CN103030316A - Light aggregate and preparation method thereof as well as cemented and solidified block material comprising light aggregate - Google Patents
Light aggregate and preparation method thereof as well as cemented and solidified block material comprising light aggregate Download PDFInfo
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- CN103030316A CN103030316A CN2011102954222A CN201110295422A CN103030316A CN 103030316 A CN103030316 A CN 103030316A CN 2011102954222 A CN2011102954222 A CN 2011102954222A CN 201110295422 A CN201110295422 A CN 201110295422A CN 103030316 A CN103030316 A CN 103030316A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Abstract
The invention relates to light aggregate and a preparation method thereof as well as cemented and solidified block material comprising the light aggregate. The light aggregate is used to serve as the composition of the cemented and solidified block material and comprises a plurality of foaming glass main grains and a plurality of secondary particles, wherein the outer surface of each foaming glass main grain is bonded with a plurality of secondary particles; the average particle diameter of the foaming glass main grains is more than the average particle diameter of the secondary particles; therefore, the original smooth appearance of the foaming glass main grains is improved; the surface roughness of the foaming glass main grains is improved so as to strength the binding force between the foaming glass main grains and the cementing agent, such as the cement; and therefore the cemented and solidified block material with the favorable mechanical strength is formed.
Description
Technical field
The present invention is about a kind of light weight aggregate, its preparation method and comprise the cementation solidifying bulk of this light weight aggregate, is a kind of cementation solidifying bulk of improveing light weight aggregate, its preparation method of foamed glass rough degree and comprising this light weight aggregate especially.
Background technology
The cementation solidifying bulk, for example concrete physical strength is very high, is suitable for carrying sizable weight, and but then, the weight of cementation solidifying bulk is higher, is unfavorable for carrying and construction.
For this reason, there is the people in the cementation solidifying bulks such as concrete, to add light weight aggregate to replace sandstone, reduces by this overall weight of cementation solidifying bulk, still can maintain certain physical strength simultaneously.For example, the patents such as WO2011048446, WO2011061569, RU2176219 have disclosed the concept of adding light weight aggregate in concrete, this light weight aggregate then is to use the foamed glass particle, the foamed glass particle mainly is when utilizing the glass hot mastication to produce glutinousness, its inner gas while that coats is expanded by heating also, impel glass to produce the foaming effect that expands, thereby have closely knit, level and smooth appearance and low, the lightweight advantage of water-intake rate, and be suitable for using as light weight aggregate.
Yet, because the foamed glass particle has level and smooth surface, glassy phase in material increases, the surface smoothing degree is higher, this closely knit again level and smooth surface also is unfavorable for being combined with the jointing compound such as cement, cause the physical strength of the cementation solidifying bulk made accordingly not as expection, and have the be full of cracks situation and produce.
In addition, processing for foamed glass, someone can add organic or the organic and inorganic whipping agent that mixes separately in heat-processed, or in other when heating, can produce the whipping agent of gas, such as carbon, aluminium hydroxide, carbonate etc., for example can be with reference to JP2010042961, JP2008239864, JP2006342012, CN1683469, KR20040020196, KR20030004032, the patents such as CN1194901 disclose, can under relatively low temperature, produce air release, so that the powder granule of granulation produces vesicular, carry out sintering and make expanded beads have enough physical strengths with comparatively high temps again.
But, usually have open hole by the made light granules of whipping agent, and higher water-intake rate is arranged, when using as light weight aggregate, need when making the cementation solidifying bulk, to add more water, cause the finished product machinery strength degradation of this cementation solidifying bulk; For example, the patents such as CN101113105, CN1915891, CN1559958, CN101492273 disclose system and directly add the whipping agent that produces gas by hydration in cement, make cement in process of setting, itself will produce vesicular structure, and then make the concrete bulk of lightweight, but its high-hydroscopicity also limits to the application of its product simultaneously; Moreover, add more water and also can cause the setting time of cementation solidifying bulk to elongate, and be unfavorable for reaching the processing procedure of quick demoulding.
In addition, the exposure of the patents such as CN101786818, KR100997136, KR20100067815, CN101186485, US2007040307 mixes glass and makes light weight aggregate with the high temperature foaming with ceramic material, owing to using the raw material of bed mud and mud class, easily in treating processes, because of the organism moment carbonization in the raw material, cause light weight aggregate to have high carbon content, more because carbon belongs to non-hydrophilic substance, for the jointing compound take water as solvent, its cementation solidifying bulk has the problem that tack strength is not good even chap.
