CN101481237A - Preparation of phase change heat storing heat preserving porous building block - Google Patents
Preparation of phase change heat storing heat preserving porous building block Download PDFInfo
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- CN101481237A CN101481237A CNA2009100208174A CN200910020817A CN101481237A CN 101481237 A CN101481237 A CN 101481237A CN A2009100208174 A CNA2009100208174 A CN A2009100208174A CN 200910020817 A CN200910020817 A CN 200910020817A CN 101481237 A CN101481237 A CN 101481237A
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- building block
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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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/02—Agglomerated materials, e.g. artificial aggregates
- C04B18/027—Lightweight materials
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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
- C04B28/04—Portland 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/0068—Ingredients with a function or property not provided for elsewhere in C04B2103/00
- C04B2103/0071—Phase-change materials, e.g. latent heat storage materials used in concrete compositions
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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
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
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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
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
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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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- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention discloses a method for preparing a phase-change heat-accumulation heat-insulation porous building block. Raw materials including cement, flyash, sand, stone powder, water, rice hulls and a composite phase-change material are made into various standard building blocks by a building block forming machine. The heat-accumulation heat-insulation building block with volume height from 800 kg/m<3> to 1500 kg/m<3> and the pressure resistant strength from 3.2 MPa to 6.4 MPa can be made by adjusting the mixture ratio of the raw materials.
Description
Technical field
The present invention relates to a kind of preparation of new type block, be specifically related to a kind of preparation method of phase change heat storing heat preserving porous building block.
Background technology
The main at present ordinary fired brick that adopts of heliogreenhouse, heat insulation effect is relatively poor; Vitrified brick is big owing to its land seizure amount simultaneously, the high shortcoming that consumes energy, and country has assigned file and all it has been banned in 2010, so holllow building block becomes follow-on main materials for wall.
At present, holllow building block is used very extensive, especially insulation blocks.China has many patent applications about insulation blocks, for example, Chinese patent application (application number: 200710190670.4, open day: on April 30th, 2008), this application was slurry, insulation to be gathered materials, be incubated the self-thermal insulation wall building block of a kind of excellent property of the compound and acquisition of filler three.This building block has the ultimate compression strength height, reaches greater than 10MPa, and thermal conductivity is less than 0.020W/m.K, frost resistance, impervious good, advantages such as shrinking percentage is less, easy construction.Can directly make the high-strength self thermal insulation wall building block that exterior wall uses.And for example, (200720039441.8, open day: on January 2nd, 2008), disclose a kind of heat insulation building block, comprised the weighting material that is provided with in foraminous building block and the hole, the bricklaying surface that characteristics are perpendicular to building block was provided with porose Chinese patent; Be filled with lagging material in the cylindrical void wherein, this hole is between hollow hole and building block sidewall, or between hollow hole; Or be filled with lagging material in two cylindrical voids wherein, and this two cylindrical void lays respectively between hollow hole and the building block sidewall, or a cylindrical void is between hollow hole, and a cylindrical void is between hollow hole and building block sidewall.This application mainly reaches the insulation purpose by the weighting material in foraminous building block and the hole.
Along with development of science and technology, lagging material, heat-preserving wall are also in continuous progress, many buildingss have also adopted corresponding lagging material, to reduce the power consumption of building, according to the data-searching that the applicant carried out, also there is not at present a kind of building block that has the heat storing and heat preserving performance itself to be used for producing, if lagging material and traditional building block can be combined, produce a kind of building block that has the heat storing and heat preserving performance itself, this building block can be controlled the buildings fluctuations in indoor temperature, will have very significant meaning for the development of building block.
Summary of the invention
Only be incubated the problem of not accumulation of heat at present building block, the objective of the invention is to, a kind of preparation method of phase change heat storing heat preserving porous building block is provided, the building block that this method makes has the heat storing and heat preserving performance.
In order to realize above-mentioned task, the present invention adopts following technical solution:
A kind of preparation method of phase change heat storing heat preserving porous building block is characterized in that, specifically comprises the following steps:
1) it is melt-blended at first n-butyl stearate and paraffin to be pressed the weight ratio of 4:6～5:5, makes composite phase-change material;
2) then water content is lower than 3% rice husk and composite phase-change material and mixes by the weight ratio of 1:1～1:2, heated and stirred mixes composite phase-change material and rice husk after the fusing, makes the composite phase-change light skeletal;
3) the composite phase-change light skeletal is mixed with cement, flyash, fine sand, stone flour and water in an amount of ratio, put into stirrer and stir, make standard block through block machine.
