Crack-resistant anti-radiation mass concrete based on waste glass and preparation method thereof

A waste glass and large-volume technology, which is applied in the field of construction engineering, can solve the problems of poor shielding effect of gamma rays and poor durability of concrete, and achieve the effects of radiation protection performance, increased difficulty of water movement, and reduced shrinkage

Active Publication Date: 2018-09-04
CHINA STATE CONSTR READY MIXED CONCRETE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Only natural ores with high apparent density, such as barite, are selected as the coarse and fine aggregates of concrete. There is a potential risk of cracks for super-large-volume concrete that requires temperature rise control, and at the same time, the shielding effect of gamma rays is not good, etc. Problem, prior art has lead glass as mass concrete aggregate, but this has the risk of alkali-aggregate reaction, which puts mass concrete at risk of poor durability

Method used

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  • Crack-resistant anti-radiation mass concrete based on waste glass and preparation method thereof
  • Crack-resistant anti-radiation mass concrete based on waste glass and preparation method thereof
  • Crack-resistant anti-radiation mass concrete based on waste glass and preparation method thereof

Examples

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Effect test

Embodiment 1

[0034] A large-volume anti-crack and anti-radiation concrete based on waste glass. The components and their contents are shown in Table 1; the coarse aggregate is composed of lead glass aggregate and barite in a mass ratio of 1:2, which is 5-31.5 mm continuous gradation; the fine aggregate is composed of borosilicate glass sand and barite sand in a mass ratio of 1:5, and the fineness modulus of the fine aggregate is 2.5 to 3.0; the mineral admixture is composed of glass powder and powder Coal ash is composed by the mass ratio of 1:4, and the mass ratio of methyl cellulose ether, lithium carbonate, gypsum, slaked lime in the composite modifier is 1:0.5:2:2; The preparation method includes the following steps: mixing the weighed cement, glass powder, fly ash, fine aggregate, coarse aggregate, composite modifier and fiber for 45 seconds to obtain a premixed material; , fiber and water are added to the obtained premixed material according to the stated ratio, and stirred for 150 s...

Embodiment 2

[0038] A large-volume anti-crack and anti-radiation concrete based on waste glass. The components and their contents are shown in Table 2; the coarse aggregate is composed of lead glass aggregate and barite in a mass ratio of 1:3, which is 5 to 31.5 mm continuous gradation; the fine aggregate is composed of borosilicate glass sand and barite sand in a mass ratio of 1:4, and the fineness modulus of the fine aggregate is 2.5 to 3.0; the mineral admixture is composed of glass powder and powder Coal ash is formed by the mass ratio of 1:3, and the mass ratio of methyl cellulose ether, lithium carbonate, gypsum, slaked lime in the composite modifier is 1:0.6:3:2; The preparation method includes the following steps: mixing the weighed cement, glass powder, fly ash, fine aggregate, coarse aggregate, composite modifier and fiber for 45 seconds to obtain a premixed material; , fiber and water are added to the obtained premixed material according to the stated ratio, and stirred for 150 ...

Embodiment 3

[0042] A large-volume anti-crack and anti-radiation concrete based on waste glass. The components and their contents are shown in Table 3; the coarse aggregate is composed of lead glass aggregate and barite in a mass ratio of 1:3, which is 5 to 31.5 mm continuous gradation; the fine aggregate is composed of borosilicate glass sand and barite sand in a mass ratio of 1:3, and the fineness modulus of the fine aggregate is 2.5 to 3.0; the mineral admixture is composed of glass powder and powder Coal ash is formed by the mass ratio of 1:1, and the mass ratio of methyl cellulose ether, lithium carbonate, gypsum, slaked lime in the composite modifier is 1:0.5:5:5; The preparation method includes the following steps: mix the weighed cement, glass powder, fly ash, fine aggregate, coarse aggregate, composite modifier and fiber for 60 seconds to obtain a premixed material; then mix the water reducer , fiber and water are added to the obtained premixed material according to the stated rat...

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Abstract

The invention discloses crack-resistant anti-radiation mass concrete based on waste glass. The mass concrete comprises the following components: 140-160kg/m<3> of water, 100-300kg/m<3> of cement, 30-100kg/m<3> of a glass powder, 50-180kg/m<3> of fly ash, 800-1100kg/m<3> of fine aggregates, 1400-2000kg/m<3> of coarse aggregates, 0.35-1.9 kg/m<3> of a composite modifier, 2.1-7.8kg/m<3> of a water reducing agent and 0.6-1.2kg/m<3> of fibers, wherein the coarse aggregate is prepared by mixing barite and lead glass; the fine aggregate is prepared by mixing borosilicate glass sand and barite sand. The prepared crack-resistant anti-radiation mass concrete is excellent in working performance, mechanical property, cracking resistance, durability and shielding effects; moreover, the waste glass containing lead, boron and the like can be efficiently recycled, and the crack-resistant anti-radiation mass concrete has obvious economic and environmental benefits.

Description

technical field [0001] The invention belongs to the field of construction engineering, and in particular relates to a large-volume anti-crack and anti-radiation concrete based on waste glass and a preparation method thereof. Background technique [0002] Waste glass is an important part of urban solid waste, and waste glass accounts for about 6-11% of the total solid waste in my country. Industrial waste glass can be used for glass reproduction, but daily waste glass is mostly disposed of in landfill due to the impact on product quality during reproduction. The proportion of lead oxide in CRT glass exceeds 20%. Landfilling lead-containing materials can contaminate soil and water sources. The heat-resistant cooker, electric vacuum glass, and waste glass of optical glass are borosilicate glass, which are also in urgent need of high value-added utilization. However, due to its stable chemical properties, waste glass cannot be decomposed by microorganisms. Landfill treatment ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04
CPCC04B28/04C04B2111/00258C04B2201/20C04B2201/50C04B14/22C04B18/08C04B22/142C04B24/383C04B22/10C04B22/143C04B22/064C04B16/0633C04B2103/302
Inventor 包明吴雄王军杨文赵日煦
Owner CHINA STATE CONSTR READY MIXED CONCRETE CO LTD
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