Foam concrete vegetation matrix and preparation and use method thereof

Abstract

The invention relates to a foam concrete vegetation matrix and a preparation and use method thereof, and belongs to the technical field of building materials. The preparation and use method comprisesthe following steps: doping 0.2-0.5 wt% of SAP particles into plant seeds or seedlings to be planted, pre-absorbing 4-10 wt% of water, and uniformly distributing a thickness layer with the thickness of 0.5-1cm on the bottom layer of a mold; pre-absorbing 2.8%-4.0% of boric acid solution and 0.7%-1.0% of citric acid solution by the residual SAP particles, uniformly mixing with 27.0%-35.0% of P.O 42.5-grade cement, 25.0%-30.0% of coal gangue powder with more than 400 meshes, 3.0%-5.0% of rice hull ash with more than 200 meshes, 0.2%-0.4% of coconut oil, 0.5%-0.7% of 1cm-3cm alkali-resistant glass fiber, 0.1%, 0.1-0.2% of polycarboxylic acid water reducing agent, and the left water, adding 30% of hydrogen peroxide into an obtained slurry for continuous stirring to obtain a foamed slurry; andpouring the foamed slurry into a mold, hardening, molding, and overturning to obtain the foam concrete vegetation matrix. The foam concrete vegetation matrix is excellent in performance and suitable for various projects such as urban landscaping, household aerial gardens and potted plants.

Description

Technical field: [0001] The invention belongs to the technical field of building materials, and in particular relates to a foam concrete planting substrate and a preparation and use method thereof. Background technique: [0002] At present, in urban greening, the effective area that can be planted is a key issue. The three-dimensional greening will be an effective technical approach. Whether it is landscape construction or a family sky garden, a planting substrate with reliable performance, simple production and low cost is required. Most of the existing planting substrates are plastic container filled soil, macroporous fabric reinforced soil and the like. It cannot effectively meet the needs of plant substrate transfer, complex landform construction, etc., and is not suitable for facade paving operations. As a light inorganic material, the plant-based foam concrete has abundant raw materials, low cost, excellent mechanical properties and good adjustability. The use of f...

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Problems solved by technology

Wang Guiling, Wang Longzhi, Zhang Haixia, etc. published in the 02nd issue of Concrete Magazine in 2013 entitled "Mix Design of Vegetative Concrete, Alkalinity Control, Vegetative Soil and Plant Selection". The feasibility of vegetation growth, but only permeable concrete materials are discussed in the paper, and the content of foam concrete materials is not involved

In the 09th issue of Concrete Magazine in 2019, Li Xiao and Zhao Jingwen published a paper titled "Using SAP Particles to Control the Alkalinity of Vegetated Foamed Concrete at 28d Age". The control of internal alkalinity, the article involves the control of the alkalinity of foam concrete, but it uses sulphoaluminate cement as the main material, which is essentially different from the patent of the present invention, and the article only discusses the alkalinity of foam concrete In terms of regulation, it does not involve the use of coal gangue powder and rice husk ash to provide minerals and nutrients and other vegetation elements covered by the patent of the present invention

In short, most of the existing research results and papers use plastic containers or fabrics and permeable concrete to fill planting media to prepare planting substrates, and use ordinary Portland cement to mix water-storage substrates and minerals to prepare planting substrates. No

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