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Green and environment-friendly prefabricated inner wallboard and manufacturing method thereof

A green and environmental protection, interior wall panel technology, applied in the field of building materials, can solve the problems of short service life of prefabricated interior wall panels, comprehensive damage of prefabricated interior wall panels, accelerated freeze-thaw damage, etc., so as to be beneficial to environmental protection and reduce self-weight. , reduce the effect of cracking

Active Publication Date: 2020-04-24
深圳市胜盈新型建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing prefabricated interior wall panels often crack and deform with the passage of time. Once cracks appear in the prefabricated interior wall panels, other damages to the prefabricated interior wall panels will be accelerated, and the intrusion of air, water, carbon dioxide, etc. will cause Concrete carbonation and steel bar corrosion speed up, and the volume of the steel bar corrosion product rust is much larger than the original volume of the steel bar, which will cause the cracks to expand. It caused comprehensive damage to the prefabricated interior wall panels, which made the service life of the prefabricated interior wall panels shorter

Method used

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  • Green and environment-friendly prefabricated inner wallboard and manufacturing method thereof
  • Green and environment-friendly prefabricated inner wallboard and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Firstly, the bought coal slag is crushed through a grinder, and then the coal slag with a particle size of 1.5-1.7mm is screened out; secondly, the building slag is first crushed with a crusher, and then the crushed building slag is ground with a grinder, and finally Screen out construction slag with a particle size of 3-3.5mm; again, select sand with a particle size of 0.25-0.28; weigh 20 parts of 42.5R low-alkali sulfoaluminate micro-expansion cement, 8 parts of sand, 8 parts of cinder and 64 1 part of building slag for preliminary mixing, then add 20 parts of water, and use a mixer to stir for 15 seconds, then extrude the mixed concrete into a prefabricated mold through a mobile extruder for static hardening of the slab, and when the slab is hardened, the slab The slab was released from the mold, and then transported to the curing field for 15 days of curing under natural conditions, and then a sample of 2470×600×90mm was taken out from the slab, and the test was carr...

Embodiment 2

[0041]Firstly, the bought coal slag is crushed through a grinder, and then the coal slag with a particle size of 1.5-1.7mm is screened out; secondly, the building slag is first crushed with a crusher, and then the crushed building slag is ground with a grinder, and finally Screen out construction slag with a particle size of 3-3.5mm; again, select sand with a particle size of 0.25-0.28; weigh 25 parts of 42.5R low-alkali sulfoaluminate micro-expansion cement, 5 parts of sand, 7.8 parts of cinder and 62.2 parts 1 part of building slag for initial mixing, then add 20 parts of water, use a mixer to stir for 15 seconds, observe the flow state of the concrete, record the results as shown in Table 2, and then squeeze the mixed concrete into the prefabricated mold through a mobile extruder Carry out static hardening of the slab. When the slab is hardened, the slab is released from the mold, and then transported to the curing field for 15 days of curing under natural conditions, and th...

Embodiment 3

[0043] Firstly, the bought coal slag is crushed through a grinder, and then the coal slag with a particle size of 1.5-1.7mm is screened out; secondly, the building slag is first crushed with a crusher, and then the crushed building slag is ground with a grinder, and finally Screen out construction slag with a particle size of 3-3.5mm; again, select sand with a particle size of 0.25-0.28; weigh 27 parts of 42.5R low-alkali sulfoaluminate micro-expansion cement, 4 parts of sand, 7.7 parts of cinder and 61.3 1 part of building slag for preliminary mixing, then add 20 parts of water, and use a mixer to stir for 15 seconds, then extrude the mixed concrete into a prefabricated mold through a mobile extruder for static hardening of the slab, and when the slab is hardened, the slab The slab was released from the mold, and then transported to the curing field for 15 days of curing under natural conditions, and then a sample of 2470×600×90mm was taken out from the slab, and the test was ...

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Abstract

The invention relates to a green and environment-friendly prefabricated inner wallboard and a manufacturing method thereof. The green and environment-friendly prefabricated inner wallboard comprises the following dry materials in percentage by weight: 42.5 R low-alkali sulfoaluminate, 20%-27% of micro-expansive cement; 4%-8% of sand; 69%-72% of a coal slag and building slag mixture, and water, wherein the weight ratio of water to the dry material is 1: (5-6). The environment-friendly prefabricated inner wallboard has the advantages of environmental friendliness, cracking resistance, and high strength.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a green and environment-friendly prefabricated interior wall panel and a manufacturing method thereof. Background technique [0002] Prefabricated interior wall panels refer to reinforced concrete slab members processed in prefabrication factories or construction sites for building assembly, referred to as wall panels or siding panels. Prefabricated concrete wall panels are used to build prefabricated large-slab buildings, which can improve industrialization. , The degree of mechanized construction, reducing on-site wet work, saving on-site labor, overcoming seasonal effects, and shortening the construction period, so the use of prefabricated interior wall panels is becoming more and more widespread. [0003] However, the existing prefabricated interior wall panels often crack and deform with the passage of time. Once cracks appear in the prefabricated interior wall pa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/06
CPCC04B28/06C04B2111/00017C04B2201/50C04B2201/20C04B14/068C04B18/103C04B18/16
Inventor 余文英周文
Owner 深圳市胜盈新型建材有限公司
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