CN103979889A - Method for making river shore-based root stones by utilizing Yellow River silt and construction dregs - Google Patents
Method for making river shore-based root stones by utilizing Yellow River silt and construction dregs Download PDFInfo
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- CN103979889A CN103979889A CN201410193061.4A CN201410193061A CN103979889A CN 103979889 A CN103979889 A CN 103979889A CN 201410193061 A CN201410193061 A CN 201410193061A CN 103979889 A CN103979889 A CN 103979889A
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- yellow river
- river silt
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- architecture sediment
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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 invention relates to a method for making river shore-based root stones by utilizing Yellow River silt and construction dregs. The method comprises the following steps: carrying out graded crushing on the construction dregs, collecting broken stones to obtain construction dreg regeneration aggregates, and sieving the Yellow River silt to remove impurities; uniformly mixing the construction dreg regeneration aggregates with cement, the Yellow River silt, sand, the broken stones and a water reducer, adding the above obtained mixed materials to water, and uniformly stirring to obtain a mixture; adding the mixture into a die, carrying out vibration molding, allowing the die with the mixture to stand at 20-25DEG C for 22-26h, and demolding to obtain a molded material; and maintaining the molded material to obtain finished products. The construction dregs and the Yellow River silt are adopted as primary raw materials to substitute sandstones, so the kind of the river shore-based root stones is enriched, the consumption of the natural stones is reduced, and natural ore resources are saved; and the method provides a new approach for the comprehensive utilization of the construction dregs and the Yellow River silt, reduces the occupied land and saves the land resource.
Description
Technical field
The present invention relates to the preparation method of a kind of river course bank base root stone, relate to more specifically a kind of method of utilizing the Yellow River silt and architecture sediment to prepare river course bank base root stone, belong to field of environment engineering technology.
Background technology
Lower reaches of river dangerous section and river control works traditional structure are that piece stone is wrapped up in counter dam body soil tire; under current scour effect as dam body foundation in order to protect the mulch block of dam body can partly leave dam body; cause root stone to wander away; so all need a large amount of root stone to reinforce river training works before annual flood; root stone demand is large, and along with the minimizing of ore resource, the exploitation of lithotome is restricted; based on current present situation, suitable natural stone of material substitution is badly in need of finding in society.
The quantity of China's building waste residue has accounted for the 30%-40% of municipal wastes weight, according to statistics, construction is often only by China, and an architecture sediment that produces and discharge just has 4,000 ten thousand tons, and along with the continuous quickening of new rural area and urban construction, the architecture sediment thereupon producing also will grow with each passing day.Current most architecture sediment is just transported to countryside or rural area without any processing, adopt the mode of air storage or landfill to process, not only consume the pork barrels such as a large amount of land acquisition expenses, refuse collection expense, clear simultaneously with stacking process in the dust and the waste water that produce caused again serious environmental pollution.
The Loess Plateau of flowing through, the Yellow River, is carrying a large amount of silt secretly, causes alluvial in various degree behind the plains region of flowing through, and forms the Yellow River silt, wherein the Yellow River downstream channel for many years average siltation volume up to 3.87 hundred million tons.Along yellow all kinds of yellow irrigation work, the water storage projects etc. of drawing, there are a large amount of silt discharges, the Yellow River silt enters channel, raceway groove and field, not only give irrigated area agricultural irrigation and draw yellow trouble-free service of irrigating and bring difficulty, also increased desilting expense, therefore the approach of exploring the new silt that brings the Yellow River under control is necessary, also meets the theory of recycling economy.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of method of utilizing the Yellow River silt and architecture sediment to prepare river course bank base root stone, preparation-obtained product can substitute lithotome, enriched the kind of existing stone, save nature ore resource, reduced the pollution of architecture sediment to environment, the comprehensive regulation for architecture sediment and the Yellow River silt simultaneously provides a new way.
Term explanation
Architecture sediment: refer to construction unit, unit in charge of construction is newly-built, renovating and enlarging and remove the discarded dregs producing in all kinds of buildingss, structures, pipe network etc. and resident's decorations house process.
