CN100542988C - A kind of hollow heat-insulation building block and preparation method thereof - Google Patents
A kind of hollow heat-insulation building block and preparation method thereof Download PDFInfo
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- CN100542988C CN100542988C CNB200610140608XA CN200610140608A CN100542988C CN 100542988 C CN100542988 C CN 100542988C CN B200610140608X A CNB200610140608X A CN B200610140608XA CN 200610140608 A CN200610140608 A CN 200610140608A CN 100542988 C CN100542988 C CN 100542988C
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- JIFPTBLGXRKRAO-UHFFFAOYSA-K aluminum;magnesium;hydroxide;sulfate Chemical compound [OH-].[Mg+2].[Al+3].[O-]S([O-])(=O)=O JIFPTBLGXRKRAO-UHFFFAOYSA-K 0.000 claims abstract description 34
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Abstract
The invention discloses a kind of novel hollow insulation building block and preparation method thereof.Hollow heat-insulation building block of the present invention is mainly made by the raw material of following weight part: acidify magaldrate lagging material additive 0.5-1.5 part and pearlstone 1-3 part.The preparation method of hollow heat-insulation building block of the present invention may further comprise the steps: 1) take by weighing each raw material by following weight part: acidify magaldrate lagging material additive 0.5-1.5 part and pearlstone 1-3 part; 2) above-mentioned raw materials is mixed after, be incorporated as the water of mixture total weight amount 30-40%, use traditional brickmaking technology pressing to make holllow building block, do not calcine and be drying to obtain.The prepared hollow heat-insulation building block of the inventive method is a kind of unburned product, after the slurry drying, forms brilliant knot lattice, low energy is born the pressure of 1.0MPa, the pressure that high energy bears is up to 2.0MPa, and its thermal conductivity is 8 times that common brick hinders warm ability at 0.08-0.1/mk.Insulating brick of the present invention is energy-conservation, resistance sound, insulation, fire prevention, pressure-bearing, is a kind of building thermal insulation material of excellent performance.
Description
Technical field
The present invention relates to a kind of material of construction, relate in particular to hollow heat-insulation building block for building and preparation method thereof, belong to building material field.
Background technology
Defective that adopts at present the lagging material of styrofoam, compact substance styrofoam and thermal insulation mortar (cement mixing granular polystyrene) all to exist technically on the insulation market self can't to overcome and part not fully up to expectations.
Styrofoam is the organic materials that extracts from oil.Temperature influence sensitivity, molecule activity are very active.Heat resisting temperature has only 70 ℃, and when experiment recorded 70 ℃, size changing rate reached 5% after 48 hours.Area, Northeast China outdoor temperature in winter is-45 ℃～-20 ℃, and southern area metope in summer temperature can reach 70 ℃～75 ℃.The styrofoam material is subjected to the acute variation of outside air temperature, just can't change by nature to expand and warpage, and above digital proof, warpage, cracking are unavoidably.Use styrofoam to go wrong and be inevitable, the time length that goes wrong depends on the bonding object, selects for use ether of cellulose and vinylformic acid as cohesive body usually, the mixed cement mortar.These three kinds of materials all have aging time and thermal conductivity, can not stop warpage, the cracking of styrofoam, also can further aggravate the conduction of temperature.The styrofoam construction is gone up and is adopted rivet firmly to go up wall in addition.This constructional method makes styrofoam and metope produce the hollowing distance.The benefit that has distance is to a certain extent to having stoped the inside conduction of temperature.The problem that faces is, in case the styrofoam warpage, hot and cold air-flow just enters the hollowing distance, becomes hot and cold air-flow storing spot, is stored into certain value, and interior wall just becomes pontic, has destroyed indoor isoperibol.The person's character that can not change styrofoam just can not solve warpage, rimose problem.Also to be the Chinese and foreign department scholar be difficult to the problem of capturing so far using on the styrofoam for this.Main raw material vinylbenzene and the butane produced as styrofoam can produce obnoxious flavoures such as a large amount of benzene and carbon monoxide when burning.In case blaze up, the people sucks this kind obnoxious flavour, just loses self-saving ability, finally gets killed.The living environment of China is quite intensive again, in case produce burning, will cause large-area loss of life and personal injury, and the people are lived in unsafe hidden danger.Polyphenyl is the extract in the oil, and the lagging material of China all adopts styrofoam, Imported oil in a large number, and then cause worldwide rise in oil price; The costliness that also can cause the styrofoam material simultaneously conversely.Cause outside a large amount of loss of foreign exchange, be incubated, cause the insulation plan as a result in the whole nation can't smooth implementation, the insulation policy can't be prosecuted to the end, midway day folding as independent dependence styrofoam.With the demand degree of Chinese market, the oil reserve in the world still can't satisfy.
