CN102311249A - Rice husk ash-containing concrete - Google Patents
Rice husk ash-containing concrete Download PDFInfo
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- CN102311249A CN102311249A CN2010102225938A CN201010222593A CN102311249A CN 102311249 A CN102311249 A CN 102311249A CN 2010102225938 A CN2010102225938 A CN 2010102225938A CN 201010222593 A CN201010222593 A CN 201010222593A CN 102311249 A CN102311249 A CN 102311249A
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- hull ash
- rice hull
- concrete
- cement
- rice
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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 rice husk ash-containing concrete. Rice husk ash is mixed with a cement mixture in a preset ratio, so that the consumption of cement and the cost can be reduced, the effect of effectively recycling wastes can be achieved, and the aims of saving energy, reducing carbon, protecting environment and the earth, and the like are fulfilled.
Description
Technical field
The invention relates to a kind of concrete, be meant a kind of concrete that contains rice hull ash that can be applicable to buildings especially.
Background technology
At present; Because Asian countries (like China) or areas such as (like Vietnam), South East Asia are staple food with the rice food mostly; Therefore the peasant will plant a large amount of rice every year, is example with China, and annual rice amount is approximately produced 37,000,000 tons; Rice in harvesting after by husk rice processing obtaining exquisite rice, an and also kiloton nearly of the rice husk amount that rice is produced after treatment.
Generally, adopt mostly and arbitrarily place as fertilizer sources or burning for the processing mode of rice husk, but because rice husk is not perishable and difficult decomposition; Reducing the probability of its as fertilizer sources, be head it off, then is that rice husk is carried out burn processing on the spot; Yet, on the spot with rice husk with fire burns, dense smoke that its burning the time is produced can influence Air quality and road traffic safety; And the rice hull ash after burning be if can't handle carefully, and buries everywhere arbitrarily or when toppling over, will cause the environment secondary to destroy.
Summary of the invention
The object of the present invention is to provide a kind of concrete that contains rice hull ash, can reach the purpose of utilizing again of the reusing of energy source and the waste paddy ash of rice waste.
For realizing above-mentioned purpose, the concrete that contains rice hull ash provided by the invention comprises:
Cement admixture, this cement admixture comprises water and cement; And
Rice hull ash mix with this cement admixture with predetermined proportion, and this rice hull ash is processed through ashing treatment by rice husk.
The described concrete that contains rice hull ash, wherein the predetermined proportion of this rice hull ash is for mixing 10 to 40 weight % of back overall weight.
The described concrete that contains rice hull ash, wherein the temperature of this ashing treatment is that 300 degree are to 900 degree.
The described concrete that contains rice hull ash, wherein this cement admixture and this rice hull ash blended water-cement ratio are 0.2 to 0.5.
The described concrete that contains rice hull ash, wherein this rice hull ash is through milled processed.
The described concrete that contains rice hull ash, wherein this cement admixture comprises fine granules and Coarse Aggregate.
The described concrete that contains rice hull ash is comprising additive.
The described concrete that contains rice hull ash, wherein this additive is for moulding one of them of agent, glidant, interfacial agent and sticking agent by force.
Effect of the present invention is:
1) it can provide rice hull ash is applied to concrete, to improve waste usability again, and purpose such as reach environmental protection and preserve our planet.
2) can reduce cement consumption and reducing cost.
Description of drawings
Fig. 1 is the concrete making schematic flow sheet that contains rice hull ash of the present invention.
Primary clustering nomenclature in the accompanying drawing:
11 rice husks, 12 ashing treatment, 13 rice hull ash, 14 mix, 15 cement admixtures, 16 additives, 17 concrete.
