CN103819157A - Novel concrete - Google Patents
Novel concrete Download PDFInfo
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- CN103819157A CN103819157A CN201310726001.XA CN201310726001A CN103819157A CN 103819157 A CN103819157 A CN 103819157A CN 201310726001 A CN201310726001 A CN 201310726001A CN 103819157 A CN103819157 A CN 103819157A
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- exciting agent
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- breeze
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Abstract
The invention discloses a novel concrete which comprises a gelatinizer, wherein the gelatinizer comprises cement, coal ash and mineral powder. An exciting agent is further added in the concrete to activate the coal ash and the mineral powder, and the exciting agent is sodium sulfate. According to the technical scheme, the exciting agent is added in the novel concrete, so that the chemical properties of the composite admixture of the coal ash and the mineral powder are activated. Meanwhile, the excellent activating and filling effects are utilized to block a capillary channel in a concrete block, so that the purposes of improving the strength, the compactness and the durability of the concrete block are fulfilled.
Description
Technical field
The present invention relates to a kind of new concrete, relate in particular to a kind of new concrete that uses exciting agent.
Background technology
Along with the widespread use of concrete in China's building, utilize industrial residue to produce various light aggregate concrete building blocks and also develop rapidly.Utilize industrial residue can improve the thermal property of building block, reduce again the production cost of building block, there is good economic benefit and social benefit.Particularly in these concrete segments, add suitable admixture and more can strengthen the mechanical property of building block.
Flyash is a kind of mixing material like volcano grey matter that the coal dust after high-temp combustion forms.This material is used as the BSA of mixture and is used widely in concrete at present.Water of coal ash heat-transmission is low, wide material sources, cheap, by a certain amount of coal ash instead cement or fine aggregate, without being directly spiked in concrete of modification, make flyash concrete, can increase the mobility of fresh concrete, improve bleeding segregation, late strength of concrete is increased, endurance quality improves.But, flyash activity is lower, when flyash replaces that cement is double while doing gelling material concrete batching, when rate of displacement larger, while exceeding 80%, must excite the activity of flyash by the mode of adding some chemical activators, realize and strengthen power saving function, and in concrete after adding coal ash, its gain in strength is slow, cause early strength on the low side, particle mass and chemical composition fluctuation is larger, the more difficult control of concrete mass ratio that causes practical flyash to be made, the problems referred to above are all the major causes that causes flyash rate of utilization to differ greatly in various places, countries in the world.Breeze (mineral powder) is called again slag micropowder, and granulated blast-furnace slag drying, grinding reach regulation fineness, the powder body material of the activity index that conforms with the regulations.Breeze is a kind of gelling material of high-quality, is therefore often used as the mixing spike of cement by people.Because slag particle is larger, be not easy to exciting of its activity, so people are mostly according to different purposes at present, by cement clinker and the Blast Furnace Ore quarrel technique of fine grinding respectively, produce respectively the ore deposit quarrel micro mist of different performance and specification, and with its replacing partial cement grog, mixed in concrete as supplementary cementitious material.
Summary of the invention
One of object of the present invention is to provide a kind of new concrete, uses exciting agent, is used for exciting chemically reactive material on the low side.Realize the activation of flyash and breeze chemical property.Utilize its good active effect and filling effect simultaneously, the capillary channel of concrete segment inside is stopped up, reach the object of the intensity, degree of compactness and the weather resistance that improve concrete segment.
For achieving the above object, new concrete of the present invention, comprises jelling agent, and described jelling agent comprises cement, flyash, breeze.In described concrete, add exciting agent in order to activate described flyash and breeze, described exciting agent is sodium sulfate again.
Further, the proportioning of described exciting agent and described jelling agent is 1:33.3.
Further, flyash-breeze combined addition material account for respectively whole gelling material 60%, 70%, in 80% 3 kind of situation, add respectively exciting agent.The technical program, by add exciting agent in new concrete, makes the activation of flyash-breeze combined addition material chemical property.Utilize its good active effect and filling effect simultaneously, the capillary channel of concrete segment inside is stopped up, reach the object of the intensity, degree of compactness and the weather resistance that improve concrete segment.
