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Environment-friendly flame-retardant thermal insulation mortar adopted with rice hulls

A thermal insulation mortar, flame retardant technology, applied in the field of building materials, can solve the problems of rising overall project cost, low safety performance, high temperature resistance, etc., and achieve the effect of low cost, low material cost and small self-weight

Inactive Publication Date: 2012-09-12
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Rubber powder polystyrene particle insulation mortar and inorganic vitrified microbead insulation mortar have superior thermal insulation properties. The engineering insulation layer using rubber powder polystyrene particle insulation mortar is relatively low in cost, but it is not resistant to high temperature, flammable, and has low safety performance. high
Inorganic vitrified bead insulation mortar is relatively safe because it is composed of non-combustible inorganic materials, but its high cost will lead to an increase in the overall cost of the project

Method used

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  • Environment-friendly flame-retardant thermal insulation mortar adopted with rice hulls
  • Environment-friendly flame-retardant thermal insulation mortar adopted with rice hulls
  • Environment-friendly flame-retardant thermal insulation mortar adopted with rice hulls

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Example 1, an environmentally friendly flame-retardant thermal insulation mortar mixed with rice husk, according to 42.5 grade ordinary Portland cement 100, sand 150, rice husk 10, fly ash 10, slag powder 15, redispersible latex powder 1 , Polycarboxylate water reducer 0.05, CMC-g-PMMA 0.5 weight ratio prepared. According to 60% of the total dry weight of the mortar, add water and stir evenly to obtain the desired product. The performance test results are shown in Table 1.

Embodiment 2

[0053] Example 2, an environmentally friendly flame-retardant thermal insulation mortar mixed with rice husk, according to 42.5 grade ordinary Portland cement 100, sand 400, rice husk 30, fly ash 35, slag powder 40, redispersible latex powder 4 , Naphthalene-based water reducer 2.0, CMC-g-PMMA 5 weight ratio prepared. According to 35% of the total dry weight of the mortar, add water and stir evenly to obtain the desired product. The performance test results are shown in Table 1.

Embodiment 3

[0054] Example 3, an environmentally friendly flame-retardant thermal insulation mortar mixed with rice husk, according to 32.5 grade ordinary Portland cement 100, sand 200, rice husk 15, fly ash 30, slag powder 20, redispersible latex powder 3 , Naphthalene-based water reducer 1.0, CMC-g-PMMA 1 weight ratio prepared. According to 40% of the total dry weight of the mortar, add water and stir evenly to obtain the desired product. The performance test results are shown in Table 1.

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Abstract

The invention belongs to the technical field of building materials, and particularly relates to an environment-friendly flame-retardant thermal insulation mortar adopted with rice hulls. The preparation method includes taking ordinary Portland cement, coal ash and slag powder as cementing materials and the rice hulls and sand as fine aggregates; adding a water reducing agent, redispersible latex powder and a graft copolymer (CMC-g-PMMA) of carboxymethyl cellulose and methyl methacrylate as plant fiber surface treating agents. The environment-friendly flame-retardant thermal insulation mortar adopted with the rice hulls has the advantages of being simple in construction, low in cost, small in self-weight, environment-friendly and energy-saving due to the full usage of crop waste, good in economical and social benefits, provided with performances of damp and moth proofing, frame retardance and thermal insulation, and suitable for building and plastering construction of wall materials.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to an environment-friendly flame-retardant thermal insulation mortar mixed with rice husks. Background technique [0002] Insulation mortar is a kind of ready-mixed dry powder mortar made of various light materials as aggregates, cement as cement, mixed with some modified additives, and mixed by the production enterprise. It is mainly used for building exterior wall insulation, and has the advantages of convenient construction and good durability. At present, there are two main types of thermal insulation mortar on the market: 1) inorganic thermal insulation mortar (vitrified microbead fireproof thermal insulation mortar, composite aluminum silicate thermal insulation mortar); 2) organic thermal insulation mortar (rubber powder polystyrene particle thermal insulation mortar). [0003] Rubber powder polystyrene particle insulation mortar and inorganic vitrifie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B18/30
CPCY02W30/91
Inventor 孙振平张丽华陈明刘警
Owner TONGJI UNIV
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