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C40 ordinary Portland cement base radiation shield concrete and preparation method thereof

A common Portland cement and concrete technology, applied in the field of concrete, can solve the problems of resource waste, environmental pollution, land occupation, etc., and achieve the effects of saving material costs, good radiation protection performance, and low cost

Inactive Publication Date: 2019-01-04
成都宏基建材股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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.

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  • C40 ordinary Portland cement base radiation shield concrete and preparation method thereof

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Effect test

Embodiment 1

[0034] A C40 ordinary Portland cement-based radiation-proof concrete, which is composed of the following materials: 350 parts of cement, 900 parts of fine aggregate, 1350 parts of coarse aggregate, 18 parts of neutron absorber, 0.6 part of water reducing agent, and 160 parts of water , in parts by weight.

[0035] Among them, the cement is selected from P.O 42.5 cement, provided by Dujiangyan Lafarge Cement Co., Ltd., and its performance test results are as follows: standard consistency water demand 26.7%, specific surface area 369m 2 kg -1 , initial setting time 170min, final setting time 246min, 3-day flexural strength 6.0MPa, 28-day flexural strength 8.3MPa, 3-day compressive strength 31.2MPa, 28-day compressive strength 50.1MPa, SO 3 The content is 2.03% (≤3.5%), the MgO content is 2.41% (≤5%), and the stability is qualified.

[0036] Among them, the fine aggregate is selected from the water-quenched copper slag after mechanical treatment, and the mechanical treatment me...

Embodiment 2

[0045] A C40 ordinary Portland cement-based radiation-proof concrete, which is composed of the following materials: 340 parts of cement, 900 parts of fine aggregate, 1350 parts of coarse aggregate, 18 parts of neutron absorber, 0.6 part of water reducing agent, and 158 parts of water , in parts by weight.

[0046] Among them, the cement is selected from P.O 42.5 cement, provided by Dujiangyan Lafarge Cement Co., Ltd., and its performance test results are as follows: standard consistency water demand 26.7%, specific surface area 369m 2 kg -1 , initial setting time 170min, final setting time 246min, 3-day flexural strength 6.0MPa, 28-day flexural strength 8.3MPa, 3-day compressive strength 31.2MPa, 28-day compressive strength 50.1MPa, SO 3 The content is 2.03% (≤3.5%), the MgO content is 2.41% (≤5%), and the stability is qualified.

[0047] Among them, the fine aggregate is selected from the water-quenched copper slag after mechanical treatment, and the mechanical treatment me...

Embodiment 3

[0056] A C40 ordinary Portland cement-based radiation-proof concrete, which is composed of the following materials: 360 parts of cement, 900 parts of fine aggregate, 1350 parts of coarse aggregate, 18 parts of neutron absorber, 0.6 part of water reducing agent, and 162 parts of water , in parts by weight.

[0057] Among them, the cement is selected from P.O 42.5 cement, provided by Dujiangyan Lafarge Cement Co., Ltd., and its performance test results are as follows: standard consistency water demand 26.7%, specific surface area 369m 2 kg -1 , initial setting time 170min, final setting time 246min, 3-day flexural strength 6.0MPa, 28-day flexural strength 8.3MPa, 3-day compressive strength 31.2MPa, 28-day compressive strength 50.1MPa, SO 3 The content is 2.03% (≤3.5%), the MgO content is 2.41% (≤5%), and the stability is qualified.

[0058]Among them, the fine aggregate is selected from the water-quenched copper slag after mechanical treatment, and the mechanical treatment met...

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Abstract

The invention belongs to the field of concrete and in particular discloses C40 ordinary Portland cement base radiation shield concrete and a preparation method thereof. The concrete consists of the following raw materials in parts by weight: 330-370 parts of cement, 800-1000 parts of fine aggregate, 1200-1500 parts of crude aggregate, 10-20 parts of a neutron absorber, 0.5-0.7 part of a water reduction agent and 150-170 parts of water. The C40 ordinary Portland cement base radiation shield concrete disclosed by the invention meets C40 concrete strength requirements, is free of separation phenomenon, is high in collapsbillity and expansion degree, has a volume weight within 2800-2850 kg.m<3>, meets requirements of radiation shield concrete on volume weights, and meanwhile has the characteristics of being excellent in working performance, high in radiation shield property, low in cost, and the like, and problems that conventional radiation shield concrete is liable to separate, low in homogeneity, low in construction performance, and the like, can be solved.

Description

technical field [0001] The invention belongs to the field of concrete, and specifically discloses a C40 ordinary Portland 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, it is generally necessary to ...

Claims

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Application Information

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IPC IPC(8): C04B28/04
CPCC04B28/04C04B2201/50C04B18/141C04B14/14C04B22/08C04B2103/302
Inventor 肖超黄俊李文平
Owner 成都宏基建材股份有限公司
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