Floor heating structural module and preparation method thereof

A technology for structural modules and floors, applied in the field of floor manufacturing, can solve the problems of complex construction, high cost, complex structure, etc., and achieve the effects of reducing maintenance difficulty, low price, and reducing initial investment.

Inactive Publication Date: 2017-10-24
NORTHEAST FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a floor heating structure module and a preparation method thereof to solve the pr

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0029] A preparation method of a floor heating structural module of the present invention comprises the following steps:

[0030] Step 1. Pretreatment: cut the plant straw into small pieces, impregnate it with alkali after hydrolysis, and then wash it with water to obtain a coarse material, and then send it to a disc mill for grinding and separation to obtain a plant fiber substrate;

[0031] Step 2. Drying: Take the plant fiber base material in the above step and add water to disperse it, then add cationic starch enhancer, stir evenly, add it to the mold, and perform dehydration treatment;

[0032] Step 3, molding: the above mold is pre-pressed and then dried and molded again to obtain the floor heating structural module.

[0033] Specifically, in step 1, the alkali used for impregnation is NaOH or KOH, the dosage is 2-10% of the dry plant straw mass, the impregnation temperature is 80-120° C., and the impregnation time is 30-90 minutes. The plant straw is corn straw, rice s...

Embodiment 1

[0039] A method for preparing a floor heating structural module of the present embodiment includes the following steps:

[0040] Step 1, pretreatment: cut the corn stalks into 1cm segments with a grass cutter, and decompose them through a hydraulic decomposer; then impregnate them with NaOH under normal pressure, and the amount of alkali used for impregnation is 2% of the quality of the dry plant fiber raw material, The impregnation temperature is 80°C, and the impregnation time is 90 minutes; the raw material impregnated with alkali is washed with water to obtain coarse material, which is sent to a disc mill for grinding and separation to obtain corn fiber base material.

[0041] Step 2. Drying: Add water to the corn fiber base material and disperse it, then add a cationic starch reinforcing agent equivalent to 1% of the mass of the corn fiber base material, stir evenly, and then add it to a prefabricated mold for dehydration treatment. The length and width of the prefabricate...

Embodiment 2

[0052] The difference between this example and Example 1 is that in step 1, the alkali used for impregnation is KOH, the amount used is 10% of the mass of the dry rice straw, the impregnation temperature is 120° C., and the impregnation time is 90 minutes. The plant straw is rice straw.

[0053] 1. Quality comparison

[0054] In this example, 0.333 kg of corn stalks can be used as raw material to obtain 1800 cm 3 The volumetric floor heating structure module has the characteristics of low density, light weight and high bulkiness. The thickness is 30mm and the density is 0.25g / cm 3 .

[0055] 2. Strength comparison

[0056] The floor heating structural module prepared in this example with a thickness of 30 mm and a length and width of 30×30 mm was used to measure the static compressive stress of 48.23 kN using a universal experimental tensile machine, which meets the performance requirements of building substrates.

[0057] 3. Comparison of molding process

[0058] In this...

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Abstract

The invention relates to a preparation method of a floor heating structural module. The preparation method comprises the following steps that firstly, preheating is conducted , specifically, plant straw is cut into small sections, the small sections are untwined hydraulically, dipped into alkali and washed, thus rough materials are obtained, then the rough materials are fed into a disc mill to be milled and separated, and plant fiber base materials are obtained; secondly, drying is conducted, specifically, the plant fiber base materials in the first step are taken, dispersed after water is added, evenly stirred after a cationic starch reinforcing agent is added and then added into a mould to be dehydrated; and thirdly, forming is conducted, specifically, the mould is pre-pressed and then subjected to drying-forming, and thus the floor heating structural module is obtained. Straw waste is used for replacing mixed powder coal-ash cement mortar, polystyrene foam plastic and phenolic foam plastic, so that on one hand, a new approach of resource utilization of the crop straw waste can be provided, and on the other hand, consumption of natural resources can be greatly reduced, and pollution to the ecological environment can be greatly lowered.

Description

technical field [0001] The invention relates to the technical field of floor manufacturing, in particular to a floor heating structural module and a preparation method thereof. Background technique [0002] The current floor heating structure module base material is commonly used in wet construction technology, also known as landfill floor heating. Its composition is to level the base structure of the reinforced concrete floor slab with cement mortar first, then lay an insulation layer of 20-30 mm and a metal heat-conducting layer (mostly aluminum foil reflective film) in sequence, and then install a hot water coil on the metal heat-conducting layer , and fixed together with the insulation layer, followed by pouring concrete as a buried pipe filling layer of 50-60mm, and finally paving a layer of cement mortar leveling layer of about 20mm, and laying floor tiles, yellow granite slabs or Wood floors and more. Cement mortar and concrete for the filling layer are not produced...

Claims

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Application Information

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IPC IPC(8): E04F15/10
CPCE04F15/102E04F2290/023
Inventor 岳金权郑丁源张阳阳赵银玲李士才
Owner NORTHEAST FORESTRY UNIVERSITY
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