CN110981303A - Mineral powder doped concrete and preparation method thereof - Google Patents
Mineral powder doped concrete and preparation method thereof Download PDFInfo
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- CN110981303A CN110981303A CN201911282904.7A CN201911282904A CN110981303A CN 110981303 A CN110981303 A CN 110981303A CN 201911282904 A CN201911282904 A CN 201911282904A CN 110981303 A CN110981303 A CN 110981303A
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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
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/2015—Sulfate resistance
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/29—Frost-thaw resistance
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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 invention discloses mineral powder doped concrete which comprises the following components in parts by weight: 500 parts of cement, 200 parts of fly ash, 300 parts of sand, 200 parts of sand, 800 parts of stone, 400 parts of water, 200 parts of mineral powder, 10-20 parts of air entraining agent, 10-15 parts of water reducing agent and 10-20 parts of silane. The mineral powder-doped concrete provided by the invention adopts cement and fly ash as gel materials, sand and stones as aggregates, air entraining agent, water reducing agent and silane as additives, and mineral powder with the fineness of 300-500 meshes is added, so that the prepared concrete has high strength and strong durability.
Description
Technical Field
The invention belongs to the technical field of building material preparation, and particularly relates to mineral powder-doped concrete and a preparation method thereof.
Background
Concrete is one of the most important civil engineering materials of the present generation. The artificial stone is prepared from a cementing material, aggregate, water, an additive and an admixture which are added if necessary, and is formed by uniformly stirring, closely compacting, curing and hardening. The concrete has the characteristics of rich raw materials, low price and simple production process, so that the consumption of the concrete is increased more and more. Meanwhile, the concrete also has the characteristics of high compressive strength, good durability, wide strength grade range and the like. These characteristics make it very widely used, not only in various civil engineering, that is shipbuilding, machinery industry, ocean development, geothermal engineering, etc., but also concrete is an important material.
With the continuous expansion of the application of concrete materials, the concrete materials are widely applied to large-scale infrastructures such as high-speed railways and urban rail transit, higher requirements are put on the concrete, the concrete is required to have good durability, at present, broken stone grains and river sand are generally adopted as aggregates in the concrete, cement is adopted as a gel material, and although the strength and the impermeability are higher, the durability is not strong. Patent CN106220082A discloses a concrete, which is composed of cement, sand, stones, water, a water reducing agent, phenolic fibers and diatomite powder; wherein, relative to 1000kg of stones, the dosage of the cement is 700 kg-500 kg, the dosage of the sand is 450 kg-350 kg, the dosage of the water is 280 kg-160 kg, the dosage of the water reducing agent is 3-6kg, the dosage of the phenolic fiber is 8-22kg, and the dosage of the diatomite powder is 40-70 kg. Although the concrete has high strength, the concrete has poor durability.
Disclosure of Invention
The invention aims to provide ore powder-doped concrete and a preparation method thereof.
The mineral powder-doped concrete comprises the following components in parts by weight: 500 parts of cement, 200 parts of fly ash, 300 parts of sand, 200 parts of sand, 800 parts of stone, 400 parts of water, 200 parts of mineral powder, 10-20 parts of air entraining agent, 10-15 parts of water reducing agent and 10-20 parts of silane.
The particle size of the stones is 10-20 mm.
The grain diameter of the sand is 0.3-0.6 mm.
The air entraining agent is one or more of dodecyl benzyl polyoxyethylene ether, bisphenol A and pentaerythritol.
The water reducing agent is one or more of β -naphthalene sulfonate formaldehyde condensate, lignosulfonate and alkyl glycoside.
The mineral powder is one or more of siebol, scale paraffin and nicotinite.
The preparation method of the ore powder-doped concrete comprises the following steps:
(1) crushing the mineral powder into powder with the fineness of 300 and 500 meshes;
(2) according to the weight portion, the concrete is prepared by putting 500 portions of cement 300-containing materials, 300 portions of fly ash 200-containing materials, 300 portions of sand 200-containing materials, 800 portions of stone 600-containing materials, 400 portions of water 200-containing materials, 300 portions of mineral powder 200-containing materials, 10-20 portions of air entraining agents, 10-15 portions of water reducing agents and 10-20 portions of silane into a stirrer and stirring for 50-80min at the speed of 50-70 r/min.
The invention has the beneficial effects that: the mineral powder-doped concrete provided by the invention adopts cement and fly ash as gel materials, sand and stones as aggregates, air entraining agent, water reducing agent and silane as additives, and mineral powder with the fineness of 300-500 meshes is added, so that the prepared concrete has high strength and strong durability.
