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Method for preparing micro expanded inorganic heat insulation mortar

An inorganic thermal insulation mortar and micro-expansion technology, which is applied in the field of building energy-saving thermal insulation materials, can solve the problems such as the failure to effectively solve the problems of the broken rate of vitrified microbeads, the increase of the dry density and thermal conductivity of thermal insulation mortar, and the decrease of thermal performance of thermal insulation systems. , to achieve the effect of low breakage rate, high fire resistance level and good thermal insulation performance

Active Publication Date: 2011-04-13
CHONGQING SIBEIKEN ENERGY SAVING TECH DEV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the surface hydrophobic technology is still immature, and the feasibility is poor. It cannot effectively solve the common problems of high crushing rate during the mixing process of vitrified microbeads and high water absorption after crushing, which leads to the failure of the hydrophobic process and makes the heat preservation Mortar dry density and thermal conductivity increased significantly
In addition, the vitrified microbead thermal insulation mortar adopts wet operation during construction, which affects the environment of the construction site, and the mortar will have a large drying shrinkage after being applied to the wall, which will cause cracks in the thermal insulation mortar, make water easy to leak, and cause thermal insulation system heat. Decreased work performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] The admixture of the material component and its compounding ratio adopted in the present embodiment is as follows:

[0045] 42.5 grade ordinary Portland cement: 600kg

[0046] Desulfurization ash: 300kg

[0047] Shuangfei Powder: 77kg

[0048] Redispersible latex powder (EVA): 15kg

[0049] Hydroxypropyl methyl cellulose ether (HPMC): 3kg

[0050] Wood fiber: 3kg

[0051] Polypropylene fiber: 2kg

[0052] Saponin nonionic surfactant: 6kg

[0053] Lauryl dimethyl amine oxide foam stabilizer: 1kg

[0054] Water: 600kg

[0055] Vitrified beads: 6m 3

[0056] And adopt the following preparation steps to prepare: a. Stir and mix the Portland cement, desulfurization ash, double fly powder, redispersible latex powder, hydroxypropyl methyl cellulose ether, wood fiber and polypropylene fiber in the above ratio Evenly, add some proportion of water and stir to form a fluid slurry for later use; b, add the surfactant and foam stabilizer in the above ratio, add water weigh...

Embodiment 2

[0059] The admixture of the material component and its compounding ratio adopted in the present embodiment is as follows:

[0060] 42.5 grade ordinary Portland cement: 700kg

[0061] Desulfurization ash: 225kg

[0062] Shuangfei Powder: 50kg

[0063] Redispersible latex powder (EVA): 15kg

[0064] Hydroxypropyl methyl cellulose ether (HPMC): 4kg

[0065] Wood fiber: 3kg

[0066] Polypropylene fiber: 3kg

[0067] Saponin nonionic surfactant: 8kg

[0068] Lauryl dimethyl amine oxide foam stabilizer: 1.5kg

[0069] Water: 900kg

[0070] Vitrified beads: 8m3

[0071] The specific preparation steps are the same as in Example 1 in this example.

[0072]

Embodiment 3

[0074] The admixture of the material component and its compounding ratio adopted in the present embodiment is as follows:

[0075] 42.5 grade ordinary Portland cement: 700kg

[0076] Desulfurization ash: 170kg

[0077] Shuangfei powder: 100kg

[0078]Redispersible latex powder (EVA): 18kg

[0079] Hydroxypropyl methyl cellulose ether (HPMC): 5kg

[0080] Wood fiber: 4kg

[0081] Polypropylene fiber: 3kg

[0082] Saponin nonionic surfactant: 7kg

[0083] Lauryl dimethyl amine oxide foam stabilizer: 1.5kg

[0084] Water: 1100kg

[0085] Vitrified beads: 10m 3

[0086] The specific preparation steps are the same as in Example 1 in this example.

[0087]

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Abstract

The invention discloses a method for preparing micro expanded inorganic heat insulation mortar. Materials such as common silicate cement, desulfuration ash, calcium carbonate powder, re-dispersible latex powder, hydroxypropyl methyl cellulose ether, wood fiber, polypropylene fiber, surfactant, foam stabilizer, water, vitrified micro bubbles and the like are adopted; and the mortar is obtained by adopting the steps of stirring, mixing, shaping, curing and the like. The method has the advantages of low cost, early micro expansion, low later linear shrinkage rate, fire resistance, durability and the like, is easy to construct, and achieves good effect of preparing the I-type building heat insulation mortar by using the III-class vitrified micro bubbles.

Description

[0001] technical field [0002] The invention belongs to the technical field of building energy-saving thermal insulation materials, and in particular relates to an inorganic thermal insulation mortar material used for building exterior walls. [0003] Background technique [0004] Building envelope insulation is usually divided into external wall thermal insulation system and external wall thermal insulation system. At present, new buildings mainly use external wall thermal insulation system. There are mainly four types of building external wall external thermal insulation systems: rubber powder polystyrene particle external wall external thermal insulation system, expanded polystyrene board thin plaster external wall external thermal insulation system, spray foamed polyurethane external wall external thermal insulation system, expanded vitrified micro Bead insulation mortar building insulation system. [0005] Rubber powder polystyrene granules are composed of rubber pow...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04
CPCC04B28/04Y02W30/91C04B14/24C04B14/28C04B16/0633C04B18/08C04B18/248C04B24/26C04B24/383C04B38/02C04B40/0028C04B2103/40
Inventor 熊凤鸣贾兴文周俊王智康毅熊永林
Owner CHONGQING SIBEIKEN ENERGY SAVING TECH DEV
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