CN105171915A - Preparation method of concrete containing fly ash and silt - Google Patents
Preparation method of concrete containing fly ash and silt Download PDFInfo
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- CN105171915A CN105171915A CN201510328496.XA CN201510328496A CN105171915A CN 105171915 A CN105171915 A CN 105171915A CN 201510328496 A CN201510328496 A CN 201510328496A CN 105171915 A CN105171915 A CN 105171915A
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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
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Abstract
The present invention relates to a preparation method of concrete containing fly ash and silt. The preparation method comprises: taking 30-35% by weight of gravel, 10-20% by weight of cement, 15-25% by weight of yellow sand, 8-10% by weight of a component A, 3-5% by weight of component B, 0.1-1% by weight of an efficient water reducer, 5-10% by weight of a component C, and 8-10% by weight of water, placing the component A, the component B, the component C, the gravel, the yellow sand and the cement in a concrete stirrer, stirring for 1 min, uniformly mixing the water and the efficient water reducer, pouring the mixture of the water and the efficient water reducer into the concrete stirrer, and carrying out mixing stirring for 3-5 min to obtain the concrete. According to the present invention, the cement consumption is reduced, the low-carbon concrete is prepared, and the hydration heat of the concrete can be significantly reduced so as to reduce the hydration temperature increase of the concrete and reduce the shrinkage caused by the cement hydration, such that the cement consumption is reduced, and the consumption of the slag and the fly ash is increased so as to utilize the more solid waste and provide the environmental protection advantage.
Description
Technical field
The present invention relates to building material technical field, be specifically related to a kind of preparation method containing flyash and Sludge concrete.
Background technology
Growing along with national Urbanization Construction, construction project quantity grows with each passing day, and meanwhile gets more and more to concrete demand consumption.After strong concrete is used in building structure, significantly can reduces sectional dimension, alleviate dead load, make concrete structure more lightly attractive in appearance.But produce in preparation at high-strength concrete, often cement consumption is higher, the heat of hydration is comparatively large, and temperature stress and autogenous shrinkage bring hidden danger to the cracking of high-strength concrete, and especially in large volume high-strength concrete, concrete cracking risk is larger.In high-strength concrete especially large volume high-strength concrete, adopt high content mineral admixtures significantly can reduce concrete aquation temperature rise, reduce concrete cracking risk.Result of study both domestic and external shows, flyash can reduce concrete aquation temperature rise effectively.But when cement consumption is less, concrete intensity can reduce, theoretically, should the effect of each component of reasonably optimizing powder, make powder give play to optimized active function and filling effect, make concrete have higher density, slurry has good bonding capacity simultaneously.
Summary of the invention
The object of the invention is the deficiency for solving the problems of the technologies described above, provide a kind of preparation method containing flyash and Sludge concrete, reduce the consumption of cement, the concrete prepared has good workability and workability.
The present invention is the deficiency solved the problems of the technologies described above, and the technical scheme adopted is: a kind of preparation method containing flyash and Sludge concrete, comprises the following steps:
(1) mud 80%, feldspar powder 10% and glass ground-slag 10% is got according to percentage by weight, through double-roller granulator balling-up after mixing, and raw material ball is proceeded in rotary kiln carry out drying, dried raw material ball is fired 10-15min, 1000-1200 DEG C through 400-800 DEG C successively and is fired 6-10min, 800-500 DEG C of insulation 20-30min in rotary kiln, obtain component A, for subsequent use;
The baking temperature of described raw material ball controls as 200-300 DEG C, and drying time controls at 20-30min.
Described mud is that city river dredging silt obtains through removal of impurities, homogenizing, drying, ripening, and the moisture content of mud is not higher than 25%.
Described glass ground-slag is that waste broken glass bits obtains through being crushed to below 90 orders.
The particle diameter of described feldspar powder is below 90 orders.
(2) getting flyash 60%, converter slag 30% and semi-hydrated gypsum 10% according to percentage by weight adds in mixer, after being fully uniformly mixed, obtains B component, for subsequent use.
Described converter slag requires: grinding after iron removal by magnetic separation process, makes it reach specific area>=600m
2/ kg, and the slag micro powder being less than 30 micron grain sizes accounts for more than 90% of gross mass.