The Yellow River silt: refer to that the Yellow River flows through behind loess plateau, carried a large amount of silt secretly, cause alluvial in various degree, formed non-metallic mineral resource behind the plains region of flowing through.
Technical scheme of the present invention is as follows:
Utilize the Yellow River silt and architecture sediment to prepare a method for river course bank base root stone, step is as follows:
(1) by the rubble that after architecture sediment graded crushing, collection cut size is 5-31.5mm, obtain regenerated coarse aggregate; Collection cut size is the rubble of 0.15-5mm, obtains recycled fine aggregate; The Yellow River silt is crossed to 80-120 mesh sieve and remove large granular impurity and foreign material, standby;
(2) by weight, sand, the rubble of 300-975 part particle diameter 5-31.5mm and the water reducer of 3-8 part that to get 400-1022 part regenerated coarse aggregate, 200-582 part recycled fine aggregate, 260-450 part cement, 60-450 part the Yellow River silt, 300-680 part fineness modulus be 2.3-3.0, after mixing, join in the water of 120-190 part, stir, obtain compound;
(3) compound step (2) being made is encased in vibratory compaction in mould, vibration in dress mold process, compacting, and under 20-25 ℃ of temperature condition, the demoulding after placement 22-26h, obtains molding mass;
(4) by the whole plastic covering cloth of the molding mass making in step (3), heat and moisture preserving maintenance 3d, maintenance to the 7d removes the outdoor watering maintenance of plastic cloth, whole stacking maintenance after watering maintenance to the 14d, integral body gets product after stacking maintenance to the 28d.
According to the present invention, preferably, in step (1), the step of architecture sediment graded crushing and collection is: architecture sediment is passed through to one-level crusher in crushing, crosses the screening of 40mm square hole sieve one-level, pass through two-stage crushing crusher machine, cross the screening of 10mm square hole sieve secondary, cross three grades of screenings of 5mm square hole sieve, collection cut size 5-31.5mm rubble obtains regenerated coarse aggregate, and collection cut size 0.15-5mm rubble obtains recycled fine aggregate.
According to the present invention, preferably, step (2) Raw weight part consists of sand, the rubble of 450-750 part particle diameter 5-31.5mm, the water reducer of 3-7 part and the 130-185 part water that 460-856 part regenerated coarse aggregate, 285-580 part recycled fine aggregate, 290-450 part cement, 80-400 part the Yellow River silt, 300-620 part fineness modulus are 2.3-3.0;
Described water reducer is polycarboxylate water-reducer.
According to the present invention, the mould described in step (3) be shaped as any suitable shape, any suitable size.The preferred rectangular parallelepiped of shape of mould, square, right cylinder, positive tetrahedron, multiaspect cone, taper shape etc., the present invention prepares different shapes and big or small root stone according to the mould of different size and shapes, has overcome little, the in irregular shape deficiency of lithotome volume mass.
According to the present invention, in step (3), according to different mold shape, prepare in root stone process, can add therein reinforcing bar material or filamentary material root stone body is connected to bunchiness or reticulates structure, can improve the impact resistance of river course bank base root stone.
According to the present invention, in step (4) watering maintenance processes, be held in moulding mixture surface wettability.
Beneficial effect of the present invention:
1, to adopt architecture sediment and the Yellow River silt be that main raw material replaces natural sandstone in the present invention, enriched existing river course bank base root stone kind, reduced the consumption of lithotome, saved natural ore resource.
2, the comprehensive utilization that the present invention is architecture sediment and the Yellow River silt provides a new approach, reduces and takes up an area simultaneously, economizes the land resource.
3, the present invention can change river course bank base root stone shape specification and quality volume flexibly according to actual requirement, solved little, the in irregular shape drawback of lithotome quality volume, can also add reinforcing bar, filamentary material and various admixture simultaneously and optimize river course bank base root stone mulch performance.
4, the inventive method is simple, low production cost.
Embodiment
Below by specific embodiment, the present invention will be further described, but be not limited to this.