Embodiment
See also shown in Figure 1ly, be the concrete making schematic flow sheet that contains rice hull ash of the present invention.This concrete that contains rice hull ash mainly be with rice hull ash (Rice Husk Ash, RHA) 13 mix with cement admixture 15 with predetermined proportion, this cement admixture is mainly by water, cement (cement), fine granules (FineAggregate; F.Agge) and Coarse Aggregate (Coarse Aggregate; C.Agge) form, this fine granules can be sand, aggregate, and this Coarse Aggregate can be stone or aggregate; That is; Rice husk 11 is provided earlier, with this rice husk 11 via special device (like High Temperature Furnaces Heating Apparatus) with temperature be 300 to 900 the degree (℃) carry out ashing treatment 12, process rice hull ash 13 with burning.Then; This rice hull ash 13 is mixed 14 with predetermined proportion and cement admixture 15, to obtain to contain the concrete 17 of rice hull ash, wherein; This predetermined proportion is meant that this cement admixture 15 mixes 60 to 90 weight % of back overall weight; Then (be the direct substitution cement amount of rice hull ash, this cement amount is a per unit cube cement consumption to this rice hull ash 13, and for example the per unit cement consumption is 400 kilograms for 10 to the 40 weight % that mix the back overall weight; And the substituted cement amount of rice hull ash is 20%, and promptly blending ratio is 320 kilograms of cement and 80 kilograms of rice hull ash).Moreover; This cement admixture 15 can be 0.2 to 0.5 with these rice hull ash 13 blended water-cement ratios (W/B); And because the water-intake rate of this rice hull ash 13 is approximately 80%; Therefore, when this rice hull ash 13 is mixed with this cement admixture 15, need look its water yield and adjust its water-cement ratio (promptly be called revise water-cement ratio (Revise W/B)).
In addition; After this rice hull ash 13 also can be passed through milled processed; Mix with this cement admixture 15 again; And when this rice hull ash 13 is incorporated in this cement admixture 15, also can additive 16 (be mixed together as moulding by force that agent (Superplasticizer, SP), glidant, interfacial agent or sticking agent) adds simultaneously and with this rice hull ash 13, this cement admixture 15 and forms concrete 17.
Embodiment
Details are as follows for each used composition in embodiment (concrete that contains the paddy ash) and the comparative example (concrete that does not contain the paddy ash):
Rice hull ash: with temperature is that 700 degree carry out ashing treatment burning and process.
Embodiment 1 to 3 and comparative example 1 to 3
According to composition shown in the table 1 and ratio, under room temperature, process concrete mixing.
Table 1
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example 1 | Comparative example 2 | Comparative example 3 | |
| Rice hull ash (weight %) | ?20 | ?20 | ?20 | 0 | 0 | 0 |
| Water-cement ratio | ?0.24 | ?0.3 | ?0.4 | 0.34 | 0.4 | 0.5 |
| Revise water-cement ratio | ?0.34 | ?0.4 | ?0.5 | 0.34 | 0.4 | 0.5 |
| Cement (kg/m 3) | ?533 | ?427 | ?320 | 470 | 400 | 320 |
| Coarse grain work stone (kg/m 3) | ?660 | ?660 | ?660 | 660 | 660 | 660 |
| Fine granules sand (kg/m 3) | ?908 | ?1027 | ?1148 | 1126 | 1183 | 1248 |
| Rice hull ash (kg/m 3) | ?133 | ?107 | ?80 | 0 | 0 | 0 |
| Mould agent (kg/m by force 3) | ?3.6 | ?2.5 | ?1.7 | 0 | 0 | 0 |
| Water (kg/m 3) | ?237 | ?229 | ?220 | 186 | 187 | 188 |
Respectively the above-mentioned concrete that contains rice hull ash that is modulated into is formed cylinder examination body; And after reaching 28 days age phase; Carry out compressive strength test, ultrasound wave velocity test, specific resistance test and Carbon emission test; And unidimensional right cylinder cut into test piece with parallel direction, for carrying out the test of cl ions electric osmose, its result like table 2 to shown in 5.
Table 2
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example 1 | Comparative example 2 | Comparative example 3 | |
| Rice hull ash (weight %) | ?20 | ?20 | ?20 | ?0 | ?0 | ?0 |
| Water-cement ratio | ?0.24 | ?0.3 | ?0.4 | ?0.34 | ?0.4 | ?0.5 |
| Revise water-cement ratio | ?0.34 | ?0.4 | ?0.5 | ?0.34 | ?0.4 | ?0.5 |
| Ultimate compression strength (MPa) | ?72 | ?60 | ?52 | ?63 | ?58 | ?44 |
Test result by table 2 can know that under the condition of identical correction water-cement ratio, the ultimate compression strength that concrete had that contains rice hull ash of the present invention is compared to the next height of the ultimate compression strength that concrete had of not adding rice hull ash.
Table 3
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example 1 | Comparative example 2 | Comparative example 3 | |
| Rice hull ash (weight %) | ?20 | ?20 | ?20 | ?0 | ?0 | ?0 |
| Water-cement ratio | ?0.24 | ?0.3 | ?0.4 | ?0.34 | ?0.4 | ?0.5 |
| Revise water-cement ratio | ?0.34 | ?0.4 | ?0.5 | ?0.34 | ?0.4 | ?0.5 |
| Ultra because of velocity of wave (m/s) | ?4377 | ?4330 | ?4337 | ?4695 | ?4700 | ?4623 |
Learn that by table 3 test result under the condition of identical correction water-cement ratio, of the present invention to contain the ultrasound velocity of wave that the rice hull ash concrete had be the needed standard 4000 of meet the specifications (m/s), also can be good quality concrete.
