CN106007782B - Light porous self heat-preserving concrete building block and preparation method thereof - Google Patents

Light porous self heat-preserving concrete building block and preparation method thereof Download PDF

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Publication number
CN106007782B
CN106007782B CN201610336111.9A CN201610336111A CN106007782B CN 106007782 B CN106007782 B CN 106007782B CN 201610336111 A CN201610336111 A CN 201610336111A CN 106007782 B CN106007782 B CN 106007782B
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weight
parts
building block
concrete building
self heat
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CN106007782A (en
Inventor
谭春雷
邓宇
叶雁冰
曾鑫
曹瑞丹
张友顺
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Guangxi University of Science and Technology
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Guangxi University of Science and Technology
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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
    • 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
    • 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
    • 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 present invention relates to a kind of light porous self heat-preserving concrete building blocks and preparation method thereof, are to be prepared from the following raw materials in parts by weight：20 32 parts by weight of cement, 20 35 parts by weight of building waste residue, 3 18 parts by weight of Bagasse-cellulose, 10 25 parts by weight of flyash, 0.02 1 parts by weight of quick lime, 3 5.5 parts by weight of nano aluminium oxide, 0.2 1.6 parts by weight of nano-calcium carbonate, 13 parts by weight of titanium gypsum powder, 0.2 0.5 parts by weight of accelerator, 7 15 parts by weight of foaming agent, 0.1 0.5 parts by weight of water-reducing agent and appropriate amount of water.The present invention efficiently uses bagasse fibre, construction waste, it reduces and non-renewable clay resource is consumed, realize that construction waste recycles, and prepared from heavy and light, the light porous self heat-preserving concrete building block preparation method that intensity is high, thermal property is good using reasonable raw material proportioning, improve economic results in society.

