CN106007782A - Light porous self-insulating concrete block and preparation method thereof - Google Patents
Light porous self-insulating concrete block and preparation method thereof Download PDFInfo
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- CN106007782A CN106007782A CN201610336111.9A CN201610336111A CN106007782A CN 106007782 A CN106007782 A CN 106007782A CN 201610336111 A CN201610336111 A CN 201610336111A CN 106007782 A CN106007782 A CN 106007782A
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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
- C04B28/02—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 containing hydraulic cements other than calcium sulfates
- C04B28/06—Aluminous cements
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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
- C04B28/02—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 containing hydraulic cements other than calcium sulfates
- C04B28/08—Slag cements
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00008—Obtaining or using nanotechnology related materials
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
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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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to a light porous self-insulating concrete block and a preparation method thereof. The light porous self-insulating concrete block is prepared from the following raw materials in parts by weight: 20-32 parts of cement, 20-35 parts of building waste residues, 3-18 parts of bagasse cellulose, 10-25 parts of fly ash, 0.02-1 part of calcined lime, 3-5.5 parts of nano aluminium oxide, 0.2-1.6 parts of nano calcium carbonate, 1-3 parts of titanium gypsum powder, 0.2-0.5 part of an accelerator, 7-15 parts of a foaming agent, 0.1-0.5 part of a water reducing agent and a proper amount of water. The bagasse cellulose and the building waste residues are utilized effectively, consumption of non-renewable clay resources is reduced, building waste materials are recycled, the light porous self-insulating concrete block which is light in self weight, high in strength and good in thermal performance is prepared by reasonable raw material ratio, and social and economic benefits are improved.
Description
Technical field
The present invention relates to the technical field of energy-saving building materials, particularly to a kind of light porous self heat-preserving concrete building block and preparation method thereof.
Background technology
Along with Chinese society rapid development of economy, the building energy consumption total amount of China is also the most soaring, and within 2014, China's building energy consumption accounts for the 30% of energy aggregate consumption.Therefore, carry out Building Energy-saving Work, scientific and reasonable reduction building energy consumption, for implementing energy-saving and emission-reduction strategy, build a resource-conserving society, it is achieved sustainable development is significant.In building energy consumption, the heat of construction exterior wall fencing construction scatters and disappears the principal element being to cause building high energy consumption, thus, heating, insulation and the exterior wall enclosure structure of building is reformed the key being to realize building energy conservation target.
Low due to China's economic level for a long time, building standard is relatively low, and environmental protection consciousness is strong, and in building, a large amount of use clay bricks are as building masonry material, cause the waste of a large amount of non-renewable land resource and huge energy consumption.In recent years, along with the propelling of national environmental protection work, the usage amount of clay brick reduces the most year by year, and some areas prohibit the use of the policy of clay brick the most to release and in the process of implementation.Therefore, the substitution of the building material finding clay brick has become as the inexorable trend of building trade.The a series of building materials such as Dinas brickes, cement block, building-block, air-entrained concrete building block are used the most.
Since U.S. Ha Qixun in 1866 obtains first part of patent producing building-block, concrete hollow block building is in the extensively application of more than 100, whole world country.Developed country puts into numerous studies in terms of the heat-insulating property of concrete novel building block and acquires a great achievement.The TB type composite thermal insulation building block gone out such as American Studies；Canadian Studies goes out IMSI composite thermal insulation building block；Poland works out U type biting connecions composite heat insulation block；Finland works out sandwich style composite thermal insulation building block etc..For the situation that the research and development of current China self-insulating wall material are at the early-stage, develop and meet the Novel self-heat preserving walling that China's " energy-saving and environmental protection, heat-insulation and heat-preservation " requires, be the Main way of current walling masonry research.
Summary of the invention
The technical problem to be solved in the present invention is: provide a kind of light porous self heat-preserving concrete building block and preparation method thereof, thus effectively utilize bagasse fibre, construction waste, reduce non-renewable clay resource consumption, realize construction waste to recycle, and utilize reasonable proportioning raw materials to prepare from heavy and light, intensity is high, thermal property is good light porous self heat-preserving concrete building block preparation method, improve economic results in society.
