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Anti-radiation and anti-crack concrete

A concrete and anti-radiation technology, applied in the field of concrete, can solve problems such as difficulty in preventing radiation, difficult construction, and easy cracking

Pending Publication Date: 2021-05-04
山东阳华建筑安装工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Ordinary concrete is difficult to play a good role in radiation protection, and the strength of ordinary concrete is low, easy to crack, and it is difficult to construct.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] This embodiment provides a radiation-proof and crack-resistant concrete, which includes the following raw materials: 150kg of cement, 45kg of mineral admixture, 1300kg of magnetite placer, 1700kg of magnetite ore, 20kg of anti-cracking agent, 5kg of water reducing agent and 120kg of water , wherein, the above-mentioned cement is Portland cement, the above-mentioned mineral admixture is a mixture of fly ash above the national standard II level and concrete slag above the S95 level in a ratio of 1:1, and the above-mentioned magnetite placer and the above-mentioned magnetite ore The effective content of iron element is 70%, and the apparent density in the dry state is 4700kg / m 3 , the fineness modulus of the above-mentioned magnetite placer is 3, the particle size of the above-mentioned magnetite ore is 20mm, and the content of needle flake ore is 10%.

[0037] The above-mentioned anti-cracking agent includes 2% of corn starch dextrin cement hydration control material, 30%...

Embodiment 2

[0039] This embodiment provides a kind of anti-radiation and anti-crack concrete, which includes the following raw material components: 450kg of cement, 200kg of mineral admixture, 1600kg of magnetite placer, 2100kg of magnetite ore, 50kg of anti-cracking agent, 15kg of water reducing agent and 220kg of water , wherein, the above-mentioned cement is 42.5 grade ordinary Portland cement, the above-mentioned mineral admixture is made by mixing the fly ash above the national standard II grade and the concrete slag above the S95 grade in a ratio of 1:2, and the above-mentioned magnetite placer and The effective iron content of the above-mentioned magnetite ore is 75%, and the apparent density in the dry state is 4800kg / m 3 , the fineness modulus of the above-mentioned magnetite placer is 2.3, the particle size of the above-mentioned magnetite ore is 5mm, and the content of needle flake ore is 8%.

[0040] The above-mentioned anti-cracking agent includes 4% of corn starch dextrin ce...

Embodiment 3

[0042] This embodiment provides a kind of anti-radiation and anti-crack concrete, which includes the following raw materials: 200 kg of cement, 50 kg of mineral admixture, 1400 kg of magnetite placer, 1800 kg of magnetite ore, 25 kg of anti-cracking agent, 6 kg of water reducing agent and 150 kg of water , wherein, the above-mentioned cement is 52.5 grade ordinary Portland cement, the above-mentioned mineral admixture is a mixture of fly ash above national standard II and above concrete slag in a ratio of 2:1, and the above-mentioned magnetite placer and The effective iron content of the above-mentioned magnetite ore is 80%, and the apparent density in the dry state 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%.

[0043] The anti-cracking agent includes 4% of corn starch dextrin cement hydration control material, 30% of light-burned c...

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Abstract

The invention provides anti-radiation and anti-crack concrete, and relates to the technical field of concrete. The anti-radiation and anti-crack concrete comprises the following raw materials: cement, a mineral admixture, magnetite sand ore, magnetite ore, an anti-crack agent, a water reducing agent and water. The anti-radiation and anti-crack concrete is capable of effectively shielding rays, good in anti-radiation effect, high in concrete strength, not easy to crack, easy to construct, economical and environment-friendly.

Description

technical field [0001] The invention relates to the technical field of concrete, in particular to a radiation-proof and crack-resistant concrete. 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 ordinary concrete is low in strength, easy to crack, and difficult to construct. Contents of the invention [0003] The object of the present invention is to provide a radiation-proof and crack-resistant concrete, which can effectively shield radiation, has good radiation protection effec...

Claims

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Application Information

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IPC IPC(8): C04B28/04
CPCC04B28/04C04B2201/50C04B18/08C04B18/141C04B18/12C04B22/064C04B22/066C04B22/143C04B24/38C04B2103/302
Inventor 吴传英
Owner 山东阳华建筑安装工程有限公司
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