(3) get citric acid 2 parts, 10 parts, tartaric acid, silica flour 60 parts and agstone 1000 parts according to parts by weight, dropped in batch mixer by above-mentioned raw materials and mix, and proceed to ball mill, grinding is to specific area 700m
2/ kg, obtains component C, for subsequent use.
(4) rubble 30-35%, cement 10-20%, yellow ground 15-25%, component A8-10%, B component 3-5%, high efficiency water reducing agent 0.1-1%, component C5-10% and water 8-10% is got by weight percentage, component A, B component, component C, rubble, yellow ground and cement are placed in concrete mixer and stir 1min, water and high efficiency water reducing agent are mixed, then the mixture of water and high efficiency water reducing agent is poured in concrete mixer, mix and blend 3-5 minute, obtains high-strength ready-mixed concrete.
beneficial effect
Preparation method of concrete of the present invention, reduce the consumption of cement, what prepare is a kind of low-carbon (LC) concrete, can significantly reduce the concrete heat of hydration, thus reduce concrete aquation temperature rise, reduce hydrated cementitious and the contraction that causes, reduce the consumption of cement on the one hand, increase the consumption of slag and flyash on the other hand, and employ mud as raw material, more solid waste is utilized, environmental protection more.
Detailed description of the invention
embodiment 1
Contain a preparation method for flyash and Sludge concrete, comprise the following steps:
(1) get city river dredging silt through removal of impurities, homogenizing, drying, ripening, and the moisture content of mud is not higher than 25%; Getting waste broken glass bits through being crushed to below 90 orders, obtaining glass ground-slag; Mud 80%, feldspar powder (particle diameter is below 90 orders) 10% and glass ground-slag 10% is got according to percentage by weight, through double-roller granulator balling-up after mixing, and raw material ball is proceeded in rotary kiln carry out drying, baking temperature is 200 DEG C, control drying time at 30min, dried raw material ball in rotary kiln successively through 400 DEG C fire 15min, 1200 DEG C fire 6min, 800 DEG C insulation 20min, obtain component A, for subsequent use;
(2) getting flyash 60%, converter slag 30% and semi-hydrated gypsum 10% according to percentage by weight adds in mixer, after being fully uniformly mixed, obtains B component, for subsequent use.Converter slag requires: grinding after iron removal by magnetic separation process, makes it reach specific area>=600m
2/ kg, and the slag micro powder being less than 30 micron grain sizes accounts for more than 90% of gross mass.
(3) get citric acid 2 parts, 10 parts, tartaric acid, silica flour 60 parts and agstone 1000 parts according to parts by weight, dropped in batch mixer by above-mentioned raw materials and mix, and proceed to ball mill, grinding is to specific area 700m
2/ kg, obtains component C, for subsequent use.
(4) rubble 35%, cement 15%, yellow ground 23%, component A10%, B component 3%, high efficiency water reducing agent 0.5%, component C5.5% and water 8% is got by weight percentage, component A, B component, component C, rubble, yellow ground and cement are placed in concrete mixer and stir 1min, water and high efficiency water reducing agent are mixed, then the mixture of water and high efficiency water reducing agent is poured in concrete mixer, mix and blend 3 minutes, obtains concrete.
embodiment 2
Contain a preparation method for flyash and Sludge concrete, comprise the following steps:
(1) get city river dredging silt through removal of impurities, homogenizing, drying, ripening, and the moisture content of mud is not higher than 25%; Getting waste broken glass bits through being crushed to below 90 orders, obtaining glass ground-slag; Mud 80%, feldspar powder (particle diameter is below 90 orders) 10% and glass ground-slag 10% is got according to percentage by weight, through double-roller granulator balling-up after mixing, and raw material ball is proceeded in rotary kiln carry out drying, baking temperature is 200 DEG C, control drying time at 30min, dried raw material ball in rotary kiln successively through 800 DEG C fire 10min, 1000 DEG C fire 10min, 500 DEG C insulation 30min, obtain component A, for subsequent use;
(2) getting flyash 60%, converter slag 30% and semi-hydrated gypsum 10% according to percentage by weight adds in mixer, after being fully uniformly mixed, obtains B component, for subsequent use.Converter slag requires: grinding after iron removal by magnetic separation process, makes it reach specific area>=600m
2/ kg, and the slag micro powder being less than 30 micron grain sizes accounts for more than 90% of gross mass.