Table 4
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example 1 | Comparative example 2 | Comparative example 3 | |
| Rice hull ash (weight %) | 20 | ?20 | ?20 | 0 | 0 | 0 |
| Water-cement ratio | 0.24 | ?0.3 | ?0.4 | 0.34 | 0.4 | 0.5 |
| Revise water-cement ratio | 0.34 | ?0.4 | ?0.5 | 0.34 | 0.4 | 0.5 |
| Sheet resistance value (k Ω-cm) | 120.2 | ?95.8 | ?77.6 | 51.7 | 45.2 | 31.8 |
| Cl ions electric osmose value (enclosed pasture) | 1166 | ?383 | ?116 | 4583 | 5096 | 5954 |
| Use effect (%) | +232 | +212 | +244 | 100 | 100 | 100 |
Test result by table 4 can be known; Because rice hull ash can be carried out the pozolana reaction with contained calcium hydroxide and water in the cement admixture, makes concrete microtexture more fine and close, therefore; % is constant in rice hull ash weight; And revise under the situation of water-cement ratio raising, its cl ions electric osmose value (promptly passing through the quantity of electric charge) is high more, and sheet resistance value is then low more; At identical correction water-cement ratio, and under the condition of rice hull ash weight % raising, its cl ions electric osmose value is low more, and sheet resistance value is then high more, and it is used effect and also improves relatively.
Table 5
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example 1 | Comparative example 2 | Comparative example 3 | |
| Rice hull ash (weight %) | 20 | 20 | 20 | ?0 | ?0 | ?0 |
| Water-cement ratio | 0.24 | 0.3 | 0.4 | ?0.34 | ?0.4 | ?0.5 |
| Revise water-cement ratio | 0.34 | 0.4 | 0.5 | ?0.34 | ?0.4 | ?0.5 |
| Cement consumption (kg/m 3) | 534 | 427 | 320 | ?667 | ?553 | ?420 |
| Rice hull ash (kg/m 3) | 133 | 107 | 80 | ?0 | ?0 | ?0 |
| Carbonic acid gas decrement (ton/m 3) | 0.056 | 0.045 | 0.035 | ?0 | ?0 | ?0 |
| Carbonic acid gas decrement (%/per m 3con.) | 12.4 | 12.4 | 12.4 | ?0 | ?0 | ?0 |
Test result by table 5 can know, the height that carbonic acid gas decrement that concrete had that contains rice hull ash of the present invention and titanium dioxide decrement come compared to the carbonic acid gas decrement that concrete had of not adding rice hull ash and titanium dioxide decrement.
In sum, the concrete that contains rice hull ash of the present invention mainly is that rice husk is processed rice hull ash via ashing treatment, this rice hull ash is mixed with cement admixture with predetermined proportion again; And, make it can reduce cement consumption, and then reduce its cost with water-cement ratio replacement wc; Simultaneously; Replace part cement by rice hull ash, the utilization again of the reusing of energy source and the waste paddy ash of rice waste effectively is provided, purpose such as reach carbon reduction, environmental protection and preserve our planet.
Claims (8)
1. concrete that contains rice hull ash comprises:
Cement admixture, this cement admixture comprises water and cement; And
Rice hull ash mix with this cement admixture with predetermined proportion, and this rice hull ash is processed through ashing treatment by rice husk.
2. the concrete that contains rice hull ash as claimed in claim 1, wherein, the predetermined proportion of this rice hull ash is for mixing 10 to 40 weight % of back overall weight.
3. the concrete that contains rice hull ash as claimed in claim 1, wherein, the temperature of this ashing treatment is that 300 degree are to 900 degree.
4. the concrete that contains rice hull ash as claimed in claim 1, wherein, this cement admixture and this rice hull ash blended water-cement ratio are 0.2 to 0.5.
5. the concrete that contains rice hull ash as claimed in claim 1, wherein, this rice hull ash is through milled processed.
6. the concrete that contains rice hull ash as claimed in claim 1, wherein, this cement admixture comprises fine granules and Coarse Aggregate.
7. the concrete that contains rice hull ash as claimed in claim 1 wherein, comprises additive.