Detailed Description
The present invention is further illustrated by the following specific examples.
Example 1
The mineral powder-doped concrete comprises, by weight, 400 parts of cement, 250 parts of fly ash, 250 parts of sand, 700 parts of stones, 300 parts of water, 250 parts of sienna stone powder, 15 parts of dodecyl benzyl polyoxyethylene ether, 12 parts of β -naphthalene sulfonate formaldehyde condensate and 15 parts of silane.
The preparation method of the ore powder-doped concrete comprises the following steps:
(1) crushing the mineral powder into powder with the fineness of 400;
(2) according to the weight parts, 400 parts of cement, 250 parts of fly ash, 250 parts of sand, 700 parts of stones, 300 parts of water, 250 parts of sienna stone powder, 15 parts of dodecyl benzyl polyoxyethylene ether, 12 parts of β -naphthalene sulfonate formaldehyde condensate and 15 parts of silane are put into a stirrer and stirred for 70min at the speed of 60r/min to prepare the modified silicon carbide composite material.
Example 2
The mineral powder-doped concrete comprises the following components in parts by weight: 330 parts of cement, 220 parts of fly ash, 210 parts of sand, 650 parts of stones, 250 parts of water, 220 parts of scale paraffin powder, 12 parts of bisphenol A, 12 parts of sodium lignosulfonate and 12 parts of silane.
The preparation method of the ore powder-doped concrete comprises the following steps:
(1) crushing the mineral powder into powder with the fineness of 300;
(2) according to the weight parts, 330 parts of cement, 220 parts of fly ash, 210 parts of sand, 650 parts of stones, 250 parts of water, 220 parts of scale paraffin powder, 12 parts of bisphenol A, 12 parts of sodium lignosulfonate and 12 parts of silane are put into a stirrer to be stirred for 80min at the speed of 50r/min to prepare the high-strength high-toughness high-strength.
Example 3
The mineral powder-doped concrete comprises the following components in parts by weight: 500 parts of cement, 300 parts of fly ash, 280 parts of sand, 750 parts of stones, 380 parts of water, 280 parts of nicotiana powder, 18 parts of pentaerythritol, 15 parts of alkyl glycoside and 19 parts of silane.
The preparation method of the ore powder-doped concrete comprises the following steps:
(1) crushing the mineral powder into powder with the fineness of 500;
(2) according to the weight parts, the brick is prepared by putting 500 parts of cement, 300 parts of fly ash, 280 parts of sand, 750 parts of stones, 380 parts of water, 280 parts of nicotiana powder, 18 parts of pentaerythritol, 15 parts of alkyl glycoside and 19 parts of silane into a stirrer and stirring for 50min at the speed of 70 r/min.
Example 4
The mineral powder-doped concrete comprises, by weight, 400 parts of cement, 250 parts of fly ash, 250 parts of sand, 700 parts of stones, 300 parts of water, 250 parts of diopside powder, 15 parts of dodecyl benzyl polyoxyethylene ether, 12 parts of β -naphthalene sulfonate formaldehyde condensate and 15 parts of silane.
The preparation method of the ore powder-doped concrete comprises the following steps:
(1) crushing the mineral powder into powder with the fineness of 400;
(2) according to the weight parts, 400 parts of cement, 250 parts of fly ash, 250 parts of sand, 700 parts of stones, 300 parts of water, 250 parts of diopside powder, 15 parts of dodecyl benzyl polyoxyethylene ether, 12 parts of β -naphthalene sulfonate formaldehyde condensate and 15 parts of silane are put into a stirrer and stirred for 70min at the speed of 60r/min to prepare the catalyst.
Example 5
The mineral powder-doped concrete comprises, by weight, 400 parts of cement, 250 parts of fly ash, 250 parts of sand, 700 parts of stones, 300 parts of water, 15 parts of dodecyl benzyl polyoxyethylene ether, 12 parts of β -naphthalene sulfonate formaldehyde condensate and 15 parts of silane.
The preparation method of the ore powder-doped concrete comprises the following steps:
(1) crushing the mineral powder into powder with the fineness of 400;
(2) according to the weight parts, 400 parts of cement, 250 parts of fly ash, 250 parts of sand, 700 parts of stones, 300 parts of water, 15 parts of dodecyl benzyl polyoxyethylene ether, 12 parts of β -naphthalenesulfonate formaldehyde condensate and 15 parts of silane are put into a stirrer and stirred for 70min at the speed of 60r/min to prepare the modified silicon carbide material.