(3) get citric acid 2 parts, 10 parts, tartaric acid, silica flour 60 parts and agstone 1000 parts according to parts by weight, dropped in batch mixer by above-mentioned raw materials and mix, and proceed to ball mill, grinding is to specific area 700m
2/ kg, obtains component C, for subsequent use.
(4) rubble 30%, cement 17%, yellow ground 20%, component A8%, B component 5%, high efficiency water reducing agent 0.1%, component C9.9% and water 10% is got by weight percentage, component A, B component, component C, rubble, yellow ground and cement are placed in concrete mixer and stir 1min, water and high efficiency water reducing agent are mixed, then the mixture of water and high efficiency water reducing agent is poured in concrete mixer, mix and blend 3 minutes, obtains concrete.
embodiment 3
Contain a preparation method for flyash and Sludge concrete, comprise the following steps:
(1) get city river dredging silt through removal of impurities, homogenizing, drying, ripening, and the moisture content of mud is not higher than 25%; Getting waste broken glass bits through being crushed to below 90 orders, obtaining glass ground-slag; Mud 80%, feldspar powder (particle diameter is below 90 orders) 10% and glass ground-slag 10% is got according to percentage by weight, through double-roller granulator balling-up after mixing, and raw material ball is proceeded in rotary kiln carry out drying, baking temperature is 200 DEG C, control drying time at 30min, dried raw material ball in rotary kiln successively through 600 DEG C fire 12min, 1100 DEG C fire 8min, 600 DEG C insulation 25min, obtain component A, for subsequent use;
(2) getting flyash 60%, converter slag 30% and semi-hydrated gypsum 10% according to percentage by weight adds in mixer, after being fully uniformly mixed, obtains B component, for subsequent use.Converter slag requires: grinding after iron removal by magnetic separation process, makes it reach specific area>=600m
2/ kg, and the slag micro powder being less than 30 micron grain sizes accounts for more than 90% of gross mass.
(3) get citric acid 2 parts, 10 parts, tartaric acid, silica flour 60 parts and agstone 1000 parts according to parts by weight, dropped in batch mixer by above-mentioned raw materials and mix, and proceed to ball mill, grinding is to specific area 700m
2/ kg, obtains component C, for subsequent use.
(4) rubble 34%, cement 14%, yellow ground 18%, component A10%, B component 5%, high efficiency water reducing agent 0.2%, component C8.8% and water 10% is got by weight percentage, component A, B component, component C, rubble, yellow ground and cement are placed in concrete mixer and stir 1min, water and high efficiency water reducing agent are mixed, then the mixture of water and high efficiency water reducing agent is poured in concrete mixer, mix and blend 3 minutes, obtains high-strength ready-mixed concrete.
the test of key property
Be poured into vibration moulding in mould respectively after the concrete-agitating that Example 1-3 obtains is even, after accurate maintenance, obtain precast concrete, by as shown in the table for concrete sample standard curing 28 days bending and compressive strength:
More than illustrate just illustrative for the purpose of the present invention; and nonrestrictive, those of ordinary skill in the art understand, when not departing from the spirit and scope that claim limits; many amendments, change or equivalence can be made, but all will fall within protection scope of the present invention.
Claims (3)
1. contain a preparation method for flyash and Sludge concrete, it is characterized in that: comprise the following steps:
(1) mud 80%, feldspar powder 10% and glass ground-slag 10% is got according to percentage by weight, through double-roller granulator balling-up after mixing, and raw material ball is proceeded in rotary kiln carry out drying, dried raw material ball is fired 10-15min, 1000-1200 DEG C through 400-800 DEG C successively and is fired 6-10min, 800-500 DEG C of insulation 20-30min in rotary kiln, obtain component A, for subsequent use;
Described mud is that city river dredging silt obtains through removal of impurities, homogenizing, drying, ripening, and the moisture content of mud is not higher than 25%;
Described glass ground-slag is that waste broken glass bits obtains through being crushed to below 90 orders;
The particle diameter of described feldspar powder is below 90 orders;
(2) getting flyash 60%, converter slag 30% and semi-hydrated gypsum 10% according to percentage by weight adds in mixer, after being fully uniformly mixed, obtains B component, for subsequent use;
(3) get citric acid 2 parts, 10 parts, tartaric acid, silica flour 60 parts and agstone 1000 parts according to parts by weight, dropped in batch mixer by above-mentioned raw materials and mix, and proceed to ball mill, grinding is to specific area 700m
2/ kg, obtains component C, for subsequent use;
(4) rubble 30-35%, cement 10-20%, yellow ground 15-25%, component A8-10%, B component 3-5%, high efficiency water reducing agent 0.1-1%, component C5-10% and water 8-10% is got by weight percentage, component A, B component, component C, rubble, yellow ground and cement are placed in concrete mixer and stir 1min, water and high efficiency water reducing agent are mixed, then the mixture of water and high efficiency water reducing agent is poured in concrete mixer, mix and blend 3-5 minute, obtains high-strength ready-mixed concrete.
