Recycled aggregate mountain flour anti-seismic hollow block for masonry frame filled wall and preparation method thereof

A technology of recycled aggregates and hollow blocks, which is applied in buildings, building components, building structures, etc., can solve the problem of less research reports on seismic performance, and achieve the effect of improving shear resistance.

Active Publication Date: 2016-03-09
LIMING VOCATIONAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These research reports mainly focus on its mechanical properties, light weight, thermal insulatio

Method used

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  • Recycled aggregate mountain flour anti-seismic hollow block for masonry frame filled wall and preparation method thereof
  • Recycled aggregate mountain flour anti-seismic hollow block for masonry frame filled wall and preparation method thereof
  • Recycled aggregate mountain flour anti-seismic hollow block for masonry frame filled wall and preparation method thereof

Examples

Experimental program
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Example Embodiment

[0028] The present invention also provides a method for preparing recycled aggregate stone powder anti-seismic hollow block for building a frame-filled wall. The specific steps are as follows:

[0029] Firstly, the cement, stone powder, and fine aggregate are mixed by wheel milling. After mixing evenly, add polycarboxylate superplasticizer and water, and keep stirring until the cement slurry can completely cover the fine aggregate particles; then add Recycle coarse aggregate, and continue to add the remaining polycarboxylic acid superplasticizer and water. After forced mixing, the dry recycled aggregate stone powder concrete is prepared, and the dry recycled aggregate stone powder concrete is sent to the hydraulic forming machine in batches , The semi-finished product is obtained by high-frequency vibration and compression molding; after the semi-finished product is allowed to stand for 12 to 24 hours, and then autoclaved for 10 to 12 hours, a shock-resistant hollow masonry made o...

Example Embodiment

[0043] Example 1

[0044] Firstly, the cement, stone powder, and fine aggregate are mixed by wheel milling. After mixing evenly, add polycarboxylate superplasticizer and water, and keep stirring until the cement slurry can completely cover the fine aggregate particles; then add Recycle coarse aggregate, and continue to add the remaining polycarboxylic acid superplasticizer and water. After forced mixing, the dry recycled aggregate stone powder concrete is prepared, and the dry recycled aggregate stone powder concrete is sent to the hydraulic forming machine in batches , The semi-finished product is obtained by high-frequency vibration and compression molding; after the semi-finished product is allowed to stand for 12 to 24 hours, and then autoclaved for 10 to 12 hours, a shock-resistant hollow masonry made of recycled aggregate stone powder for building a frame-filled wall can be obtained Block finished product.

[0045] The weight ratio of the cement, recycled coarse aggregate, s...

Example Embodiment

[0049] Example 2

[0050] It is basically the same as Example 1, except that:

[0051] The mass mixing ratio of the cement, recycled coarse aggregate, stone powder, fine aggregate and water is 1:2.95:0.60:2.65:0.35.

[0052] The polycarboxylic acid superplasticizer is a self-made AMPS modified polyacrylic acid superplasticizer, and its blending amount is 0.60% of the cement mass.

[0053] n (polyethylene glycol monomethyl ether acrylate): n (sodium methacryl sulfonate): n (sodium 2-acrylamide-2-methacryl sulfonate): n (acrylic acid) = 1.0: 2.5: 1.0 : 7.0, MPEG relative molecular mass is 1200, initiator APS dosage is 6% of the total mass of the mixed monomer solution, the polymerization temperature is 90°C and the polymerization time is 3.5h.

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Abstract

The invention discloses a recycled aggregate mountain flour anti-seismic hollow block for a masonry frame filled wall. The hollow block comprises a rectangular shell, wherein two rectangular holes are formed inside the shell; first grooves are formed in the top and bottom surfaces of the shell; and second grooves are formed in four side surfaces of the shell. The invention also discloses a method for preparing the recycled aggregate mountain flour anti-seismic hollow block for the masonry frame filled wall. The recycled aggregate mountain flour anti-seismic hollow block for the masonry frame filled wall prepared by the previous method is tested by referring to 'concrete block and brick test method' (GB/T 4111-2013), and the compressive strength, breaking strength and shear strength can respectively reach 8.60MPa or more, 1.30MPa or more and 0.10MPa or more. The recycled aggregate mountain flour anti-seismic hollow block disclosed by the invention is used for the frame filled wall, is full in hysteretic curve, high in ductility and high in energy-dissipating capacity and has good anti-seismic property.

Description

technical field [0001] The invention belongs to the technical field of civil engineering masonry materials, and in particular relates to a recycled aggregate stone powder anti-seismic hollow block for building a frame-filled wall, and the invention also relates to a recycled aggregate stone powder anti-seismic hollow block for building a frame-filled wall Method of making blocks. Background technique [0002] A frame-fill wall is a wall built between columns in a frame structure. Before the 1960s, the design of the frame-filled wall was not taken seriously, and it was always considered to be a "non-structural" component that played the role of enclosure and separation; in 1964, a magnitude 9.2 earthquake occurred in southern Alaska, USA. The damage loss of "non-structural" components greatly exceeds the loss of the main frame structure, and the anti-seismic problem of "non-structural" components began to attract people's attention; my country also began to pay attention to i...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B18/16C04B24/16E04C1/00C08F283/06C04B103/30
CPCC04B24/165C04B28/00C04B2103/302C08F283/065E04C1/00C04B18/12C04B18/16C04B40/0028C04B40/024C08F220/585Y02W30/91
Inventor 陈宝璠卓玲
Owner LIMING VOCATIONAL UNIV
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