Carboxypoly ose mixed resin mortar for strengthening concrete

A carboxymethyl polysaccharide, repair and reinforcement technology, used in building maintenance, construction, building construction, etc.

Inactive Publication Date: 2005-05-11
M&S IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The surface material of concrete buildings composed of polyurethane resin and a small amount of stabilizer, defoamer, etc. has been recorded in Japanese Patent Publication No. Showa 64-9273 (publication date: 1989.1.12). The strength of this material itself Although the contact performance is excellent, when it is used in concrete with cement as the main material, due to the difference in elastic coefficient and thermal expansion coefficient, when the temperature changes, it will naturally separate and fall off from the concrete interface after several years. , when a fire occurs, it also generates toxic gases

Method used

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  • Carboxypoly ose mixed resin mortar for strengthening concrete

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Cement 25 weight ratio

[0036] Alumina cement 1 weight ratio

[0037] Silica sand 45 weight ratio

[0038] Limestone (ionic specification 60μm) 20% by weight

[0039] Carboxymethyl polysaccharide 4 weight ratio

[0040] Powder type redispersible synthetic resin 5 weight ratio

[0041] The above raw materials were mixed with a gravity-free powder mixer for 6 minutes to obtain a uniformly mixed powder composition. The prepared powder composition was mixed with 100% by weight of water and 19% by weight with an electric mixer.

[0042] When mixing, use a mixer specified in KS L 5109 (Mechanized Mixing of Rapid Cement or Mortar) to mix uniformly for 3 minutes, and use this mixture to make a test body of 5 cm x 5 cm x 5 cm.

[0043] One day after the production of the test body, it was stored at a temperature of 20°C and a humidity of 100% for 24 hours, and then maintained at a temperature of 20°C and a humidity of 50-70% for 28 days. The compressive strength was measur...

Embodiment 2

[0047] Cement 30 weight ratio

[0048] Alumina cement 6 weight ratio

[0049] Silica sand 41 weight ratio

[0050] Limestone (ionic specification 60μm) 10 weight ratio

[0051] Carboxymethyl polysaccharide 3 weight ratio

[0052] Powder type redispersible synthetic resin 10% by weight

[0053] Above raw material is processed into powder composition by the method for embodiment 1, and the powder composition 100 weight ratio of preparation is mixed with the water of 19 weight ratio together with electric stirrer. When mixing, use a mixer specified in KS L 5109 (Mechanized Mixing of Rapid Cement or Mortar) to mix uniformly for 3 minutes, and use this mixture to make a test body of 5 cm x 5 cm x 5 cm.

[0054] One day after the test body was made, it was stored for 24 hours under constant temperature and humidity conditions of 20°C and 100% humidity, and then maintained for 28 days at a temperature of 20°C and a humidity of 50-70%. KS L 5015 (compressive strength test method ...

Embodiment 3

[0059] Cement 35 weight ratio

[0060] Alumina cement 7 weight ratio

[0061] Silica sand 43 weight ratio

[0062] Limestone (ionic specification 60μm) 8 weight ratio

[0063] Carboxymethyl polysaccharide 2 weight ratio

[0064] Powder type redispersible synthetic resin 5 weight ratio

[0065] Above raw material is processed into powder composition by the method for embodiment 1, and 100 weight ratios of prepared powder composition are mixed with the water of 19 weight ratios with electric type mixer. When mixing, use a mixer specified in KS L 5109 (Mechanized Mixing of Rapid Cement or Mortar) to mix uniformly for 3 minutes, and use this mixture to make a test body of 5 cm x 5 cm x 5 cm.

[0066] One day after the production of the test body, it was stored at a temperature of 20°C and a humidity of 100% for 24 hours, and then maintained at a temperature of 20°C and a humidity of 50-70% for 28 days. The compressive strength was measured according to KS L 5015 (compressive ...

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Abstract

A carboxymethyl glycan mixed resin grout for fixing and enhancing concrete consists of cement 10-50wt%, alumina cement 1-15wt%, silica sand 40-60wt%, lime rock 5-20wt%, carboxymethyl glycan 0.05-5wt% and powdery re-dispersing synthetic resin 1-10wt%. Its advantages include good combination and waterproof performance.

Description

technical field [0001] The present invention relates to a kind of carboxymethylpolysacchaide (CarboxyMethylpolysacchaide) mixed resin mortar used for concrete repair and reinforcement, especially the present invention can be used in civil engineering such as bridge, coastal engineering, dam, road construction, and can also be used in apartment, commercial It is used in all buildings such as buildings and parking lots. Background technique [0002] Concrete has the characteristics of condensation and hydration reaction due to the main material cement, and its life is semi-permanent. The reason is that as long as there is an appropriate amount of water in the concrete building, it will continue to react and increase its strength. This hydration reaction can also be carried out with the water inside the concrete or the capillary water and the humidity in the atmosphere. However, although concrete has the above-mentioned self-contained continuous strength-up function of cement,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B22/08C04B24/38C04B28/02E04G23/02
Inventor 崔釜焕朴东勋尹柱现
Owner M&S IND
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