CN106007504A - Light micropore energy-saving and environment-friendly concrete block and preparation method thereof - Google Patents
Light micropore energy-saving and environment-friendly concrete block and preparation method thereof Download PDFInfo
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- CN106007504A CN106007504A CN201610336112.3A CN201610336112A CN106007504A CN 106007504 A CN106007504 A CN 106007504A CN 201610336112 A CN201610336112 A CN 201610336112A CN 106007504 A CN106007504 A CN 106007504A
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- saving
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- friendly concrete
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Classifications
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/52—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement
- B28B1/525—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement containing organic fibres, e.g. wood fibres
-
- 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
- C04B28/04—Portland cements
-
- 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
-
- 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
-
- 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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/02—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding chemical blowing agents
-
- 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
- C04B2111/40—Porous or lightweight materials
Abstract
The invention relates to a light micropore energy-saving and environment-friendly concrete block and a preparation method thereof. The light micropore energy-saving and environment-friendly concrete block is prepared from the following raw materials in parts by weight: 30-40 parts of cement, 14-20 parts of water, 20-25 parts of ceramsite, 0.05-0.2 part of active cotton linter, 0.05-0.15 part of a mixed additive, 15-20 parts of fly ash and perlite, 0.8-1.2 parts of an accelerator, 0.5-1 part of manganese dioxide, 2-4 parts of a foaming agent, and 0.3-0.5 part of a water reducing agent. Building waste materials are utilized effectively, consumption of non-renewable clay resources is reduced, and social and economic benefits are improved; and the active cotton linter which is treated specially is added, the raw materials are screened, the ratio is quantitative and optimal, the uniformity of a structural system of the concrete block is improved, and therefore, the light micropore energy-saving and environment-friendly concrete block is stable in strength and uniform in distribution of a pore structure, facilitates compacted molding and has good heat-insulation property.
Description
Technical field
The present invention relates to the technical field of energy-saving building materials, build particularly to a kind of light microporous energy-saving and environmentally-friendly concrete
Block and preparation method thereof.
Background technology
Due to being continuously increased and the high development of industrial level of China's population, natural resources is consumed excessively, resource
Deficient problem highlights day by day, and resource, energy crisis are triggered at any moment.Building energy consumption accounts for significant proportion in national economy total energy consumption,
Therefore developed country just begins to focus on Building Energy-saving in eighties of last century the seventies.But, for a long time due to China's economy
Level is low, and building standard is relatively low, and building energy consumption is huge, and environmental conservation falls behind.The use of a large amount of clay bricks, not only expends the most not
Reproducible land resource, expends a large amount of heat energy simultaneously, produces great amount of carbon dioxide and causes environmental pollution, to society's energy supply
Define huge pressure.Along with increase in demand and the progress of society of social resources, how under the conditions of low cost
Realizing land resource saving, reduce energy consumption, it is that all insiders are badly in need of that Appropriate application refuse produces the product of environmental protection
The problem solved.Retrain to this end, China has issued and implemented some relevant legal standards and guide: " civil building engineering
Energy efficiency quality administration Regulations for Supervision ", " Civil Building Energy Conservation regulations ", " civil building energy saving engineering quality surveillance work directive/guide ".
The heat of construction exterior wall fencing construction scatters and disappears the principal element being to cause building high energy consumption, so reducing the core of building energy consumption
The heart is exactly that heating, insulation and exterior wall enclosure structure to building are reformed.It is a large amount of that building uses sintered clay brick to consume
Non-renewable clay resource, wastes a large amount of cultivated area.Therefore, to fundamentally realize reducing the purpose of building energy consumption,
It is necessary for eliminating traditional construction material (sintering solid brick), Development of Novel energy-saving wall material.
