Foam concrete prepared from kitchen waste and construction waste as raw materials, and preparation method thereof

A technology of foam concrete and kitchen waste, which is applied to ceramic products, other household utensils, sustainable waste treatment, etc., can solve the problems of high consumption and achieve the effects of saving manufacturing costs, efficient integration, and huge market demand

Active Publication Date: 2019-12-24
WUHAN INSTITUTE OF TECHNOLOGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, some people have tried to use recycled materials from construction waste to produce recycled bricks, blocks, wall panels, floor tiles and other building materials, but they need to consume a lot of water, cement, fly ash, lime and other substances

Method used

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  • Foam concrete prepared from kitchen waste and construction waste as raw materials, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Such as figure 1 As shown, the collected food waste is sorted to remove metal, plastic, tableware and other sundries. Next, the kitchen waste and water are evenly mixed in a weight ratio of 1:1, then fully ground and pulverized, and the coarse residue and oil are separated to obtain a slurry. Transfer the slurry into the fermenter at 1kg / m 3 The added amount of the compound microbial flora (recipe a) was added and stirred evenly, and fermented for 48 hours at 37°C and slurry pH=8.5. After the fermentation is completed, a polyacrylamide foam stabilizer equivalent to 0.001% by weight of the fermentation liquid is added to the fermenter, and the obtained foam-making liquid is injected into a foaming device for physical foaming. The generated foam is evenly mixed with the concrete raw materials. The formula of the concrete raw materials is as follows: 200g of water, 1500g of Portland cement, 1.5g of water reducer, 3g of sodium sulfate, and 600g of foam. After the above m...

Embodiment 2

[0025] This example is basically the same as Example 1, except that the formula of concrete raw materials is: 240g of water, 1000g of Portland cement, 1.0g of water reducing agent, 5g of sodium sulfate, 1200g of recycled construction waste materials, and 700g of foam.

[0026] The compressive strength, water absorption and dry density of the obtained samples were: 3.6MPa, 15%, 0.71g / cm 3 . The foam concrete can be marked as FC A07-C4-W15-P-JG / T 266-2011.

Embodiment 3

[0028] This example is basically the same as Example 1, except that the formula of concrete raw materials is: 500g of water, 1500g of Portland cement, 1.0g of water reducing agent, 5g of sodium sulfate, 1400g of recycled construction waste materials, and 200g of fly ash , Foam 800g.

[0029] The compressive strength, water absorption and dry density of the obtained samples were: 4.7MPa, 10%, 1.05g / cm 3 . The foam concrete can be marked as FC A10-C5-W10-P-JG / T 266-2011.

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Abstract

The invention relates to foam concrete prepared from kitchen waste and construction waste as raw materials and a preparation method thereof. The preparation method includes following steps: collectedkitchen waste is subjected to impurity removal and oil removal treatment, then water is added for grinding to prepare slurry, then bacteria are introduced into the slurry for fermentation; after fermentation is completed, a foam stabilizer is added for physical foaming; finally, obtained foam is evenly mixed with recycled construction waste, cement and other concrete raw materials, and injection molding, curing and demolding are conducted. According to the invention, the synchronous coordination treatment of the construction waste and the kitchen waste is achieved, the manufacturing cost of the foam concrete is saved, the treatment cost of the kitchen waste is reduced, and the concepts of turning waste into wealth and recycling waste and waste are fully realized.

Description

technical field [0001] The invention relates to the technical fields of environmental protection and building materials, in particular to a foam concrete made of kitchen waste and construction waste as raw materials and a preparation method thereof. Background technique [0002] Kitchen waste, commonly known as swill, swill or swill, is the domestic waste formed by residents in the process of living consumption. Food waste is highly perishable, can emit foul odors and spread bacteria and viruses. The main components of food waste include rice and flour food residues, vegetables, animal and vegetable oils, meat and bones, etc. Urban food waste is mixed with rotten vegetables and leaves from vegetable markets. From the perspective of chemical composition, food waste contains starch, cellulose, protein, lipid and inorganic salts. Food waste has a significant duality of hazards and resources, and its characteristics can be summarized as follows: (1) High moisture content, reac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/38C04B24/26C04B24/28C04B28/04C04B38/10C04B24/00C04B18/16
CPCC04B40/0046C04B28/04C04B24/001C04B18/16C04B2201/50C04B2201/20C04B2103/0001C04B2103/48C04B2103/302C04B22/147C04B38/106Y02W30/91
Inventor 袁军程健贾丽慧张富青
Owner WUHAN INSTITUTE OF TECHNOLOGY
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