Raw materials used conventional raw material, the commercial product of being in embodiment.Wherein: regenerated coarse aggregate is the rubble that after architecture sediment graded crushing, collection cut size is 5-31.5mm; Recycled fine aggregate is the rubble that after architecture sediment graded crushing, collection cut size is 0.15-5mm; Cement is 42.5 grades of ordinary Portland cements; Water is tap water; Water reducer used is polycarboxylate water-reducer; The fineness modulus of sand used is 2.3-3.0; Ballast grain sizes used is 5-31.5mm, crush index 8.2%, silt content 0.6%, apparent density 2597Kg/m
3, water-intake rate 2.5%, soundness 5.2%, the above regulation that all meets SDJ207-82 < < concrete construction standard > >.
Embodiment 1-3
Utilize the Yellow River silt and architecture sediment to prepare a method for river course bank base root stone, parts by weight of raw materials forms as shown in table 1:
Table 1 (unit: Kg)
Step is as follows:
(1) architecture sediment passed through to one-level crusher in crushing, cross the screening of 40mm square hole sieve one-level, through two-stage crushing crusher machine, 10mm square hole sieve secondary screening excessively, three grades of screenings of 5mm square hole sieve excessively, collection cut size 5-31.5mm rubble, obtain regenerated coarse aggregate, collection cut size 0.15-5mm rubble obtains recycled fine aggregate; The Yellow River silt is crossed to 100 mesh sieves and remove large granular impurity and foreign material, standby;
(2) press table 1 proportioning by architecture sediment aggregate, cement, the Yellow River silt, sand, rubble and water reducer, add in stirred vessel, after the rotating speed of employing 45r/min is uniformly mixed, be added to the water, adopt the rotating speed of 75r/min to stir, obtain compound;
(3) compound step (2) being made is encased in vibratory compaction in the mould of rectangular shape, and vibration in dress mold process, compacting, under 20-25 ℃ of temperature condition, are placed the demoulding after 22-26h, obtain molding mass;
(4) by the whole plastic covering cloth of the molding mass making in step (3), heat and moisture preserving maintenance 3d, maintenance to the 7d removes the outdoor watering maintenance of plastic cloth, whole stacking maintenance after watering maintenance to the 14d, integral body gets product after stacking maintenance to the 28d.
Experimental example
According to the water conservancy industry standard SL352-2006 < < of People's Republic of China (PRC) concrete for hydraulic structure testing regulation > >, the performance perameter of river course bank base root stone prepared by mensuration embodiment 1-3, result is as shown in table 2.
Table 2
| Proportioning numbering | Strength grade | Ultimate compression strength (MP) | Impervious |
| Embodiment 1 | C20 | 24.6 | W4 |
| Embodiment 2 | C25 | 30.1 | W6 |
| Embodiment 3 | C30 | 34.4 | W8 |
As shown in Table 2, river course bank base root stone ultimate compression strength prepared by embodiment 1-3 is high, and anti-permeability performance is good, can meet the performance requriements of bank base root stone.
Claims (6)
1. utilize the Yellow River silt and architecture sediment to prepare a method for river course bank base root stone, step is as follows:
(1) by the rubble that after architecture sediment graded crushing, collection cut size is 5-31.5mm, obtain regenerated coarse aggregate; Collection cut size is the rubble of 0.15-5mm, obtains recycled fine aggregate; The Yellow River silt is crossed to 80-120 mesh sieve and remove large granular impurity and foreign material, standby;
(2) by weight, sand, the rubble of 300-975 part particle diameter 5-31.5mm and the water reducer of 3-8 part that to get 400-1022 part regenerated coarse aggregate, 200-582 part recycled fine aggregate, 260-450 part cement, 60-450 part the Yellow River silt, 300-680 part fineness modulus be 2.3-3.0, after mixing, join in the water of 120-190 part, stir, obtain compound;
(3) compound step (2) being made is encased in vibratory compaction in mould, vibration in dress mold process, compacting, and under 20-25 ℃ of temperature condition, the demoulding after placement 22-26h, obtains molding mass;
(4) by the whole plastic covering cloth of the molding mass making in step (3), heat and moisture preserving maintenance 3d, maintenance to the 7d removes the outdoor watering maintenance of plastic cloth, whole stacking maintenance after watering maintenance to the 14d, integral body gets product after stacking maintenance to the 28d.
