CN105948615B - A kind of water-tight concrete prepared using hearthstone powder - Google Patents
A kind of water-tight concrete prepared using hearthstone powder Download PDFInfo
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- CN105948615B CN105948615B CN201610272971.0A CN201610272971A CN105948615B CN 105948615 B CN105948615 B CN 105948615B CN 201610272971 A CN201610272971 A CN 201610272971A CN 105948615 B CN105948615 B CN 105948615B
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
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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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The water-tight concrete that the present invention relates to the use of the preparation of hearthstone powder, belongs to building material technical field.The technical problem to be solved by the present invention is to provide the water-tight concretes prepared using hearthstone powder.The present invention utilizes the water-tight concrete that hearthstone powder is prepared, and is made of the component of following parts by weight：1 part of cement；0.25~0.42 part of hearthstone powder；0.45~0.69 part of water；3.1~3.85 parts of coarse aggregate；2.52~3.22 parts of fine aggregate；0.005~0.012 part of water-reducing agent.The present invention prepares water-tight concrete using specific components and proportioning, and workability is good, intensity is high, and the construction time is convenient for control, concrete construction facility；Formula is simple, has saved great amount of cost, and preparation method is simple and practicable, is not necessarily to mineral admixture, can be applicable in Vietnam and domestic coastal area.
Description
Technical field
The present invention relates to a kind of water-tight concretes prepared using hearthstone powder, belong to building material technical field.
Background technology
It is easily right due to containing a large amount of chlorion and sulfate ion in marine environment for marine structure, sea sand building
Reinforcing bar and concrete generate corrosion effect, reduce concrete basicity, destroy the passivating film of rebar surface, cause steel bar corrosion and swollen
It is swollen, crack and peeling are further resulted in, structure is constantly deteriorated using function and mechanical property, loses structure
Endurance quality, reduce the actual life of engineering.So must take into consideration concrete in terms of mix Design
The anti-permeability performance of structure, it has also become the major issue in Practical Project.
Water-tight concrete mainly by improving the compactness of concrete, improves pore structure and is carried to reduce infiltration lane
High permeability resistant.It makes inside concrete generate disconnected bubble, blocks capillary the common approach is that mix research work of air entrained type additive
Tube passage changes pore structure, to improve the impermeability of concrete, in addition, reducing the ratio of mud, selects appropriate kind and intensity
The cement of grade, ensure construction quality, especially pay attention to vibration compacting, maintenance fully etc., all to improve anti-permeability performance have it is important
Effect.
105110719 A of patent discloses a kind of waterproofing and anti-leakage concrete and preparation method thereof, the waterproofing and anti-leakage concrete
Include the raw material of following parts by weight：160~200 parts of cement, 15~20 parts of nickel slag micro mist, 10~12 parts of superfined flyash, sandstone
40~50 parts, 8~14 parts of siderite, 2~4 parts of diatom ooze, 4~5 parts of sodium sulphate, 2~4 parts of potassium chloride, 12~16 parts of calcium carbonate,
8~15 parts of blast-furnace cinder, 2~4 parts of aluminium hydroxide, 6~10 parts of dicalcium silicate, 5~8 parts of phenolic resin, dipropyl ethyl glycol 2~
5 parts, 1~3 part of potassium stearate.
Patent 104230222A discloses a kind of water-tight concrete, is made from the following raw materials in parts by weight：Magnesium aluminate spinel
Powder 50~60, alumine 30~40, wood shavings 20~30, expanded perlite 100~130, polyoxyethylene ether 4~6, cerium oxide 1
~2, cement 170~190, rubble 500~530, miberal powder 50~70, sand 250~270, acrylic emulsion 15~20, organosilicon breast
Liquid 20~26, appropriate amount of water, auxiliary agent 20~30.
Patent 104386959A discloses a kind of cracking resistance water-tight concrete, and raw material includes following components by weight：
70~100 parts of cement, 400~500 parts of rubble, 50~70 parts of river sand, 40~50 parts of flyash, 30~60 parts of slag, gangue 5
~20 parts, 20~50 parts of basalt fibre, 5~15 parts of polypropylene fibre, 5~20 parts of glass fibre, expanded perlite 6~13
Part, 20~80 parts of nano silicon dioxide, 5~15 parts of nano-calcium carbonate, 1~3 part of lauryl sodium sulfate, zinc stearate 3~6
Part, 2~5 parts of zinc borate, 3~7 parts of sodium citrate, 0.5~1.4 part of tributyl 2-acetylcitrate, diethylenetriamine 0.7~1.3
Part, 3~10 parts of water-reducing agent, 80~100 parts of water.