Description

Light porous self heat-preserving concrete building block and preparation method thereof
Technical field
The present invention relates to the technical field of energy-saving building materials, more particularly to a kind of light porous self heat-preserving concrete building block And preparation method thereof.
Background technology
With Chinese society rapid development of economy, the building energy consumption total amount in China is also in constantly soaring, China in 2014 Building energy consumption accounts for about the 30% of energy aggregate consumption.Therefore, Building Energy-saving Work is carried out, scientific and reasonable reduction building energy consumption, For implementing energy-saving and emission-reduction strategy, builds a resource-conserving society, realize that sustainable development is of great significance.In building energy consumption In, the heat loss of construction exterior wall fencing construction is to cause the principal element of building high energy consumption, thus, adopted to building It is the key that realize building energy efficiency target that warm, heat preservation and exterior wall enclosure structure, which carry out innovation,.
For a long time since China's economic level is low, building standard is relatively low, and environmental protection consciousness is not strong, largely makes in building It uses clay brick as building masonry material, leads to the waste of a large amount of non-renewable land resources and huge energy consumption.In recent years Come, with the propulsion that national environmental protection works, the usage amount of clay brick is reduced year by year, and some areas are forbidden to use clay The policy of fired brick has also been released and in the process of implementation.Therefore, the substitution of the building material of clay brick is found Have become the inexorable trend of building trade.Dinas brickes, cement block, building-block, air-entrained concrete building block etc. are a series of Building material has been used under construction.
Since the patent that U.S. Ha Qixun in 1866 obtains first part of production building-block, concrete hollow block is built It builds in the national extensive use in more than 100, the whole world.Developed country puts into largely in terms of the heat-insulating property of concrete novel building block It studies and acquires a great achievement.The TB type composite thermal insulation building blocks gone out such as American Studies；It is compound that Canadian Studies goes out IMSI Heat insulating building block；Poland works out U type biting connecions composite heat insulation blocks；Finland works out sandwich style composite thermal insulation Building block etc..For the research and development situation at the early-stage of current China's self-insulating wall material, develop meet China " energy-saving and environmental protection, every The novel self-heat preserving walling that heat heat preservation " requires is the Main way of current walling masonry research.
Invention content
The technical problem to be solved by the present invention is to：A kind of light porous self heat-preserving concrete building block and its preparation side are provided Method is reduced and is consumed to non-renewable clay resource to efficiently use bagasse fibre, construction waste, realizes construction waste It recycles, and is prepared from heavy and light, the light porous self-heat conserving coagulation that intensity is high, thermal property is good using reasonable raw material proportioning Earth building blocks preparation method improves economic results in society.
Solving the technical solution of above-mentioned technical problem is：A kind of light porous self heat-preserving concrete building block, is by following The raw material of parts by weight is made：Cement 20-32 parts by weight, building waste residue 20-35 parts by weight, Bagasse-cellulose 3-18 weight Part, flyash 10-25 parts by weight, quick lime 0.02-1 parts by weight, nano aluminium oxide 3-5.5 parts by weight, nano-calcium carbonate 0.2- 1.6 parts by weight, titanium gypsum powder 1-3 parts by weight, accelerator 0.2-0.5 parts by weight, foaming agent 7-15 parts by weight, water-reducing agent 0.1- 0.5 parts by weight and appropriate amount of water；
The sodium hydroxide solution mixing of the Bagasse-cellulose and mass fraction 15-20% 0.8-1.2 hours, sugarcane The mass ratio of slag cellulose and sodium hydroxide solution is 1:1.5-2 filters out Bagasse-cellulose and is washed with deionized into Property, vacuum drying.
The cement be portland cement, aluminate cement, sulphate aluminium cement and alkali slag cement in one kind or Two kinds, three kinds, four kinds.
The foaming agent be hydrogen peroxide, aluminium powder, one or both of potassium permanganate, three kinds.
The Bagasse-cellulose water content is less than 5%.
After the building waste residue grinding, the screening of 300 mesh standard sieves is crossed.
The present invention another technical solution be：The preparation method of above-mentioned light porous self heat-preserving concrete building block, including Following steps：
(1) cement, building waste residue, flyash, quick lime, titanium gypsum powder and accelerator are uniformly mixed；
(2) pretreated Bagasse-cellulose, nano aluminium oxide, nano-calcium carbonate are added to containing mass fraction 0.4- Ultrasonic disperse is uniform in the ethanol solution of 0.6% silane resin acceptor kh-550, is added in the mixture of step (1) to stir after dry and mix It closes 3-4 minutes and is uniformly mixed；
(3) foaming agent, water-reducing agent and suitable water after mixing, are added in the mixture of step (2) in cast blender Slurry is made in interior stirring, and slurry is entered mould, and normal pressure natural curing after the shape of requirement is made, and curing time is not less than 10 days, obtains To energy-saving light-weight porous concrete building blocks.
(3) light porous self heat-preserving concrete building block that step obtains, thermal coefficient are not more than 0.7W/m K, and proportion is little In 1200kg/m3, compression strength is not less than 5MPa, 25 Frozen-thawed cycleds of frost resistance.
The present invention using building waste residue, flyash, Bagasse-cellulose as filler, nano aluminium oxide, receive by quick lime Rice calcium carbonate, titanium gypsum powder are modifying agent, and with cement, accelerator, water is cementitious matter and auxiliary material, through being mixed, vibration moulding, It is conserved and manufactured self-insulation wall material under normal condition, the effect and advantage having：First, the good heat preservation performance of building block, unit weight Low, intensity meets the advantages that partition wall requirement, has good wide application prospect；Second is that being given birth to building waste residue, bagasse fibre Light porous section self heat-preserving concrete building block is produced, production process is simple, low energy consumption, and structure can be effectively reduced applied to skyscraper Project cost improves building thermal property, and energy consumption is reduced, and is a kind of energy-saving and environmental protection, economic green material；Third, It prepares light porous energy-saving concrete one hand tile and can be widely applied to non-bearing wall body, it is possible to reduce the load of high-rise Lotus benefits society to improve the safety guarantee of high-rise.In addition, production whole process of the present invention is not useless Gurry discharge, except stirring in addition to almost without energy consumption, belong to environment friendly technology.
In the following, in conjunction with specific embodiments to the skill of the light porous self heat-preserving concrete building block of the present invention and preparation method thereof Art feature is further described.
Specific implementation mode
Embodiment 1- embodiments 4:A kind of light porous self heat-preserving concrete building block, each raw material proportioning and building block obtained Index is shown in Table 1.
In table 1, the sodium hydroxide solution of Bagasse-cellulose mass fraction 18% impregnates 1 hour, and bagasse is fine The mass ratio of dimension element and sodium hydroxide solution is 1:1.8, it filters out Bagasse-cellulose and is washed with deionized to neutrality, vacuum Drying.Bagasse-cellulose water content is less than 5%.After the building waste residue grinding, the screening of 300 mesh standard sieves is crossed.Described builds Build the waste bricks that waste residue is primarily referred to as the generation of removal process.
Embodiment 5：A kind of preparation method of light porous self heat-preserving concrete building block as described in embodiment 1-4, including Following steps：
(1) cement, building waste residue, flyash, quick lime, titanium gypsum powder and accelerator are uniformly mixed；
(2) pretreated Bagasse-cellulose, nano aluminium oxide, nano-calcium carbonate are added to containing mass fraction 0.4- Ultrasonic disperse is uniform in the ethanol solution of 0.6% silane resin acceptor kh-550, is added after dry in the mixture of step (1) and quickly stirs Mixing is mixed to be uniformly mixed within 3-4 minutes；
(3) foaming agent, water-reducing agent and suitable water after mixing, are added in the mixture of step (2) in cast blender Slurry is made in interior quick stirring, and slurry is entered mould, and normal pressure natural curing after the shape of requirement is made, and curing time is not less than 10 It, obtains energy-saving light-weight porous concrete building blocks.There is obtained block interiors a large amount of micropore, thermal coefficient to be not more than 0.7W/m K, proportion are not more than 1200kg/m3, compression strength is not less than 5MPa, 25 Frozen-thawed cycleds of frost resistance.
Above example is only presently preferred embodiments of the present invention, and structure of the invention is not limited to what above-described embodiment was enumerated Form, all within the spirits and principles of the present invention made by any modification, equivalent replacement etc., should be included in the guarantor of the present invention Within the scope of shield.

