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A kind of concrete with waste glass as main raw material and its preparation method

A technology of main raw material and waste glass, applied in the field of concrete, can solve the problems of unsatisfactory performance of concrete, inability to effectively improve the recycling rate of waste glass, etc., and achieve the effect of saving natural raw materials, excellent fluidity, and meeting strength requirements

Active Publication Date: 2015-08-05
北京元泰达环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The patent document with the publication number CN102745929A mentions that ground glass powder is used as an admixture for the production of concrete, which can replace 30-50% of cement, and the recycling rate of waste glass has been improved to a certain extent, but the obtained concrete Performance is still not ideal
The patent document with publication number CN103172323A mentions a kind of active powder concrete mixed with ultra-fine ordinary glass powder, but the amount of glass powder mixed in the concrete is very small, which cannot effectively improve the reutilization rate of waste glass, and the patent document The reactive powder concrete obtained in this method also needs to be improved in terms of fluidity and other properties.

Method used

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  • A kind of concrete with waste glass as main raw material and its preparation method
  • A kind of concrete with waste glass as main raw material and its preparation method
  • A kind of concrete with waste glass as main raw material and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] A kind of C30 waste glass concrete, the preparation steps are as follows:

[0051] A. Transport the waste glass to the hopper of the distributor.

[0052] B. Use a sieve distributor for primary iron removal, screening, and distribution.

[0053] C. During the conveying process of coarse glass, large-volume impurities are manually removed.

[0054] D. Use a waste glass crusher to break the screened fine powder, medium glass and coarse glass after manual sorting and removal of impurities.

[0055] E. Use a specific gravity sieve to screen the broken glass frit to remove light impurities.

[0056] F. Use a waste glass impurity sorter to remove metal impurities and ceramic opaque impurities in the glass frit.

[0057] G. Use a waste glass variegated sorter to separate the glass frit by color.

[0058] H. Use a vibrating mill to separate the brown, white and other glass frits separated by color and grind them into glass powder for use. The particle size of the glass powd...

Embodiment 2

[0067] A kind of concrete with waste glass as the main raw material is prepared according to the method of Example 1, except that steps J and K are as follows:

[0068] J. Ingredients and pre-mixing: Mix the prepared glass micropowder with glass fine aggregate, stones, cement, and silica fume according to the following proportions and add them to the mixer for pre-mixing for 30 seconds:

[0069] The total mass of the total adhesive (cement + glass powder + silica fume), glass fine aggregate, and stones (with a particle size of 5-16mm) is calculated as 100%, the total adhesive is 10wt%, the glass fine aggregate is 40wt%, and the stone is 50wt% .

[0070] The total mass of the total glue material (cement + glass powder + silica fume) is based on 100%, cement 70wt%, glass powder 20wt%, silica fume 10wt%.

[0071] K Stirring: Add the weighed admixture (1.2wt% of the total adhesive mass) and water (water-cement ratio 0.41) into the pre-mixed material and stir for 120s.

[0072] T...

Embodiment 3

[0075] A kind of concrete with waste glass as the main raw material is prepared according to the method of Example 1, except that steps J and K are as follows:

[0076] J. Ingredients and pre-mixing: Mix the prepared glass micropowder with glass fine aggregate, stones, cement, and silica fume according to the following proportions and add them to the mixer for pre-mixing for 30 seconds:

[0077] The total mass of the total glue (cement + glass powder + silica fume), glass fine aggregate, and stones (with a particle size of 5-16mm) is calculated as 100%, the total glue is 25wt%, the glass fine aggregate is 33wt%, and the stone is 42wt% .

[0078] The total mass of the total glue material (cement + glass powder + silica fume) is based on 100%, cement 78wt%, glass powder 17wt%, silica fume 5wt%.

[0079] K Stirring: Add the weighed admixture (2.0wt% of the total rubber mass) and water (water-cement ratio 0.35) into the pre-mixed material and stir for 120s.

[0080] The obtained...

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Abstract

The invention discloses concrete mainly prepared from waste glass. The concrete is prepared from the following components in parts by weight: 10-30 parts of gel material, 30-40 parts of fine aggregate, 40-50 parts of coarse aggregate, 0.05-0.45 part of admixture and 3.8-16.5 parts of water, wherein the gel material comprises the following components in percentage by weight: 70-85wt% of cement, 10-20wt% of waste glass micropowder with the particle size being less than or equal to 30 micrometers and 5-10w% of silica dust; the fine aggregate is zone-II medium sand grading class waste glass powder, and the coarse aggregate is stones with the particle size being 5-16mm. The waste glass is utilized in the concrete to the maximum degree, and the cement has excellent compressive strength and mobility. The invention also provides a concrete preparation method.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a concrete, in particular to a concrete with construction waste as the main raw material, and a preparation method thereof. Background technique [0002] With the continuous acceleration of my country's urbanization process, the resulting construction waste problem has attracted more and more attention. Waste glass is an important part of construction waste. Since waste glass is a non-biodegradable material, how to effectively recycle them has become an urgent problem to be solved. [0003] In the glass manufacturing industry, the reuse of waste glass can reduce the energy consumption of production and the energy consumption of water and raw materials. However, due to the complex composition of waste glass, the requirements for the removal of impurities and color separation of waste glass before reuse are extremely high. The applications for producing new glass are extremely li...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04C04B14/22
Inventor 李荣江李建勇尚百雨马雪英程东惠
Owner 北京元泰达环保科技有限公司
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