Radiation-proof concrete and production process thereof

A production process and concrete technology, applied in the field of concrete, can solve the problems of difficult to play a role in radiation protection, poor strength and performance, etc.

Inactive Publication Date: 2021-05-28
山东阳华建筑安装工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ordinary concrete is difficult to play a good role in radiation protection, and its strength performance is also poor.

Method used

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  • Radiation-proof concrete and production process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] This embodiment provides a kind of anti-radiation concrete, which is prepared by the following production process:

[0045] Preparation of mixed mineral material: mix 1400kg of magnetite sand, 1800kg of magnetite ore, 200kg of cement, 50kg of mineral admixture, and 25kg of anti-cracking agent, and stir evenly at a stirring speed of 1.2m / s to obtain mixed mineral material; Mineral admixture is a mixture of fly ash above grade II of the national standard and concrete slag powder above grade S95 in a ratio of 2:1. The effective iron content of the above-mentioned magnet placer and above-mentioned magnetite ore is 80%. The apparent density is 4900kg / m 3 , the fineness modulus of the above-mentioned magnetite placer is 2.3, the particle size of the above-mentioned magnetite ore is 15mm, and the content of needle flake ore is 5%.

[0046] Finished product preparation: Add 6kg of water reducer and 150kg of water to the mixed mineral material, stir for 120s at a stirring speed...

Embodiment 2

[0048] This embodiment provides a kind of anti-radiation concrete, which is prepared by the following production process:

[0049] Preparation of mixed mineral material: mix 1500kg of magnetite sand, 2000kg of magnetite ore, 400kg of cement, 180kg of mineral admixture, and 45kg of anti-cracking agent, and stir evenly at a stirring speed of 1.5m / s to obtain mixed mineral material; Mineral admixture is a mixture of fly ash above national standard II and concrete slag above S95 in a ratio of 1:3. The effective iron content of the above-mentioned magnet placer and above-mentioned magnetite ore is 85%, and the dry state The lower apparent density is 5000kg / m 3 , the fineness modulus of the above-mentioned magnetite placer is 2.8, the particle size of the above-mentioned magnetite ore is 16mm, and the content of needle flake ore is 3%.

[0050] Finished product preparation: Add 12kg of water reducer and 200kg of water to the mixed mineral material, stir for 150s at a stirring speed...

Embodiment 3

[0052] This embodiment provides a kind of anti-radiation concrete, which is prepared by the following production process:

[0053] Preparation of mixed mineral material: mix 1450kg of magnetite sand, 1900kg of magnetite ore, 300kg of cement, 110kg of mineral admixture, and 35kg of anti-cracking agent, and stir evenly at a stirring speed of 1.4m / s to obtain mixed mineral material; The mineral admixture is a mixture of fly ash above national standard II and concrete slag above S95 in a ratio of 1:5. The effective iron content of the above-mentioned magnet placer and the above-mentioned magnetite ore is 85%, and the dry state The lower apparent density is 5000kg / m 3 , the fineness modulus of the above-mentioned magnetite placer is 2.5, the particle size of the above-mentioned magnetite ore is 10mm, and the content of needle-shaped ore is 4%.

[0054] Finished product preparation: Add 9kg of water reducing agent and 170kg of water to the mixed mineral material, stir for 130s at a...

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Abstract

The invention provides radiation-proof concrete, and relates to the technical field of concrete. The radiation-proof concrete production technology comprises the following steps of mixed mineral aggregate preparation and finished product preparation, the technological process is simple, cost saving is facilitated, and the prepared concrete is good in radiation-proof performance and high in strength performance. In addition, the invention also provides radiation-proof concrete which comprises the following raw materials in parts by weight: 200-400 parts of cement, 50-180 parts of mineral admixture, 1400-1500 parts of magnetite sand ore, 1800-2000 parts of magnetite ore, 25-45 parts of anti-cracking agent, 6-12 parts of water reducing agent and 150-200 parts of water. The radiation-proof concrete can effectively shield rays, has good radiation-proof effect and high strength performance, is easy to construct, and is economical and environment-friendly.

Description

technical field [0001] The invention relates to the technical field of concrete, in particular to a radiation-proof concrete and a production process thereof. Background technique [0002] Concrete is a general term for engineering composite materials in which aggregates are cemented into a whole by cementitious materials. Generally speaking, the term concrete refers to the cement concrete obtained by using cement as the cementitious material, sand and stone as the aggregate; mixed with water (may contain admixtures and admixtures) in a certain proportion, and stirred. Concrete, which is widely used in civil engineering. Ordinary concrete is difficult to play a good role in radiation protection, and its strength performance is also poor. Contents of the invention [0003] The object of the present invention is to provide a radiation-proof concrete production process, which has a simple process flow, helps to save costs, and the prepared concrete has good radiation-proof ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00
CPCC04B28/00C04B2201/50C04B14/308C04B2103/302C04B18/08C04B18/141
Inventor 吴传英
Owner 山东阳华建筑安装工程有限公司
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