Green recycled building material

A renewable building material, green technology, applied in the direction of climate sustainability, sustainable waste treatment, solid waste management, etc., can solve the problems of destroying ecological balance and natural landscape, depletion, environmental hazards, etc., and achieve significant economic benefits and social benefits Benefits, reducing environmental pollution problems, and reducing the effect of stacking land occupation

Inactive Publication Date: 2012-05-30
周立志
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AI Technical Summary

Problems solved by technology

[0002] At present, the waste concrete discharged from the demolition of buildings is the largest waste in the construction industry. The discharge of waste concrete is increasing every year, causing serious environmental problems and causin

Method used

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Embodiment Construction

[0009] The green recycled building material of the present invention is realized in this way, which will be described in detail below. The method of producing green recycled building materials, the construction waste after the building is demolished, and the regenerated sand in the state of fine sand is mechanically crushed, and its technical index: bulk density 1180kg / m 3 , mud content 5.0%, mud block content 1.5%, water absorption (natural water content) 7%; use recycled sand to prepare concrete and mortar, add: triethanol 15%, ferric oxide 25%, fly ash 60 % composition of additives, recycled sand: additive = 95:5, so that the performance of the concrete mixture can reach: strength grade: C20, water-cement ratio: 0.60-0.62, slump cm: 5.0.

[0010] The method for producing green recycled building materials provided by the present invention uses green recycled building materials to prepare concrete and mortar in the test, and the mix ratio design is designed and prepared accor...

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Abstract

The present invention relates to a green recycled building material. The material is characterized in that: the method for producing the green recycled building material comprises the following steps: 1, carrying out mechanical crushing on building wastes from building demolition to obtain recycled sand with a fine sand state; 2, adopting the recycled sand to prepare concrete and mortar, and adding an additive, such that the performances of the concrete mixture meet the following requirements, wherein a ratio of the recycled sand to the additive is 97:3, and the requirements comprise that: the strength grade is C20, the water cement ratio is 0.60-0.62, and the collapsing degree (cm) is 5.0. With the green recycled building material of the present invention, the environmental pollution due to the discharged wastes during the building demolition process is effectively solved, the shortage problem of the natural sand source is solved, and the problems of area occupying due to urban waste stacking, and environmental pollution are reduced. The experiment results show that: performances of compressive strengths, mechanical properties, freezing resistance, carbonization properties and the like of the masonry mortar and the concrete reach or exceed the design standards, wherein masonry mortar and the concrete are prepared by using the recycled sand. In addition, significant economic benefits and significant social benefits are provided.

Description

technical field [0001] The invention relates to a green recycled building material produced by using waste discharged from demolished buildings. Background technique [0002] At present, the waste concrete discharged from the demolition of buildings is the largest waste in the construction industry. The discharge of waste concrete is increasing every year, causing serious environmental problems and causing secondary pollution to the environment. However, sand and gravel aggregates, which are the most used in the production of concrete in the construction industry, have been exhausted and in short supply in a few areas. and natural landscape. Contents of the invention [0003] The present invention overcomes the above existing defects, and aims to provide a green recycled building material for solving the waste discharged from the demolished buildings. [0004] Brief description of the content of the green recycled building material of the present invention: [0005] The...

Claims

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Application Information

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IPC IPC(8): C04B18/16
CPCY02W30/91
Inventor 周立志
Owner 周立志
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