CN111410449A - High-strength composite filler for concrete and preparation method and application thereof - Google Patents
High-strength composite filler for concrete and preparation method and application thereof Download PDFInfo
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- CN111410449A CN111410449A CN202010227902.4A CN202010227902A CN111410449A CN 111410449 A CN111410449 A CN 111410449A CN 202010227902 A CN202010227902 A CN 202010227902A CN 111410449 A CN111410449 A CN 111410449A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/023—Chemical treatment
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/026—Comminuting, e.g. by grinding or breaking; Defibrillating fibres other than asbestos
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
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- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a high-strength composite filler for concrete and a preparation method and application thereof, wherein the high-strength composite filler is prepared from the following raw materials in parts by weight: 100-200 parts of fly ash, 300-500 parts of waste glass powder, 40-90 parts of high calcium stone, 20-40 parts of sodium sulfide and 50-150 parts of glass fiber; the sodium hydroxide can corrode the surface of the glass, improve the surface roughness of the glass particles, improve the bonding strength of the glass particles and the cement, facilitate the slow secondary hydration of the glass particles and reduce the reduction of the strength of the concrete caused by a smooth surface. The submicron glass powder and the fly ash both have stronger volcanic ash activity, can quickly improve the strength of concrete, and the sodium sulfate can obviously improve the secondary hydration speed of the glass powder. The addition of the crosslinkable materials such as glass fiber and superfine steel micro-wires obviously improves the strength of the concrete cured at the initial stage, shortens the curing period of the concrete, and achieves a high-strength state as soon as possible so as to be put into use.
Description
Technical Field
The invention relates to the field of concrete composite fillers, in particular to a high-strength composite filler for concrete and a preparation method and application thereof.
Background
In order to solve the problems of energy consumption and pollution caused by the cement industry, the most effective method is to reduce the dosage of portland cement clinker, namely to add a large amount of mineral materials as auxiliary cementing materials, besides improving the production process of cement. Glass is an amorphous solid with a random structure and contains a large amount of silica and calcium-containing chemicals. The glass powder particles have strong volcanic ash activity when the particle size is reduced to a certain degree, and can be used as a pozzolanic material to replace cement. And the finer the glass powder particles, the higher the pozzolanic activity, the more beneficial to promoting complete hydration reaction in the cement-based material and better filling the pores in the structure, so that the system structure is more compact, and the strength of the test piece is further improved. Therefore, the waste glass powder replaces cement to be used as a building material, the problem of shortage of cement production raw materials is relieved, the waste glass can be recycled, and great economic benefit and practical significance are achieved.
The concrete doped with the glass frit exhibits a low early strength due to a small amount of cement, but the strength continues to increase with time under wet curing conditions and approaches that of the reference concrete. Particularly when the glass frit is substituted for fine aggregate, the strength is significantly greater than that of the reference mix (references: Shayana, XuA. value-added evaluation of walstGlass inclusion [ J ]. center and Cement Research,2004,34(1):81-89.ShiC, WuY, ChrisR, et. characteristics and pore z Zolanetics activity of glass powders [ J ]. CementandConcrete Research,2005,35(5): 987-. The low early strength of the concrete can prolong the maintenance period, delay the delivery and increase the maintenance and construction period cost.
At present, most of recycled glass is flaky, the strength of concrete is obviously reduced when large glass is directly added into the concrete as aggregate, and smaller glass particles are polygonal, so that fine aggregate can be replaced and the reference strength of the concrete can be ensured, therefore, the glass serving as filler is added into the concrete and needs to be controlled under a certain particle size.
The color of glass is usually colorless (white), green, brown (brown), blue, etc., and is caused by metal oxides, compounds, etc., which are incorporated into the glass and may affect the pozzolanic activity and ASR expansion of the glass frit (references: Topc B, Bog aAR, BilirT. Alkali-silica reactivity of mortars producing and mixing glass as fine aggregate and additive sugar flash and L i2CO3[ J ]. Waste Management,2008,28(5):878 and 884.).
Disclosure of Invention
The technical problems to be solved by the invention are as follows: how to apply the waste glass to the preparation of concrete, the cement dosage is reduced, the continuous higher strength of the concrete is ensured, and meanwhile, the early low-strength time of the glass filler concrete is shortened, so that the high-strength application level of the concrete is reached as soon as possible.