At present, along with the promotion of materials for wall reform, novel wall material mainly has: normal concrete building block, aerating mix
Solidifying earth building blocks, gypsum block etc..Normal concrete building block has from heavy and light, and thermal property is good, and anti-seismic performance is good, builds by laying bricks or stones conveniently,
Degree of plainness for wall surface is good, high efficient construction, can be not only used for non-load bearing wall, and the building block of higher-strength grade also can be used
Load bearing wall in tier building.Its preparation process can make full use of the various abundant natural light-weight aggregate resource of China and some industry
Waste residue, building waste residue are raw material, to reducing the production cost of construction material and reducing environmental pollution, have good society and warp
The Ji plurality of advantages such as double benefit and be widely used in building field, but concrete segment volume to weight ratio is relatively big, easily produces
Contraction distortion, cracky, the shortcomings such as thermal property is poor restrict its application under construction, to the structural member of load-bearing, framework and base
Plinth brings huge load, is not suitable for the demand of the most a large amount of skyscraper.Air-entrained concrete building block has lightweight, insulation, resistance to
The good characteristics such as fire, sound insulation, are carried out using in engineering practice in a large number.The Aerated concrete products quality of China is not at present
Height, comprcssive strength is low, and dry shrinkage is big, and dimensional discrepancy is big, and the hydrated product that short time steam press maintenance is formed mostly is double alkaline
Hydrated calcium silicate, its Within Monominerals medium relative humidity around causes drying and dehydrating to cause bigger contraction occurring, at CO when reducing2
The calcite of high degree of dispersion will be resolved under effect, make comprcssive strength be substantially reduced.Simultaneously because the life of air entrained concrete material
Production. art mostly uses autoclave at high temperature maintenance, and maintenance processes energy consumption is many, is unfavorable for energy-conservation, greatly limit its range of application.Stone
Cream building block is easy because of its production technology, and gypsum solid garbage utilization rate is high and is promoted and uses, and meanwhile, it has fire prevention
The advantage such as property, efficiency of construction height, good processability, but also poor because of its resistance to water, and range is restricted, generally only as
Internal partition wall uses.
Along with the implementation of national environmental protection energy saving policy, due to reasons such as intensity is low, poor thermal insulation property, fire resistance differences, existing
Some materials for walls can not meet the requirement of Developing Energy-saving Construction, although and nanometer heat insulating material heat-proof quality is excellent, but by
Big in self fragility, the shortcoming that intensity is not enough also cannot be as wall self-thermal insulation material.In recent years, China carried forward vigorously city and changed
Making and Development of China's Urbanization, thus produce substantial amounts of construction waste, utilize the various lightweight aggregates that construction waste is prepared, lightweight aggregate has
Having dry density little, good heat insulating, sound-absorbing effect are high and have certain intensity and machinability, do not consume clay resource, system
Standby low power consumption and other advantages, and being promoted with its lightweight, insulation, energy-conservation excellent properties, be widely used in industry, public with
In residential architecture, oneself becomes China and widelys popularize and one of the New Building Materials that develop.
Summary of the invention
The technical problem to be solved in the present invention is: provide a kind of light microporous energy-saving and environmentally-friendly concrete building block and preparation side thereof
Method, effectively utilizes construction waste, reduces non-renewable clay resource consumption, improves economic results in society；The present invention adds
Through the active cotton short flannel of special handling, by raw-material screening, proportioning quantitative optimization, improve concrete segment structure
The uniformity of system so that it is intensity stabilization, air hole structure are evenly distributed, are prone to closely knit molding and have good heat insulation property
Energy.
The technical scheme solving above-mentioned technical problem is: a kind of light microporous energy-saving and environmentally-friendly concrete building block, its be by with
The raw material of lower parts by weight is made: cement 30-40 weight portion, water 14-20 weight portion, haydite 20-25 weight portion, active cotton short flannel
0.05-0.2 weight portion, additive package 0.05-0.15 weight portion, flyash and perlite 15-20 weight portion, accelerator altogether
0.8-1.2 weight portion, manganese dioxide 0.5-1 weight portion, foaming agent 2-4 weight portion and water reducer 0.3-0.5 weight portion；
Described haydite is that the construction waste fragment of brick produced with process of removing is fired for primary raw material and to be formed；
Described additive package be the one in Gypsum Fibrosum, calcium stearate, nano-calcium carbonate and quick lime, two kinds, three kinds or four
Kind；
Described active cotton short flannel is that the cotton linter that machinery is discongested is dried 1.5-2h, in 35-45 DEG C of constant temperature bar at 100-110 DEG C
With the ethylenediamine solution mixing 4-5h that mass fraction is 70-80% under part, cotton linter is 1 with the mass ratio of ethylenediamine solution:
1.8-2.2, obtain after drying.
Described cement is the mixture of portland cement, sulphate aluminium cement and alkali slag cement, mixing quality proportioning
For 3:1:1.
Described foaming agent is the mixed solution of hydrogen peroxide, aluminium powder and dodecyl sodium sulfate, hydrogen peroxide, aluminium powder and 12
The proportioning of sodium alkyl sulfonate is, 1:0.4-0.6:1.4-1.6.
