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Ceramic material with sound-absorbing and plant-cultivating functions and preparation method thereof

A technology for ceramic materials and plants, applied in the field of preparation of ceramic materials, can solve the problems of complicated construction, high construction cost, blockage of sewers, etc., and achieve the effects of convenient construction and simple structure

Active Publication Date: 2012-06-27
再森土环保科技(武汉)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing greening technology adopts a trough bed, that is, a trough is built with bricks, wooden squares or hard plastic frames, and a protective layer or a fixed frame, a drainage layer, a water filter layer, a water-retaining layer or a water-retaining agent are laid in the trough. And soil or soil substitutes (cultivation base), etc., such as patented "Natural Ecological Roof Greening Technology" (CN101131027A), "Long-lasting Lightweight Substrate Formula for Roof Greening" (CN1460408A), "Roof Greening System" (CN 101368431A), " A method of soilless greening on the roof" (CN1143612C), "Production method of roof greening" (CN1614176A), "Non-woven blanket for cultivation and its method for lawn blanket production and roof greening construction" (CN1371596A), " "Roof Green Planting Pond" (CN2737143Y), "Modular Multifunctional Roof Greening Device" (CN101297628A), etc., but these technologies require many types of materials, complex construction, difficult setting and replacement of seedbeds, and require a separate protective layer and drainage layer , water filtration layer, water retention layer and cultivation base, etc., lack aesthetics, and the cultivation base is usually mechanically fixed through the protective layer, the combination is not strong, and it is easy to be washed away or lost by floods, resulting in sewer blockage
In addition, if the cultivation base uses light organic matter such as coconut fiber, rice husk, sawdust, etc., its strength is low, the plant's fixation force is weak, and it is not resistant to high temperature, which is easy to cause fire.
[0004] In addition, the existing sound-absorbing technology uses plant fibers, composite boards and multi-layer, multi-structure and multi-component materials, such as "Preparation method of plant fiber liquid foam packaging material" (CN100346032C), "A method of making sound-absorbing building materials" (CN101497207B), "Green Sound-absorbing Wall Building" (CN2495713Y), "Sandless Concrete Slope Greening Brick" (CN201891122U), "A Method for Using Industrial Solid Waste to Produce Ultrafine Inorganic Fiber" (CN100584791C), "Biologically active exterior wall and roof decoration materials" (CN 1198498A), "assembled ecological sound insulation wall that can absorb the impact of vehicles" (CN101260654B), etc., they cannot be directly planted, and need to rely on cultivation bases, etc., with complex structures. Difficult construction (high construction cost), poor sound absorption performance, and not resistant to high temperature

Method used

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  • Ceramic material with sound-absorbing and plant-cultivating functions and preparation method thereof
  • Ceramic material with sound-absorbing and plant-cultivating functions and preparation method thereof
  • Ceramic material with sound-absorbing and plant-cultivating functions and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The steps are:

[0027] (1) In terms of parts by mass, weigh 5 parts of clay, 10 parts of quartz, 12 parts of limestone, 6 parts of feldspar, 60 parts of construction waste, 4 parts of slag, and 3 parts of cinder; binder carboxymethyl cellulose 7 parts of sodium, 3 parts of gelling agent konjac flour and 1 part of xanthan gum, 5 parts of foaming agent sodium dodecylbenzene sulfonate;

[0028] (2) Dry ball milling for 180 minutes, add 28 parts of water, and then wet stirring for 120 minutes;

[0029] (3) Grouting;

[0030] (4) Dry at 50°C for 12 hours in an air atmosphere;

[0031] (5) Firing at 1260°C for 30min in an air atmosphere.

[0032] The prepared ceramics have an apparent porosity of 76%, a pore size distribution of 35~319μm, a water absorption rate of 125%, and a bulk density of 0.72g / cm 3 , the compressive strength is 2.6MPa, the refractoriness is greater than 1200°C, and the average sound absorption coefficient is 0.65 (average values ​​at frequencies of ...

