CN102701667B - Novel thermal-insulation high-strength mortar of rice hull - Google Patents
Novel thermal-insulation high-strength mortar of rice hull Download PDFInfo
- Publication number
- CN102701667B CN102701667B CN201210084791.1A CN201210084791A CN102701667B CN 102701667 B CN102701667 B CN 102701667B CN 201210084791 A CN201210084791 A CN 201210084791A CN 102701667 B CN102701667 B CN 102701667B
- Authority
- CN
- China
- Prior art keywords
- thermal insulation
- mortar
- insulation mortar
- construction
- thermal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- 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 novel thermal-insulation high-strength mortar of the rice hull, which relates to the mortar in the technical field of the construction engineering and is mainly used for the thermal insulation of interior and exterior walls. In the prior art, the construction waste residue serve as filler to produce light construction materials, but only a small quantity of waste residues can be consumed, and the requirement of reusing resources can not be satisfied. The mortar provided by the invention comprises the following components by weight: 12-20% of common portland cement, 2-3% of coal ash, 1-2% of silica fume, 30-35% of water, 2-3% of rice hull, 30-32% of smashed construction waste, 3-7% of coarse whiting powder, 0.3-1% of re-dispersible latex powder and 0.07-0.12% of cellulose ether. A large quality of construction wastes are used as mortar aggregate, the mortar has higher strength and thermal insulation property, can reach the ideal strength standard of the interior and exterior wall thermal-insulation system and can be widely applied to the construction walls, the use amount of cement is reduced.
Description
Technical field
The mortar that the present invention relates to a kind of construction engineering technical field, is mainly used in inside and outside wall thermal insulation, belongs to building material technical field.
Background technology
Energy and environment are two hang-ups of 21 century mankind facing, and fast-developing China-related issue is especially outstanding.At present, China is in industrialization and urbanization Rapid development stage, growth, the quickening of urbanization process, the upgrading of residents consumption pattern of industry, make the demand aggravation of people to the energy, economic resources, energy scarcity problem highlights day by day, has had a strong impact on and restricted the development of China's economic society.Existing floor area of building 40,000,000,000 m of China
2, and with the speed increase of annual 15%-20%, and building build and use procedure in directly the energy of consumption account for the more than 27.6% of whole society's total energy consumption, and be continuation ascendant trend.For this reason, the Chinese government using building energy conservation as alleviating China's energy scarcity contradiction, alleviate environmental pollution, promote one of sustainable economic development the most directly, the most cheap measure ，Ye Shi China important component part of deepening the economic restructuring a nearly period.China has promulgated multinomial residential architecture and public building energy standard so far from 1998, formulate the plan of energy-conservation 30%, 50% to 65% three-step-march of energy for building level in relative 1980.Along with the formulation and implementation of energy saving policy, energy saving building development rapidly, has also obtained significant progress as the building external envelope structure of building the main position of running power consumption, forms external wall outer insulation, exterior wall internal insulation, sandwich heat preservation and self heat insulation wall system.Comparatively speaking, the direct brushing thermal insulation mortar of surface of wall is formed to external insulation system in exterior wall, construction is simple, especially old urban area building heat preservation performance transformation, and interior outer wall coating thermal insulation mortar advantage in economic benefit is more obvious.Therefore, in buildings, exterior wall adopts brushing thermal insulation mortar to have more value with the method for heat insulation structure for building energy-efficient performance.
The lagging material of China makes significant progress in the application of building energy saving field in recent years, and most areas is mainly used for interior external wall outer insulation with expansion polyphenyl plate, extruded polystyrene board and polyurathamc before.Yet, because organic insulation material reaches fire-resistant requirement, be not eliminated gradually.Therefore, research and develop novelly, adopt lightweight fine aggregate and the formulated inorganic heat insulation mortar of sand-cement slurry, be subject to attention widely.On the one hand, the main raw material of this thermal insulation mortar utilizes rice production processing Main By product rice husk and gas concrete waste residue to make light-weight aggregate.Generally speaking, the rice husk in rural area is mainly used in keeping fowls, burns and discards, and is not fully utilized.From the material character of rice husk itself, its quality is light, and surface has many holes, can form cap holes in mortar inside, thereby improve thermal resistance with cement mixing.And rice husk is originally as vegetable fibre, to of great advantage with raising mortar mechanical property.And China vigorously advocates building energy conservation reduction of discharging at present, utilize the thermal insulation mortar of waste preparation good heat preservation effect, improve the wall insulation performance of Rural areas when creating economic interests, social benefit, also purified environment, there is splendid environmental benefit.On the other hand, the waste material clinker that at present China's gas concrete produces cannot effectively be processed, and generally takes the method for burying, and this is all disadvantageous to environment protection and the utilization of resources.Although construction waste can be produced to light building material as filler in the prior art, this only can consume a small amount of waste material slag, can not meet the requirement that resource recycles again far away.This mortar be take construction waste as one of main raw material, produces the mortar that has good thermal insulation property, has not only realized the requirement that building energy conservation reduces discharging, and has also realized effective recycling of resource.