Described water reducer is polycarboxylate water-reducer.
Described haydite particle diameter is 5-12mm.
The manufacture method that another solution is that above-mentioned light microporous energy-saving and environmentally-friendly concrete building block of the present invention, including
Following steps:
(1) cement, flyash, perlite, active cotton short flannel, water reducer and additive package are uniformly mixed according to a ratio；
(2) to the step (1) middle water mix homogeneously adding half weight；
(3) in step mixture (2), add haydite and manganese dioxide is uniformly mixed；
(4) in step mixture (3), add foaming agent stir with accelerator, add the water remaining half quality, stir
Mix uniformly, form cementitious mixtures；
(5) cementitious mixtures step (4) obtained adds vibration stirring in mould, makes the shape of requirement, and at cool place, normal pressure is supported
Protect and obtain light microporous energy-saving and environmentally-friendly concrete building block.
The heat conductivity of the light microporous energy-saving and environmentally-friendly concrete building block that (5) step obtains is not more than 0.7W/m K, apparent
Density is not more than 1200kg/m3, comprcssive strength is not less than 5MPa, and rupture strength is not less than 2MPa.
The collection that the present invention utilizes building waste residue to prepare gently expects that with cement, additive, accelerator, water is glue as implant
Ramming material and adjuvant, add the active cotton short flannel through special handling, blended stirring, vibration moulding, and wet method segmentation mixes, certainly
So maintenance and novel wall material of making, the effect having and advantage be: one is that the good heat preservation performance of building block, unit weight is low, intensity
Meet the advantages such as partition wall requirement, there is the most wide application prospect；Two is to produce light microporous energy-conserving and environment-protective with building waste residue
Type concrete segment, production process is simple, energy consumption is low, is applied to skyscraper, and Structural Engineering cost effectively reduces, building heat
Work performance improvement, energy consumption reduces, can accomplish energy-saving and environmental protection, economy, for lightweight green material；Three be prepare light microporous
Energy-saving concrete one hand tile 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 does not has waste discharge, removes
Stirring is outer almost without energy resource consumption, belongs to environment friendly technology.
Below, in conjunction with specific embodiments to the light microporous energy-saving and environmentally-friendly concrete building block of the present invention and preparation method thereof
Technical characteristic is further described.
Detailed description of the invention
Embodiment 1-embodiment 4: a kind of light microporous energy-saving and environmentally-friendly concrete building block, each proportioning raw materials and prepared block
Block index is shown in Table 1.
In table 1, haydite is that the construction waste fragment of brick produced with process of removing is fired for primary raw material and to be formed；Particle diameter is 5-12mm.
Active cotton short flannel is that the cotton linter that machinery is discongested is dried 1.5-2h at 105 DEG C, is immersed in quality and divides under 40 DEG C of constant temperatures
Number is the ethylenediamine solution 4-5h of 75%, and cotton linter is 1:2 with the mass ratio of ethylenediamine solution, obtains after drying.Cement is
Portland cement, sulphate aluminium cement, the mixture of alkali slag cement, its mixing quality proportioning 3:1:1.Foaming agent is dioxygen
The mixed solution of water, aluminium powder and dodecyl sodium sulfate, the quality proportioning of hydrogen peroxide, aluminium powder and dodecyl sodium sulfate is, 1:
0.5:1.5.Water reducer is polycarboxylate water-reducer.
Embodiment 5: the manufacture method of a kind of light microporous energy-saving and environmentally-friendly concrete building block as described in embodiment 1-4, bag
Include following steps:
(1) cement, flyash, perlite, active cotton short flannel, water reducer and additive package are uniformly mixed according to a ratio；
(2) to the step (1) middle water mix homogeneously adding half weight；
(3) in step mixture (2), add haydite and manganese dioxide is uniformly mixed；Manganese dioxide decomposes as foaming agent
The catalyst of gas processed；
(4) treat that adding foaming agent in the mixture during step is (3) stirs with accelerator, add the water of residue half quality, stir
Mix uniformly, form cementitious mixtures；
(5) cementitious mixtures step (4) obtained adds vibration stirring in mould, makes the shape of requirement, and at cool place, normal pressure is supported
Protecting 28 days and obtain light microporous energy-saving and environmentally-friendly concrete building block, the block interiors obtained has substantial amounts of micropore, and heat conductivity is not
More than 0.7W/m K, apparent density is not more than 1200kg/m3, comprcssive strength is not less than 5MPa, and rupture strength is not less than 2MPa.