In addition, the patent such as US2007186587, CN101182232, CN1463947 number discloses the raw material that contains pottery and glass ingredient, mode through granulation formation and high temperature foaming processing, can form the product that has than low water absorption and carbon content, but can't make enough little, the light weight aggregate of millimeter and the following specification of millimeter for example, and be not suitable for light weight aggregate as the cementation solidifying bulk.
In view of this, how utilizing other method to solve and commonly use the skill weak point, is the target that this area personage has in mind certainly.
Summary of the invention
Main purpose of the present invention is to provide a kind of light weight aggregate, and it can promote the bonding strength with cementation solidifying bulk jointing compound.
In addition, the present invention also provides a kind of cementation solidifying bulk for preparing the method for light weight aggregate and comprise this light weight aggregate.
In order to reach above-mentioned purpose, the invention discloses a kind of light weight aggregate, constituent as the cementation solidifying bulk, it is characterized in that: this light weight aggregate comprises some foamed glass host grains and several times particle, respectively the outside surface of this foamed glass host grain coheres a plurality of this time particles, and the median size of those foamed glass host grains is greater than the median size of those times particle.
Wherein, the median size of those foamed glass host grains is at least ten times of those times particle median size.
Wherein, those times particle is selected from by time particle of foamed glass not, foamed glass time particle, pottery time particle and composition thereof institute and forms in the group any one.
Wherein, those times particle comprises pottery time particle, and the median size of this pottery time particle is between 0.1 micron to 50 microns.
Wherein, those times particle comprises pottery time particle, and the composition of this pottery time particle comprises the silicon oxide that accounts for weight ratio 30-80% and accounts for the aluminum oxide of weight ratio 5-30%.
Wherein, this foamed glass host grain is circular or oval, and the median size of this foamed glass host grain is between 0.1 centimetre to 10 centimetres.
Also disclose a kind of cementation solidifying bulk, it comprises at least a jointing compound and as above-mentioned any light weight aggregate.
Wherein, this jointing compound series cement, hearthstone, gypsum or contain the inorganic polymeric material of silicates.
Also disclose a kind of method for preparing light weight aggregate, the method comprises:
(1) prepares some glass particles;
(2) those glass particles are heated, and when those glass particles are heated to its glass transition temperature when above, those glass particles foam and form the foamed glass host grain of some softening attitudes and have surface tackiness, and make the several times particle be bonded in the outside surface of the foamed glass host grain of those softening attitudes;
(3) the inferior particle that makes the foamed glass host grain of those softening attitudes and be bonded in its surface is down to normal temperature, and makes those foamed glass host grains solidify.
Wherein: the some glass particles of step () gained comprise some larger glass particles and some less glass particles, and the median size of those larger glass particles is at least ten times of those less glass particle median sizes;
Those less glass particles are first after this step (two), (three) process, and make less foamed glass host grain;
Those less foamed glass host grains mix with those larger glass particles and time particle again; and be heated to the above temperature of glass transition temperature that reaches this larger glass particle; make those larger glass particles foam and form the larger foamed glass host grain of some softening attitudes and have surface tackiness; those less foamed glass host grains and time particle system are bonded in the larger foamed glass host grain outside surface of this softening attitude; then lower the temperature, making those stick together has the larger foamed glass host grain of less foamed glass host grain and time particle to solidify.
By this, the main effect that the present invention reaches namely improves the surfaceness of originally level and smooth foamed glass host grain, makes it have irregular external form because being combined with inferior particle, thus the cohesive strength of reinforcement and jointing compound.Attainable another effect of the present invention is, when foamed glass host grain during at foaming process, it is higher than glass transition temperature because of temperature, make glass foaming host grain have glutinousness and might mutually cohere and become defective products, but because the interpolation of this time particle can separate softening foamed glass host grain, thereby avoid mutually cohering between the host grain, and improved further the production yield of light weight aggregate.
For ease of explanation this case represented clou in foregoing invention content one hurdle, hereby express with specific embodiment.Various different objects system is in the ratio that is suitable for exemplifying explanation among the embodiment, but not drawn in the ratio of actual components, close chat first bright.
Description of drawings
Fig. 1: the electron micrograph of the foamed glass host grain that is coated with high crystalline pottery time particle is cohered on the surface.
Fig. 2: enlargement ratio coheres the electron micrograph of the foamed glass host grain that is coated with high crystalline pottery time particle greater than the surface of Fig. 1.
Fig. 3: the electron micrograph of the foamed glass host grain that is coated with weak crystallinity pottery time particle is cohered on the surface.