Embodiment 2

[0034] The steps are:

[0035] (1) In terms of parts by mass, weigh 22 parts of quartz, 12 parts of feldspar, 3 parts of urban sludge, 3 parts of dredging mud, 50 parts of ceramic waste, 4 parts of construction waste, 4 parts of slag, and 2 parts of cinder; 0.5 part of binder polyvinyl alcohol, 0.5 part of dispersant ammonium citrate;

[0036] (2) Add 19 parts of water and wet ball mill for 30 minutes;

[0037] (3) Powder pressing under 400MPa;

[0038] (4) Dry at 120°C for 24 hours in an air atmosphere;

[0039] (5) Firing at 800°C for 360min under microwave conditions.

[0040] The prepared ceramics have an apparent porosity of 67%, a pore size distribution of 17~260μm, a water absorption rate of 73%, and a bulk density of 0.91g / cm 3 , The compressive strength is 5.6MPa, the refractoriness is greater than 1000°C, and the average sound absorption coefficient is 0.49 (the average value when the frequency is 250, 500, 1000, 2000Hz, the same below). Bermudagrass is used for...

Embodiment 3

[0042] The steps are:

[0043] (1) In terms of parts by mass, weigh 45 parts of clay, 2 parts of feldspar, 3 parts of ceramic waste, 50 parts of municipal sludge; 6 parts of dispersant sodium tripolyphosphate;

[0044] (2) Dry stirring for 5 minutes;

[0045] (3) Powder pressing under 0.1MPa;

[0046] (4) Dry at 75°C for 1 hour in a vacuum atmosphere;

[0047] (5) Firing at 1350°C for 3 minutes in an air atmosphere.

[0048] The prepared ceramics have an apparent porosity of 83%, a pore size distribution of 42~830μm, a water absorption rate of 168%, and a bulk density of 0.56g / cm 3 , compressive strength 2.1MPa, refractoriness greater than 1250 ℃, average sound absorption coefficient 0.77. It is used for planting Zoysia fine-leaved grass, which grows well.

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Abstract

The invention discloses a ceramic material with sound-absorbing and plant-cultivating functions and a preparation method thereof. The ceramic material is characterized in that the apparent porosity is 47-93%, the pore size distribution is 5-830 microns, the water absorption is 43-305%, the volume weight is 0.39-1.27g / cm<3>, the compression strength is 1.8-15.9MPa, the degree of fire resistance is above 1000 DEG C and the average sound-absorbing coefficient is 0.31-0.92. The ceramic material provided by the invention is simple in structure and convenient in construction, has the characteristics of water absorption and moisture preservation, and can be directly applied to the plant cultivation, noise reduction and heat insulation at the places, such as, roof, wall, balcony, two sides of road, and the like, under the condition of arranging no protecting layer, dewatering layer, water-filtering layer, water-reserving layer, cultivation medium, and the like. The ceramic material is particularly suitable for the growth of plant roots.

Description

technical field [0001] The invention relates to the field of preparation of ceramic materials, in particular to a ceramic material with functions of sound absorption and plant cultivation and a preparation method thereof. Background technique [0002] With the acceleration of urbanization, urban noise and air pollution are becoming more and more serious, and the heat island effect is becoming more and more obvious. The demand for greening, noise reduction, and heat insulation in places such as the side is becoming stronger and stronger. [0003] The existing greening technology adopts a trough bed, that is, a trough is built with bricks, wooden squares or hard plastic frames, and a protective layer or a fixed frame, a drainage layer, a water filter layer, a water-retaining layer or a water-retaining agent are laid in the trough. And soil or soil substitutes (cultivation base), etc., such as patented "Natural Ecological Roof Greening Technology" (CN101131027A), "Long-lasting...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/02C04B33/132
CPCY02P40/60
Inventor 税安泽覃东朱雯莉王燕民
Owner 再森土环保科技(武汉)有限公司
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