As it can be seen that the complicated component of existing water-tight concrete, manufacture craft requires height, cost higher.
Invention content
The technical problem to be solved by the present invention is to provide the water-tight concrete prepared using hearthstone powder, concrete component letters
Single, cost is relatively low.
The present invention utilizes the water-tight concrete that hearthstone powder is prepared, and is made of the component of following parts by weight：
Wherein, the cement is preferably Portland cement, more preferably P.O42.5R cement.
The coarse aggregate is preferably rubble, more preferably uses grain size for 5~20mm continuous grading rubbles.
The fine aggregate is preferably river sand, more preferably uses the river sand of fineness modulus 2.7~2.9, more preferably uses fineness
The river sand of modulus 2.84.
Preferably, the water-reducing agent be poly carboxylic acid series water reducer, naphthalene water reducer, in ligninsulfonate water-reducing agent at least
One kind, more preferably poly carboxylic acid series water reducer.
The present invention utilizes the water-tight concrete that hearthstone powder is prepared, and is preferably made of the component of following parts by weight：
Compared with prior art, the present invention has the advantages that：
1) water-tight concrete that the present invention is prepared using hearthstone powder, workability is good, intensity C40, seepage-resistant grade P6,
Setting time can control by adjusting the dosage of additive, and the construction time is convenient for control, concrete construction facility.
2) present invention uses specified raw material and proportioning, while good hearthstone powder is added, and improves the compactness of concrete,
Improve the resistivity that concrete corrodes chlorion and sulfate ion so that concrete impermeability and antiseptic property are significantly
It improves, meets the technology requirement of coastal area concrete.
3) concrete formulation of the present invention is simple, has saved great amount of cost, and preparation method is simple and practicable, is admixed without mineral
Material, can be applicable in Vietnam and domestic coastal area.
Specific implementation mode
The present invention utilizes the water-tight concrete that hearthstone powder is prepared, and is made of the component of following parts by weight：
Wherein, the cement is preferably Portland cement, more preferably P.O42.5R cement.
The coarse aggregate is preferably rubble, more preferably uses grain size for 5~20mm continuous grading rubbles, rubble meets state
Mark the regulation to continuous size fraction in GB/T14685-2011.
The fine aggregate is preferably river sand, more preferably uses the river sand of fineness modulus 2.7~2.9, more preferably uses fineness
The river sand of modulus 2.84.
Water-reducing agent commonly used in the art is suitable for the present invention, it is preferred that the water-reducing agent is poly carboxylic acid series water reducer, naphthalene
At least one of based water reducer, ligninsulfonate water-reducing agent, more preferably poly carboxylic acid series water reducer.
Hearthstone powder of the present invention is a kind of blast furnace mountain flour, be steel mill during refining the pig iron, in order to reduce
Production temperature and add lime stone as fluxing agent make iron oxide restore derived from product, cool down, be ground into through water quenching method
Fine-powdered is blast furnace mountain flour, abbreviation hearthstone powder.Its chemical composition is mainly silica, aluminium oxide, calcium oxide and magnesia four
Kind.
The present invention utilizes the water-tight concrete that hearthstone powder is prepared, and is preferably made of the component of following parts by weight：
The water-tight concrete of the present invention can be used conventional method and be prepared, and following method can also be used：According to the ratio according to
It is secondary that rubble, river sand, cement and hearthstone powder are added in concrete mixer and are stirred evenly, while water-reducing agent is added to coagulation
It is uniformly mixed in native mixing water, then water and water-reducing agent mixing liquid is added in concrete mixer, are sufficiently stirred
After 1min~2.5min, concrete mix is drawn off from blender, is transported to construction site by concrete tank, is carried out follow-up
Construction.
The specific implementation mode of the present invention is further described with reference to embodiment, is not therefore limited the present invention
System is among the embodiment described range.Raw material cement in embodiment (is equivalent to domestic common using Vietnam's PCB40 cement
42.5R cement)；Hearthstone powder is purchased from curing cement limited liability company of Taiwan system；Coarse aggregate uses grain size for 5~20mm continuous gradings
Rubble；Fine aggregate use fineness modulus for 2.84 river sand；Water-reducing agent uses the BMQ-06 board water-reducing agents of Vietnam locality；Water meets
Concrete mixing water standard.
Embodiment 1
It is to rely on to get over South Platform modeling industrial No. 1, No. 2 blast furnace engineering EPC Projects of responsibility Co., Ltd of the quiet steel in river, profit
Water-tight concrete is prepared with hearthstone powder, is applied in more South Platform modeling 1, No. 2 blast furnace engineerings, impervious design strength class requirement
For C40P6.