The technical scheme solving above-mentioned technical problem is: a kind of light porous self heat-preserving concrete building block, and it is made up of the raw material of following parts by weight: cement 20-32 weight portion, building waste residue 20-35 weight portion, Bagasse-cellulose 3-18 weight portion, flyash 10-25 weight portion, quick lime 0.02-1 weight portion, nano aluminium oxide 3-5.5 weight portion, nano-calcium carbonate 0.2-1.6 weight portion, titanium gypsum powder 1-3 weight portion, accelerator 0.2-0.5 weight portion, foaming agent 7-15 weight portion, water reducer 0.1-0.5 weight portion and water are appropriate；
The sodium hydroxide solution mixing of described Bagasse-cellulose and mass fraction 15-20% 0.8-1.2 hour, Bagasse-cellulose is 1:1.5-2 with the mass ratio of sodium hydroxide solution, filters out Bagasse-cellulose and is washed with deionized to neutrality, vacuum drying.
Described cement be in portland cement, aluminate cement, sulphate aluminium cement and alkali slag cement one or both, three kinds, four kinds.
Described foaming agent be in hydrogen peroxide, aluminium powder, potassium permanganate one or both, three kinds.
Described Bagasse-cellulose water content is less than 5%.
After described building waste residue grinds, cross 300 mesh standard sieve screenings.
The preparation method that another solution is that above-mentioned light porous self heat-preserving concrete building block of the present invention, comprises the following steps:
(1) by cement, building waste residue, flyash, quick lime, titanium gypsum powder and accelerator mix homogeneously；
(2) pretreated Bagasse-cellulose, nano aluminium oxide, nano-calcium carbonate are added to ultrasonic disperse in the ethanol solution containing mass fraction 0.4-0.6% silane resin acceptor kh-550 and uniformly, stir 3-4 minute mix homogeneously of mixing in dried addition step mixture (1)；
(3) after foaming agent, water reducer are mixed homogeneously with appropriate water, add step mixture (2) stirs in cast blender and make slurry, slurry is entered mould, makes normal pressure natural curing after the shape of requirement, curing time is not less than 10 days, obtains energy-saving light-weight porous concrete building blocks.
The light porous self heat-preserving concrete building block that (3) step obtains, heat conductivity is not more than 0.7W/m K, and proportion is not more than 1200kg/m3, comprcssive strength is not less than 5MPa, 25 freeze-thaw cycle of frost resistance.
The present invention utilizes building waste residue, flyash, Bagasse-cellulose as implant, quick lime, nano aluminium oxide, nano-calcium carbonate, titanium gypsum powder are modifying agent, with cement, accelerator, water is cementitious matter and adjuvant, blended stirring, vibration moulding, maintenance under normal condition and the self-insulation wall material made, the effect having and advantage: one is that the good heat preservation performance of building block, unit weight is low, intensity meets the advantages such as partition wall requires, has the most wide application prospect；Two is to produce light porous joint self heat-preserving concrete building block with building waste residue, bagasse fibre, production process is simple, energy consumption is low, is applied to skyscraper and can effectively reduce Structural Engineering cost, improves building thermal property, energy consumption reduces, and is a kind of energy-saving and environmental protection, economic green material；Three is to prepare light porous energy-saving concrete one hand tile to can be widely applied to non-bearing wall body, it is possible to reduce the load of high-rise, thus improves the safety guarantee of high-rise, benefits society.It addition, the whole process of production of the present invention do not have waste discharge, except stirring in addition to almost without energy resource consumption, belong to environment friendly technology.
Below, in conjunction with specific embodiments the technical characteristic of the light porous self heat-preserving concrete building block of the present invention and preparation method thereof is further described.
Detailed description of the invention
Embodiment 1-embodiment 4: a kind of light porous self heat-preserving concrete building block, each proportioning raw materials and prepared building block index are shown in Table 1.
In table 1, the sodium hydroxide solution of described Bagasse-cellulose mass fraction 18% soaks 1 hour, and Bagasse-cellulose is 1:1.8 with the mass ratio of sodium hydroxide solution, filters out Bagasse-cellulose and is washed with deionized to neutrality, vacuum drying.Bagasse-cellulose water content is less than 5%.After described building waste residue grinds, cross 300 mesh standard sieve screenings.Described building waste residue is primarily referred to as the waste bricks that removal process produces.
