CN105236873A - Plastic concrete suitable for coastal artificial fill-stone layer base support structure - Google Patents
Plastic concrete suitable for coastal artificial fill-stone layer base support structure Download PDFInfo
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- CN105236873A CN105236873A CN201510392534.8A CN201510392534A CN105236873A CN 105236873 A CN105236873 A CN 105236873A CN 201510392534 A CN201510392534 A CN 201510392534A CN 105236873 A CN105236873 A CN 105236873A
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- concrete
- stone layer
- require
- foundation supporting
- layer foundation
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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 relates to the field of concrete building materials, and especially relates to bentonite (or clay) plastic concrete suitable for a coastal artificial fill-stone layer base support structure. The plastic concrete has a 28d compressive strength of 5.0-10.0Mpa, an initial elasticity modulus of 2000-10000Mpa, and a permeability coefficient of 10<-5>-10<-8>cm/s. Each cubic meter of the concrete material comprises the components of, by mass, 140-160kg/m<3> of cement, 100-120kg/m<3> of fly ash, 90-110kg/m<3> of bentonite (or clay), 650-750kg/m<3> of stone slag, 650-750kg/m<3> of gravel, 3.0-5.0kg/m<3> of a polycarboxylic acid high-performance additive, and 310-330kg/m<3> of water. The plastic concrete has good workability. When the plastic concrete is used in the coastal artificial fill-stone layer base support structure, the strength and seismic performance can endure underground seawater scour and the effect of unstable geological structures.
Description
Technical field
The present invention relates to concrete building material field, be particularly applicable to wilkinite (or clay) plastic concrete of strand artificial Backfilled Stone Layer foundation supporting structure.
Background technology
Plastic concrete first time use is the material for diaphragm wall of Cofferdam at nineteen fifty-seven gondola A Ya (Aja) Hydropower Station, because cement consumption is few, there is the performance that good barrier performance, lower Young's modulus and larger ultimate deformation etc. are good, be widely applied in the world.The eighties in 20th century, China imports and exports material for diaphragm wall of Cofferdam in Ming Tombs storage station and uses plastic concrete for the first time.The technology of current plastic concrete obtains larger development, is mainly all applied in the project facilities such as the dam of freshet, power station.
Plastic concrete is mainly used in antiseepage core wall, comprises plastic concrete mechanical property requirements: 28d ultimate compression strength should be 1.0-5.0Mpa; Young's modulus is preferably the 1-5 of cut-pff wall surrounding medium Young's modulus doubly, and should not be greater than 2000Mpa; Bullet is by force than being 200-500.Plastic concrete permeability coefficient should be 10
-6cm/s-10
-8cm/s.
Foundation supporting structure is the safety for main structure construction under protecting field and foundation ditch surrounding enviroment, the measure of provisional the shelves adopted foundation ditch, reinforcing, protection and Groundwater Control.
The tectonic structure of the artificial Backfilled Stone Layer in strand comprises artificial Backfilled Stone Layer, Soft Soil Layer, decayed rack and residual soil, and foundation supporting structural requirement can bear underground sea water and wash away and unstable tectonic structure.
Summary of the invention
The present invention seeks to provide for the engineering project of strand artificial Backfilled Stone Layer foundation supporting structure to form interlocking pile with reinforced concrete pile, 28d ultimate compression strength 5.0-10.0Mpa, initial elastic modulus 2000-10000Mpa, permeability coefficient is 10
-5cm/s-10
-8the plastic concrete of cm/s.
Technical scheme of the present invention is: strand artificial Backfilled Stone Layer foundation supporting structural plasticity concrete measures each component in units of every cubic meter of concrete quality of materials, comprises cement 140-160kg/m
3, flyash 100-120kg/m
3, wilkinite (or clay) 90-110kg/m
3, rock ballast 650-750kg/m
3, rubble 650-750kg/m
3, poly-carboxylic high-performance admixture 3-5kg/m
3, tap water 310-330kg/m
3.
Described cement is for meeting common silicate cement P.O42.5 or P.O42.5R of standard GB/T 175 " general purpose portland cement ".
Described flyash is for meeting the one in standard GB/T/T1596 " flyash in cement and concrete " in I, II flyash.
Described wilkinite is for meeting the one in standard GB/T/T20973 " wilkinite " in untreated Peng Run soil, drilling well wilkinite, OCMA wilkinite.
Described clay for wet mix (mud) time sticky content be greater than 50%, dry sticky content when mixing is greater than 35%, the clay that sand content is less than 5%.