8. the concrete that contains rice hull ash as claimed in claim 7, wherein, this additive is for moulding one of them of agent, glidant, interfacial agent and sticking agent by force.
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| CN2010102225938A CN102311249A (en) | 2010-07-02 | 2010-07-02 | Rice husk ash-containing concrete |
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| CN2010102225938A CN102311249A (en) | 2010-07-02 | 2010-07-02 | Rice husk ash-containing concrete |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103539400A (en) * | 2013-05-15 | 2014-01-29 | 浙江建设职业技术学院 | Green high-performance concrete with superfine oil palm fruit shell ash |
| CN107540306A (en) * | 2017-08-21 | 2018-01-05 | 暨南大学 | A kind of admixture containing slag and rice hull ash and the high-strength concrete using its preparation |
| CN107586081A (en) * | 2017-08-18 | 2018-01-16 | 王震洪 | A kind of charcoal concrete |
| WO2019135720A1 (en) * | 2018-01-03 | 2019-07-11 | Natchrungsunkh Phanawisittha | Method of solving the separation problem of concrete and reinforced bamboo in bamboo-reinforced concrete by using waterproof concrete |
| CN110183128A (en) * | 2019-06-05 | 2019-08-30 | 滁州市炬基节能新型建材有限公司 | A kind of construction refuse regenerated high-activity mineral blending material and its preparation |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0733249B2 (en) * | 1992-01-17 | 1995-04-12 | 前田製管株式会社 | Amorphous silica fine powder manufacturing method and concrete product containing amorphous silica fine powder |
| CN1370756A (en) * | 2001-02-20 | 2002-09-25 | 古凡峰 | High-strength cement concrete |
| CN1559897A (en) * | 2004-03-12 | 2005-01-05 | 暨南大学 | Apparatus for incinerating rice husk and producing SiO2 rice husk ash with nano structure therefor |
-
2010
- 2010-07-02 CN CN2010102225938A patent/CN102311249A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0733249B2 (en) * | 1992-01-17 | 1995-04-12 | 前田製管株式会社 | Amorphous silica fine powder manufacturing method and concrete product containing amorphous silica fine powder |
| CN1370756A (en) * | 2001-02-20 | 2002-09-25 | 古凡峰 | High-strength cement concrete |
| CN1559897A (en) * | 2004-03-12 | 2005-01-05 | 暨南大学 | Apparatus for incinerating rice husk and producing SiO2 rice husk ash with nano structure therefor |
Non-Patent Citations (5)
| Title |
|---|
| 《中国建材》 20030630 欧阳东 能与硅灰媲美的矿物掺合料--低温稻壳灰 3 , 第6期 * |
| 《武汉理工大学学报》 20050228 冯庆革等 高活性稻壳灰混凝土的强度特性和孔结构研究 1-8 第27卷, 第2期 * |
| 《武汉理工大学学报》 20050228 冯庆革等 高活性稻壳灰混凝土的强度特性和孔结构研究 第27卷, 第2期 * |
| 冯庆革等: "高活性稻壳灰混凝土的强度特性和孔结构研究", 《武汉理工大学学报》, vol. 27, no. 2, 28 February 2005 (2005-02-28) * |
| 欧阳东: "能与硅灰媲美的矿物掺合料——低温稻壳灰", 《中国建材》, no. 6, 30 June 2003 (2003-06-30) * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103539400A (en) * | 2013-05-15 | 2014-01-29 | 浙江建设职业技术学院 | Green high-performance concrete with superfine oil palm fruit shell ash |
| CN103539400B (en) * | 2013-05-15 | 2015-08-12 | 浙江建设职业技术学院 | A kind of GHPC comprising superfine oil palm fruit shell ash |
| CN107586081A (en) * | 2017-08-18 | 2018-01-16 | 王震洪 | A kind of charcoal concrete |
| CN107540306A (en) * | 2017-08-21 | 2018-01-05 | 暨南大学 | A kind of admixture containing slag and rice hull ash and the high-strength concrete using its preparation |
| WO2019135720A1 (en) * | 2018-01-03 | 2019-07-11 | Natchrungsunkh Phanawisittha | Method of solving the separation problem of concrete and reinforced bamboo in bamboo-reinforced concrete by using waterproof concrete |
| CN110183128A (en) * | 2019-06-05 | 2019-08-30 | 滁州市炬基节能新型建材有限公司 | A kind of construction refuse regenerated high-activity mineral blending material and its preparation |
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Application publication date: 20120111 |