Fig. 4: enlargement ratio coheres the electron micrograph of the foamed glass host grain that is coated with weak crystallinity pottery time particle greater than the surface of Fig. 3.
Fig. 5: the schematic appearance of light weight aggregate of the present invention, wherein this foamed glass host grain is circular.
Fig. 6: the electron micrograph of light weight aggregate of the present invention, wherein this foamed glass host grain is circular.
Fig. 7: the schematic appearance of light weight aggregate of the present invention, wherein this foamed glass host grain ovalization.
Fig. 8: the electron micrograph of light weight aggregate of the present invention, wherein this foamed glass host grain ovalization.
Fig. 9: light weight aggregate content is on the chart that affects of cementation solidifying bulk proportion and ultimate compression strength.
Figure 10: the light weight aggregate particle diameter is on the chart that affects of cementation solidifying bulk proportion and ultimate compression strength.
Embodiment
The invention provides a kind of light weight aggregate, this light weight aggregate then comprises some foamed glass host grains and several times particle, respectively the outside surface of this foamed glass host grain coheres particle a plurality of times, and the median size of those foamed glass host grains is greater than the median size of those times particle, and both particle diameters of preferably differ more than ten times.
Wherein, those times particle preferably is selected from by time particle of foamed glass not, foamed glass time particle, pottery time particle and composition thereof institute and forms in the group any one, when this time particle comprises the inferior particle of pottery, the median size system of this pottery time particle is between 0.1 micron to 50 microns, and its composition comprises the silicon oxide that accounts for weight ratio 30-80% and accounts for the aluminum oxide of weight ratio 5-30%; In addition, those foamed glass host grains are tied to form circle or ellipse, and its median size is between 0.1 centimetre to 10 centimetres.
Please refer to Figure 1 and Figure 2, the electron micrograph of the foamed glass host grain that is coated with high crystalline pottery time particle 1 coheres on the surface in system, this pottery time particle 1 is because having high crystalline, it presents tip shape in the outward appearance system of median size between 0.1 micron to 50 microns, has stronger Bonding strength thereby make between the jointing compound such as this light weight aggregate and cement.
Please then refer to Fig. 3 and shown in Figure 4, the electron micrograph of the foamed glass host grain that is coated with weak crystallinity pottery time particle 1 coheres on the surface in system, should easily have small cambered surface outward appearance by weak crystallinity pottery time particle 1, compared to high crystalline pottery time particle 1, bonding force between weak crystallinity pottery time particle 1 and the foamed glass host grain is stronger, and because after weak crystallinity pottery time particle 1 is attached to foamed glass host grain outside surface, still can form roughened appearance in this outside surface, thus the light weight aggregate of gained can promote equally and jointing compound between Bonding strength.
Please then refer to Fig. 5 and Fig. 6, wherein those times particle comprises the foamed glass time particle of same genus glass material or foamed glass time particle not, and those times particle more can comprise the pottery time particle that particle diameter is more small, this foaming or when foamed glass time particle 10 is not bonded in foamed glass host grain 20, those pottery time particles further are bonded in this foaming or the outside surface of foamed glass time particle 10 and foamed glass host grain 20 not, further increase by this out-of-shape and the roughness of light weight aggregate; Again, please further with reference to figure 7 and Fig. 8, foamed or cohering of foamed glass time particle 10 not, this foamed glass host grain 20 may be stretched and ovalization in the foamable process, the foamed glass host grain 20 of ovalization helps to increase out-of-shape, and can strengthen and jointing compound between Bonding strength.What is particularly worth mentioning is that, pottery time particle because of particle diameter considerably less than foaming or not foamed glass time particle 10 and foamed glass host grain 20, therefore do not express among Fig. 5 to Fig. 8, the graphic aspect of relevant pottery time particle is still please in the lump with reference to the electron microscope enlarged photograph of figure 2, Fig. 4.
Then, with the method for the above-mentioned light weight aggregate of explanation preparation, the method comprises:
(1) prepares some glass particles, can utilize the granulation modes such as rolling granulation or mist projection granulating to reach;
(2) those glass particles are heated, and when those glass particles are heated to its glass transition temperature when above, those glass particle systems foam and form the foamed glass host grain of some softening attitudes and have surface tackiness, and make the several times particle be bonded in the outside surface of the foamed glass host grain of those softening attitudes; Wherein, those times particle can be gone ahead of the rest before heating and be mixed with glass particle, perhaps just adds in heat-processed and mixes;
(3) the inferior particle that makes the foamed glass host grain of those softening attitudes and be bonded in its surface is down to normal temperature, and makes those foamed glass host grains solidify, and can make light weight aggregate as shown in Figure 1.