Described rock ballast is that content of stone powder is less than 15%, and clod content is less than 2.0%, and the maximum crush index of single-stage is less than 25%, and sulfide and sulphate content are less than 0.5%, and mica content is less than 2.0%, and lightweight matter in aggregate is less than 1.0%, the fine aggregate that organism is qualified.
Described rubble is for meeting 5-10mm continuous size fraction requirement in GB/T14684 " building sand ".
Described poly-carboxylic high-performance admixture is for meeting the one in the retardation setting type of acceptable end product technical requirements in JG/T223 " polycarboxylate high performance water-reducing agent " or non-retardation setting type.
Described tap water meets the related request in JGJ63 " the reinforcement of concrete water quality standard ".
Beneficial effect of the present invention: the workability of plastic concrete is good, in the artificial Backfilled Stone Layer foundation supporting structure of strand, intensity and anti-permeability performance possess and bear underground sea water and wash away and unstable architectonic effect.
Specific implementation method
Embodiment. the plastic concrete of strand artificial Backfilled Stone Layer foundation supporting structure, wherein P.O42.5 cement 150kg/m
3, II level flyash 110kg/m
3, wilkinite (or clay) 100kg/m
3, rock ballast 708kg/m
3, 5-10mm rubble 708kg/m
3, poly-carboxylic high-performance admixture 4.32kg/m
3, tap water 320kg/m
3.Cement, flyash, wilkinite, rock ballast, 5-10mm rubble are blended in two shaft pugmill mixer after dry mixing, add poly-carboxylic high-performance admixture and water mixed solution and stir obtained product.
Test result: slump 235mm, divergence 435mm, 7d ultimate compression strength is 3.6MPa, 28d ultimate compression strength is 8.2Mpa, and Young's modulus is 9800Mpa, and permeability coefficient is 2.53 × 10
-8cm/s.
Claims (9)
1. the artificial Backfilled Stone Layer foundation supporting in strand structural plasticity concrete, 28d ultimate compression strength 5.0-10.0Mpa, initial elastic modulus 2000-10000Mpa, permeability coefficient is 10
-5cm/s-10
-8cm/s, every cubic meter of concrete quality of materials is that unit measures each component, comprises cement 140-160kg/m
3, flyash 100-120kg/m
3, wilkinite (or clay) 90-110kg/m
3, rock ballast 650-750kg/m
3, rubble 650-750kg/m
3, poly-carboxylic high-performance admixture 3.0-5.0kg/m
3, tap water 310-330kg/m
3.
2. require that described strand artificial Backfilled Stone Layer foundation supporting structural plasticity concrete is characterized in that according to right 1, described cement is for meeting common silicate cement P.O42.5 or P.O42.5R in standard GB/T 175 " general purpose portland cement ".
3. require that described strand artificial Backfilled Stone Layer foundation supporting structural plasticity concrete is characterized in that according to right 1, described flyash is for meeting the one in standard GB/T/T1596 " flyash in cement and concrete " in I, II flyash.
4. require that described strand artificial Backfilled Stone Layer foundation supporting structural plasticity concrete is characterized in that according to right 1, described wilkinite is for meeting the one in standard GB/T/T20973 " wilkinite " in untreated Peng Run soil, drilling well wilkinite, OCMA wilkinite.
5. require that described strand artificial Backfilled Stone Layer foundation supporting structural plasticity concrete is characterized in that according to right 1, described clay for wet mix (mud) time sticky content be greater than 50%, dry sticky content when mixing is greater than 35%, the clay that sand content is less than 5%.
6. require that described strand artificial Backfilled Stone Layer foundation supporting structural plasticity concrete is characterized in that according to right 1, described rock ballast is that content of stone powder is less than 15%, clod content is less than 2.0%, the maximum crush index of single-stage is less than 25%, sulfide and sulphate content are less than 0.5%, mica content is less than 2.0%, and lightweight matter in aggregate is less than 1.0%, the fine aggregate that organism is qualified.
7. require that described strand artificial Backfilled Stone Layer foundation supporting structural plasticity concrete is characterized in that according to right 1, described rubble is for meeting 5-10mm continuous size fraction requirement in GB/T14684 " building sand ".
8. require that described strand artificial Backfilled Stone Layer foundation supporting structural plasticity concrete is characterized in that according to right 1, described poly-carboxylic high-performance admixture is for meeting the one in the retardation setting type of acceptable end product technical requirements in JG/T223 " polycarboxylate high performance water-reducing agent " or non-retardation setting type.
9. require that described strand artificial Backfilled Stone Layer foundation supporting structural plasticity concrete is characterized in that according to right 1, described tap water meets the related request in JGJ63 " the reinforcement of concrete water quality standard ".