In order to solve the technical problems, the invention provides the following technical scheme:
a high-strength composite filler for concrete is prepared from the following raw materials in parts by weight: 100-200 parts of fly ash, 300-500 parts of waste glass powder, 40-90 parts of high calcium stone, 20-40 parts of sodium sulfide and 50-150 parts of glass fiber;
the particle size of the waste glass powder is 0.5-5 mu m, the particle size of the fly ash is 40-50 mu m, the particle size of the high-calcium stone is 10-30 mu m, the glass fiber is alkali-free and wax-free, and the length of the glass fiber is 5-50 mm.
A preparation method of a high-strength composite filler for concrete comprises the following specific steps:
(A) cleaning, impurity removing and crushing waste glass raw materials, treating the waste glass with high-temperature steam, and drying after treatment;
(B) grinding the dried waste glass to a submicron level by the following method: crushing the glass product to 2-3 cm for the first time, putting the glass product into a jaw crusher to be crushed again to obtain a glass powder material with the particle size of less than 1mm, weighing 5kg of material each time, and putting the material into a ball mill to be ground for 120 min; mixing a certain amount of ground glass powder with the dispersion liquid, and placing in an ultrasonic cleaning machine for vibrating for 5min to fully disperse the agglomerated superfine glass powder; standing for 15min to naturally precipitate larger glass powder particles, removing the large glass powder particles from the upper suspension by a 5 μm filter screen, removing water from the filtrate in a solid-liquid separator, and finally grinding in a small mill for 5min to obtain submicron glass powder;
(C) the fly ash, the high-calcium stone and the sodium sulfide are weighed according to a proportion, ground to proper particle size and mixed, and finally the glass fiber is added and mixed to obtain the high-strength composite filler.
Preferably, the color of the waste glass is green or blue, and the dispersion is a 1M sodium hydroxide solution.
The concrete is prepared by adopting the high-strength composite filler as an admixture, and comprises the following specific steps:
(1) the standard concrete is prepared according to the following proportion: 2 parts of cement, 5-8 parts of aggregate and 1.5 parts of water;
(2) adding high-strength composite filler accounting for 25-40% of the weight of cement into the standard concrete, stirring and mixing uniformly, adding water, stirring uniformly, and pouring concrete to obtain the concrete.
Preferably, the aggregate is prepared from fine aggregate and 2-3 cm of broken stone according to the weight ratio of 3-4: and 5, the fine aggregate is composed of superfine steel microfilaments, waste glass particles and river sand, the waste glass particles are soaked in 1M sodium hydroxide, the particle size is 0.5-2 mm, the particle size of the superfine steel microfilaments is 50-80 mu M, and the particle size of the river sand is 2-5 mm.
Preferably, the ultra-fine steel micro-wires: waste glass particles: the weight ratio of the river sand is 1: 4: 8.
the invention has the following beneficial effects:
(1) the compactness can be improved and the concrete strength can be improved by reasonably grading the aggregate;
(2) the sodium hydroxide can corrode the surface of the glass, improve the surface roughness of the glass particles, improve the bonding strength of the glass particles and the cement, facilitate the slow secondary hydration of the glass particles, reduce the reduction of the concrete strength caused by the smooth surface and further improve the concrete strength.
(3) The submicron-grade glass powder and the fly ash both have stronger volcanic ash activity, and generate calcium silicate with the high-calcium stone in a water environment, so that the secondary hydration of the filler and the cement is promoted, the strength of the concrete is further rapidly improved, and the sodium sulfate serving as an activator can obviously improve the secondary hydration speed of the glass powder and shorten the time for lowering the strength of the concrete.
(4) Due to the addition of the glass powder, the fluidity of the concrete is increased during the pouring process and the initial curing strength is low under the same water-gel ratio, so that crosslinkable materials such as glass fiber and superfine steel micro-wires are added, a net-shaped crosslinked structure is formed by lapping, the concrete strength of the initial curing is obviously improved, the curing period of the concrete is shortened, and the concrete reaches a high-strength state as soon as possible so as to be put into use.
Detailed Description
The following examples are included to provide further detailed description of the present invention and to provide those skilled in the art with a more complete, concise, and exact understanding of the principles and spirit of the invention.