Embodiment 5: the preparation method of a kind of light porous self heat-preserving concrete building block as described in embodiment 1-4, comprises the following steps:
(1) by cement, building waste residue, flyash, quick lime, titanium gypsum powder and accelerator mix homogeneously；
(2) pretreated Bagasse-cellulose, nano aluminium oxide, nano-calcium carbonate are added to ultrasonic disperse in the ethanol solution containing mass fraction 0.4-0.6% silane resin acceptor kh-550 and uniformly, quickly stir and mix 3-4 minute mix homogeneously in dried addition step mixture (1)；
(3) after foaming agent, water reducer are mixed homogeneously with appropriate water, add step mixture (2) quickly stirs in cast blender and make slurry, slurry is entered mould, makes normal pressure natural curing after the shape of requirement, curing time is not less than 10 days, obtains energy-saving light-weight porous concrete building blocks.The block interiors obtained has substantial amounts of micropore, and heat conductivity is not more than 0.7W/m K, and proportion is not more than 1200kg/m3, comprcssive strength is not less than 5MPa, 25 freeze-thaw cycle of frost resistance.
Above example is only presently preferred embodiments of the present invention, and the structure of the present invention is not limited to the form that above-described embodiment is enumerated, all made within the spirit and principles in the present invention any amendment, equivalent etc., should be included within the scope of the present invention.
Claims (7)
1. a light porous self heat-preserving concrete building block, it is characterised in that: it is made up of the raw material of following parts by weight: cement 20-32 weight portion, building waste residue 20-35 weight portion, Bagasse-cellulose 3-18 weight portion, flyash 10-25 weight portion, quick lime 0.02-1 weight portion, nano aluminium oxide 3-5.5 weight portion, nano-calcium carbonate 0.2-1.6 weight portion, titanium gypsum powder 1-3 weight portion, accelerator 0.2-0.5 weight portion, foaming agent 7-15 weight portion, water reducer 0.1-0.5 weight portion and water are appropriate；
The sodium hydroxide solution mixing of described Bagasse-cellulose and mass fraction 15-20% 0.8-1.2 hour, Bagasse-cellulose is 1:1.5-2 with the mass ratio of sodium hydroxide solution, filters out Bagasse-cellulose and is washed with deionized to neutrality, vacuum drying.
Light porous self heat-preserving concrete building block the most according to claim 1, it is characterised in that: described cement be in portland cement, aluminate cement, sulphate aluminium cement and alkali slag cement one or both, three kinds, four kinds.
Light porous self heat-preserving concrete building block the most according to claim 1, it is characterised in that: described foaming agent be in hydrogen peroxide, aluminium powder, potassium permanganate one or both, three kinds.
Light porous self heat-preserving concrete building block the most according to claim 1, it is characterised in that: described Bagasse-cellulose water content is less than 5%.
Light porous self heat-preserving concrete building block the most according to claim 1, it is characterised in that: after described building waste residue grinds, cross 300 mesh standard sieve screenings.
6. the preparation method of the light porous self heat-preserving concrete building block as described in any one of claim 1-5, it is characterised in that: comprise the following steps:
(1) by cement, building waste residue, flyash, quick lime, titanium gypsum powder and accelerator mix homogeneously；
(2) pretreated Bagasse-cellulose, nano aluminium oxide, nano-calcium carbonate are added to ultrasonic disperse in the ethanol solution containing mass fraction 0.4-0.6% silane resin acceptor kh-550 and uniformly, stir 3-4 minute mix homogeneously of mixing in dried addition step mixture (1)；
(3) after foaming agent, water reducer are mixed homogeneously with appropriate water, add step mixture (2) stirs in cast blender and make slurry, slurry is entered mould, makes normal pressure natural curing after the shape of requirement, curing time is not less than 10 days, obtains energy-saving light-weight porous concrete building blocks.