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510392534.8A CN105236873A (en) | 2015-06-30 | 2015-06-30 | Plastic concrete suitable for coastal artificial fill-stone layer base support structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510392534.8A CN105236873A (en) | 2015-06-30 | 2015-06-30 | Plastic concrete suitable for coastal artificial fill-stone layer base support structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105236873A true CN105236873A (en) | 2016-01-13 |
Family
ID=55034755
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|---|---|---|---|
| CN201510392534.8A Pending CN105236873A (en) | 2015-06-30 | 2015-06-30 | Plastic concrete suitable for coastal artificial fill-stone layer base support structure |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105887890A (en) * | 2016-04-14 | 2016-08-24 | 广州市鲁班建筑集团股份有限公司 | Plastic pile, construction method of plastic pile and foundation pit supporting watertight seal structure |
| CN107640941A (en) * | 2017-10-16 | 2018-01-30 | 长江水利委员会长江科学院 | The third newborn toughness reinforcing plastic concrete and preparation method with good deformation adaptability |
| CN110963760A (en) * | 2019-12-16 | 2020-04-07 | 中建西部建设湖南有限公司 | Plastic concrete for seaport cofferdam engineering diaphragm wall and preparation method thereof |
| CN112062526A (en) * | 2020-09-09 | 2020-12-11 | 中建四局建设发展有限公司 | Low-strength low-permeability concrete and preparation method thereof |
| CN112289388A (en) * | 2020-11-04 | 2021-01-29 | 石家庄铁道大学 | Machine-made sand concrete mix proportion design method for fluctuation of mica content in stone powder |
Citations (4)
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|---|---|---|---|---|
| CN1429952A (en) * | 2003-02-12 | 2003-07-16 | 中冶地勘察基础工程有限公司 | Application of water injection method for making plastic concrete leakage proof wall in garbage sanitary embedding field |
| CN1834054A (en) * | 2005-12-15 | 2006-09-20 | 中国长江三峡工程开发总公司 | High strength, low elasticity and anti-creepage, creeping proof wall material |
| CN102617073A (en) * | 2012-01-20 | 2012-08-01 | 北京新奥混凝土集团有限公司 | Plastic concrete for cutoff wall |
| CN104386977A (en) * | 2014-10-17 | 2015-03-04 | 中国科学院武汉岩土力学研究所 | Low-shrinkage plastic concrete for high-speed rail bed damaged area backfilling, and preparation method thereof |
-
2015
- 2015-06-30 CN CN201510392534.8A patent/CN105236873A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1429952A (en) * | 2003-02-12 | 2003-07-16 | 中冶地勘察基础工程有限公司 | Application of water injection method for making plastic concrete leakage proof wall in garbage sanitary embedding field |
| CN1834054A (en) * | 2005-12-15 | 2006-09-20 | 中国长江三峡工程开发总公司 | High strength, low elasticity and anti-creepage, creeping proof wall material |
| CN102617073A (en) * | 2012-01-20 | 2012-08-01 | 北京新奥混凝土集团有限公司 | Plastic concrete for cutoff wall |
| CN104386977A (en) * | 2014-10-17 | 2015-03-04 | 中国科学院武汉岩土力学研究所 | Low-shrinkage plastic concrete for high-speed rail bed damaged area backfilling, and preparation method thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105887890A (en) * | 2016-04-14 | 2016-08-24 | 广州市鲁班建筑集团股份有限公司 | Plastic pile, construction method of plastic pile and foundation pit supporting watertight seal structure |
| CN107640941A (en) * | 2017-10-16 | 2018-01-30 | 长江水利委员会长江科学院 | The third newborn toughness reinforcing plastic concrete and preparation method with good deformation adaptability |
| CN110963760A (en) * | 2019-12-16 | 2020-04-07 | 中建西部建设湖南有限公司 | Plastic concrete for seaport cofferdam engineering diaphragm wall and preparation method thereof |
| CN112062526A (en) * | 2020-09-09 | 2020-12-11 | 中建四局建设发展有限公司 | Low-strength low-permeability concrete and preparation method thereof |
| CN112062526B (en) * | 2020-09-09 | 2022-07-12 | 中建四局建设发展有限公司 | Low-strength low-permeability concrete and preparation method thereof |
| CN112289388A (en) * | 2020-11-04 | 2021-01-29 | 石家庄铁道大学 | Machine-made sand concrete mix proportion design method for fluctuation of mica content in stone powder |
| CN112289388B (en) * | 2020-11-04 | 2022-03-04 | 石家庄铁道大学 | Machine-made sand concrete mix proportion design method for fluctuation of mica content in stone powder |
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