Summary of the invention
The technical problem the present invention relates to is to provide a kind ofly take rice husk as one of raw material, and can reach the ideal tensile strength standard of heat insulation system of internal and external walls, is widely used in the thermal insulation mortar of construction wall.
For solving the problems of the technologies described above, the massfraction of each component of thermal insulation mortar of the present invention is as follows: ordinary Portland cement: 12%-20%, flyash: 2%-3%, silicon ash: the construction waste of 1%-2%, water: 30%-35%, rice husk: 2%-3%, pulverizing: 30%-32%, dicalcium powder: 3%-7%, redispersible latex powder: 0.3%-1%, ether of cellulose: 0.07%-0.12%.The volume fraction of its main aggregate component is as follows: rice husk: 35%-50%, construction waste: 50%-65%.
Preferred cement is ordinary Portland cement.
Preferred rice husk is pulverized and is fiddled with produced rice husk for the daily production of the mankind.
Preferred flyash is that the main solid waste main oxides of discharging after thermal power plant coal burning consists of: SiO
2, Al
2o
3, FeO, Fe
2o
3, CaO, TiO
2deng.
The SiO that preferred silicon ash produces while being industrial smelting ferrosilicon and industrial silicon
2with Si gas, the rapid a kind of ultra-fine siliceous powder body material that is oxidized also condensation and forms in air.
The particle slag that preferred construction waste is 0.05-4.75mm for the granularity that forms after crusher in crushing.
Preferred dicalcium powder is 325 order dry-mix water-ground limestones used in building trade.
Preferred redispersible latex powder is that ash oontent is 10 ± 2% redispersible latex powder.
Preferred ether of cellulose is propyl methocel ether, is a kind of water-soluble high-molecular material.
The beneficial effect that adopts technique scheme to produce is:
1. unit weight is light, good heat insulating, and thermal conductivity is 0.13-0.18W/mk.
2. mechanical property is good, and resistance to compression, folding strength are higher.
3. volume stability is good, does not ftracture, hollowing not.
4. adhesive property is good, corrosion-resistant, withstand voltage mill.
6. this thermal insulation mortar makes full use of in daily production as the rice husk of waste, not only turns waste into wealth, and has realized utilization of waste material.And given full play to the advantage of rice husk itself, accomplished to make the best use of everything.
7. this thermal insulation mortar makes full use of reluctant construction waste in daily production, makes full use of waste resource, has also protected environment simultaneously.
8. production cost is low, and harmless, free from environmental pollution, has the feature of energy-conserving and environment-protective.
Embodiment
Below in conjunction with specific embodiment, the present invention will be further described in detail.
Implementation step
Embodiment 1
The cement mortar model of employing standard (70.7mm * 70.7mm * 70.7mm) is carried out moulding.Novel rice husk heat insulation high-strength mortar mixture adopts UJZ-15 type mortar mixer to stir, the construction waste, dicalcium powder (dicalcium powder=cement * 0.3), redispersible latex powder (redispersible latex powder=cement * 0.004), ether of cellulose (ether of cellulose=cement * 0.0005), water (consumption=construction waste of water moisture+cement water consumption) that add in proportion cement, flyash (flyash=cement * 0.2), silicon ash (silicon ash=cement * 0.08), rice husk, pulverizing, stir 4～6min to uniform mixing.By mixing and stirring complete mortar, add in mortar die trial, when filling up mortar master die 1/2, mechanical vibration 1min, then mortar master die is filled to mortar, then mechanical vibration 1～2min, continue to fill mortar, scrape plane surface, install after mortar mould, then mechanical vibration 1min.The demoulding after maintenance 48h at 20 ℃ after test block forming, puts into standard curing room maintenance and tests intensity after 28 days.
Preparation raw material is: cement is ordinary Portland cement; Rice husk is the rice husk waste material that rice processing process produces; Flyash is that the main solid waste main oxides of discharging after thermal power plant coal burning consists of: SiO
2, Al
2o
3, FeO, Fe
2o
3, CaO, TiO
2; The SiO that silicon ash produces while being industrial smelting ferrosilicon and industrial silicon
2with Si gas, aerial oxidation rapidly condensation and a kind of ultra-fine siliceous powder body material that forms; The particle slag that construction waste is 0.05-4.75mm for the granularity through fragmentation formation; Dicalcium powder is 325 order dry-mix water-ground limestones used in building trade; Redispersible latex powder is that ash oontent is 10 ± 2% redispersible latex powder; Ether of cellulose is propyl methocel ether, is a kind of water-soluble high-molecular material.