Above example is only presently preferred embodiments of the present invention, and the structure of the present invention is not limited to what above-described embodiment was enumerated
Form, all made within the spirit and principles in the present invention any amendment, equivalent etc., should be included in the guarantor of the present invention
Within the scope of protecting.
Claims (7)
1. a light microporous energy-saving and environmentally-friendly concrete building block, it is characterised in that: it is made up of the raw material of following parts by weight:
Cement 30-40 weight portion, water 14-20 weight portion, haydite 20-25 weight portion, active cotton short flannel 0.05-0.2 weight portion, mixing add
Add agent 0.05-0.15 weight portion, flyash and perlite 15-20 weight portion, accelerator 0.8-1.2 weight portion, manganese dioxide altogether
0.5-1 weight portion, foaming agent 2-4 weight portion and water reducer 0.3-0.5 weight portion；
Described haydite is that the construction waste fragment of brick produced with process of removing is fired for primary raw material and to be formed；
Described additive package be the one in Gypsum Fibrosum, calcium stearate, nano-calcium carbonate and quick lime, two kinds, three kinds or four
Kind；
Described active cotton short flannel is that the cotton linter that machinery is discongested is dried 1.5-2h, in 35-45 DEG C of constant temperature bar at 100-110 DEG C
With the ethylenediamine solution mixing 4-5h that mass fraction is 70-80% under part, cotton linter is 1 with the mass ratio of ethylenediamine solution:
1.8-2.2, obtain after drying.
Light microporous energy-saving and environmentally-friendly concrete building block the most according to claim 1, it is characterised in that: described cement is silicon
The mixture of acid salt cement, sulphate aluminium cement and alkali slag cement, mixing quality proportioning is 3:1:1.
Light microporous energy-saving and environmentally-friendly concrete building block the most according to claim 1, it is characterised in that: described foaming agent is
The mixed solution of hydrogen peroxide, aluminium powder and dodecyl sodium sulfate, the proportioning of hydrogen peroxide, aluminium powder and dodecyl sodium sulfate is, 1:
0.4-0.6:1.4-1.6。
Light microporous energy-saving and environmentally-friendly concrete building block the most according to claim 1, it is characterised in that: described water reducer is
Polycarboxylate water-reducer.
Light microporous energy-saving and environmentally-friendly concrete building block the most according to claim 1, it is characterised in that: described haydite particle diameter
For 5-12mm.
6. a manufacture method for the light microporous energy-saving and environmentally-friendly concrete building block as described in any one of claim 1-5, it is special
Levy and be: comprise the following steps:
(1) cement, flyash, perlite, active cotton short flannel, water reducer and additive package are uniformly mixed according to a ratio；
(2) to the step (1) middle water mix homogeneously adding half weight；
(3) in step mixture (2), add haydite and manganese dioxide is uniformly mixed；
(4) in step mixture (3), add foaming agent stir with accelerator, add the water remaining half quality, stir
Mix uniformly, form cementitious mixtures；
(5) cementitious mixtures step (4) obtained adds vibration stirring in mould, makes the shape of requirement, and at cool place, normal pressure is supported
Protect and obtain light microporous energy-saving and environmentally-friendly concrete building block.
The manufacture method of light microporous energy-saving and environmentally-friendly concrete building block the most according to claim 6, it is characterised in that: step
(5) the heat conductivity of the light microporous energy-saving and environmentally-friendly concrete building block obtained is not more than 0.7W/m K, and apparent density is not more than
1200kg/m3, comprcssive strength is not less than 5MPa, and rupture strength is not less than 2MPa.
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| CN201610336112.3A CN106007504A (en) | 2016-05-20 | 2016-05-20 | Light micropore energy-saving and environment-friendly concrete block and preparation method thereof |
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Family
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106946528A (en) * | 2017-04-11 | 2017-07-14 | 夏胜军 | A kind of energy-conserving and environment-protective heat-insulating construction material |
| CN111217579A (en) * | 2020-02-27 | 2020-06-02 | 河南兴安新型建筑材料有限公司 | Light sand-free backfill material for ground heating backfill and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106946528A (en) * | 2017-04-11 | 2017-07-14 | 夏胜军 | A kind of energy-conserving and environment-protective heat-insulating construction material |
| CN111217579A (en) * | 2020-02-27 | 2020-06-02 | 河南兴安新型建筑材料有限公司 | Light sand-free backfill material for ground heating backfill and preparation method thereof |
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