2. a kind of preparation method containing flyash and Sludge concrete as claimed in claim 1, is characterized in that: in described step (1), the baking temperature of raw material ball controls as 200-300 DEG C, and drying time controls at 20-30min.
3. a kind of preparation method containing flyash and Sludge concrete as claimed in claim 1, is characterized in that: in described step (2), converter slag requires: grinding after iron removal by magnetic separation process, makes it reach specific area>=600m
2/ kg, and the slag micro powder being less than 30 micron grain sizes accounts for more than 90% of gross mass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510328496.XA CN105171915A (en) | 2015-06-15 | 2015-06-15 | Preparation method of concrete containing fly ash and silt |
Applications Claiming Priority (1)
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|---|---|---|---|
| CN201510328496.XA CN105171915A (en) | 2015-06-15 | 2015-06-15 | Preparation method of concrete containing fly ash and silt |
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| CN105171915A true CN105171915A (en) | 2015-12-23 |
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| CN201510328496.XA Pending CN105171915A (en) | 2015-06-15 | 2015-06-15 | Preparation method of concrete containing fly ash and silt |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113582608A (en) * | 2021-07-05 | 2021-11-02 | 天津大学 | Low-carbon cement and preparation method thereof |
| CN113652919A (en) * | 2021-09-02 | 2021-11-16 | 嘉兴国秀环保建材有限公司 | Paving method of novel material asphalt pavement |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0582008A1 (en) * | 1992-08-04 | 1994-02-09 | Municipal Services Corporation | Fixation and utilization of ash residue from the incineration of municipal solid waste |
| CN101935179A (en) * | 2010-08-19 | 2011-01-05 | 上海大学 | Composite mineral additive for high-strength and high-performance concrete and method for preparing concrete |
| CN102515605A (en) * | 2011-12-15 | 2012-06-27 | 同济大学 | Light-weight ceramsites of riverway sludge and production method for same |
| CN102617061A (en) * | 2012-03-21 | 2012-08-01 | 中建商品混凝土有限公司 | Ultra retarder for concrete and preparation method for ultra retarder |
| CN104129958A (en) * | 2014-07-24 | 2014-11-05 | 中交公路长大桥建设国家工程研究中心有限公司 | High-strength crack-resistant concrete material |
-
2015
- 2015-06-15 CN CN201510328496.XA patent/CN105171915A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0582008A1 (en) * | 1992-08-04 | 1994-02-09 | Municipal Services Corporation | Fixation and utilization of ash residue from the incineration of municipal solid waste |
| CN101935179A (en) * | 2010-08-19 | 2011-01-05 | 上海大学 | Composite mineral additive for high-strength and high-performance concrete and method for preparing concrete |
| CN102515605A (en) * | 2011-12-15 | 2012-06-27 | 同济大学 | Light-weight ceramsites of riverway sludge and production method for same |
| CN102617061A (en) * | 2012-03-21 | 2012-08-01 | 中建商品混凝土有限公司 | Ultra retarder for concrete and preparation method for ultra retarder |
| CN104129958A (en) * | 2014-07-24 | 2014-11-05 | 中交公路长大桥建设国家工程研究中心有限公司 | High-strength crack-resistant concrete material |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113582608A (en) * | 2021-07-05 | 2021-11-02 | 天津大学 | Low-carbon cement and preparation method thereof |
| CN113652919A (en) * | 2021-09-02 | 2021-11-16 | 嘉兴国秀环保建材有限公司 | Paving method of novel material asphalt pavement |
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Application publication date: 20151223 |