Adopt the phase change heat storing heat preserving porous building block of the present invention's preparation, starting material are simple and easy to, and by the different mould models of different proportionings and block machine, can obtain thermal conductivity at 0.3～0.9W/ (m * ℃), heat storage coefficient is 15.6～25.5kJ/kg, and unit weight is at 800～1500kg/m
3, ultimate compression strength is at the holllow building block of the various models of 3.2～6.4MPa.
Description of drawings
Fig. 1 is that the specification that adopts method of the present invention to prepare is the standard porous building-brick synoptic diagram of 240mm * 115mm * 90mm, and the hole ratio of building block is 30%.
The present invention is described in further detail below in conjunction with embodiment.
Embodiment
There are problems in the effective combination of phase change material and material of construction, a wherein main reason is, for the composite phase-change material of preparation and material of construction when combining, some seepage phenomenons can appear, the intensity and other performances that cause being prepared into concrete segment reduce, and this is a problem that must solve.For the standard porous building-brick that the method that obtains the application prepares, the applicant just carries out a large amount of experiments at the beginning of 2008, update, and selects different solid support materials to experimentize, and has finally found out the prescription that is suitable for the preparation standard porous building-brick.
Experimental example 1: get clay, composite phase-change material, cement, flyash, lime, gypsum, pearlstone and water and mix stirring making test block, its medium clay soil, composite phase-change material, cement, flyash, lime, gypsum, pearlstone and quality are than being 12:12:15:40:5:3:10:15, the test block thermal conductivity that obtains is less, be 0.586W/ (m * ℃), though adhere to specification, but prepared compression strength of building block is too low, have only 1.2Mpa, can not satisfy the requirement of strength of greenhouse north wall body; Simultaneously, the building block of adopting this mode to prepare, composite phase-change material can exosmosis occur about 50 ℃ of temperature.
Experimental example 2: mix earlier, allow the carrier of clay as composite phase-change material with clay and phase change material.Add cement, flyash, lime, gypsum, sand and water again and stir the making test block, its medium clay soil, composite phase-change material, cement, flyash, lime, gypsum, sand and quality are than being 1:2:4:4:1:1:7:2, the test block thermal conductivity that obtains is 0.730W/ (m * ℃), but ultimate compression strength has 1.6MPa, lower, the requirement of strength unit weight that can not satisfy greenhouse north wall body is 1250kg/m
3And about 70 ℃ exosmosis appears.
Experimental example 3: consider that rice husk is the waste in a kind of agriculture production, and be a kind of porous material to have good adsorption,, make the phase transformation aggregate so adopt the carrier of rice husk as composite phase-change material.Mix with rice husk and composite phase-change material earlier, add cement, flyash, lime, gypsum, slag and water again and stir the making test block, wherein rice husk, composite phase-change material, cement, flyash, lime, gypsum, slag and quality are than being 1:2:4:4:1:1:5:2, the test block ultimate compression strength that obtains is also lower, have only 2.7MPa, unit weight is 1050kg/m
3, thermal conductivity is 0.790W/ (m * ℃), and does not also have exosmosis when high temperature (110 ℃) heats.
Experimental example 4: adopt the carrier of rice husk as phase change material, be mixed and made into the phase transformation aggregate with composite phase-change material, add cement, flyash, lime, gypsum, stone flour and water again and stir the making test block, its medium clay soil, composite phase-change material, cement, flyash, lime, gypsum, stone flour and quality are than being 1:2:4:4:1:1:5:2, the test block ultimate compression strength that obtains reaches 5.1MPa, satisfy the requirement of strength of heliogreenhouse single layer structure, thermal conductivity is 0.799W/ (m * ℃), and does not have exosmosis when high temperature (110 ℃) heats.
Through above-mentioned repeatedly experiment, the formula material of building block is defined as rice husk, composite phase-change material, cement, flyash, fine sand, stone flour and water the most at last, and requires the water content of rice husk to be lower than 3%.
Preparation embodiment 1:, make composite phase-change material with paraffin and n-butyl stearate weight ratio fusing mixing according to 6:4; Again the composite phase-change material made and the rice husk weight ratio according to 1:1 is mixed, heated and stirred, composite phase-change material and rice husk after the fusing are mixed, be placed to normal temperature then, make the composite phase-change light skeletal, above-mentioned composite phase-change light skeletal and cement, flyash, fine sand, stone flour, water are mixed in stirrer according to the 1:12:4:6:8:4 weight ratio, make the standard holllow building block with block machine.
