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Filling and binding material composition

A bonding material and composition technology, which is applied in the field of repair material composition of masonry cultural relics and historical buildings, and achieves the effects of good physical and chemical affinity, moderate curing speed and low shrinkage

Inactive Publication Date: 2012-09-05
中国文化遗产研究院 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still many deficiencies in the research on the specific formula and construction technology of hydraulic lime materials, and there are still many problems in actual construction.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0072] 3.1. Filling the bonding material composition and mortar example 1, comparative example 1

[0073]

components

Component sources and product grades

Example 1

Dosage

Comparative example 1

Dosage

natural hydraulic lime

German HESSLER company

NHL2

35％

35％

Limestone powder (coarse 0.5-0.7mm)

Taken from the mountain rocks at the construction site

20％

20％

Limestone powder (fine 0.2-0.5mm)

Taken from the mountain rocks at the construction site

35％

35％

Limestone powder (very fine <0.2mm)

Taken from the mountain rocks at the construction site

8.5％

8.7％

Acrylic redispersible latex powder

National starch

FX7000

0.5％

0.5％

Superplasticizer

Basf

F10

0.1％

0.1％

Cellulose ether

Hercules

C9101

0...

example 2

[0076] 3.2. Fill the bonding material composition and mortar example 2, comparative example 2

[0077]

components

Component sources and product grades

Example 2

Dosage

Comparative example 2

Dosage

natural hydraulic lime

German HESSLER company

NHL2

25％

25％

Limestone powder (coarse 0.5-0.7mm)

Taken from the mountain rocks at the construction site

12％

12％

Limestone powder (fine 0.2-0.5mm)

Taken from the mountain rocks at the construction site

40％

40％

Limestone powder (very fine <0.2mm)

Taken from the mountain rocks at the construction site

21.5％

21.7％

Acrylic redispersible latex powder

National starch

FX7000

0.5％

0.5％

Superplasticizer

Basf

F10

0.1％

0.1％

Cellulose ether

Hercules

C9...

example 3、 comparative example 3

[0082] Weigh each component according to the proportions stated in the above table, and mix them uniformly to obtain filling and bonding material composition Example 3 and Comparative Example 3 of the present invention.

[0083] For performance testing, the composition example 3 was mixed with water at a ratio of 100:36 and stirred to form mortar example 3. The mortar is suitable for filling and bonding fine gaps less than 3mm. Meanwhile, Mortar Comparative Example 3 was obtained from Composition Comparative Example 3 with a water-cement ratio of 0.36.

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Abstract

The invention relates to a filling and binding material composition, which comprises the following components in percentage by weight: 20-55% of natural hydraulic setting lime, 40-78% of aggregate, 0.01-2% of polymer emulsion powder, 0.01-2% of thixotropic lubricant, 0-2% of water-retentive thickening agent and 0-2% of wood fiber. The components are mixed in proportion to obtain powder, and 10-40kg of water is evenly mixed with every 100 kg of powder. The invention can satisfy the special requirements for filling, binding and reinforcing bricks and stone materials in historical buildings. When being used for binding cracked positions, the filling and binding material composition has the performance similar to that of the bricks or stone at the constructed position. The invention has the advantages of environmental protection, high safety after curing, favorable reinforcing force for sealing and binding, good weatherability and good self-recovery property.

Description

technical field [0001] The present invention generally relates to the protection and restoration of cultural relics or historical buildings, and more specifically relates to a restoration material composition for masonry cultural relics and historical buildings. Background technique [0002] Masonry cultural relics (including petroglyphs, stone or clay sculptures, inscriptions, etc.) and historical buildings are an important part of Chinese cultural heritage, but under the influence of various natural factors and human activities, they often appear aging, void, etc. Drums, peeling, breakage, breakage and missing phenomena require constant maintenance, repair and protection. In these protection projects, suitable protective materials are required for bonding fractured components, filling hollow and damaged parts, and strengthening the structure of cultural relics. [0003] In the process of repairing these cultural relics, it is necessary to use filling and bonding materials...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/10E04G23/02
CPCC04B2111/00017C04B2111/2038C04B28/12C04B2111/00215Y02W30/91C04B14/28C04B18/26C04B24/26C04B2103/0085C04B2103/44C04B24/2623C04B24/2641C04B2103/46C04B24/383
Inventor 王金华张德兵胡源周霄
Owner 中国文化遗产研究院
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