Thermal insulation mortar only adds the polyphenyl particle by cement and adds caking agent and mix.The thermal conductivity of cement is high to 1-2w/mk, and the parcel thermal conductivity is the granular polystyrene of 0.042-0.043w/mk, and formed cement and polystyrene mortar thermal conductivity is 0.095-0.098w/mk.Show via Shanghai test center of capital construction commission test result, use the thermal insulation mortar thermal conductivity at 0.1-0.2w/mk on the existing market, do not meet the standard of lagging material thermal conductivity below 0.06w/mk of national requirements.Because there is little conduction in the thermal conductivity height of cement between the cement glue.Exist little conduction to be meant that promptly hot and cold air-flow gathers earlier between the cement glue in distance element, cement can also produce certain barriering effect as the filtering net of current when gathering beginning, gathering of certain hour, body of wall stores hot and cold air and reaches certain value, make interior wall become hot and cold pontic, hot and cold air-flow importing is indoor, and it is indoor to cause outdoor hot and cold flow conductance to be advanced, and has finally destroyed the constant temperature of the interior space.
Existing lagging material can not really reach the insulation requirement really.(above Haiti district is an example, and the energy-conservation requirement of secondary reaches 55.6% energy-saving index; The three grades of energy-conservation requirements in Beijing area reach 65%).Along with the standard day by day of the energy-conservation cause of country and perfect, the generally raising of energy-conservation requirement.The energy-conservation requirement regulation of existing Beijing area reaches energy-conservation 65%.Concrete enforcement in the face of this requirement and standard, existing Guan Yong heat preserving exterior wall system, styrofoam, compact substance plate will face the practical problems in technology and the construction: the thermal conductivity of styrofoam is 0.04w/mk, the thermal conductivity of compact substance plate is 0.027-0.029w/mk, though the thermal conductivity of compact substance plate is good, use its Wind-Pressure Resistance value on Highrise buildings just can not be born.The thermal conductivity of cement and polystyrene mortar will reach 65% heat preservation energy-saving index at 0.095-0.098, thickness with thick to 10 or 15cm.This kind thickness will increase the weight of the bearing capacity of body of wall greatly, and the carrying capacity of buildings is strengthened.Also there is proposition " sandwich " method promptly to use wall on the cement and polystyrene mortar therebetween styrofoam of the right and left 3cm.At first the cement and polystyrene mortar on both sides can not with the firm combination of styrofoam.Body of wall is an inorganics, and the cement and polystyrene mortar is an organism, and inorganic and organic two kinds of materials can not fine combination, in case come off, can cause casualties, and has great potential safety hazard.
The contriver must find the light material with suitable thermal conductivity at the status analysis gained of above-mentioned energy-saving index and existing lagging material.Autonomous in view of the above research can be played insulation, fire prevention, resistance sound, environment-friendly insulating brick, and the coordinative construction working method neither influencing the body of wall load-bearing, economizes on resources again again, reaches the heat preservation energy-saving index and settles method at one go.The contriver recognizes the necessity of insulation and the defective of world today's lagging material just, in conjunction with Chinese actual needs, carries out remarkable and hard research in 8 years.The ground ore resources of China is abundant, in Henan, the Northeast stores a large amount of perlite ores, stores a large amount of vermiculites in Xinjiang region, stores a large amount of dry soil in the area, Sichuan, all is inorganic natural insulation starting material.
Cold districts such as Beijing, northeast, northwest since energy-conservation requirement be three grades energy-conservation, more than 65%, if use traditional styrofoam and thermal insulation mortar to be difficult to reach requirement, even reach, the thickness of thermal insulation layer also needs 8-10CM.So unavoidable generation construction is loaded down with trivial details, the Wind-Pressure Resistance value is not enough, uses uneasy congruent shortcoming on Highrise buildings.In view of the above, need to accomplish to settle at one go, so develop insulating brick at heat preservation energy-saving.
Summary of the invention
The present invention's technical problem at first to be solved is to overcome the deficiencies in the prior art, and a kind of new hollow heat-insulation building block is provided.
Technical problem to be solved by this invention realizes by following technological approaches:
A kind of hollow heat-insulation building block is mainly made by the raw material of following weight part: acidify magaldrate lagging material additive 0.5-1.5 part, pearlstone 1-3 part;
Preferably, the weight part of each component is: 1 part of acidify magaldrate lagging material additive, 2 parts of pearlstones.