Claims (5)

1. a kind of light porous self heat-preserving concrete building block, it is characterised in that：It is to be prepared from the following raw materials in parts by weight：Water Mud 20-32 parts by weight, building waste residue 20-35 parts by weight, Bagasse-cellulose 3-18 parts by weight, flyash 10-25 parts by weight, life Lime 0.02-1 parts by weight, nano aluminium oxide 3-5.5 parts by weight, nano-calcium carbonate 0.2-1.6 parts by weight, titanium gypsum powder 1-3 weights Measure part, accelerator 0.2-0.5 parts by weight, foaming agent 7-15 parts by weight, water-reducing agent 0.1-0.5 parts by weight and appropriate amount of water；
The sodium hydroxide solution mixing of the Bagasse-cellulose and mass fraction 15-20% 0.8-1.2 hours, bagasse are fine The mass ratio of dimension element and sodium hydroxide solution is 1:1.5-2 filters out Bagasse-cellulose and is washed with deionized to neutrality, very Sky drying；The foaming agent is hydrogen peroxide, aluminium powder and potassium permanganate；
The preparation method of the light porous self heat-preserving concrete building block includes the following steps：
(1) cement, building waste residue, flyash, quick lime, titanium gypsum powder and accelerator are uniformly mixed；
(2) pretreated Bagasse-cellulose, nano aluminium oxide, nano-calcium carbonate are added to containing mass fraction 0.4-0.6% Ultrasonic disperse is uniform in the ethanol solution of silane resin acceptor kh-550, is added after dry in the mixture of step (1) and is stirred 3- It is uniformly mixed within 4 minutes；
(3) foaming agent, water-reducing agent and suitable water after mixing, are added in the mixture of step (2) and are stirred in cast blender Mixing enters mould at slurry, by slurry, and normal pressure natural curing after the shape of requirement is made, and curing time is not less than 10 days, is saved It can lightweight cellular concrete building block.
2. light porous self heat-preserving concrete building block according to claim 1, it is characterised in that：The cement is silicic acid One or both of salt cement, aluminate cement, sulphate aluminium cement and alkali slag cement, three kinds, four kinds.
3. light porous self heat-preserving concrete building block according to claim 1, it is characterised in that：The bagasse fibre Plain water content is less than 5%.
4. light porous self heat-preserving concrete building block according to claim 1, it is characterised in that：The building waste residue is ground After mill, the screening of 300 mesh standard sieves is crossed.
5. light porous self heat-preserving concrete building block according to claim 1, it is characterised in that：(3) lightweight that step obtains Porous self heat-preserving concrete building block, thermal coefficient are not more than 0.7W/m K, and proportion is not more than 1200kg/m3, compression strength is small In 5MPa, 25 Frozen-thawed cycleds of frost resistance.
CN201610336111.9A 2016-05-20 2016-05-20 Light porous self heat-preserving concrete building block and preparation method thereof Active CN106007782B (en)

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CN109293312B (en) * 2018-11-19 2021-06-11 广西科技大学 Anti-crack recycled concrete 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
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
CN116874250A (en) * 2023-06-28 2023-10-13 中建商品混凝土有限公司 Anti-cracking antibacterial anti-erosion tunnel lining concrete and preparation method thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN102775184A (en) * 2012-08-16 2012-11-14 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
CN102995475A (en) * 2012-11-16 2013-03-27 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

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN102775184A (en) * 2012-08-16 2012-11-14 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
CN102995475A (en) * 2012-11-16 2013-03-27 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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