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Ceramsite concrete and external wall panel

A technology of ceramsite concrete and exterior wall panels, applied in covering/lining, construction, building materials, etc., can solve the problems of lack of light weight, high strength, energy-saving cement concrete exterior wall panels, etc., and achieve high strength, good durability, Construct simple effects

Pending Publication Date: 2021-07-16
GUANGZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The overall situation is that there is a great lack of cement concrete exterior wall panels that are lightweight, high-strength, energy-saving, and decorative

Method used

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  • Ceramsite concrete and external wall panel
  • Ceramsite concrete and external wall panel
  • Ceramsite concrete and external wall panel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0097] The composition of the ceramsite concrete in this example is as follows in parts by mass:

[0098] 360 parts of 42.5R Portland cement; ceramsite (spherical high-performance porcelain slag ceramsite, maximum particle size 12mm, density 500kg / m 3 , cylinder compressive strength 2.5MPa, water absorption 4%) 500 parts; pottery sand (spherical pottery sand, density 710kg / m 3 ) 400 parts; water 160 parts; fly ash 80 parts; slag sand powder (density 1600kg / m 3 ) 100 parts; polycarboxylate superplasticizer 0.1 part; silane modified redispersible latex powder 0.4 part; basalt fiber (density 2.701g / cm 3 , 朿 shape, diameter 16 microns, length 22mm, breaking strength 1.948×10 3 MPa, elastic modulus 7.93×10 4 MPa) 3 parts.

[0099] The ceramsite concrete of this example is used to make a ceramsite concrete exterior wall panel of strength grade LC20 and density grade D1500. Dimensions of wall panels: height × width × thickness: 3600 × 4200 × 120 (mm). The preparation method of ...

Embodiment 2

[0104] The composition of the ceramsite concrete in this example is as follows in parts by mass:

[0105] 400 parts of 42.5R Portland cement; ceramsite (spherical high-performance porcelain slag ceramsite, maximum particle size 15mm, density 580kg / m 3 , cylinder compressive strength 5MPa, water absorption 4%) 580 parts; pottery sand (spherical pottery sand, density 710kg / m 3 ) 320 parts; slag sand powder (density 1600kg / m 3 ) 100 parts; 30 parts of zeolite powder; 170 parts of water; 80 parts of fly ash; 0.1 part of polycarboxylate superplasticizer; 0.4 part of silane-modified redispersible latex powder.

[0106] Use the ceramsite concrete of this example to make the ceramsite concrete decorative exterior wall hanging board with strength grade LC30 and density grade D1600. Dimensions of wall panels: height × width × thickness: 3600 × 1200 × 180 (mm). The decorative board has a decorative surface layer of a modified inorganic powder composite building facing sheet, and its p...

Embodiment 3

[0111] The composition of the ceramsite concrete in this example is as follows in parts by mass:

[0112] 470 parts of 42.5R Portland cement; ceramsite (spherical high-performance porcelain slag ceramsite, maximum particle size 15mm, density 580kg / m 3 , cylinder compressive strength 5MPa, water absorption 4%) 580 parts; pottery sand (spherical pottery sand, density 710kg / m 3 ) 200 parts; slag sand powder (density 1680kg / m 3 ) 100 parts; water 160 parts; fly ash 70 parts; machine-made sand (particle size less than 5mm) 120 parts; polycarboxylate superplasticizer 0.2 parts; 2.701g / cm 3 , 朿 shape, diameter 16 microns, length 22mm, breaking strength 1.948×10 3 MPa, elastic modulus 7.93×10 4 MPa) 3 parts.

[0113] The ceramsite concrete of this example is used to make the ceramsite concrete fair-faced exterior wall panels of strength grade LC40 and density grade D1600. Dimensions of wall panels: height × width × thickness: 3600 × 4200 × 240 (mm). The preparation method of th...

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Abstract

The invention discloses ceramsite concrete and an external wall panel. The dry material of the ceramsite concrete is prepared from the following components in parts by mass: 300 to 500 parts of Portland cement, 500 to 800 parts of ceramsite, 200 to 400 parts of pottery sand, 0 to 100 parts of machine-made sand, 80 to 180 parts of admixture, 0.1 to 1.0 part of a water reducing agent, 0.1 to 0.5 parts of a modifier and 0 to 3 parts of an anti-cracking enhancer. The external wall panel is prepared from the ceramsite concrete. According to the invention, the high-performance porcelain slag ceramsite is adopted to prepare the all-light-ceramsite medium-density lightweight concrete, and the lightweight concrete has high strength and good heat insulation performance. The ceramsite lightweight concrete is applied to preparation of a large plate for an outer wall of a fabricated building system, the physical and mechanical properties of the ceramsite lightweight concrete can meet the performance requirements of a non-bearing outer wall of a fabricated building, and the ceramsite lightweight concrete is green, environmentally friendly, durable, non-combustible, lightweight, energy-saving and integrates enclosure and decoration.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a ceramsite concrete and an exterior wall board. Background technique [0002] At present, my country's lightweight concrete wall panels mainly include strip-shaped cement concrete lightweight wall panels (with a surface density of 100kg / m 2 Below, the compressive strength is about 3.5-7.5MPa) and the autoclaved aerated concrete wallboard (the density is 700kg / m 3 Below, the compressive strength is 3.5~7.5MPa). Cement concrete light-weight wall panels only have non-load-bearing inner partition wall slats. Autoclaved aerated concrete slats are also mostly used for non-load-bearing interior walls. The load-bearing and non-load-bearing cement concrete exterior wall panels in the prefabricated building system mainly use reinforced concrete PC panels, SP prestressed hollow panels, various reinforced concrete composite energy-saving wall panels, and sandwich wall panels. ...

Claims

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Application Information

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IPC IPC(8): C04B28/04E04C2/06E04F13/072C04B18/02
CPCC04B28/04E04C2/06E04F13/08C04B18/025C04B2201/20C04B2201/50C04B2201/32
Inventor 甘伟甘立王庆何娟张传镁
Owner GUANGZHOU UNIVERSITY