Be below the proportioning of embodiment 1-4, comparing embodiment 1 each sample:
Each composition weight proportioning of process is joined in the examination of table 1 mortar
We are made into size by above-mentioned proportioning and are respectively: the mortar thin plate of 400mm * 400mm * 30m carries out unit weight, the mensuration of thermal conductivity, the sample of 70.7mm * 70.7mm * 70.7mm and 160mm * 160mm * 40mm carries out resistance to compression, bending test and carries out the test of cohesive strength according to China construction industry standard JGJ70-2009, and result is as chart 2
Table 2 is respectively organized the performance of test sample
During by weight feeding, weight permissible error is as shown in table 3
Table 3 mixing mortar metering permissible variation
By comparing embodiment 1, can be found out, remove after the rice husk in mortar, the whole unit weight of mortar increases, strength increase, but thermal conductivity increase is larger.By above embodiment 1-4, can be found out, add rice husk and contribute to reduce thermal conductivity in mortar, along with the minimizing of construction waste incorporation, pressure-proof and snap-resistent intensity and the cohesive strength of thermal insulation mortar decrease, and the increase of rice husk contributes to reduce thermal conductivity.But in embodiment 4, because construction waste in mortar is very few, rice husk is too much, though but have less thermal conductivity intensity not meet the standard of high-strength mortar.
This special envoy uses the aggregate as mortar compared with the construction waste of multimass, and it has higher intensity and heat-insulating property, has reduced the consumption of cement.
By the data presentation of above mensuration, proportioning is rice husk: water: cement: flyash: silicon ash: the embodiment 1 of construction waste: dicalcium powder: latex powder: ether of cellulose=0.09:2:1:0.2:0.05:2:0.27:0.035:0.01 is as plastering mortar, the requirement that meets intensity meets again the thermal conductivity requirement that heat preservation energy-saving reaches, and is optimum mix.
Simultaneously, from example above, we can regulate ultimate compression strength and thermal conductivity by changing the ratio of construction waste and rice husk and cement.Raw material ratio has a great impact the heat-insulating property of mortar.
Claims (9)
1. a thermal insulation mortar, the composition weight proportioning that it is characterized in that described mortar is as follows, rice husk: water: cement: flyash: silicon ash: construction waste: dicalcium powder: latex powder: ether of cellulose=0.09:2:1:0.2:0.05:2:0.27:0.035:0.01, wherein construction waste and rice husk form aggregate, and the thermal conductivity of described mortar is 0.172W/m.k.
2. thermal insulation mortar according to claim 1, is characterized in that: described cement is ordinary Portland cement.
3. thermal insulation mortar according to claim 1, is characterized in that: described rice husk is the rice husk waste material that the rice course of processing produces.
4. thermal insulation mortar according to claim 1, is characterized in that: described flyash is the main solid waste of discharging after thermal power plant coal burning, and main oxides consists of: SiO
2, Al
2o
3, FeO, Fe
2o
3, CaO, TiO
2.
5. thermal insulation mortar according to claim 1, is characterized in that: the SiO that described silicon ash produces while being industrial smelting ferrosilicon and industrial silicon
2with Si gas, with the rapid a kind of ultra-fine siliceous powder body material that is oxidized also condensation and forms of airborne oxygen.
6. thermal insulation mortar according to claim 1, is characterized in that: described construction waste is the particle slag that granularity that construction waste forms after fragmentation is 0.05-4.75mm.
7. thermal insulation mortar according to claim 1, is characterized in that: described dicalcium powder is 325 order dry-mix water-ground limestones used in building trade.
8. thermal insulation mortar according to claim 1, is characterized in that: described redispersible latex powder is that ash oontent is 10 ± 2% redispersible latex powder.