Embodiment
Embodiment with concrete is further explained to explanation to new concrete of the present invention below, but this is explained and is not formed the improper restriction to technical solution of the present invention.
The present invention is directed to flyash-breeze combined addition material account for respectively whole gelling material 60%, 70%, 80%, in 100% 4 kind of situation, add sodium sulfate as exciting agent, the proportioning of exciting agent and described jelling agent is 1:33.3.
In order to test activation and the stimulation effect of exciting agent to flyash, breeze, prove flyash, breeze under exciting agent booster action, place of cement is made the problem such as feasibility and alternative, consumption of concrete segment as gelling material.Examination chosen flyash-breeze combined addition material account for respectively whole gelling material 60%, 70%, 80%, 100% 4 kind of situation, and done respectively without exciting agent, had exciting agent test.Refer to following table 1:
From table 1, in test, chosen flyash-breeze combined addition material account for respectively whole gelling material 60%, 70%, 80%, 100% 4 kind of situation, and done respectively without exciting agent, had exciting agent test.From test-results, we can see, in the test of four kinds of different addition quantities, one group of anti-folding of the building block of surveying of admixture exciting agent, compressive strength rate not anti-folding, the ultimate compression strength of one group of admixture exciting agent all have raising in various degree.Wherein combined addition material accounts for 100%(2#, 3#) time, the 4.11MPa of 7 days folding strengths of building block from being increased to exciting agent (3#) without the 0.92MPa of exciting agent (2#), has improved 346.7%; 28 days folding strengths 5.26MPa from being increased to exciting agent (3#) without the 1.64MPa of exciting agent (2#), has improved 220.7%; Within 7 days, ultimate compression strength is from 2.76MPa(2#) be increased to 21.6MPa(3#), increase by 682.6%, 28 day ultimate compression strength from 8.0MPa(2#) be increased to 24.3MPa(3#), increase by 203.8%.Combined addition material accounts for 80%(4#, 5#) time, the 7.21MPa of 7 days folding strengths of building block from being increased to exciting agent (5#) without the 3.73MPa of exciting agent (4#), has improved 93.3%; 28 days folding strengths 7.60MPa from being increased to exciting agent (5#) without the 4.30MPa of exciting agent (4#), has improved 76.7%; Within 7 days, ultimate compression strength is from 30.8MPa(4#) be increased to 34.6MPa(5#), increase by 12.3%, 28 day ultimate compression strength from 31.6MPa(4#) be increased to 35.2(5#), increase by 11.4%.In like manner, combined addition material accounts for gelling material 70%(6#, 7#) time, add exciting agent than do not add 7 days folding strengths of exciting agent and 28 days folding strengths improved respectively 31.8% and 49.5%, 7 day ultimate compression strength and 28 days ultimate compression strength improved respectively 10.3% and 17.9%; Combined addition agent accounts for 60%(8#, 9#) time, add exciting agent than 7 days folding strengths that do not add exciting agent and 28 days folding strengths improved respectively 29.9% and 46.2%, 7 day ultimate compression strength and 28 days ultimate compression strength improved respectively 8.9% and 13.6%.
In addition, 2#, 4#, the test of 6#, 8# group do not have admixture exciting agent, from table 2.2, along with the increase of flyash-breeze combined addition material consumption, successively decreasing of cement consumption, the anti-folding of building block, ultimate compression strength constantly reduce, in the time not adding cement completely, be 100%(2#, the 3# that combined addition material accounts for gelling material) time, the anti-folding of building block, ultimate compression strength reach minimum, 7 days folding strengths are only 0.92MPa(2#), 28 days folding strengths are only 1.64MPa(2#), 7 days ultimate compression strength and 28 days ultimate compression strength are low to moderate 2.76MPa(2#), 8.0MPa(2#).This explanation does not have the excitation of exciting agent to flyash-breeze combined addition material, the combined addition material being formed by flyash-breeze as concrete segment gelling material very micro-to the intensity contribution of concrete segment.
