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Method for preparing straw insulation board

A technology of thermal insulation board and straw, which is applied in sustainable waste treatment, solid waste management, climate sustainability and other directions, can solve the problems of high construction cost, high building energy consumption, unusable crop straw, etc., and achieves low production cost, Good volume stability and the effect of shortening the hardening time

Inactive Publication Date: 2012-09-26
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to develop a low-cost, easy-to-manufacture, mechanical performance, fire-resistant, and durable construction solution for the problems of high energy consumption and high construction costs of traditional village buildings, and a large amount of crop stalks cannot be used. Good, as well as straw insulation boards with good crack resistance and thermal performance, provide a kind of building wall material with excellent performance for the vast rural areas

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Adopt the following proportioning ratio material in the present embodiment:

[0040] Calcined desulfurized gypsum: 700kg

[0041] Shuangfei Powder: 260kg

[0042] 42.5 grade ordinary Portland cement: 35kg

[0043] Redispersible latex powder (EVA): 3kg

[0044] Saponin nonionic surfactant: 2kg

[0045] Corn straw powder: 2m 3

[0046] Vitrified beads: 1m 3

[0047] Water: 1200kg

[0048] Prepared by following steps:

[0049] a. Stir and mix the calcined desulfurized gypsum, Shuangfei powder, redispersible latex powder and 42.5 grade ordinary Portland cement in the above mass parts ratio, and form an inorganic gelling agent after adding water and mixing; b. Mix the above mass parts The proportion of saponin nonionic surfactant, add water according to 20 ~ 30 times the weight of the surfactant, mix and stir until a large number of bubbles are generated for use; c, the mixture prepared in step b is added to step a In the obtained inorganic gelling agent, stir and ...

Embodiment 2

[0051] Adopt the following proportioning ratio material in the present embodiment:

[0052] Calcined desulfurized gypsum: 750kg

[0053] Shuangfei Powder: 210kg

[0054] 42.5 grade ordinary Portland cement: 30kg

[0055] Redispersible latex powder (EVA): 5kg

[0056] Saponin nonionic surfactant: 5kg

[0057] Corn straw powder: 3m 3

[0058] Vitrified beads: 1m 3

[0059] Water: 1400kg

[0060] The specific preparation steps are the same as in Example 1.

Embodiment 3

[0062] Adopt the following proportioning ratio material in the present embodiment:

[0063] Calcined desulfurized gypsum: 800kg

[0064] Shuangfei Powder: 154kg

[0065] 42.5 grade ordinary Portland cement: 30kg

[0066] Redispersible latex powder (EVA): 8kg

[0067] Saponin nonionic surfactant: 8kg

[0068] Corn straw powder: 3m 3

[0069] Vitrified beads: 2m 3

[0070] Water: 1550kg

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

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PUM

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Abstract

The invention discloses a method for preparing a straw insulation board. The straw insulation board is prepared by the steps of string and mixing calcination desulfurization gypsum, calcium carbonate heavy, ordinary Portland cement, latex powder, surfactant, crop straw powder, vitrified micro bubbles, water and the like which are used as raw materials, pouring, molding, curing and the like. The straw insulation board prepared by the method has the advantages of low preparation cost, contribution to production, high mechanical property, fire resistance and durability, and high crack resistanceand thermal property, and the like, and provides building wall materials with high performance for vast rural areas.

Description

technical field [0001] The invention belongs to the technical field of village and town building materials and solid waste recycling, and in particular relates to a method for preparing a thermal insulation board used for wall enclosure and thermal insulation materials of village and town buildings. Background technique [0002] In the past, crop straws were used in the construction of villages and towns mainly for raw earth buildings such as rammed earth walls. Traditional raw soil materials are mainly prepared from clay and crop straws. The flocculation structure characteristics of clay are used to make raw soil materials produce strength after drying, and at the same time The fiber toughening properties of straw are used to improve the crack resistance of raw soil materials. However, with the rapid development of the rural economy, the demand of rural residents for housing is also increasing. The building materials used to build houses in rural areas are mainly clay brick...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04C2/16C04B28/14C04B18/24
CPCC04B28/144Y02W30/91C04B7/02C04B14/24C04B14/28C04B18/24C04B20/04C04B24/26C04B40/0028C04B2103/40
Inventor 贾兴文马英钱觉时张亚杰唐祖全范英儒腾跃张立敏
Owner CHONGQING UNIV
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