The holllow building block that obtains according to the preparation method of present embodiment as shown in Figure 1, proof after testing, its ultimate compression strength is 5.5MPa, unit weight is at 1200kg/m
3, thermal conductivity is 0.811W/ (m * ℃), heat storage coefficient is 15.6kJ/kg.
Preparation embodiment 2: paraffin and n-butyl stearate is melt-blended evenly according to the weight ratio of 6:4, make composite phase-change material; To make phase change material and rice husk again and mix according to the weight ratio of 2:1, heated and stirred mixes composite phase-change material and rice husk after the fusing, places normal temperature then, makes the composite phase-change light skeletal; Above-mentioned composite phase-change light skeletal and cement, flyash, fine sand, stone flour, water are mixed in stirrer according to the 1:6:2:3:4:2 weight ratio, make the standard holllow building block with block machine.
The holllow building block that obtains according to the preparation method of present embodiment as shown in Figure 1, proof after testing, its ultimate compression strength is 3.4MPa, unit weight is at 1443kg/m
3, thermal conductivity is 0.703W/ (m * ℃), heat storage coefficient is 25.5kJ/kg.
Preparation embodiment 3: paraffin and n-butyl stearate is melt-blended evenly according to the weight ratio of 5:5, make phase change material; Phase change material and the rice husk weight ratio according to 1:1 is mixed, heated and stirred mixes composite phase-change material and rice husk after the fusing, places normal temperature, makes the composite phase-change light skeletal again; Above-mentioned composite phase-change light skeletal and cement, flyash, fine sand, stone flour, water are mixed in stirrer according to the 1:6:2:3:4:2 weight ratio, make holllow building block with block machine.
The holllow building block that obtains according to the preparation method of present embodiment as shown in Figure 1, proof after testing, its ultimate compression strength is 4.6MPa, unit weight is at 975kg/m
3, thermal conductivity is 0.792W/ (m * ℃), heat storage coefficient is 21.34kJ/kg.
Be preferred embodiment of the present invention more than, the invention is not restricted to these embodiment, certainly, can also make the holllow building block of various models by the different mould models of different proportionings and block machine.
Need be pointed out that further that according to content disclosed by the invention, those skilled in the art should recognize that increase, replacement to technical characterictic is done all belong to protection scope of the present invention under the situation that does not break away from technical characterictic that the present invention provides and scope.
Claims (2)
1, a kind of preparation method of phase change heat storing heat preserving porous building block is characterized in that, specifically comprises the following steps:
1) it is melt-blended at first n-butyl stearate and paraffin to be pressed the weight ratio of 4:6～5:5; Make composite phase-change material;
2) then water content is lower than 3% rice husk and composite phase-change material and mixes by the weight ratio of 1:1～1:2, heated and stirred mixes composite phase-change material and rice husk after the fusing, makes the composite phase-change light skeletal;
3) the composite phase-change light skeletal is mixed with cement, flyash, fine sand, stone flour and water in an amount of ratio, put into stirrer and stir, make standard block through block machine.
2, the method for claim 1 is characterized in that: described cement is 32.5# or 42.5# ordinary Portland cement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100208174A CN101481237B (en) | 2009-01-06 | 2009-01-06 | Preparation of phase change heat storing heat preserving porous building block |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100208174A CN101481237B (en) | 2009-01-06 | 2009-01-06 | Preparation of phase change heat storing heat preserving porous building block |
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| CN101481237A true CN101481237A (en) | 2009-07-15 |
| CN101481237B CN101481237B (en) | 2011-09-28 |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101709215A (en) * | 2009-08-11 | 2010-05-19 | 张世忠 | Rice husk ash phase-change energy-storing thermal insulation material |
| CN101805157A (en) * | 2010-04-08 | 2010-08-18 | 盐城东方新格节能科技有限公司 | Intelligent temperature-controlled hidden-honeycomb concrete energy-saving building block |
| CN101649666B (en) * | 2009-09-04 | 2011-04-06 | 沈阳隆发电热产品制造有限公司 | Solar automatic temperature control foamed cement building block for construction and production method thereof |