Example 1: the high-strength composite filler is prepared by the following method:
(A) after cleaning, impurity removal and crushing 300 parts by weight of blue waste glass raw material, treating the waste glass with high-temperature steam, and drying after treatment;
(B) grinding the dried waste glass to a submicron level by the following method: crushing the glass product to 2cm for the first time, putting the glass product into a jaw crusher to be crushed again to obtain a glass powder material with the particle size less than 1mm, weighing 5kg of material each time, and putting the material into a ball mill to be ground for 120 min; mixing a certain amount of ground glass powder with the dispersion liquid, and placing in an ultrasonic cleaning machine for vibrating for 5min to fully disperse the agglomerated superfine glass powder; standing for 15min to naturally precipitate larger glass powder particles, removing large glass powder particles from the upper suspension by a 5 μm filter screen, removing water from the filtrate in a solid-liquid separator, and grinding in a small mill for 5min to obtain submicron glass powder particles with particle size of 0.5 μm; the dispersion in this example was a 1M sodium hydroxide solution.
(C) 100 parts by weight of fly ash, 40 parts by weight of high calcium stone and 20 parts by weight of sodium sulfide are weighed according to a proportion, ground to a proper particle size and mixed, and finally 50 parts by weight of alkali-free and wax-free 5mm glass fiber is added and mixed to obtain the high-strength composite filler.
In the embodiment, the particle size of the fly ash is 40-50 μm, and the particle size of the high-calcium stone is 10-30 μm.
Example 2: the high-strength composite filler is prepared by the following method:
(A) after 500 parts by weight of green waste glass raw materials are cleaned, subjected to impurity removal and crushed, the waste glass is treated by high-temperature steam, and then dried;
(B) grinding the dried waste glass to a submicron level by the following method: crushing the glass product to 3cm for the first time, putting the glass product into a jaw crusher to be crushed again to obtain a glass powder material with the particle size less than 1mm, weighing 5kg of material each time, and putting the material into a ball mill to be ground for 120 min; mixing a certain amount of ground glass powder with the dispersion liquid, and placing in an ultrasonic cleaning machine for vibrating for 5min to fully disperse the agglomerated superfine glass powder; standing for 15min to naturally precipitate larger glass powder particles, removing large glass powder particles from the upper suspension by a 5 μm filter screen, removing water from the filtrate in a solid-liquid separator, and grinding in a small mill for 5min to obtain submicron glass powder particles with particle size of 5 μm; the dispersion in this example was a 1M sodium hydroxide solution.
(C) 200 parts of fly ash, 90 parts of high-calcium stone and 40 parts of sodium sulfide are weighed according to a proportion, ground to a proper particle size and mixed, and finally 150 parts of alkali-free and wax-free 50mm glass fiber is added and mixed to obtain the high-strength composite filler.
In the embodiment, the particle size of the fly ash is 40-50 μm, and the particle size of the high-calcium stone is 10-30 μm.
Example 3: the high-strength composite filler is prepared by the following method:
(A) after 400 parts by weight of green waste glass raw materials are cleaned, subjected to impurity removal and crushed, the waste glass is treated by high-temperature steam, and then dried;
(B) grinding the dried waste glass to a submicron level by the following method: crushing the glass product to 2.5cm for the first time, putting the glass product into a jaw crusher to be crushed again to obtain a glass powder material with the particle size less than 1mm, weighing 5kg of material each time, and putting the material into a ball mill to be ground for 120 min; mixing a certain amount of ground glass powder with the dispersion liquid, and placing in an ultrasonic cleaning machine for vibrating for 5min to fully disperse the agglomerated superfine glass powder; standing for 15min to naturally precipitate larger glass powder particles, removing large glass powder particles from the upper suspension by a 5 μm filter screen, removing water from the filtrate in a solid-liquid separator, and grinding in a small mill for 5min to obtain submicron glass powder particles with particle size of 2.5 μm; the dispersion in this example was a 1M sodium hydroxide solution.
(C) 150 parts by weight of fly ash, 65 parts by weight of high calcium stone and 30 parts by weight of sodium sulfide are weighed according to a proportion, ground to proper particle size and mixed, and finally 100 parts by weight of alkali-free and wax-free 30mm glass fiber is added and mixed to obtain the high-strength composite filler.
In the embodiment, the particle size of the fly ash is 40-50 μm, and the particle size of the high-calcium stone is 10-30 μm.