According to technical solution, after mixtures optimal design, cement 285kg, hearthstone powder 90kg, rubble are weighed respectively with weighing balance
991kg, river sand 813kg, mixing water 161kg, BMQ-06 board water-reducing agent 2.26kg.Successively by rubble, river sand, cement and hearthstone
Powder is added in concrete mixer and stirs evenly, and pays attention to while water-reducing agent must be added in concrete mixing water go to mix first
It closes, then water and additive mixing liquid is added in concrete mixer, after being sufficiently stirred 1~2.5min, concrete is mixed
It closes object to draw off from blender, is transported to construction site by concrete tank, carry out subsequent construction.
After the completion of concrete construction, concrete surface free from flaw is observed, intensity meets the requirements, and strength grade of concrete is
C40, the slump for surveying concrete are 190mm, and 28 days compression strength is 48.4MPa, and 28 days flexural strengths are 5.6MPa.
Anti-permeability strength grade is P6, and 4 test specimens do not seep water in one group of 6 test specimen when concrete impermeability test when detection
When final water pressure be 0.8MPa.
Corrosion resistance is good, detects the total alkali and chloride ion content of concrete, and concrete alkali content is 2.242 after testing
㎏/m3, concrete chloride ion content is 0.026%, and the two content meets codes and standards.
The present invention improves the compactness of concrete, improves concrete because adding good hearthstone powder in the concrete
The resistivity that chlorion and sulfate ion are corroded so that concrete impermeability and antiseptic property greatly improve, and meet
The technology requirement of coastal area concrete.The present invention in Successful utilization to more South Platform modeling 1, No. 2 blast furnace engineerings, applies
It works well.This technology efficiently utilizes Vietnam's locality concrete raw material, has saved great amount of cost, and preparation method is simple
It is easy, it can be in Vietnam and domestic coastal area wide popularization and application.
Claims (4)
1. the water-tight concrete prepared using hearthstone powder, which is characterized in that be made of the component of following parts by weight：
Wherein, the cement is Portland cement；The coarse aggregate uses grain size for 5~20mm continuous grading rubbles；Institute
State the river sand that fine aggregate uses fineness modulus 2.7~2.9；The water-reducing agent is poly carboxylic acid series water reducer, naphthalene water reducer, wooden
At least one of sulfonate water reducer.
2. the water-tight concrete according to claim 1 prepared using hearthstone powder, it is characterised in that：The cement is
P.O42.5R cement.
3. the water-tight concrete according to claim 1 prepared using hearthstone powder, it is characterised in that：The fine aggregate uses
The river sand of fineness modulus 2.84.
4. the water-tight concrete according to claim 1 prepared using hearthstone powder, it is characterised in that：The water-reducing agent is poly-
Carboxylic acid water reducing agent.
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| CN201610272971.0A CN105948615B (en) | 2016-04-28 | 2016-04-28 | A kind of water-tight concrete prepared using hearthstone powder |
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| CN108407088B (en) * | 2018-02-09 | 2020-05-05 | 福建弘高石粉综合利用有限公司 | Concrete mixing device and method for producing concrete containing waste stone powder slurry by using same |
| CN108394027B (en) * | 2018-02-09 | 2020-03-10 | 福建弘高石粉综合利用有限公司 | Gelation production method for producing fine sand concrete containing waste stone powder by using concrete stirring device |
| CN109279846B (en) * | 2018-09-25 | 2021-02-09 | 济南大学 | High-impermeability concrete and preparation method thereof |
| CN110256000A (en) * | 2019-07-02 | 2019-09-20 | 南通长城建筑科技有限公司 | A kind of production technology of Prefabricated composite thermal insulating board |
| CN110981303A (en) * | 2019-12-13 | 2020-04-10 | 湖北环沙再生资源有限公司 | Mineral powder doped concrete and preparation method thereof |
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| TW200513575A (en) * | 2003-10-09 | 2005-04-16 | Marble Plant Rsea Engineering Corp | Construction site cover board |
| TW200513450A (en) * | 2003-10-09 | 2005-04-16 | Jung Min Engineering Corp | Eugenic concrete |
| TW201100349A (en) * | 2009-06-25 | 2011-01-01 | Univ Nat Taiwan Science Tech | Composition of pervious plant-growing concrete and its preparation |
| CN103723968B (en) * | 2013-12-27 | 2016-05-18 | 中核混凝土股份有限公司 | Nuclear power station PX pump house volute pump structure is with concrete and build the method for moulding |
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