Below that flyash-breeze combined addition material accounts under four kinds of different situations of gelling material ratio, the impact of exciting agent on concrete segment mechanical property.
Flyash-breeze combined addition material accounts under four kinds of different situations of gelling material ratio, and exciting agent is known on the impact of concrete segment mechanical property.Adding after the exciting agent of sodium sulfate, make the activation of flyash-breeze combined addition material chemical property by new concrete of the present invention.Utilize its good active effect and filling effect simultaneously, the capillary channel of concrete segment inside is stopped up, reach the object of the intensity, degree of compactness and the weather resistance that improve concrete segment.
It should be noted that; the above-mentioned explanation of disclosed embodiment makes professional and technical personnel in the field to carry out multiple types like changing and revising for the present embodiment apparently; this similar variation is all distortion that those skilled in the art can directly draw or be easy to just associate from content disclosed by the invention, all should belong to protection scope of the present invention.Therefore the present invention can not be subject to the restriction of this embodiment.
Claims (5)
1. a new concrete, comprises jelling agent, and described jelling agent comprises cement, flyash, breeze, it is characterized in that:
Described concrete also comprises exciting agent, and described exciting agent is sodium sulfate.
2. new concrete as claimed in claim 1, is characterized in that: the proportioning of described exciting agent and described jelling agent is 1:33.3.
3. new concrete as claimed in claim 1, is characterized in that: described cement and the flyash proportion in jelling agent is 60%.
4. new concrete as claimed in claim 1, is characterized in that: described cement and the flyash proportion in jelling agent is 70%.
5. new concrete as claimed in claim 1, is characterized in that: described cement and the flyash proportion in jelling agent is 80%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310726001.XA CN103819157A (en) | 2013-12-25 | 2013-12-25 | Novel concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310726001.XA CN103819157A (en) | 2013-12-25 | 2013-12-25 | Novel concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103819157A true CN103819157A (en) | 2014-05-28 |
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| CN201310726001.XA Pending CN103819157A (en) | 2013-12-25 | 2013-12-25 | Novel concrete |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109231904A (en) * | 2018-12-03 | 2019-01-18 | 中建西部建设新疆有限公司 | A kind of early-strength self-compacting concrete and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060042516A1 (en) * | 2004-08-27 | 2006-03-02 | Brown Paul W | Methods of reducing hydroxyl ions in concrete pore solutions |
| CN102659363A (en) * | 2012-04-28 | 2012-09-12 | 江苏名和集团有限公司 | Light high-strength concrete and preparation method thereof |
| CN103121814A (en) * | 2013-02-22 | 2013-05-29 | 广西工学院 | Lightweight concrete and preparation method and applications thereof |
-
2013
- 2013-12-25 CN CN201310726001.XA patent/CN103819157A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060042516A1 (en) * | 2004-08-27 | 2006-03-02 | Brown Paul W | Methods of reducing hydroxyl ions in concrete pore solutions |
| CN102659363A (en) * | 2012-04-28 | 2012-09-12 | 江苏名和集团有限公司 | Light high-strength concrete and preparation method thereof |
| CN103121814A (en) * | 2013-02-22 | 2013-05-29 | 广西工学院 | Lightweight concrete and preparation method and applications thereof |
Non-Patent Citations (1)
| Title |
|---|
| 彭杰等: "矿粉-粉煤灰水泥基材料的试验研究", 《混凝土》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109231904A (en) * | 2018-12-03 | 2019-01-18 | 中建西部建设新疆有限公司 | A kind of early-strength self-compacting concrete and preparation method thereof |
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| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Dong Jianmiao Inventor after: Wu Huiqin Inventor after: Chen Xiaoli Inventor before: Wu Huiqin Inventor before: Chen Xiaoli |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: WU HUIQIN CHEN XIAOLI TO: DONG JIANMIAO WU HUIQIN CHEN XIAOLI |
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| C12 | Rejection of a patent application after its publication | ||
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Application publication date: 20140528 |