Example 4: the preparation of the concrete admixture by using the high-strength composite filler prepared in the example 1 comprises the following specific steps:
(1) the standard concrete is prepared according to the following proportion: 2 parts by weight of cement, 8 parts by weight of aggregate and 1.5 parts by weight of water;
(2) adding high-strength composite filler accounting for 40% of the weight of cement into the standard concrete, stirring and mixing uniformly, adding water, stirring uniformly and pouring the concrete to obtain the concrete.
In the embodiment, the aggregate is prepared from fine aggregate and 2-3 cm of broken stone according to a weight ratio of 4: 5, wherein the fine aggregate is prepared from superfine steel microfilaments, waste glass particles and river sand according to the weight ratio of 1: 4: 8, soaking the waste glass particles for 2 hours by 1M of sodium hydroxide, wherein the particle size is 0.5-2 mm, the particle size of the superfine steel microfilaments is 50-80 mu M, and the particle size of the river sand is 2-5 mm.
Example 5: the preparation of the concrete admixture by using the high-strength composite filler prepared in the example 2 comprises the following specific steps:
(1) the standard concrete is prepared according to the following proportion: 2 parts by weight of cement, 5 parts by weight of aggregate and 1.5 parts by weight of water;
(2) adding high-strength composite filler accounting for 25% of the weight of cement into the standard concrete, stirring and mixing uniformly, adding water, stirring uniformly, and pouring the concrete to obtain the concrete.
In the embodiment, the aggregate is prepared from fine aggregate and 2-3 cm of broken stone according to a weight ratio of 3: 5, wherein the fine aggregate is prepared from superfine steel microfilaments, waste glass particles and river sand according to the weight ratio of 1: 4: 8, soaking the waste glass particles for 1 hour by 1M sodium hydroxide, wherein the particle size is 0.5-2 mm, the particle size of the superfine steel microfilaments is 50-80 mu M, and the particle size of the river sand is 2-5 mm.
Example 6: the concrete admixture is prepared by adopting the high-strength composite filler prepared in the embodiment 3, and the concrete steps are as follows:
(1) the standard concrete is prepared according to the following proportion: 2 parts by weight of cement, 6.5 parts by weight of aggregate and 1.5 parts by weight of water;
(2) adding high-strength composite filler accounting for 33.3 percent of the weight of cement into the standard concrete, stirring and mixing uniformly, adding water, stirring uniformly and pouring the concrete to obtain the concrete.
In the embodiment, the aggregate is prepared from fine aggregate and 2-3 cm of broken stone according to a weight ratio of 3.5: 5, wherein the fine aggregate is prepared from superfine steel microfilaments, waste glass particles and river sand according to the weight ratio of 1: 4: 8, soaking the waste glass particles in 1M sodium hydroxide for 30min, wherein the particle size is 0.5-2 mm, the particle size of the superfine steel micro-wires is 50-80 mu M, and the particle size of the river sand is 2-5 mm.
Comparative example 1: the rest is the same as example 6, except that the high-strength composite filler is not added, and cement is used instead of the weight.
Comparative example 2: the rest is the same as the example 6, except that the glass fiber is not added in the filler, the waste glass powder is used for replacing the corresponding component, the superfine steel microfilaments are not added in the fine aggregate, and the river sand is used for replacing the component.
Activity index determination
Concrete test pieces are respectively manufactured according to the mixing ratios shown in examples 4-6 and comparative examples 1-2, the concrete test pieces are placed in a water pool for natural curing after being demoulded, the test pieces are taken out when being maintained for 3d, 7d and 28d in standard, the compressive strength of the test pieces is measured, the standard concrete test pieces are prepared according to the mixing ratio in example 6 by only adopting broken stones, river sand and cement as raw materials, then the activity index of the high-strength composite filler in the test pieces at each age is calculated according to the activity formula of mineral admixture application technical specification (GB/T51003-2014), and the calculation formula of the activity index is as follows:
A＝Rt/R0×100％
wherein A represents the activity index (%) of the mineral admixture;
Rtstrength (MPa) of the test pieces of the examples at the respective ages;
R0strength (MPa) of the reference concrete specimen at the corresponding age.
TABLE 1 determination results of compressive strength and filler activity index of concrete test piece
In table 1, the comparison of the results of the comparative example 2 and the reference concrete shows that the early strength of the test piece can be greatly reduced due to the remaining components of the filler when the glass fiber and the ultrafine steel micro-wire are absent, but the comparison of the data of 7d and 28d shows that the glass powder and the fly ash in the filler play the pozzolanic activity in the middle and later stages of curing, are secondarily hydrated and have reasonable particle composition, so that the overall strength of the concrete gradually approaches or even exceeds the strength of the reference concrete, and the comparison of the results of the comparative example 1 and the reference concrete shows that the glass fiber and the ultrafine steel micro-wire can obviously improve the strength of the early concrete, but because the active filler is not added, the improvement of the strength in the middle and later stages is very limited, the end strength is equal to that of the reference concrete, and the strength of the concrete is.
The early compressive strength of the test piece 3d of the examples 4 to 6 is close to that of the comparative example 1 and is significantly higher than that of the comparative example 2, which is mainly due to the fact that the glass fiber added in the filler and the extra-fine steel microfilament added in the fine aggregate are utilized, the early strength reduction caused by the replacement of cement by the glass powder can be counteracted by the active reinforced fibrous filler, and the compressive strengths of the test pieces 7d and 28d of the examples 4 to 6 are higher than those of the reference concrete and the comparative example 1, which is mainly due to the active exertion of the glass powder and the fly ash at the moment, and the compressive strength of the concrete is further increased.
It can be seen from the comparison of examples 4-6 with comparative example 1, comparative example 2 and the reference concrete that the glass fiber and the ultra-fine steel microfilament can offset the weakening effect of the glass powder and the fly ash in the filler on the strength of the concrete in the early stage, and after the active glass powder and the fly ash in the filler in the middle and later stages exert the activity, the strength of the concrete test piece is further improved, and the strength is obviously higher than that of the reference concrete, so that the time for putting the test piece into use is shortened, and the strength of the concrete is obviously improved under the condition of curing in the same time.
In conclusion, the reasonable grading of the aggregate can increase the compactness and improve the strength of the concrete; the sodium hydroxide can corrode the surface of the glass, improve the surface roughness of the glass particles, improve the bonding strength of the glass particles and the cement, facilitate the slow secondary hydration of the glass particles, reduce the reduction of the concrete strength caused by the smooth surface and further improve the concrete strength. The submicron-grade glass powder and the fly ash both have stronger volcanic ash activity, and generate calcium silicate with the high-calcium stone in a water environment, so that the secondary hydration of the filler and the cement is promoted, the strength of the concrete is further rapidly improved, and the sodium sulfate serving as an activator can obviously improve the secondary hydration speed of the glass powder and shorten the time for lowering the strength of the concrete. Due to the addition of the glass powder, the fluidity of the concrete is increased during the pouring process and the initial curing strength is low under the same water-gel ratio, so that crosslinkable materials such as glass fiber and superfine steel micro-wires are added, a net-shaped crosslinked structure is formed by lapping, the concrete strength of the initial curing is obviously improved, the curing period of the concrete is shortened, and the concrete reaches a high-strength state as soon as possible so as to be put into use.
The above embodiments are only for illustrating the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby, and any modification made on the basis of the technical scheme according to the technical idea proposed by the present invention falls within the protection scope of the present invention; the technology not related to the invention can be realized by the prior art.
Claims (6)
1. The high-strength composite filler for concrete is characterized by being prepared from the following raw materials in parts by weight: 100-200 parts of fly ash, 300-500 parts of waste glass powder, 40-90 parts of high calcium stone, 20-40 parts of sodium sulfide and 50-150 parts of glass fiber;
the particle size of the waste glass powder is 0.5-5 mu m, the particle size of the fly ash is 40-50 mu m, the particle size of the high-calcium stone is 10-30 mu m, the glass fiber is alkali-free and wax-free, and the length of the glass fiber is 5-50 mm.