Experimental example 1:
the frost resistance test was performed according to the GBJ82-85 concrete durability test method, the test instruments were TYA-2000 model electrohydraulic compression tester and hail negative temperature freezer, and the compressive strength (MPa) after 50 freeze-thaw cycles was tested, with the results shown in table 1:
TABLE 1
Note: represents P <0.05 compared to the example 1 group.
Experimental example 2:
the sulfate corrosion resistance test is carried out according to ASTM1012 and GB2420 'quick test method for sulfate corrosion resistance of cement', a test instrument is a TYA-2000 electrohydraulic pressure tester, and test results are shown in Table 2:
TABLE 2
Note: represents P <0.05 compared to the example 1 group.
Claims (7)
1. The ore powder-doped concrete is characterized by comprising the following components in parts by weight: 500 parts of cement, 200 parts of fly ash, 300 parts of sand, 200 parts of sand, 800 parts of stone, 400 parts of water, 200 parts of mineral powder, 10-20 parts of air entraining agent, 10-15 parts of water reducing agent and 10-20 parts of silane.
2. The mineral-doped fine concrete according to claim 1, wherein the particle size of the stones is 10 to 20 mm.
3. The mineral-doped concrete according to claim 1, wherein the sand has a particle size of 0.3 to 0.6 mm.
4. The mineral powder-doped concrete of claim 1, wherein the air entraining agent is one or more of dodecyl benzyl polyoxyethylene ether, bisphenol A and pentaerythritol.
5. The mineral powder-doped concrete according to claim 1, wherein the water reducing agent is one or more of β -naphthalene sulfonate formaldehyde condensate, lignosulfonate and alkyl glycoside.
6. The mineral powder-doped concrete according to claim 1, wherein the mineral powder is one or more of siebol, tridymite and nicotinite.
7. The method for preparing the ore-blended concrete according to claim 1, which comprises the following steps:
(1) crushing the mineral powder into powder with the fineness of 300 and 500 meshes;
(2) according to the weight portion, the concrete is prepared by putting 500 portions of cement 300-containing materials, 300 portions of fly ash 200-containing materials, 300 portions of sand 200-containing materials, 800 portions of stone 600-containing materials, 400 portions of water 200-containing materials, 300 portions of mineral powder 200-containing materials, 10-20 portions of air entraining agents, 10-15 portions of water reducing agents and 10-20 portions of silane into a stirrer and stirring for 50-80min at the speed of 50-70 r/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201911282904.7A CN110981303A (en) | 2019-12-13 | 2019-12-13 | Mineral powder doped concrete and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911282904.7A CN110981303A (en) | 2019-12-13 | 2019-12-13 | Mineral powder doped concrete and preparation method thereof |
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| CN110981303A true CN110981303A (en) | 2020-04-10 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100909212B1 (en) * | 2008-04-15 | 2009-07-23 | 한국건설기술연구원 | Concrete composition for repair of pavement |
| CN105948615A (en) * | 2016-04-28 | 2016-09-21 | 十九冶成都建设有限公司 | Impermeable concrete prepared with hearthstone powder |
| CN106565164A (en) * | 2015-10-09 | 2017-04-19 | 中建西部建设股份有限公司 | Modified high-sulfate-resistant corrosion-resistant concrete |
| CN109206093A (en) * | 2018-08-31 | 2019-01-15 | 上海翟氏混凝土有限公司 | A kind of high-flowing concrete mixture and preparation method thereof |
| CN109928665A (en) * | 2019-05-07 | 2019-06-25 | 杭州中荷智慧城市科技有限公司 | A kind of concrete admixture |
-
2019
- 2019-12-13 CN CN201911282904.7A patent/CN110981303A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100909212B1 (en) * | 2008-04-15 | 2009-07-23 | 한국건설기술연구원 | Concrete composition for repair of pavement |
| CN106565164A (en) * | 2015-10-09 | 2017-04-19 | 中建西部建设股份有限公司 | Modified high-sulfate-resistant corrosion-resistant concrete |
| CN105948615A (en) * | 2016-04-28 | 2016-09-21 | 十九冶成都建设有限公司 | Impermeable concrete prepared with hearthstone powder |
| CN109206093A (en) * | 2018-08-31 | 2019-01-15 | 上海翟氏混凝土有限公司 | A kind of high-flowing concrete mixture and preparation method thereof |
| CN109928665A (en) * | 2019-05-07 | 2019-06-25 | 杭州中荷智慧城市科技有限公司 | A kind of concrete admixture |
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Application publication date: 20200410 |