The preparation method of light porous self heat-preserving concrete building block the most according to claim 6, it is characterised in that: the light porous self heat-preserving concrete building block that (3) step obtains, heat conductivity is not more than 0.7W/m K, and proportion is not more than 1200kg/m3, comprcssive strength is not less than 5MPa, 25 freeze-thaw cycle of frost resistance.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109293312A (en) * | 2018-11-19 | 2019-02-01 | 广西科技大学 | A kind of cracking resistance regeneration concrete and preparation method thereof |
| CN109400070A (en) * | 2018-11-23 | 2019-03-01 | 广西科技大学 | A kind of light microporous sound-absorbing concrete inner partition plate and preparation method thereof |
| CN111848004A (en) * | 2020-07-29 | 2020-10-30 | 湖州南浔兴云建材有限公司 | Method for preparing heat-insulation building block by efficiently utilizing fly ash |
| CN111925165A (en) * | 2020-07-23 | 2020-11-13 | 余庆县君余新型建材有限责任公司 | Building waste concrete block and preparation method thereof |
| CN112723830A (en) * | 2021-01-06 | 2021-04-30 | 蔡琳洁 | Manufacturing process of building anti-seismic building concrete block |
| CN113264718A (en) * | 2021-06-11 | 2021-08-17 | 章建芒 | Assembled building structure insulation board and preparation method thereof |
| CN113982180A (en) * | 2021-11-24 | 2022-01-28 | 云南汇益环保科技有限公司 | Lightweight porous self-insulation concrete block and preparation method thereof |
| CN115849852A (en) * | 2022-12-07 | 2023-03-28 | 贺州市自然资源局 | Light partition plate prepared from potassium feldspar flotation slag |
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| CN101386494A (en) * | 2008-10-30 | 2009-03-18 | 盐城工学院 | Composite gelate material and preparation method thereof |
| CN101844883A (en) * | 2010-01-28 | 2010-09-29 | 汪超 | Novel composite ecological cement and product application thereof |
| CN102775184B (en) * | 2012-08-16 | 2014-03-19 | 安徽建鑫新型墙材科技有限公司 | Preparation method of high-performance gas-filling building block composite material |
| CN102995475B (en) * | 2012-11-16 | 2014-09-03 | 昆明理工大学 | Extraction method of bagasse cellulose |
| CN104402500A (en) * | 2014-11-04 | 2015-03-11 | 张桂华 | Lightweight concrete |
| CN105036792A (en) * | 2015-07-11 | 2015-11-11 | 张信芳 | Novel carbon-fiber ceramsite aerated concrete block |
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| CN109293312A (en) * | 2018-11-19 | 2019-02-01 | 广西科技大学 | A kind of cracking resistance regeneration concrete and preparation method thereof |
| CN109400070A (en) * | 2018-11-23 | 2019-03-01 | 广西科技大学 | A kind of light microporous sound-absorbing concrete inner partition plate and preparation method thereof |
| CN109400070B (en) * | 2018-11-23 | 2021-09-24 | 广西科技大学 | Lightweight microporous sound-absorbing concrete inner partition plate and manufacturing method thereof |
| CN111925165A (en) * | 2020-07-23 | 2020-11-13 | 余庆县君余新型建材有限责任公司 | Building waste concrete block and preparation method thereof |
| CN111848004A (en) * | 2020-07-29 | 2020-10-30 | 湖州南浔兴云建材有限公司 | Method for preparing heat-insulation building block by efficiently utilizing fly ash |
| CN112723830A (en) * | 2021-01-06 | 2021-04-30 | 蔡琳洁 | Manufacturing process of building anti-seismic building concrete block |
| CN113264718A (en) * | 2021-06-11 | 2021-08-17 | 章建芒 | Assembled building structure insulation board and preparation method thereof |
| CN113982180A (en) * | 2021-11-24 | 2022-01-28 | 云南汇益环保科技有限公司 | Lightweight porous self-insulation concrete block and preparation method thereof |
| CN113982180B (en) * | 2021-11-24 | 2023-02-24 | 云南汇益环保科技有限公司 | Porous self preservation temperature concrete block of light |
| CN115849852A (en) * | 2022-12-07 | 2023-03-28 | 贺州市自然资源局 | Light partition plate prepared from potassium feldspar flotation slag |
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