Building material produced from construction garbage and preparation thereof

A technology of construction waste and building materials, applied in the direction of sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problems of complex production process management and increased production costs, and achieve the effect of improving the ecological environment and reducing manufacturing costs

Inactive Publication Date: 2009-01-21
SHENZHEN ZHONGXINHUAN SCI
View PDF2 Cites 38 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these technologies utilize construction waste and domestic waste, they also need to add other relatively expensive materials in their production, such as cem

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0018] The preparation method of the building materials produced by utilizing construction waste of the present invention comprises the following steps:

[0019] 1. Preliminary selection of construction waste, scrap metal, bamboo, wood, and plastic in the construction waste are removed to obtain construction waste raw materials, including masonry, concrete and soil, of which the soil content is 0-35%;

[0020] 2. Crushing raw materials, using jaw crusher and impact crusher for two-stage crushing, crushing construction waste raw materials to a particle size greater than 0 to 4 mm, and at the same time using a ball mill to grind quicklime with an effective CaO content ≥ 85% to less than 100 mesh;

[0021] 3. Matching of raw materials, mix the crushed construction waste and quicklime fine powder by weight to 85-96 parts of construction waste and 4-15 parts of quicklime, and then transport them to the digestion bin for 1 to 3 hours;

[0022] 4. Forming, the material from the dige...

Example Embodiment

[0024] Embodiment 1, the soil content is 8%, the raw material of construction waste is pulverized to a particle size of less than 4mm, the quicklime with CaO content ≥ 80% is ground to less than 100 mesh, and the pulverized construction waste and the fine powder of quicklime are 90 parts by weight of construction waste, 10 parts of quicklime are mixed evenly and then transported to the digesting silo for 1 hour. The material from the digesting silo enters the mixer, and 6% water of the total dry powder is added to fully mix, and then transported to the silo and pressed into a hexagonal shape on the brick press. Shaped profiles (240mm×115mm×53mm), the pressure used is 600 tons, the pressurization time lasts for 2 seconds, and it is sent into the autoclave, cured for 8 hours under the conditions of temperature of 200 ° C and pressure of 8 kg, and natural cooling. , the material from the autoclave is the finished building material. According to the national standard "Sintered Ord...

Example Embodiment

[0025] Embodiment 2, the soil content is 16%, the construction waste raw material is pulverized to a particle size of less than 4mm, and the quicklime with CaO content ≥ 80% is ground to less than 100 mesh, and the pulverized construction waste and quicklime fine powder are 93 parts by weight of construction waste, 7 parts of quicklime are mixed evenly and then transported to the digesting bin for 1 hour. The material from the digesting bin enters the mixer, and 7% of the total dry powder is added to mix thoroughly, then transported to the bin and pressed into a hexagonal shape on a brick press. The shape of the profile (240mm×115mm×53mm), the pressure used is 500 tons, the pressurization time lasts 2 seconds, and it is sent into the autoclave, and cured for 7 hours under the conditions of a temperature of 190 ° C and a pressure of 8 kg, and natural cooling , the material from the autoclave is the finished building material. According to the national standard "Sintered Ordinar...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Compressive strengthaaaaaaaaaa
Compressive strengthaaaaaaaaaa
Compressive strengthaaaaaaaaaa
Login to view more

Abstract

The invention discloses a method for manufacturing building materials with construction debris. The technical problem resolved by the invention is to simplify material formula and lower cost. The building material of the invention comprises the following components in weight portion: 85 to 97 portions of construction debris and 3 to 15 portions of quicklime, wherein the construction debris comprises bricks, stones and concrete, and the effective content of CaO of quicklime is more than or equal to 80 percent. The preparation method of the invention comprises the following steps of: initial separation, crushing, raw material mixing, shaping and high pressure steam curing. Compared with prior art, the method of the invention has the advantages of utilizing construction debris as main materials, realizing the cyclic utilization of waste, reducing the manufacturing cost of products and improving the ecological environment, along with safety and reliability; moreover, the building materials of the invention meet the quality standards of building materials.

Description

technical field [0001] The invention relates to a building material and a preparation method thereof, in particular to a building profile manufactured by using garbage as a main raw material and a preparation method thereof. Background technique [0002] Construction waste in a broad sense refers to the demolition of old buildings and buildings during the renovation of old cities, as well as the waste generated during construction, mainly including: soil, dregs, scrap steel bars, scrap iron wires and various scrap steel fittings, metal pipelines Waste, waste bamboo and wood, wood chips, shavings, packing boxes and bags of various decorative materials, scattered mortar and concrete, broken bricks and broken concrete blocks, yellow sand, stones and block stones scattered during transportation, these materials account for about 80% of the total construction waste. In a narrow sense, construction waste refers to bricks, stones, concrete, mortar, glass, ceramics and other wastes...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C04B18/16
CPCC04B20/02Y02W30/91C04B18/167C04B22/064
Inventor 梁文匡郑祥鸿余群胜丁铸
Owner SHENZHEN ZHONGXINHUAN SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap