Unlock instant, AI-driven research and patent intelligence for your innovation.

A large-volume anti-crack and anti-radiation concrete based on waste glass and its preparation method

A waste glass, large-volume technology, applied in the field of construction engineering, can solve problems such as poor durability of concrete and poor γ-ray shielding effect, and achieve significant economic and environmental benefits and excellent work performance.

Active Publication Date: 2021-05-18
CHINA STATE CONSTR READY MIXED CONCRETE CO LTD
View PDF1 Cites 0 Cited by
  • Summary
  • 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A large-volume anti-crack and anti-radiation concrete based on waste glass and its preparation method
  • A large-volume anti-crack and anti-radiation concrete based on waste glass and its preparation method
  • A large-volume anti-crack and anti-radiation concrete based on waste glass and its preparation method

Examples

Experimental program
Comparison scheme
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...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
densityaaaaaaaaaa
densityaaaaaaaaaa
densityaaaaaaaaaa
Login to View More

Abstract

The invention discloses a large-volume anti-crack and anti-radiation concrete based on waste glass. The components and their contents include: water 140-160kg / m 3 ; Cement 100‑300kg / m 3 ;Glass powder 30‑100kg / m 3 ; Fly ash 50‑180kg / m 3 ;Fine aggregate 800‑1100kg / m 3 ;coarse aggregate 1400‑2000kg / m 3 ; Composite modifier 0.35‑1.9kg / m 3 ; Water reducer 2.1‑7.8kg / m 3 , fiber 0.6‑1.2kg / m 3 ; The coarse aggregate is made by mixing barite and lead glass, and the fine aggregate is made by mixing borosilicate glass sand and barite sand. The obtained large-volume anti-crack and anti-radiation concrete has excellent working properties, mechanical properties, anti-crack properties, durability and shielding effect; it can also efficiently utilize waste glass containing lead and boron as resources, and has significant 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(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