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A kind of barite anti-radiation pumping concrete

A technology for pumping concrete and barite, which is applied in the field of barite anti-radiation pumping concrete to achieve the effects of easy segregation, simple structure and low price

Active Publication Date: 2016-03-09
SICHUAN HUASHI GREEN HOMELAND BUILDING MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing radiation-resistant concrete, the apparent density is ≥3600kg / m 3 still very rare

Method used

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  • A kind of barite anti-radiation pumping concrete
  • A kind of barite anti-radiation pumping concrete
  • A kind of barite anti-radiation pumping concrete

Examples

Experimental program
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Effect test

Embodiment 1

[0038] A barite anti-radiation pumping concrete, the concrete is based on the component unit kg / m 3 The mixing ratio is: cement: water: barite powder: barite sand: barite: synergist: admixture = [340~450]: [110~170]: [75~150]: [1000~1400 ]: [1800~2000]: [2~4]: [7~19]. The apparent density of the obtained concrete is 3700-3850kg / m3, and the 28d compressive strength reaches 25-65MPa. It has good slump / expansion suitable for pumping and pouring, and has good resistance to gamma rays and neutron rays. shielding effect.

Embodiment 2

[0040] A kind of barite anti-radiation pumping concrete, said concrete is according to the component unit kg / m 3 The mixing ratio is: cement: water: barite powder: barite sand: barite: synergist: polycarboxylate additive = [340~400]: [140~163]: [85~100]: [1155~1345]: [1857~1957]: [2~4]: [7.6~14.6]. The apparent density of the obtained concrete is 3750-3800kg / m 3 , 28d compressive strength of 28-60MPa has a good slump / expansion suitable for pumping pouring, and has a good shielding effect on gamma rays and neutron rays.

Embodiment 3

[0042] A barite anti-radiation pumping concrete, the proportion of the concrete raw materials by weight is: 400 parts of cement, 140 parts of water, 100 parts of barite powder, 1155 parts of barite sand, 1988 parts of barite, synergistic 2.4 parts of agent, 14.6 parts of polycarboxylate additive. The available slump / expansion is 210mm / 495mm, and the apparent density is 3752kg / m 3 , 28d C50 grade radiation-resistant pumped concrete with a compressive strength of 59.7MPa.

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Abstract

The invention discloses a barite anti-radiation pumping concrete. The mixing ratio of the concrete according to the weight part is: cement: water: barite powder: barite sand: barite: synergist: admixture = [340 ~450]: [110~170]: [75~150]: [1000~1400]: [1800~2000]: [2~4]: [7~19]. Through the selection of raw materials and the design of the ratio, a radiation-resistant concrete with high density and good fluidity that can be used for pumping is obtained.

Description

technical field [0001] The invention belongs to the technical field of concrete preparation and relates to a barite anti-radiation pumping concrete. Background technique [0002] Radiation-resistant concrete not only needs to meet the structural strength, but also needs to be heavy, contain more bound water, and have better homogeneity than ordinary concrete. No voids or cracks are allowed in the shrinkage of concrete during construction and service life. In the construction of the linear accelerator room, if the shielding body material is traditional heavy metal materials such as lead plates, it is not only expensive, but also has a complicated structure. [0003] In order to prevent the leakage of nuclear radiation from causing harm to the human body, a special radiation-resistant material is needed, and concrete with barite as the coarse and fine aggregate is one of them. In addition to absorbing X-rays and γ-rays, anti-radiation concrete must also have the ability to we...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04C04B14/36
Inventor 刘登贤陈东吴鑫
Owner SICHUAN HUASHI GREEN HOMELAND BUILDING MATERIALS
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