Waste construction material soil conversion method

A technology for building materials and soil, applied in building thermal insulation materials, chemical instruments and methods, construction, etc., can solve problems such as troublesome connection work, shorten the service life of materials, etc., achieve no plane resistance, no shape retention, and improve pattern quality. Effect

Inactive Publication Date: 2007-09-19
MITSUBISHI SHOJI CONSTR MATERIALS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of adhesives makes the connection work particularly cumbersome
And the use of adhesives in living spaces is also not preferred due to the release of high molecular weight monomers and solvents that make up the adhesive
Moreover, the service life of these materials is shortened due to the deterioration of the adhesive

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0113] Using 27 parts of quartzite powder as silicon-containing raw material, 27 parts of calcium hydroxide as calcium-containing raw material, 6 parts of pulp as reinforcing fiber and 40 parts of unexpanded vermiculite (source: South Africa, particle size: 0.25-0.5 mm), these ingredients As a starting material, water is added to the starting material and then mixed to form a slurry with a solid content of about 12%. After forming a rough sheet using a sheet forming machine, the sheet is pressure-cured in an autoclave (160 Curing at -180°C for about 10 hours), and then drying at 80°C to a predetermined moisture content to obtain a calcium silicate board (30cm×30cm×6cm).

Embodiment approach 2

[0115] A calcium silicate board was obtained in the same manner as in Embodiment 1 using 42 parts of quartzite powder, 42 parts of calcium hydroxide, 6 parts of pulp and 10 parts of unexpanded vermiculite.

Embodiment approach 3

[0117] Water was added to 16 parts of slag powder, 38 parts of flue gas desulfurization gypsum powder, 6 parts of paper pulp and 40 parts of unexpanded vermiculite, and then mixed to form a slurry with a solid content of about 12%. Then, after forming a rough sheet using a sheet forming machine, the sheet was steam-cured at about 80° C. for about 12 hours, and then dried at 80° C. to obtain a slag gypsum board (30 cm×30 cm×6 cm).

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Abstract

A soil conversion method of waste building materials is provided. The waste building materials of building materials molded by a building material composition are converted into soil by crushing or steam treatment. The building material composition is formed by blending calcium silicate-based building materials with non-expanded vermiculite.

Description

[0001] This divisional application is a divisional application of the original invention application PN020439 (application date: November 09, 2001, application number: 01803611.2, invention name: building material composition and building material). technical field [0002] The present invention relates to a construction material composition, a construction material using the composition and their production methods. Furthermore, the present invention relates to a coating composition and a coated article coated therewith. In addition, the present invention relates to a method of soil conversion of building materials. Background technique [0003] In the past, in the manufacturing of building materials, base materials were selected for various purposes, and various materials were often mixed into each base material. [0004] A specific example of a mineral based material is vermiculite. This vermiculite is a clay mineral similar to biotite, and at high temperature due to de...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B09B3/00C04B18/16E04B1/64B09BB28BC04BC04B14/20C04B28/02C04B28/14C04B28/18C04B40/02C04B103/46C04B111/72C09DE04BE04F
CPCY02W30/91
Inventor 福田恭彬塩地博文大久保元正矢萩文行三田利彦石原和雄
Owner MITSUBISHI SHOJI CONSTR MATERIALS CORP
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