In addition, the some glass particles of this step () gained can comprise some larger glass particles and some less glass particles, the median size of those larger glass particles is at least ten times of those less glass particle median sizes, those less glass particles are first through this step (two), (3) after the processing, the less foamed glass host grain of gained mixes with those larger glass particles and time particle again, and heat (can be the front mixing of heating or add and pine for mixing) to the temperature of the glass transition temperature that is higher than this larger glass particle, make those larger glass particles foam and form the larger foamed glass host grain of some softening attitudes and have surface tackiness, those less foamed glass host grains and time particle system are bonded in the larger foamed glass host grain outside surface of this softening attitude, then lower the temperature, making those stick together has the larger foamed glass host grain of less foamed glass host grain and time particle to solidify; Wherein, this time particle can be pottery time particle, this less foamed glass host grain also can be considered the inferior particle of this larger foamed glass host grain on macroscopic, thereby can show such as Fig. 5 to light weight aggregate aspect shown in Figure 8, those times particle 10 namely is less foamed glass host grain in graphic, and then cohering in addition on the surface of those less foamed glass host grains (i.e. the inferior particle 10 of larger foamed glass host grain) and foamed glass host grain 20 has other trickleer pottery time particle.
In addition, those inferior particles that are bonded in foamed glass host grain surface also may comprise not foamed glass time particle, when then processing in order to foam at the foamed glass host grain, make this not foamed glass time particle remain on not foamed state, those not the glass transition temperature of foamed glass time particle be higher than the glass transition temperature of those glass particles, and when this step (two), those glass particles are heated to a preset temperature, this preset temperature is between the glass transition temperature of those glass particles and those not between the glass transition temperature of foamed glass time particle, make by this glass particle foam and form the foamed glass host grain, making again not, foamed glass time particle remains on not foamed state.
The present invention more provides a kind of cementation solidifying bulk, the concrete aspect of this cementation solidifying bulk for example is the concrete precast piece, it comprises at least a jointing compound and this light weight aggregate, and wherein this jointing compound preferably is cement, hearthstone, gypsum or the inorganic polymeric material that contains silicates.
Please refer to Fig. 9, be that light weight aggregate content is on the chart that affects of cementation solidifying bulk proportion and ultimate compression strength, solid line partly represents light weight aggregate of the present invention among the figure, dotted portion then is the light weight aggregate of commonly using of commonly using without cohering time particle disposal, those light weight aggregates are according to different ratios mixed cement and water, wherein the median size of those light weight aggregates is approximately 2.45 centimetres, water cement ratio then is controlled at 0.4, made cementation solidifying bulk characteristic as shown in Figure 9, the result shows that the cementation solidifying bulk that uses light weight aggregate of the present invention has relatively high ultimate compression strength, and proportion is then because of the higher phenomenon that slightly increases that presents of pottery time particle proportion.
Refer again to Figure 10, be that the light weight aggregate particle diameter is on the chart that affects of cementation solidifying bulk proportion and ultimate compression strength, solid line partly represents light weight aggregate of the present invention among the figure, dotted portion then is the light weight aggregate of commonly using of commonly using without cohering time particle disposal, wherein the content of light weight aggregate is controlled to be 80% of cumulative volume in the cementation solidifying bulk, and use and comply with the light weight aggregate that different classifications obtain, blending ratio with water cement ratio 0.4 is made the cementation solidifying bulk, the result as shown in figure 10, the light weight aggregate that particle diameter is less can be contributed larger physical strength, the proportion aspect, the proportion of the cementation solidifying bulk of use light weight aggregate of the present invention reduces with the increase of particle diameter, uses the proportion of the cementation solidifying bulk of commonly using light weight aggregate then to be subjected to the impact of change of size little; Obviously as seen, use the ultimate compression strength of the cementation solidifying bulk of light weight aggregate of the present invention approximately can increase 50kgf/cm
2, proving the light weight aggregate that uses irregular profile of the present invention, the ultimate compression strength of cementation solidifying bulk can obviously promote.
Although the present invention explains with some preferred embodiments, be skillful in this skill person and can do various multi-form changes not breaking away under the present invention spirit and the category.Above illustrated embodiment is only in order to the present invention to be described, and is non-in order to limit the scope of the invention.Such as do not disobey various modifications or the variation that spirit of the present invention is engaged in, all scopes that this invention is intended to protect that belongs to.
