A kind of preparation technology of building energy-saving heat-insulating material
Technical field
The invention belongs to material of construction preparing technical field, be specifically related to a kind of preparation technology of building energy-saving heat-insulating material.
Background technology
Along with the problems such as the global energy, shortage of resources and environmental pollution are changed increasingly deeply, economize the only way that energy resource-saving has become global economic development.The Chinese government also openly repeatedly represents in various officials occasion, energy-saving and emission-reduction, and Sustainable development is as the fundamental state policy of Chinese Economy Development.It is reported, building engineering energy consumption accounts for 25 ~ 40% of AND ENERGY RESOURCES CONSUMPTION IN CHINA total amount.Therefore, the energy-saving and emission-reduction carrying out building construction for carrying out energy-saving and emission-reduction that central authorities propose, the Economic development fundamental state policy of Sustainable development has very important meaning.
External wall outer insulation is one of important step in Building Energy Saving engineering, and the basic guarantee realizing external wall outer insulation is light heat insulation material.At present, the light heat insulation material used in exterior wall exterior insulation work is mainly the combustable organic material of representative with polyphenyl foam, there is serious disaster hidden-trouble.In recent years, the building fire that the use due to this kind of combustable organic lagging material causes is of common occurrence, has caused hundreds of millions of heavy economic lossess and most personal injury.Therefore, be badly in need of a kind of inorganic non-combustible light heat insulation material and substitute the polyphenyl foam material generally adopted at present.
Summary of the invention
The object of the present invention is to provide a kind of new preparation process of building energy-saving heat-insulating material.
The technical scheme adopted to realize the object of the invention is: a kind of preparation technology of building energy-saving heat-insulating material, and its concrete preparation process is as follows:
1) ordinary Portland cement, ceramic waste material, flyash and property-modifying additive are placed in ball mill and carry out ball milling, mix, obtained compound;
2) add water in compound step 1) obtained, stir, obtain mixed slurry;
3) whipping agent is joined step 2) obtained obtain in mixed slurry, rapid stirring is even, obtained foam cement slurry;
4) pour in mould by the foam cement slurry that step 3) is obtained, room temperature compacted under, then at high temperature fires, and Temperature fall cuts into goods, i.e. obtained building energy-saving heat-insulating material of the present invention.
Preferably, the property-modifying additive described in step 1) is methyl cellulose ether, and the whipping agent described in step 3) is hydrogen peroxide.
More preferably, ordinary Portland cement of the present invention, ceramic waste material, flyash and property-modifying additive, according to the mass fraction, ordinary Portland cement 40 ~ 60 parts, ceramic waste material 15 ~ 30 parts, 10 ~ 20 parts, flyash, property-modifying additive 5 ~ 10 parts, whipping agent 5 ~ 10 parts.
Further preferably, the ordinary Portland cement described in step 1), ceramic waste material, flyash and property-modifying additive, according to the mass fraction, ordinary Portland cement 48 ~ 60 parts, ceramic waste material 16 ~ 30 parts, 15 ~ 20 parts, flyash, property-modifying additive 8 ~ 10 parts, whipping agent 8 ~ 10 parts.
The present invention, relative to prior art, has following technological merit:
1) selected the industrial waste such as ceramic waste material, flyash in formula of the present invention, both reduced production cost, simultaneously alleviated again ceramic waste material, flyash stored up the problem of environmental pollution processing and bring.
2) the present invention selects ceramic waste material, flyash can improve the heat-insulating property of lagging material, have weathering resistance, corrosion-resistant, the features such as freeze-thaw-.
3) property-modifying additive that the present invention selects not only has the effect of steady bubble, also has the effect promoting cement and ceramic waste material and flyash rapid coagulation, sclerosis.
4) the whipping agent hydrogen peroxide selected of the present invention, water and oxygen is produced in foaming process, not polluted air and environment, the calcium chloride added, whiteruss has the effect of steady bubble, the silica flour adding different amount can regulate the pore size distribution of lagging material, thus is conducive to the quality product improving lagging material.
