Three-row hole recycled concrete load-bearing energy-saving composite thermal insulation block and preparation method thereof

A technology of recycled concrete and thermal insulation blocks, which is applied in the manufacture of tools, building materials, ceramic molding machines, etc., and can solve the problems of insufficient utilization of renewable resources, high porosity of single-row hole blocks, and low utilization rate of recycled aggregates. , to achieve the effect of increasing the heat conduction path, good heat preservation effect and high compressive strength

Inactive Publication Date: 2011-12-14
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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Problems solved by technology

According to the document [9] "Code for Seismic Design of Buildings" GB5001-2001, article 3.9.2 stipulates that if used in an earthquake-resistant structure, the minimum strength of the block is MU7.5, so the above-mentioned single-row hole recycled concrete block has a certain limitation
Moreover, if the strength grade of the single

Method used

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  • Three-row hole recycled concrete load-bearing energy-saving composite thermal insulation block and preparation method thereof
  • Three-row hole recycled concrete load-bearing energy-saving composite thermal insulation block and preparation method thereof
  • Three-row hole recycled concrete load-bearing energy-saving composite thermal insulation block and preparation method thereof

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[0018] The three-row hole recycled concrete load-bearing thermal insulation block of the present invention is composed of a wall 1 and a rib 3. The gap between the wall 1 and the rib 2 is a hole 3, and each hole 3 runs through up and down and keeps aligned up and down. There are three holes on the block. Row of holes, each of the holes 3 is filled with insulation boards, and ash slots 4 are arranged on the front and rear sides of the block. Design mortar slot 4 is to make mortar easy to fill in the process of building by laying bricks or stones. The block is made of raw materials in the following weight ratio: cement: water: recycled fine aggregate: recycled coarse aggregate =375:150:664:811.

[0019] According to the influence of block pass design on block load-bearing and the influence principle of block heat conduction path on heat preservation effect, the applicant has determined the pass and specification of the three-row hole recycled concrete block of the present invent...

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Abstract

The invention discloses a recycled concrete load-bearing thermal insulation block with three rows of holes, which is characterized in that the block is composed of walls and ribs, and the gaps between the walls and ribs are holes. The holes are filled with insulation boards. Crush construction waste into recycled aggregate, and make recycled fine aggregate and recycled coarse aggregate; weigh cement, water, recycled fine aggregate and recycled coarse aggregate according to the formula, and mix cement: water: recycled fine aggregate : Regenerated coarse aggregate = 375: 150: 664: 811 weight ratio mixing, mixing evenly, through the block forming machine to make a three-row hole recycled concrete load-bearing block with a compression ratio of 0.86; fill the insulation board to the three-row hole regeneration In each hole of the concrete load-bearing block, it is verified by experiments that the block of the present invention has higher compressive strength, has increased heat conduction paths and heat preservation materials, and has better heat preservation effect.

Description

technical field [0001] The invention relates to the field of recycling of construction waste, and relates to an energy-saving and heat-insulating block and its preparation, in particular to a three-row hole recycled concrete load-bearing energy-saving composite heat-insulating block and its preparation method. Background technique [0002] At present, countries all over the world are actively carrying out exploration and research on the recycling of construction waste. Developed countries and regions such as the United States, Japan and Europe have carried out research on the recycling and utilization of construction waste, especially waste concrete, etc., and the recycling rate of waste concrete in these countries is above 90%. my country's construction waste resource regeneration and recycling pace is slow, and the comprehensive utilization rate is still less than 5%, and domestic recycled concrete technology is mainly used in some non-load-bearing secondary structures. In...

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Application Information

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IPC IPC(8): E04C1/41B28B1/00
Inventor 白国良张锋剑刘超李晓文朱丽华
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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