Wherein said acidify magaldrate lagging material additive mainly is made up of the component of following weight part: acidify magaldrate pulvis 97-99.9 part, ultra micro building materials efficient additive 0.1-3 part; Be preferably: 99.4 parts in acidify magaldrate pulvis, 0.6 part of ultra micro building materials efficient additive.Each component of above weight part is mixed, promptly obtain described acidify magaldrate lagging material additive.
In order to reach better heat insulation effect, above-mentioned acidify magaldrate lagging material additive also can contain the methylcellulose gum of 0.5-3 weight part, is preferably the methylcellulose gum that contains the 1-1.2 weight part.
In order to reach better heat insulation effect, also can contain the vermiculite or the dry soil of 0.1-0.8 weight part in the above-mentioned raw materials.
Described pearlstone is perforate pearlstone or closed-cell expanded perlite.
The preparation method of described acidify magaldrate pulvis is as follows: will contain the magnesium rate and reach 85% above magnesium oxide ore and throw and soak in (5% strength sulfuric acid+95% clear water) strong acid solution, and carry out sintering after the acidifying, make pulvis and be the acidify magaldrate pulvis.
Described ultra micro building materials efficient additive is that the patent No. is the disclosed ultra micro building materials of ZL200310113325.2 patent efficient additives.Described ultra micro building materials efficient additive comprises modified-cellulose 40-60 weight part, water-ground limestone 20-30 weight part, the vegetable-protein glue of material 20-30 weight part and 2-8 weight part, wherein, described modified-cellulose is selected from methyl cellulose ether, the hydroxyethyl ether Mierocrystalline cellulose, ethyl cellulose, Natvosol, carboxymethyl cellulose, hydroxypropylcellulose or their mixture; Described material is selected from silicon-dioxide, silicate, is the mineral of main component or their mixture with silicate.
Another technical problem to be solved by this invention provides a kind of method for preparing above-mentioned hollow heat-insulation building block.
Another technical problem to be solved by this invention realizes by following technological approaches:
A kind of method for preparing hollow heat-insulation building block may further comprise the steps:
1) takes by weighing each raw material by following weight part: acidify magaldrate lagging material additive 0.5-1.5 part, pearlstone 1-3 part;
2) above-mentioned raw materials is mixed after, be incorporated as the water or the waterproof liquid of 0.8-1 times of weight of mixture total weight amount, do not calcine drying, use traditional brickmaking technology to be pressed into dry density greater than 300kg/cm
3, thickness is 3-8cm, promptly gets hollow heat-insulation building block of the present invention.
The present invention uses acidify magaldrate lagging material additive parcel pearlstone to make hollow heat-insulation building block.Acidify magaldrate adds ultra micro building materials efficient additive, and ultra micro building materials efficient additive increases force of cohesion with the volatilization of water molecules, strengthens intensity, and reduced volume forms the gluing inclusion with acidify magaldrate.Via the prepared hollow heat-insulation building block of the inventive method is a kind of unburned product, after the slurry drying, form brilliant knot lattice, different pressure bears in different ratio Beijing South Maxpower Technology Co. Ltd, the pressure that low energy is born is at 1.0MPa, that the highest is 2.0MPa, and its thermal conductivity is in 0.08-0.10w/mk (common brick is more than 0.8).The hollow heat-insulation building block of the present invention of thermal conductivity≤0.1w/mk than the thermal conductivity of traditional brick 0.81w/mk, is its 8 times of hindering warm ability, makes 24 walls, not only can satisfy 65% energy-conservation, more can reach energy-conservation more than 80%.And with low cost, can be commonly civilian acceptance, satisfy the warming energy-conservation requirement of geographic harsh climates such as northeast, northwest.
The imitative common brick way (240mm*110mm*50mm) of hollow heat-insulation building block of the present invention, prepared insulating brick unit weight the most gently can reach 300g, thermal conductivity≤0.07w/mk.According to the energy-saving index of Beijing area 65%, the heat transfer coefficient that requires the main body body of wall is 0.57, thermal conductivity 0.1-0.15w/mk.
The shell of whole buildings solves with hollow heat-insulation building block of the present invention, reinforces with cement, woven wire on the both sides of insulating brick to strengthen, and thoroughly solves Beijing area 65%, even 80% energy-saving index.Simultaneously also solved the cold-resistant, in addition antifreeze of severe cold areas such as China Dark Longjiang, Jilin, Liaoning, insulating brick does not fire for 1000 ℃, in case fire appears in the room, more can not spread, feed through to other rooms.Insulating brick of the present invention, energy-conservation, resistance sound, insulation, fire prevention, pressure-bearing material adopt insulating brick of the present invention can make the whole cost decline of building trade.