Claims (10)
1. light weight aggregate, constituent as the cementation solidifying bulk, it is characterized in that: this light weight aggregate comprises some foamed glass host grains and several times particle, respectively the outside surface of this foamed glass host grain coheres a plurality of this time particles, and the median size of those foamed glass host grains is greater than the median size of those times particle.
2. light weight aggregate as claimed in claim 1 is characterized in that, the median size of those foamed glass host grains is at least ten times of those times particle median size.
3. light weight aggregate as claimed in claim 1 is characterized in that, those times particle is selected from by time particle of foamed glass not, foamed glass time particle, pottery time particle and composition thereof institute and forms in the group any one.
4. light weight aggregate as claimed in claim 1 is characterized in that, those times particle comprises pottery time particle, and the median size of this pottery time particle is between 0.1 micron to 50 microns.
5. light weight aggregate as claimed in claim 1 is characterized in that, those times particle comprises pottery time particle, and the composition of this pottery time particle comprises the silicon oxide that accounts for weight ratio 30-80% and accounts for the aluminum oxide of weight ratio 5-30%.
6. light weight aggregate as claimed in claim 1 is characterized in that, this foamed glass host grain is circular or oval, and the median size of this foamed glass host grain is between 0.1 centimetre to 10 centimetres.
7. cementation solidifying bulk, it comprises at least a jointing compound and such as each described light weight aggregate in the claim 1 to 6.
8. cementation solidifying bulk as claimed in claim 7 is characterized in that, this jointing compound series cement, hearthstone, gypsum or contain the inorganic polymeric material of silicates.
9. one kind prepares such as the method for light weight aggregate as described in each in the claim 1 to 6, and the method comprises:
(1) prepares some glass particles;
(2) those glass particles are heated, and when those glass particles are heated to its glass transition temperature when above, those glass particles foam and form the foamed glass host grain of some softening attitudes and have surface tackiness, and make the several times particle be bonded in the outside surface of the foamed glass host grain of those softening attitudes;
(3) the inferior particle that makes the foamed glass host grain of those softening attitudes and be bonded in its surface is down to normal temperature, and makes those foamed glass host grains solidify.
10. the method for preparing as claimed in claim 9 light weight aggregate, wherein:
The some glass particles of step () gained comprise some larger glass particles and some less glass particles, and the median size of those larger glass particles is at least ten times of those less glass particle median sizes;
Those less glass particles are first after this step (two), (three) process, and make less foamed glass host grain;
Those less foamed glass host grains mix with those larger glass particles and time particle again; and be heated to the above temperature of glass transition temperature that reaches this larger glass particle; make those larger glass particles foam and form the larger foamed glass host grain of some softening attitudes and have surface tackiness; those less foamed glass host grains and time particle system are bonded in the larger foamed glass host grain outside surface of this softening attitude; then lower the temperature, making those stick together has the larger foamed glass host grain of less foamed glass host grain and time particle to solidify.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011102954222A CN103030316A (en) | 2011-10-08 | 2011-10-08 | Light aggregate and preparation method thereof as well as cemented and solidified block material comprising light aggregate |
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| CN2011102954222A CN103030316A (en) | 2011-10-08 | 2011-10-08 | Light aggregate and preparation method thereof as well as cemented and solidified block material comprising light aggregate |
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| CN103030316A true CN103030316A (en) | 2013-04-10 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001302261A (en) * | 2000-04-18 | 2001-10-31 | Akita Prefecture | Lightweight expanded glass tile and method for producing the same |
| US6531222B1 (en) * | 1999-06-30 | 2003-03-11 | Asahi Glass Company, Limited | Fine hollow glass sphere and method for preparing the same |
| CN101337827A (en) * | 2008-08-03 | 2009-01-07 | 王格 | Light aggregate foam concrete building blocks and method for manufacturing same |
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2011
- 2011-10-08 CN CN2011102954222A patent/CN103030316A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6531222B1 (en) * | 1999-06-30 | 2003-03-11 | Asahi Glass Company, Limited | Fine hollow glass sphere and method for preparing the same |
| JP2001302261A (en) * | 2000-04-18 | 2001-10-31 | Akita Prefecture | Lightweight expanded glass tile and method for producing the same |
| CN101337827A (en) * | 2008-08-03 | 2009-01-07 | 王格 | Light aggregate foam concrete building blocks and method for manufacturing same |
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Application publication date: 20130410 |