9. thermal insulation mortar according to claim 1, is characterized in that: described ether of cellulose is propyl methocel ether, is a kind of water-soluble high-molecular material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210084791.1A CN102701667B (en) | 2012-03-28 | 2012-03-28 | Novel thermal-insulation high-strength mortar of rice hull |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210084791.1A CN102701667B (en) | 2012-03-28 | 2012-03-28 | Novel thermal-insulation high-strength mortar of rice hull |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102701667A CN102701667A (en) | 2012-10-03 |
| CN102701667B true CN102701667B (en) | 2014-01-22 |
Family
ID=46894797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210084791.1A Expired - Fee Related CN102701667B (en) | 2012-03-28 | 2012-03-28 | Novel thermal-insulation high-strength mortar of rice hull |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102701667B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103771804B (en) * | 2014-01-13 | 2015-10-21 | 同济大学 | A kind of hydrophobic motar and using method being mixed with tile polished waste |
| CN104529273A (en) * | 2014-12-09 | 2015-04-22 | 李松涛 | Novel waterproof thermal-insulation mortar containing household garbage burning ash |
| CN104594524A (en) * | 2014-12-13 | 2015-05-06 | 齐齐哈尔大学 | Heat preserving wall with straw building blocks and polyethylene films composited |
| CN104773986A (en) * | 2014-12-26 | 2015-07-15 | 贵州皓科新型材料有限公司 | Inorganic active heat insulation mortar and construction technology thereof |
| CN104649641B (en) * | 2015-02-09 | 2016-06-29 | 同济大学 | A kind of fiber reinforced inorganic heat insulation mortar of crushing straw and using method |
| CN108358661A (en) * | 2017-07-01 | 2018-08-03 | 太仓安托建筑材料有限公司 | A kind of light-weight environment-friendly construction material |
| CN108751901A (en) * | 2018-08-01 | 2018-11-06 | 遵义汉丰装饰材料有限责任公司 | A kind of plastering gupsum mortar and preparation method thereof |
| CN111747773B (en) * | 2020-06-30 | 2022-03-22 | 惠州市英建实业有限公司 | Aerated brick produced by using almond shells and preparation method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1390798A (en) * | 2002-07-16 | 2003-01-15 | 李华民 | Process for preparing regenerated sand for building |
| CN101723639A (en) * | 2008-10-31 | 2010-06-09 | 何林道 | Novel heat-insulation dry powder mortar |
| CN101857406B (en) * | 2010-06-30 | 2012-02-15 | 西北农林科技大学 | Anti-seepage heat insulating rice husk concrete and preparation method thereof |
-
2012
- 2012-03-28 CN CN201210084791.1A patent/CN102701667B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN102701667A (en) | 2012-10-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102701667B (en) | Novel thermal-insulation high-strength mortar of rice hull | |
| CN103664073B (en) | A kind of autoclave aerated concrete building block utilizing Yellow River Sand to prepare and preparation method thereof | |
| CN101608484B (en) | Phosphorous slag autoclave aerated concrete building block and preparation method thereof | |
| CN102875066B (en) | Chromic slag aerated brick and preparation method thereof | |
| CN103159450B (en) | Production method of foamed concrete block manufactured from steel slag | |
| CN103121824B (en) | Self-heat preservation building block produced by using industrial byproduct gypsum and preparation method thereof | |
| CN102875184B (en) | Oil shale residue aerated brick and preparation method thereof | |
| CN103539415B (en) | Preparation method of kaolin geopolymer-based regenerated EPS (Expandable Polystyrene) insulating material of exterior wall of building | |
| CN103641393A (en) | Steam-press air-entrainment concrete self-heat conserving building block by using sand of Yellow River and preparation method | |
| CN103086655A (en) | Method for preparing concrete brick | |
| CN110981349A (en) | Light high-strength muck-based thermal insulation material and preparation method thereof | |
| CN103396044A (en) | Energy-saving building block compounded with construction waste, straws and foamed concrete | |
| CN102875188B (en) | Magnesite slag aerating brick and preparation method thereof | |
| CN105254324A (en) | Air-entrapping steam curing component prepared from construction waste and preparation method thereof | |
| CN102875186B (en) | Fluorite slag aerated brick and preparation method thereof | |
| CN110510974A (en) | A kind of efficient aeroge solid waste concrete and preparation method thereof | |
| CN105110702A (en) | Autoclaved brick manufactured by utilizing construction waste and preparation method of autoclaved brick | |
| CN104478364B (en) | A kind of foam concrete heat insulation building block and production method thereof | |
| CN102875068B (en) | Building rubbish aerated concrete block and preparation method thereof | |
| CN102875074B (en) | Waste cement road slag aerated concrete block and preparation method thereof | |
| CN108529925B (en) | Anti-cracking early strength agent for shield segment concrete and use method thereof | |
| CN113716931A (en) | Non-autoclaved silicomanganese slag aerated concrete thermal insulation building block and preparation method thereof | |
| CN102701666B (en) | Novel composite thermal-insulation mortar | |
| CN102167552B (en) | Light incombustible wall insulation material and application thereof | |
| CN111925165A (en) | Building waste concrete block and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: WENZHOU UNIVERSITY Free format text: FORMER OWNER: WANG JUN Effective date: 20130121 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20130121 Address after: 325035 Zhejiang province Chashan Wenzhou Higher Education Park Applicant after: Wenzhou University Address before: 325035 Zhejiang province Wenzhou Chashan Higher Education Park Architectural Engineering College of Wenzhou University Applicant before: Wang Jun |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140122 Termination date: 20170328 |