The using method of hollow heat-insulation building block of the present invention comprises: when architecture construction hollow heat-insulation building block is built into insulated wall with bonding material, insulated wall is made in the middle of the body of wall, and sealer (Fig. 1) is done with cement in both sides.
Wherein, described bonding material can be conventional bonding material, is preferably the bonding material that is prepared by following method: take by weighing each raw material by following weight part: 0.7 part of 0.7 part in acidify magaldrate pulvis, 0.3 part of acidify magaldrate lattice body and pearlstone; Above raw material is mixed the water that the back adds 1 weight part, mix, promptly.
Description of drawings
The construction synoptic diagram of Fig. 1 hollow heat-insulation building block of the present invention.
Embodiment
Further describe the present invention by the following examples, it should be understood that these embodiment only are used for the purpose of illustration, never limit the scope of the invention.
Illustrate: the acidify magaldrate pulvis prepares in accordance with the following methods among the following embodiment of the application: will contain the magnesium rate and reach 85% above magnesium oxide ore and throw and soak in (5% strength sulfuric acid+95% clear water) strong acid solution, and carry out sintering after the acidifying, make pulvis and be the acidify magaldrate pulvis.
Embodiment 1
Preparation waterproof liquid: 10kg water-resisting agent (the happy high-effective water-proof series of KL-205 section, company limited produces by the prosperous chemical industry in Chengdu) mixes the water of 200kg.
By following weight part take by weighing each raw material (unit: kg): acidify magaldrate pulvis 99.4, ultra micro building materials efficient additive 0.6 (according to the patent No. be the disclosed method of ZL200310113325.2 patent prepare or available from Shanghai Yu Chen Technology Co., Ltd), perforate pearlstone 200; After above-mentioned raw materials mixed, add the waterproof liquid of 80kg, use traditional brickmaking technology pressing to make brick, do not calcine and be drying to obtain.
The hollow heat-insulation building block that present embodiment is prepared detects, and its every results of property sees Table 1.
Table 1 hollow heat-insulation building block performance test results of the present invention
| Test item title and unit | Insulating brick |
| Unit weight | 300-400 |
| Thermal conductivity w/mk | ≤0.1 |
| Intensity (MPs) | 1-2 |
| Water-intake rate (%) | 26 |
Embodiment 2
By following weight part take by weighing each raw material (unit: kg): acidify magaldrate pulvis 97, ultra micro building materials efficient additive 3 (according to the patent No. be the disclosed method of ZL200310113325.2 patent prepare or available from Shanghai Yu Chen Technology Co., Ltd), perforate pearlstone 300; After above-mentioned raw materials mixed, add the waterproof liquid of 90kg, use traditional brickmaking technology pressing to make brick, do not calcine and be drying to obtain.
The hollow heat-insulation building block that present embodiment is prepared detects, and its every results of property sees Table 2.
Table 2 hollow heat-insulation building block performance test results of the present invention
| Test item title and unit | Insulating brick |
| Unit weight | 300-400 |
| Thermal conductivity w/mk | ≤0.1 |
| Intensity (MPs) | 1-2 |
| Water-intake rate (%) | 23 |
Embodiment 3
By following weight part take by weighing each raw material (unit: kg): acidify magaldrate pulvis 99.1, ultra micro building materials efficient additive 0.6 (according to the patent No. be the disclosed method of ZL200310113325.2 patent prepare or available from Shanghai Yu Chen Technology Co., Ltd), closed-cell expanded perlite 150; After above-mentioned raw materials mixed, add the waterproof liquid of 90kg, use traditional brickmaking technology pressing to make brick, do not calcine and be drying to obtain.
The hollow heat-insulation building block that present embodiment is prepared detects, and its every results of property sees Table 3.
Table 3 hollow heat-insulation building block performance test results of the present invention
| Test item title and unit | Imitative common brick insulating brick |
| Unit weight | 300-400 |
| Thermal conductivity w/mk | ≤0.08 |
| Intensity (MPs) | 1-2 |
| Water-intake rate (%) | 24 |
Embodiment 4
By following weight part take by weighing each raw material (unit: kg): acidify magaldrate pulvis 98, ultra micro building materials efficient additive 1 (according to the patent No. be the disclosed method of ZL200310113325.2 patent prepare or available from Shanghai Yu Chen Technology Co., Ltd), methylcellulose gum 1, closed-cell expanded perlite 200; After above-mentioned raw materials mixed, add the waterproof liquid of 80kg, use traditional brickmaking technology pressing to make brick, do not calcine and be drying to obtain.
