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Coating composition for fire retardant and sound absorption

A composition and coating technology, applied in the direction of fireproof coatings, radiation-absorbing coatings, cement coatings, etc., can solve the problems of dust generated by inorganic fibers, troublesome operating procedures, etc., and achieve the effect of avoiding large cracks and good fireproof performance

Active Publication Date: 2006-08-16
庆东一公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While they can all provide some sound absorption and insulation, past experience has shown that inorganic fibers are a dust hazard and should be handled with caution
Moreover, the conventional sound-absorbing materials require cumbersome procedures, such as hardening treatment, to obtain ideal strength after being sprayed.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Evaluation of the physical properties of the composition by the ratio of binder to aggregate

[0051] Perlite, ground expanded polystyrene, cement and gypsum were mixed according to the amounts given in Table 1 below. In this mixture, 4% by weight of CSA compound, 5% by weight of quicklime, 6% by weight of pulp and appropriate amount of other additives were added, and an appropriate amount of water was added to make a slurry. This mud was applied on the H-shaped steel frame (300×300×10×20mmt, 2000mm long).

[0052] The coating material is sprayed onto the steel frame at a vertical distance of 30cm from the steel structure frame at 2m3 / hour. The prepared samples were left for 4 weeks for full testing. Measure the thickness and density of the coating material (covering layer), and observe its sinking, peeling and cracking conditions.

[0053] In order to prepare a simple sample for evaluating the heat resistance performance, a temperature sensor was connected to a stee...

Embodiment 2

[0059] Evaluation of physical properties when using CAS compounds

[0060] The CAS compound and quicklime were mixed in the amounts given in Table 2 below. Add appropriate amount of other additives to the mixture, add appropriate amount of water to make mud. Then, in the same manner as in Example 1, the mud was coated on the steel frame and left for 4 weeks. The length and heat resistance of the obtained samples were measured.

[0061] No.

Content (wt%)

length

Variety

(×10 4 )

place

time

(sky)

time

(min)to

649°C

Performance

CSA

compound

quicklime

Perlite

Blast-furnace

slag cement

plaster

pulp

1

0

0

20

35

40

5

-25

5

47

no crack

2

1

1

20

33

40

5

-15

4

48

no crack

3

2...

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PUM

PropertyMeasurementUnit
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Abstract

A fire-proofing and noise-absorbing coating composition consists of light concrete material 3-50wt%, binder 30-80wt%, heat-absorbing and shrinkage-resistant material 2-30wt%, common or carbonizing noise-absorbing fiber containing flame delayed-action activator 2-20wt% and additive 0.1-30wt%. It is characterized by taking at least one kind chosen from CSA compound, burnt lime and calcined alumite as raw material. It can decrease dry shrinkage, eliminate crack and fall out. It can be used for steel frame surface, wall or ceiling of buildings.

Description

technical field [0001] The present invention relates to a fire-proof and sound-absorbing coating composition, in particular to a fire-proof and sound-absorbing coating composition containing gypsum, cement and porous lightweight aggregate, which can be applied to the steel structure surface of a building to avoid weakening of its strength and avoid It is weakened by the high heat of a fire, or applied to the walls or ceilings of buildings for soundproofing. Background technique [0002] With the development of construction technology, buildings become taller and larger, and steel structures are used instead of concrete structures. The advantage of steel structure is that it is easy to build and labor-saving. However, when the steel structure is used in a large high-rise building, in the event of a fire, the flames and toxic gases caused by the internal materials of the building will cause casualties. Moreover, when a building is on fire, the strength of its steel structure...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/18C09D5/32C09D1/06
Inventor 吴石虎柳基鸿裴乘训
Owner 庆东一公司
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