2. the method for utilizing the Yellow River silt and architecture sediment to prepare river course bank base root stone according to claim 1, it is characterized in that, in step (1), the step of architecture sediment graded crushing and collection is: architecture sediment is passed through to one-level crusher in crushing, crosses the screening of 40mm square hole sieve one-level, pass through two-stage crushing crusher machine, cross the screening of 10mm square hole sieve secondary, cross three grades of screenings of 5mm square hole sieve, collection cut size 5-31.5mm rubble obtains regenerated coarse aggregate, and collection cut size 0.15-5mm rubble obtains recycled fine aggregate.
3. the method for utilizing the Yellow River silt and architecture sediment to prepare river course bank base root stone according to claim 1, it is characterized in that, step (2) Raw weight part consists of sand, the rubble of 450-750 part particle diameter 5-31.5mm, the water reducer of 3-7 part and the 130-185 part water that 460-856 part regenerated coarse aggregate, 285-580 part recycled fine aggregate, 290-450 part cement, 80-400 part the Yellow River silt, 300-620 part fineness modulus are 2.3-3.0.
4. the method for utilizing the Yellow River silt and architecture sediment to prepare river course bank base root stone according to claim 1, is characterized in that, the water reducer described in step (2) is polycarboxylate water-reducer.
5. the method for utilizing the Yellow River silt and architecture sediment to prepare river course bank base root stone according to claim 1, it is characterized in that, the mould described in step (3) be shaped as rectangular parallelepiped, square, right cylinder, positive tetrahedron, multiaspect cone or taper shape.
6. the method for utilizing the Yellow River silt and architecture sediment to prepare river course bank base root stone according to claim 1, is characterized in that, step (3) is prepared in root stone process, adds reinforcing bar or fiber root stone is connected to bunchiness or reticulated structure.
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| CN201410193061.4A CN103979889B (en) | 2014-05-08 | 2014-05-08 | A kind of method utilizing the Yellow River silt and architecture sediment to prepare river course bank base root stone |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105174847A (en) * | 2015-09-18 | 2015-12-23 | 河南省基本建设科学实验研究院有限公司 | Commercial concrete prepared from yellow river silt |
| CN108609956A (en) * | 2018-05-22 | 2018-10-02 | 深圳市绿志新型建材研究院有限公司 | Body refuse soil regeneration baking-free brick and preparation method thereof more than a kind of shock resistance |
| CN109721310A (en) * | 2019-02-25 | 2019-05-07 | 华南理工大学 | Engineering dregs substitute cement bonded sand soil paste prepared by natural sand and preparation method and application |
| CN114057446A (en) * | 2021-11-10 | 2022-02-18 | 德州黄河建业工程有限责任公司 | Economic and environment-friendly backup prevention stone and manufacturing method thereof |
| CN115159885A (en) * | 2022-06-02 | 2022-10-11 | 华南理工大学 | Mixed construction sand and clay sand, and preparation method and application thereof |
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| CN103641393A (en) * | 2013-11-14 | 2014-03-19 | 河南兴安新型建筑材料有限公司 | Steam-press air-entrainment concrete self-heat conserving building block by using sand of Yellow River and preparation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105174847A (en) * | 2015-09-18 | 2015-12-23 | 河南省基本建设科学实验研究院有限公司 | Commercial concrete prepared from yellow river silt |
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| CN114057446A (en) * | 2021-11-10 | 2022-02-18 | 德州黄河建业工程有限责任公司 | Economic and environment-friendly backup prevention stone and manufacturing method thereof |
| CN115159885A (en) * | 2022-06-02 | 2022-10-11 | 华南理工大学 | Mixed construction sand and clay sand, and preparation method and application thereof |
| CN115159885B (en) * | 2022-06-02 | 2023-09-26 | 华南理工大学 | Mixed construction sand and clay sand as well as preparation method and application thereof |
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