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A kind of thermal insulation formwork of external wall without demolition and preparation method thereof

An external wall insulation and formwork technology, which is applied in the fields of formwork/formwork components, formwork/formwork/work frame, and on-site preparation of building components, can solve the problem of low production efficiency, long maintenance cycle of insulation boards, and easy breakage and other problems to achieve the effect of improving usability, improving workability and water retention, and enhancing fire resistance

Active Publication Date: 2021-06-18
山东省滨州市坤合建筑工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The insulation board prepared by this method has a long maintenance period, low production efficiency, and is prone to breakage during use.

Method used

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  • A kind of thermal insulation formwork of external wall without demolition and preparation method thereof
  • A kind of thermal insulation formwork of external wall without demolition and preparation method thereof
  • A kind of thermal insulation formwork of external wall without demolition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] In this example, the non-demolition-free exterior wall insulation formwork is obtained through the following steps:

[0058] (1) Preparation of high-strength slurry: high-strength slurry is prepared by mixing water and the first ash material. The mass ratio of water and the first ash material is 1:2. The first ash material is made of Portland cement, sulfur-aluminum cement, Composed of fly ash, quartz sand, water repellent, calcium formate, VAE emulsion and admixtures, Portland cement accounts for 20% by mass of the first ash material, and sulfur-aluminum cement accounts for 5.5% by mass of the first ash material , fly ash accounts for 8% by mass of the first ash material, quartz sand accounts for 64% by mass of the first ash material, water-repellent agent accounts for 0.1% by mass of the first ash material, and calcium formate accounts for 0.1% by mass of the first ash material The mass percentage is 0.4%, the VAE emulsion accounts for 1% of the mass percentage of the...

Embodiment 2

[0071] The differences between this embodiment and Embodiment 1 are:

[0072] In step (1), the mass ratio of water to the first ash is 1:4, Portland cement accounts for 22% by mass of the first ash, and sulfur-aluminum cement accounts for 7% by mass of the first ash, Fly ash accounts for 5% by mass of the first ash material, quartz sand accounts for 63% by mass of the first ash material, water repellent accounts for 0.1% by mass of the first ash material, and calcium formate accounts for the mass percentage of the first ash material The percentage is 0.5%, the VAE emulsion accounts for 1.2% of the mass percentage of the first ash material, and the admixture accounts for 1.2% of the mass percentage of the first ash material;

[0073] In step (2), the volume ratio of composite slurry to lightweight aggregate is 1:5, the mass ratio of water to the second ash is 1:4, and the mass percentage of Portland cement in the second ash is 62 %, the mass percentage of high alumina cement i...

Embodiment 3

[0076] The differences between this embodiment and Embodiment 1 are:

[0077] In step (1), the mass ratio of water to the first ash is 1:3, Portland cement accounts for 21% by mass of the first ash, and sulfur-aluminum cement accounts for 6% by mass of the first ash, Fly ash accounts for 5% of the mass percentage of the first ash material, quartz sand accounts for 65.6% of the mass percentage of the first ash material, water-repellent agent accounts for 0.1% of the mass percentage of the first ash material, and calcium formate accounts for the mass percentage of the first ash material The percentage is 0.3%, the VAE emulsion accounts for 1% of the mass percentage of the first ash material, and the admixture accounts for 1% of the mass percentage of the first ash material;

[0078] In step (2), the volume ratio of composite slurry to lightweight aggregate is 1:3.5, the mass ratio of water to the second ash is 1:3, and the mass percentage of Portland cement in the second ash is ...

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Abstract

The invention discloses a demolition-free external wall thermal insulation formwork and a preparation method thereof, which belong to the field of construction technology, and (1) prepare high-strength slurry by mixing water and first ash material at a mass ratio of 1:2-4, The raw material percentage of the first ash is 20-22% of Portland cement, 5.5-9.5% of sulfur-aluminum cement, 5-8% of fly ash, 63-67% of quartz sand, 0.1% of water repellent, and 0.3% of calcium formate. ~0.5%, VAE emulsion 1~1.8% and admixture 1~1.5%; (2) prepare insulation slurry; (3) coat inner layer slurry; (4) coat outer layer slurry and (5) cut Made with hole making. This method can improve the workability and water retention of high-strength slurry according to a specific ratio, increase its final setting strength, lower the operating temperature, and shorten the curing time, so that the first-time composite slurry can be turned over after 4 hours, and the second-time The composite slurry can be cut and made after 8 hours, which greatly shortens the production cycle; the thermal insulation slurry can also reduce the weight of the formwork and improve its strength, fire resistance and usability.

Description

technical field [0001] The invention belongs to the technical field of construction, and in particular relates to a thermal insulation formwork for an external wall without demolition and a preparation method thereof. Background technique [0002] With the increasing shortage of energy, energy saving and consumption reduction has become the general trend of all walks of life, including the construction field. In order to achieve a good thermal insulation effect for the building wall, the thermal insulation board is usually bonded with adhesive glue on the outside of the wall, and the additional thermal insulation board is used to realize the thermal insulation function of the wall. This method was once widely popular and became the main means of building energy conservation. However, this method needs to carry out insulation board construction again after the wall body construction is completed, which increases the construction process and prolongs the construction period. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04G11/06E04G9/10E04B2/86C04B28/06
Inventor 霍兴泉霍康琦
Owner 山东省滨州市坤合建筑工程有限公司
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