation methodthereof. The concrete is prepared from the following raw materials in parts by weight: 280 to 320 parts of cement, 900 to 1200 parts of fine aggregate, 1200 to 1500 parts of coarse aggregate, 10 to 20parts of a neutron absorbent, 0.4 to 0.6 part of a water reducing agent, 0.1 to 0.3 part of a set retarder and 145 to 165 parts of water. The invention provides the quick-setting and quick-hardeningcalcium fluoraluminate cement-based radiation-prevention concrete; the concrete meets the strength requirements of C30 concrete; the compressive strength within 2h reaches about 18MPa and the operabletime is greater than 30min; no segregation phenomenon occurs and the slump is relatively good; the volume weight is in a range of 2850 to 2900kg.m<3> and meets the requirements of radiation-prevention concrete on the volume weight.

Description

technical field [0001] The invention belongs to the field of concrete, and specifically discloses a fast-setting rapid-hardening calcium fluoroaluminate cement-based radiation-proof concrete and a preparation method thereof. Background technique [0002] Radiation exists throughout the universe and can be divided into natural radiation and artificial radiation. Natural radiation mainly comes from cosmic rays, etc. Artificial radiation mainly comes from α, β, γ, X and neutron streams and other rays produced in the process of applying nuclear technology in nuclear power, military, education, medical treatment, scientific research and other fields. After being exposed to these rays for a long time, it is easy to induce cancer, leukemia, thyroid dysfunction, infertility, birth defects and other diseases, and it is also easy to induce gene mutations in other animals or plants. In order to prevent radiation from harming human beings, when building buildings with radiation sources...

Claims

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Application Information

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IPC IPC(8): C04B28/06
CPCC04B28/06C04B2111/00862C04B2201/05C04B2201/20C04B2201/50C04B18/144C04B14/14C04B14/36C04B24/24C04B24/06
Inventor 肖超黄俊
Owner 成都宏基建材股份有限公司
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