Wear-resistant, antiknock and radiation-resistant concrete and preparation method thereof

A concrete and radiation protection technology, applied in the field of concrete, can solve the problems of burst damage, undeveloped ultra-high-strength concrete research, thermal cracking of materials, etc.

Inactive Publication Date: 2016-07-27
CHINA BUILDING MATERIALS ACAD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The high-strength and high-performance concrete with dense structure will cause thermal cracking of the material and explosive damage due to temperature gradient, internal and external constraints, thermal expansion mismatch between cement paste and aggregate, and temperature sensitivity under fire or high temperature. insurmountable
Although the existing technology adopts various methods to enhance the wear resistance or anti-knock performance, the

Method used

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  • Wear-resistant, antiknock and radiation-resistant concrete and preparation method thereof
  • Wear-resistant, antiknock and radiation-resistant concrete and preparation method thereof
  • Wear-resistant, antiknock and radiation-resistant concrete and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 2

[0038] Wear-resistant, anti-explosion, anti-radiation concrete, the specific components and proportions are as follows: Ordinary Portland cement (specific surface area 385m 2 / kg, apparent density 3.14g / cm 3 )796kg / m 3 , high-strength admixture (active SiO 2 Mass ratio is 73%, CaO mass ratio is 10%, SO 3 The mass ratio is 14%, Al 2 o 3 Mass ratio is 1.6%) 281kg / m 3 , fine aggregate river sand (apparent density 2.72g / cm 3 )697kg / m 3 , functional aggregate serpentine (fineness modulus 2.5, mud content 0.4%) 677kg / m 3 , 32.8kg / m of polycarboxylate high-performance superplasticizer with a solid content of 25% 3 , polymer defoamer 4.3kg / m 3 , calcium sulfoaluminate CSA expansion agent is 35kg / m 3 , carbon fiber (tensile strength up to 5500MPa, aspect ratio 66, density 1.8g / cm 3 ) volume content 2.5%, organic fiber (polypropylene fiber, density 0.90g / cm 3 , aspect ratio 655) volumetric dosage 0.5%, water 179kg / m 3 .

[0039] The preparation method is the same as in Exam...

Embodiment 3

[0050] Wear-resistant, anti-explosion, anti-radiation concrete, the specific components and proportions are as follows: Portland cement (specific surface area 428m 2 / kg, apparent density 3.14g / cm 3 )1014kg / m 3 , high-strength admixture (active SiO 2 The mass ratio accounts for 61%, CaO accounts for 15%, SO 3 17%, Al 2 o 3 accounted for 1.3%) 161kg / m 3 , copper slag fine aggregate (apparent density 3.06g / cm 3 )811kg / m 3 , functional aggregate hematite (fineness modulus 2.4, mud content 0.8%) 271kg / m 3 , sulfamate high-efficiency superplasticizer with a solid content of 20% 58.2kg / m 3 , silicone defoamer 10.5kg / m 3 , calcium sulfoaluminate CSA expansion agent is 53kg / m 3 , steel fiber (steel fiber, tensile strength up to 3200MPa, aspect ratio 87, density 7.6g / cm 3 ) volume content 1.5%, organic fiber (polypropylene fiber, density 0.88g / cm 3 , aspect ratio 686) volumetric dosage 0.2%, water 208kg / m 3 .

[0051] The preparation method is the same as in Example 1.

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Abstract

The invention discloses wear-resistant, antiknock and radiation-resistant concrete and a preparation method thereof. Each cubic meter of the concrete comprises 600-1600kg of cement, 400-1400kg of fine aggregate, 30-560kg of a high-strength admixture, 250-1800kg of functional aggregate, 3-500kg of high tensile strength fibers, 0.4-45kg of organic fibers, 0.6-43.2kg of a water reducer (based on solid content), 0.06-43kg of an antifoaming agent, 6-129kg of an expanding agent and 100-430kg of water. The wear-resistant, antiknock and radiation-resistant concrete has high wear resistance, instant high temperature explosion resistance, high knock resistance, high toughness and radiation resistance.

Description

technical field [0001] The invention relates to the technical field of concrete, in particular to a wear-resistant, explosion-resistant and radiation-proof concrete and a preparation method thereof. Background technique [0002] Ground-penetrating projectiles play a decisive role in wars, relying on their ultra-high rate of fire and rapid rotation to drill into the concrete layer and explode to destroy concrete buildings and release a large amount of radioactive fallout. This makes the military defense facilities for defense against such penetrating weapons such as ground penetrating bombs need to have wear resistance, high temperature burst resistance, explosion resistance, high toughness, and radiation protection functions simultaneously, and defense facilities with these properties have not been studied so far. Secondly, this kind of multifunctional concrete also has a considerable market in daily life. Roads, various machine workshops, parking lots, warehouses, etc. have...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B28/00C04B14/38C04B14/48C04B16/06
Inventor 林志翔孙蓓桂志伟
Owner CHINA BUILDING MATERIALS ACAD
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