Embodiment
Below in conjunction with embodiment the present invention done and describe further.
embodiment 1
1) get ordinary Portland cement 48 kilograms, ceramic waste material 16 kilograms, 20 kilograms, flyash, property-modifying additive methyl cellulose ether 8 kilograms mixing, is placed in ball mill and carries out ball milling by compound, each raw material is mixed;
2) add 24 kilograms, water in compound step 1) obtained, stir, obtain mixed slurry;
3) 8 kilograms, whipping agent hydrogen peroxide is joined step 2) obtained obtain in mixed slurry, rapid stirring is even, obtained foam cement slurry;
4) foam cement slurry is poured in mould, room temperature compacted under, then under 800 DEG C of high temperature, fire 2 hours, Temperature fall, cut into goods, be i.e. obtained building energy-saving heat-insulating material of the present invention.
embodiment 2
1) get ordinary Portland cement 40 kilograms, ceramic waste material 30 kilograms, 15 kilograms, flyash, property-modifying additive methyl cellulose ether 10 kilograms mixing, is placed in ball mill and carries out ball milling by compound, each raw material is mixed;
2) add 20 kilograms, water in compound step 1) obtained, stir, obtain mixed slurry;
3) 5 kilograms, whipping agent hydrogen peroxide is joined step 2) obtained obtain in mixed slurry, rapid stirring is even, obtained foam cement slurry;
4) foam cement slurry is poured in mould, room temperature compacted under, then under 700 DEG C of high temperature, fire 3 hours, Temperature fall, cut into goods, be i.e. obtained building energy-saving heat-insulating material of the present invention.
embodiment 3
1) get ordinary Portland cement 60 kilograms, ceramic waste material 15 kilograms, 10 kilograms, flyash, property-modifying additive methyl cellulose ether 5 kilograms mixing, is placed in ball mill and carries out ball milling by compound, each raw material is mixed;
2) add 30 kilograms, water in compound step 1) obtained, stir, obtain mixed slurry;
3) 10 kilograms, whipping agent hydrogen peroxide is joined step 2) obtained obtain in mixed slurry, rapid stirring is even, obtained foam cement slurry;
4) foam cement slurry is poured in mould, room temperature compacted under, then under 900 DEG C of high temperature, fire 1 hour, Temperature fall, cut into goods, be i.e. obtained building energy-saving heat-insulating material of the present invention.
embodiment 4
Embodiment 4 and embodiment 1 are only that the component of property-modifying additive is different, namely the property-modifying additive in embodiment 4 is: by mass percentage, comprise: methyl cellulose ether 40 ~ 60%, inorganic salts compound 20 ~ 40%, calcium stearate 10 ~ 30%, latex powder 5 ~ 10%.Its preparation method is: joined by the methyl cellulose ether of 40 ~ 60% in the mixture of the calcium stearate of 10 ~ 30% and the inorganic salts compound of 20 ~ 40%, ball milling 1 ~ 3 hour; Continue the latex powder adding 5 ~ 10%, ball milling 0.5 ~ 2 hour.
embodiment 5
Embodiment 4 and embodiment 1 are only that the component of whipping agent is different, and the whipping agent namely in embodiment 4 is: by mass percentage, comprising: hydrogen peroxide 75 ~ 85%, calcium chloride 10 ~ 20%, whiteruss 5 ~ 15%.This whipping agent is obtained by following steps: 1) mixed by the calcium chloride of the whiteruss of 5 ~ 15% and 10 ~ 20%, ball milling 1 ~ 3 hour, obtained mixture; 2) add in the hydrogen peroxide of 75 ~ 85% by the mixture that step 1) obtains, rapid stirring evenly.
It should be noted that, the embodiment described in this specification sheets, its formula, title that technique is named etc. can be different.The equivalence that structure, feature and the principle of every foundation described in inventional idea of the present invention are done or simple change, be included in the protection domain of patent of the present invention.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described embodiment; only otherwise depart from structure of the present invention or surmount the scope that this claim defines, all protection scope of the present invention is belonged to.