| GB2474578A (en) * | 2009-10-15 | 2011-04-20 | Michael Trevor Berry | Latent heat storage material formulations |
| CN101691483B (en) * | 2009-10-14 | 2011-07-27 | 清华大学 | Method for preparing sodium sulfate/silicon oxide shaped phase change material by using rice hull ash as raw material |
| CN102303958A (en) * | 2011-05-17 | 2012-01-04 | 武汉理工大学 | Rice hull ash-paraffin wax phase-change aggregate and preparation method thereof |
| CN102390948A (en) * | 2011-08-25 | 2012-03-28 | 暨南大学 | Compound phase change energy-storing material and preparation method thereof |
| CN102409798A (en) * | 2011-09-09 | 2012-04-11 | 樊杰俊 | Self-insulating brick |
| CN102417330A (en) * | 2011-08-25 | 2012-04-18 | 暨南大学 | High performance phase change energy storage core material and sandwiched constructional wallboard prepared from same |
| CN102531533A (en) * | 2010-12-20 | 2012-07-04 | 武汉优特斯节能建材研究所 | Building foamed cement phase-change heat-preserving board (building block) and manufacturing method thereof |
| CN104649641A (en) * | 2015-02-09 | 2015-05-27 | 同济大学 | Chopped straw fiber-toughened inorganic thermal insulation mortar and using method thereof |
| CN111718170A (en) * | 2020-05-06 | 2020-09-29 | 安徽紫荆花壁纸股份有限公司 | Manufacturing method of phase-change energy-storage wall surface decorative plate material |
| CN115010411A (en) * | 2022-05-05 | 2022-09-06 | 宁夏洁境科技有限公司 | Heat storage building block and preparation method and application thereof |
| CN115028392A (en) * | 2022-05-05 | 2022-09-09 | 宁夏洁境科技有限公司 | High-strength fly ash-based heat storage building block and preparation method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101255331A (en) * | 2008-02-20 | 2008-09-03 | 西北农林科技大学 | Composite phase-change heat-storage material and preparation thereof |
| CN101302092A (en) * | 2008-07-01 | 2008-11-12 | 王昌雄 | Limestone powder (porcelain granule) aseismatic heat insulation type hollow small building block and preparation thereof |
-
2009
- 2009-01-06 CN CN2009100208174A patent/CN101481237B/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101709215A (en) * | 2009-08-11 | 2010-05-19 | 张世忠 | Rice husk ash phase-change energy-storing thermal insulation material |
| CN101649666B (en) * | 2009-09-04 | 2011-04-06 | 沈阳隆发电热产品制造有限公司 | Solar automatic temperature control foamed cement building block for construction and production method thereof |
| CN101691483B (en) * | 2009-10-14 | 2011-07-27 | 清华大学 | Method for preparing sodium sulfate/silicon oxide shaped phase change material by using rice hull ash as raw material |
| GB2474578A (en) * | 2009-10-15 | 2011-04-20 | Michael Trevor Berry | Latent heat storage material formulations |
| CN101805157A (en) * | 2010-04-08 | 2010-08-18 | 盐城东方新格节能科技有限公司 | Intelligent temperature-controlled hidden-honeycomb concrete energy-saving building block |
| CN101805157B (en) * | 2010-04-08 | 2014-12-10 | 华仁建设集团有限公司 | Intelligent temperature-controlled hidden-honeycomb concrete energy-saving building block |
| CN102531533A (en) * | 2010-12-20 | 2012-07-04 | 武汉优特斯节能建材研究所 | Building foamed cement phase-change heat-preserving board (building block) and manufacturing method thereof |
| CN102303958A (en) * | 2011-05-17 | 2012-01-04 | 武汉理工大学 | Rice hull ash-paraffin wax phase-change aggregate and preparation method thereof |
| CN102417330A (en) * | 2011-08-25 | 2012-04-18 | 暨南大学 | High performance phase change energy storage core material and sandwiched constructional wallboard prepared from same |
| CN102390948A (en) * | 2011-08-25 | 2012-03-28 | 暨南大学 | Compound phase change energy-storing material and preparation method thereof |
| CN102409798A (en) * | 2011-09-09 | 2012-04-11 | 樊杰俊 | Self-insulating brick |
| CN104649641A (en) * | 2015-02-09 | 2015-05-27 | 同济大学 | Chopped straw fiber-toughened inorganic thermal insulation mortar and using method thereof |
| CN111718170A (en) * | 2020-05-06 | 2020-09-29 | 安徽紫荆花壁纸股份有限公司 | Manufacturing method of phase-change energy-storage wall surface decorative plate material |
| CN115010411A (en) * | 2022-05-05 | 2022-09-06 | 宁夏洁境科技有限公司 | Heat storage building block and preparation method and application thereof |
| CN115028392A (en) * | 2022-05-05 | 2022-09-09 | 宁夏洁境科技有限公司 | High-strength fly ash-based heat storage building block and preparation method thereof |
| CN115010411B (en) * | 2022-05-05 | 2023-01-31 | 宁夏洁境科技有限公司 | Heat storage building block and preparation method and application thereof |
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| CN101481237B (en) | 2011-09-28 |
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