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Construction waste-containing high-strength light-weight composite PC (polycarbonate) mortar board for prefabricated building

A technology for construction waste and construction, applied in construction, building components, building structures, etc., can solve the problems of high weight and large amount of materials, and achieve the effects of improving mechanical strength, reducing energy consumption, and reducing quality

Inactive Publication Date: 2017-06-20
SHAOXING YISHENG MORTAR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the traditional reinforced concrete and brick masonry structures have the problem of high weight, and the amount of materials used is large, which will inevitably bring many disadvantages to design, construction, transportation and cost. Therefore, it is particularly important to prepare lightweight and high-strength mortar boards.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) Collect the concrete and brick slag in the construction waste, hammer and vibrate it into particles with a particle size of 5-10cm, dry at 90°C until the moisture content of the particles is 3%, and the mass ratio is 1:0.05 Add natural sand, ultrasonic treatment, and then grind to obtain recycled building aggregate, which contains 10-20 mesh particles and 40-70 mesh particles, and the mass ratio of 10-20 mesh particles to 40-70 mesh particles is The ratio is 1:1, and the bulk density is 1300kg / m3.

[0030] (2) Part of the recycled building aggregate is rotated at a high speed with a linear velocity ≥ 80m / s, impact and friction between the recycled building aggregate, and collected under the action of the induced draft fan to obtain recycled micropowder. The particle size of the recycled micropowder is 150-200 mesh, the bulk density is 800kg / m3, and the density is 2300kg / m3.

[0031] (3) In parts by weight, 30 parts of recycled building aggregate, 10 parts of recycl...

Embodiment 2

[0035] (1) Collect the concrete and brick slag in the construction waste, hammer and vibrate and pulverize to particles with a particle size of 5-10cm, and dry at 100°C until the moisture content of the particles is 5%, according to the mass ratio of 1:0.1 Add natural sand, ultrasonic treatment, and then grind to obtain recycled building aggregate, which contains 10-20 mesh particles and 40-70 mesh particles, and the mass ratio of 10-20 mesh particles to 40-70 mesh particles is It is 1:1, and the bulk density is 1350kg / m3.

[0036] (2) Part of the recycled building aggregate is rotated at a high speed with a linear velocity ≥ 80m / s, impact and friction between the recycled building aggregate, and collected under the action of the induced draft fan to obtain recycled micropowder. The particle size of the recycled micropowder is 150-200 mesh, the bulk density is 820kg / m3, and the density is 2350kg / m3.

[0037] (3) In parts by weight, 40 parts of recycled building aggregate, 15 ...

Embodiment 3

[0041] (1) Collect the concrete and brick slag in the construction waste, hammer and vibrate it into particles with a particle size of 5-10cm, dry at 95°C until the moisture content of the particles is 4%, and the mass ratio is 1:0.08 Add natural sand, ultrasonic treatment, and then grind to obtain recycled building aggregate, which contains 10-20 mesh particles and 40-70 mesh particles, and the mass ratio of 10-20 mesh particles to 40-70 mesh particles is It is 1:1, and the bulk density is 1387kg / m3.

[0042] (2) Part of the recycled building aggregate is rotated at a high speed with a linear velocity ≥ 80m / s, impact and friction between the recycled building aggregate, and collected under the action of the induced draft fan to obtain recycled micropowder. The particle size of the recycled micropowder is 150-200 mesh, the bulk density is 812kg / m3, and the density is 2323kg / m3.

[0043] (3) In parts by weight, 35 parts of recycled building aggregate, 13 parts of recycled micr...

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Abstract

The invention provides a construction waste-containing high-strength light-weight composite PC (polycarbonate) mortar board for a prefabricated building. The mortar board comprises an inner PC board layer, an outer PC board layer and a filling material layer arranged between the inner PC board layer and the outer PC board layer. A preparation method of the mortar board comprises the following steps of performing hammering, vibrating, crushing, grinding and other processes on concrete and brick slag in construction wastes to form a regenerated building aggregate; performing high-speed rotation on the regenerated building aggregate to obtain regenerated micro powder, and collecting the regenerated micro powder; mixing the regenerated building aggregate, the regenerated micro powder, a polymer, cement, rice hulls and straws, basalt fibers and glass fibers, ceramsite and other auxiliaries to obtain the PC board layers; mixing polystyrene foam, asbestos foam or nano-sized aerogel with the polymer to obtain the filling material layer; and finally, compounding the PC board layers and the filling material layer to obtain the construction waste-containing high-strength light-weight composite PC mortar board for the prefabricated building. The preparation method is simple; and as regenerated building agricultural wastes are taken as a large part of raw materials, on the basis of guaranteeing high strength and light weight, the cost is reduced, and the mortar board is green and environment friendly.

Description

technical field [0001] The invention belongs to the field of building materials, and in particular relates to a high-strength and light-weight composite PC mortar board for an assembled building containing construction waste. Background technique [0002] With the progress and development of history, buildings have a greater impact on people's work and life, so the requirements for building materials are getting higher and higher, but the satisfaction of this requirement lies in the interdependence and contradiction of energy. In recent years, with the vigorous development of my country's construction industry, under the requirements of accelerating construction speed, reducing construction cost, ensuring construction quality, and improving building energy efficiency, the building is gradually moving towards the prefabricated building system. [0003] Prefabricated buildings are green, environmentally friendly, low-carbon, and energy-saving buildings. my country adheres to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04E04C2/288B32B27/08B32B27/20B32B27/36B32B33/00B32B37/15
CPCB32B27/08B32B27/20B32B27/36B32B27/365B32B33/00B32B37/15B32B2307/102B32B2307/304B32B2307/3065B32B2307/558B32B2307/7145B32B2307/718C04B28/04E04C2/288C04B24/2641C04B18/16C04B18/24C04B14/46C04B14/42C04B18/027C04B2103/302C04B18/146C04B2103/50C04B22/143C04B24/24C04B24/383
Inventor 方伟烽陈建国祝张法阮建根余航斌王荣东
Owner SHAOXING YISHENG MORTAR
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