Unlock instant, AI-driven research and patent intelligence for your innovation.

Fly-ash-base geopolymer rice hull thermal-insulation mortar

A technology of thermal insulation mortar and fly ash, applied in the field of building materials, can solve the problems of low utilization rate of rice husk, environmental pollution, resource waste, etc., and achieve the effects of light weight, improved thermal insulation performance, and low production cost

Inactive Publication Date: 2013-12-18
WENZHOU UNIVERSITY
View PDF1 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although my country's rice husk resources are very rich, the utilization rate of rice husks in my country is low, which causes a great waste of resources when used as fuel in rural areas, and also causes great pollution to the environment

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Raw material ratio:

[0024] The mass fraction of each raw material in the dry powder mixture:

[0025] 20 parts of rice husk powder;

[0026] 48 parts of fly ash;

[0027] 20 parts of silica fume;

[0028] 8 parts of solid sodium silicate;

[0029] 4 parts of industrial pure sodium hydroxide;

[0030] 0.24 parts of sodium tripolyphosphate.

[0031] Concrete preparation process is as follows:

[0032] (1) Dry powder mixture: 20 parts of rice husk powder, 48 parts of fly ash, 20 parts of silica fume, 8 parts of solid sodium silicate, 4 parts of industrial pure sodium hydroxide, 0.24 part of sodium tripolyphosphate, mix and stir for 5 minutes. uniform to obtain a dry powder mixture;

[0033] (2) Mix the dry powder mixture with water at a weight ratio of 5:1, stir for 10 minutes, and obtain a slurry with a consistency of 70 mm;

[0034] (3) Pour the slurry into the 70.7mm×70.7mm×70.7mm and 300mm×300mm×30mm test molds respectively, place them in the room at room tem...

Embodiment 2

[0038] Raw material ratio:

[0039] The mass fraction of each raw material in the dry powder mixture:

[0040] 30 parts of rice husk powder;

[0041] 42 parts of fly ash;

[0042] 17.5 parts of silica fume;

[0043] 7 parts of solid sodium silicate;

[0044] 3.5 parts of industrial pure sodium hydroxide;

[0045] Sodium tripolyphosphate 0.30 parts.

[0046] Concrete preparation process is as follows:

[0047] (1) Dry powder mixture: 30 parts of rice husk powder, 42 parts of fly ash, 17.5 parts of silica fume, 7 parts of solid sodium silicate, 3.5 parts of industrial pure sodium hydroxide, 0.30 part of sodium tripolyphosphate, and mix for 5 minutes. uniform to obtain a dry powder mixture;

[0048] (2) Mix the dry powder mixture with water at a weight ratio of 4:1, stir for 10 minutes, and obtain a slurry with a consistency of 72 mm;

[0049] (3) Pour the slurry into the 70.7mm×70.7mm×70.7mm and 300mm×300mm×30mm test molds respectively, place them in the room at room tem...

Embodiment 3

[0053] Raw material ratio:

[0054] The mass fraction of each raw material in the dry powder mixture:

[0055] 40 parts of rice husk powder;

[0056] 36 parts of fly ash;

[0057] 15 parts of silica fume;

[0058] 6 parts of solid sodium silicate;

[0059] 3 parts of industrial pure sodium hydroxide;

[0060] Sodium tripolyphosphate 0.32 parts.

[0061] Concrete preparation process is as follows:

[0062] (1) Dry powder mixture: 40 parts of rice husk powder, 36 parts of fly ash, 15 parts of silica fume, 6 parts of solid sodium silicate, 3 parts of industrial pure sodium hydroxide, 0.36 part of sodium tripolyphosphate, mix and stir for 5 minutes. uniform to obtain a dry powder mixture;

[0063] (2) Mix the dry powder mixture with water at a weight ratio of 2.5:1, stir for 10 minutes, and obtain a slurry with a consistency of 68 mm;

[0064] (3) Pour the slurry into the 70.7mm×70.7mm×70.7mm and 300mm×300mm×30mm test molds respectively, place them in the room at room temp...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
specific surface areaaaaaaaaaaa
compressive strengthaaaaaaaaaa
Login to View More

Abstract

The invention provides a fly-ash-base geopolymer rice hull thermal-insulation mortar which comprises a dry powder mixture and water in a weight ratio of 5:(1-2), wherein the dry powder mixture comprises the following components in parts by weight: 20-40 parts of rice hull powder, 36-48 parts of fly ash, 15-20 parts of silica fume, 6-8 parts of sodium silicate solid, 3-4 parts of commercially pure sodium hydroxide and 0.24-0.32 parts of sodium tripolyphosphate. When in use, the dry powder mixture and water are mixed to a consistency according to the construction requirement, and then finishing construction can be performed. The thermal-insulation mortar has the advantages of light volume weight, favorable thermal insulation property and higher compression strength; and the heat conductivity coefficient is 0.08-0.18 W / m.K. The thermal-insulation mortar fully utilizes the waste rice hull powder generated by rice processing and the solid waste fly ash of heat power stations, thereby changing wastes into valuable substances, implementing waste recycling, fully displaying the characteristics of the rice hull powder, making the best use of everything and greatly enhancing the thermal insulation property of the wall. The mortar has the characteristics of low production cost, no environment pollution, energy saving and environmental protection, and is harmless to the human body.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a fly ash-based geological polymer rice husk thermal insulation mortar. Background technique [0002] In recent years, the application of thermal insulation materials in the field of building energy conservation in my country has made great progress. Before that, expanded polystyrene board, extruded polystyrene board and foamed polyurethane were mainly used for internal and external wall and external insulation in most areas. However, organic thermal insulation materials are gradually eliminated because they cannot meet the fire resistance requirements. Therefore, the research and development of a new type of inorganic thermal insulation mortar, which uses lightweight thermal insulation materials as aggregates and cement as the cementitious material, has received extensive attention. However, the production of traditional Portland cement is a high energy consumption and high res...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/26C04B18/30
CPCY02P40/10Y02W30/91
Inventor 谢子令陶鑫周华飞杨克家
Owner WENZHOU UNIVERSITY