The hollow heat-insulation building block that present embodiment is prepared detects, and its every results of property sees Table 3.
Table 3 hollow heat-insulation building block performance test results of the present invention
| Test item title and unit | Imitative common brick insulating brick |
| Unit weight | 300-400 |
| Thermal conductivity w/mk | ≤0.08 |
| Intensity (MPs) | 1-2 |
| Water-intake rate (%) | 22 |
Embodiment 5
By following weight part take by weighing each raw material (unit: kg): acidify magaldrate pulvis 98, ultra micro building materials efficient additive 0.8 (according to the patent No. be the disclosed method of ZL200310113325.2 patent prepare or available from Shanghai Yu Chen Technology Co., Ltd) methylcellulose gum 1.2, closed-cell expanded perlite 150; After above-mentioned raw materials mixed, add the waterproof liquid of 60kg, use traditional brickmaking technology pressing to make brick, do not calcine and be drying to obtain.
The hollow heat-insulation building block that present embodiment is prepared detects, and its every results of property sees Table 3.
Table 3 hollow heat-insulation building block performance test results of the present invention
| Test item title and unit | Imitative common brick insulating brick |
| Unit weight | 300-400 |
| Thermal conductivity w/mk | ≤0.07 |
| Intensity (MPs) | 1-2 |
| Water-intake rate (%) | 23 |
Claims (8)
1, a kind of hollow heat-insulation building block is mainly made by the raw material of following weight part: acidify magaldrate lagging material additive 0.5-1.5 part and pearlstone 1-3 part; Described acidify magaldrate lagging material additive is made up of the component of following weight part: acidify magaldrate pulvis 97-99.9 part, ultra micro building materials efficient additive 0.1-3 part; Wherein, the preparation method of described acidify magaldrate pulvis is as follows: will contain the magnesium rate and reach magnesium oxide ore more than 85% and throw and to soak in strong acid solution, carry out sintering after the acidifying, make pulvis and be the acidify magaldrate pulvis, described strong acid solution is made up of according to 5: 95 volume ratio strength sulfuric acid and water; Described ultra micro building materials efficient additive comprises modified-cellulose 40-60 weight part, water-ground limestone 20-30 weight part, the vegetable-protein glue of material 20-30 weight part and 2-8 weight part, wherein, described modified-cellulose is selected from methyl cellulose ether, the hydroxyethyl ether Mierocrystalline cellulose, ethyl cellulose, Natvosol, carboxymethyl cellulose, hydroxypropylcellulose or their mixture; Described material is selected from silicon-dioxide, silicate, is the mineral of main component or their mixture with silicate.
2, according to the hollow heat-insulation building block of claim 1, it is characterized in that the weight part of each raw material is: 1 part of acidify magaldrate lagging material additive, 2 parts of pearlstones.
3, according to the hollow heat-insulation building block of claim 1, it is characterized in that the weight part of each component of described acidify magaldrate lagging material additive is: 99.4 parts in acidify magaldrate pulvis, 0.6 part of ultra micro building materials efficient additive.
4, according to the hollow heat-insulation building block of claim 1, it is characterized in that: described acidify magaldrate lagging material additive also contains the methylcellulose gum of 0.5-3 weight part.
5,, it is characterized in that described acidify magaldrate lagging material additive contains the methylcellulose gum of 1-1.2 weight part according to the hollow heat-insulation building block of claim 4.
6,, it is characterized in that described pearlstone is perforate pearlstone or closed-cell expanded perlite according to the hollow heat-insulation building block of claim 1.
7, a kind of method for preparing claim 1 hollow heat-insulation building block may further comprise the steps:
1) takes by weighing each raw material by described weight part;
2) above-mentioned raw materials is mixed after, be incorporated as the water or the waterproof liquid of 0.8-1 times of weight of mixture total weight amount, do not calcine drying, use traditional brickmaking technology to be pressed into dry density greater than 300kg/cm
3, thickness is 3-8cm, promptly.
8, any application of hollow heat-insulation building block in building heat preserving of claim 1-6, comprising: when architecture construction hollow heat-insulation building block is built into insulated wall with bonding material, insulated wall is made in the middle of the body of wall, and sealer is done with cement in both sides.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB200610140608XA CN100542988C (en) | 2006-09-29 | 2006-09-29 | A kind of hollow heat-insulation building block and preparation method thereof |
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| CNB200610140608XA CN100542988C (en) | 2006-09-29 | 2006-09-29 | A kind of hollow heat-insulation building block and preparation method thereof |
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| CN100542988C true CN100542988C (en) | 2009-09-23 |
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