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Process for casting flower-stand from construction waste

A technology for construction waste and flower beds, applied in solid waste management, sustainable waste treatment, climate sustainability, etc., can solve the problems of untimely disposal and utilization of construction waste, achieve excellent water retention effect, save labor input costs, save The effect of breaking time

Inactive Publication Date: 2014-12-10
TAIZHOU TONGDA CONSTR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to solve the problem of adverse effects caused by the untimely treatment and utilization of existing construction waste, and to provide a process for casting flower beds with high effective utilization rate, timely recycling and low processing cost of construction waste

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The process of using construction waste for planter casting consists of the following steps,

[0031] (1) Screening treatment: Use screening equipment to screen sand particles with a fineness modulus less than 3.7 from construction waste.

[0032] (2) Selection and separation: use magnetic separation to select iron products from the remaining construction waste; then put the selected construction waste into salt water, and use the buoyancy of the salt water to select wood and plastic from the construction waste , and finally select other metal products from construction waste by manual methods.

[0033] Among them, the selected metal products can be sorted, recycled and recast, such as aluminum alloy, copper, color steel, iron products, stainless steel, etc. After being screened out in this step, they are transported to the garbage recycling station, where they are recycled and reused . And the plastic products in this step are also transported to the recycling statio...

Embodiment 2

[0041] The difference between this embodiment and embodiment 1 is that the components of the cement mortar in step (5) are different, and the specific weight percentages of each component are as follows:

[0042] 43wt% sand, 20wt% calcium aluminate cement, 5wt% polyacrylamide, 23wt% fly ash, 5wt% redispersible latex powder, 4wt% aluminum sulfate; wherein, the redispersible The latex powder is terpolymerized rubber powder of ethylene, vinyl chloride and vinyl lauricate.

Embodiment 3

[0044] The difference between this embodiment and embodiment 1 is that the components of the cement mortar in step (5) are different, and the specific weight percentages of each component are as follows:

[0045] 50wt% sand, 16wt% calcium aluminate cement, 6wt% polyacrylamide, 20wt% fly ash, 6wt% redispersible latex powder, 2wt% aluminum sulfate; wherein, the redispersible Latex powder is ternary copolymerized rubber powder of vinyl acetate, ethylene and higher fatty acid vinyl ester.

[0046] It is known through testing that under the same conditions as other conditions, the compressive strength of the flower table prepared by the method of the present invention after 30 days reaches 11-13Mpa, and the existing stone is used as the finished product particle and mixed with ordinary cement mortar to make a mixed slurry The flower bed formed by pouring has a compressive strength of only 7-10Mpa, and the flower bed made of existing stones as finished particles mixed with ordinary ...

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Abstract

The invention discloses a process for casting a flower-stand from construction waste. The process comprises the following steps: (1) screening; (2) selecting and separating; (3) crushing the residual construction waste after being selected into semi-finished product particles of which the particle sizes are 40mm to 100mm; (4) after processing the semi-finished product particles in the steps (1) and (2), grinding under the condition that the pressure intensity is 6Mpa, and screening out sand of which the fineness modulus is smaller than 3.7 through screening equipment, so as to form finished product particles; (5) mixing 35-50wt% of sand, 15-20wt% of calcium aluminate cement, 4-8wt% of polyacrylamide, 20-25wt% of coal ash, 4-8wt% of redispersible latex powder and 2-5wt% of aluminum sulfate to prepare cement mortar; and (6) constructing a flower-stand base, then mixing the finished product particles, the cement mortar and water, so as to prepare mixed slurry, and casting to form the flower-stand. The process is capable of saving the waste transportation time and cost, greatly saving the cost and protecting the environment, and the flower-stand has the advantages of high strength, excellent water-retaining property, flawlessness and the like.

Description

[0001] Technical field [0002] The present invention involves a method of treatment of construction waste, which specifically involves the process of building waste used for casting. Background technique [0003] Building waste refers to the collective name of the construction, construction, construction, and pipeline networks such as construction, construction units or individuals to build, laid or dismantle, and repair during the process of construction, construction, and pipeline networks. [0004] Building garbage is classified according to the source of source, construction waste can be divided into engineering residue, decoration garbage, demolition garbage, engineering mud, etc.; According to the composition of composition, construction waste can be divided into slag, concrete blocks, crushed stones, brick tilesBlocks, waste mortar, mud, asphalt blocks, waste plastic, waste metals, waste bamboo and wood and so on. [0005] With the acceleration of industrialization and ur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/06C04B18/16
CPCY02W30/91
Inventor 曾德明
Owner TAIZHOU TONGDA CONSTR CO LTD
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