2. A method for preparing a high-strength composite filler for concrete as claimed in claim 1, comprising the following specific steps:
(A) cleaning, impurity removing and crushing waste glass raw materials, treating the waste glass with high-temperature steam, and drying after treatment;
(B) grinding the dried waste glass to a submicron level by the following method: crushing the glass product to 2-3 cm for the first time, putting the glass product into a jaw crusher to be crushed again to obtain a glass powder material with the particle size of less than 1mm, weighing 5kg of material each time, and putting the material into a ball mill to be ground for 120 min; mixing a certain amount of ground glass powder with the dispersion liquid, and placing in an ultrasonic cleaning machine for vibrating for 5min to fully disperse the agglomerated superfine glass powder; standing for 15min to naturally precipitate larger glass powder particles, removing the large glass powder particles from the upper suspension by a 5 μm filter screen, removing water from the filtrate in a solid-liquid separator, and finally grinding in a small mill for 5min to obtain submicron glass powder;
(C) the fly ash, the high-calcium stone and the sodium sulfide are weighed according to a proportion, ground to proper particle size and mixed, and finally the glass fiber is added and mixed to obtain the high-strength composite filler.
3. A high strength composite filler for concrete according to claim 1, wherein the waste glass has a green or blue color and the dispersion is 1M sodium hydroxide solution.
4. A concrete characterized by: the high-strength composite filler of claim 1 is used for preparing the admixture, and the concrete steps are as follows:
(1) the standard concrete is prepared according to the following proportion: 2 parts of cement, 5-8 parts of aggregate and 1.5 parts of water;
(2) adding high-strength composite filler accounting for 25-40% of the weight of cement into the standard concrete, stirring and mixing uniformly, adding water, stirring uniformly, and pouring concrete to obtain the concrete.
5. The concrete according to claim 4, wherein the aggregate is prepared from fine aggregate and 2-3 cm of broken stone in a weight ratio of 3-4: and 5, the fine aggregate is composed of superfine steel microfilaments, waste glass particles and river sand, the waste glass particles are soaked in 1M sodium hydroxide, the particle size is 0.5-2 mm, the particle size of the superfine steel microfilaments is 50-80 mu M, and the particle size of the river sand is 2-5 mm.
6. The concrete according to claim 5, wherein: the ultra-fine steel micro-wires are as follows: waste glass particles: the weight ratio of the river sand is 1: 4: 8.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112521748A (en) * | 2020-12-18 | 2021-03-19 | 株洲春华实业有限责任公司 | Thermoplastic material for manufacturing automobile air suspension part and preparation method thereof |
| CN113045269A (en) * | 2021-03-15 | 2021-06-29 | 湖南工程学院 | Physical-chemical combined activated glass solid waste concrete and preparation method thereof |
| CN117430366A (en) * | 2023-10-13 | 2024-01-23 | 山东大学 | Additive for foaming cement filling material of deep mine and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105152585A (en) * | 2015-08-28 | 2015-12-16 | 金陵科技学院 | Preparation method of fly ash-waste glass powder inorganic polymer sludge curing material |
| CN105776968A (en) * | 2016-02-04 | 2016-07-20 | 苏州中材建筑建材设计研究院有限公司 | High-strength concrete with fire resistance and burst resistance and preparation method thereof |
| CN106630700A (en) * | 2016-09-30 | 2017-05-10 | 河海大学 | Inorganic gelling material made from coal ash and waste glass and preparation method of inorganic gelling material |
-
2020
- 2020-03-27 CN CN202010227902.4A patent/CN111410449A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105152585A (en) * | 2015-08-28 | 2015-12-16 | 金陵科技学院 | Preparation method of fly ash-waste glass powder inorganic polymer sludge curing material |
| CN105776968A (en) * | 2016-02-04 | 2016-07-20 | 苏州中材建筑建材设计研究院有限公司 | High-strength concrete with fire resistance and burst resistance and preparation method thereof |
| CN106630700A (en) * | 2016-09-30 | 2017-05-10 | 河海大学 | Inorganic gelling material made from coal ash and waste glass and preparation method of inorganic gelling material |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112521748A (en) * | 2020-12-18 | 2021-03-19 | 株洲春华实业有限责任公司 | Thermoplastic material for manufacturing automobile air suspension part and preparation method thereof |
| CN113045269A (en) * | 2021-03-15 | 2021-06-29 | 湖南工程学院 | Physical-chemical combined activated glass solid waste concrete and preparation method thereof |
| CN113045269B (en) * | 2021-03-15 | 2021-11-16 | 湖南工程学院 | Physical-chemical combined activated glass solid waste concrete and preparation method thereof |
| CN117430366A (en) * | 2023-10-13 | 2024-01-23 | 山东大学 | Additive for foaming cement filling material of deep mine and preparation method thereof |
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