CN104529224A - Concrete modifier - Google Patents
Concrete modifier Download PDFInfo
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- CN104529224A CN104529224A CN201410807010.6A CN201410807010A CN104529224A CN 104529224 A CN104529224 A CN 104529224A CN 201410807010 A CN201410807010 A CN 201410807010A CN 104529224 A CN104529224 A CN 104529224A
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- silicon dioxide
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Abstract
The invention discloses a concrete modifier, comprising the following components in parts by weight: 5-15 parts of calcium powder, 1-5 parts of calcium lignosulphonate powder, 4-8 parts of silicon dioxide powder, 2-6 parts of dispersible emulsion powder and 20-40 parts of coal ash powder. According to the concrete modifier disclosed by the invention, the performance of the concrete can be effectively improved; the concrete modifier is good in concrete combining ability, and good in antifreeze erosion resistance, and can be widely applied to northern cold regions and salinization regions.
Description
Technical field
The present invention relates to building material field, particularly relate to a kind of concrete modifying agent.
Background technology
Concrete, referred to as " concrete (t ó ng) ": refer to the general designation being cemented to overall engineered composite material by gelling material by gathering materials.Usually concrete one word said refers to makes gelling material with cement, and sand, masonry gather materials; Coordinate by a certain percentage with water (can contain admixture and adulterant), the cement concrete obtained through stirring, also claims normal concrete, and it is widely used in civil engineering work.
In north cold area and salinization area, because of bad environments, the freeze injury of concrete structure destroys, crack can be produced and peel off, the erosion of salinization is also all comparatively serious in addition, thus can cause the seepage, cracking etc. of concrete works, reduces its weather resistance and security.And normal concrete to obtain strength grade lower, frost resistance and corrosion resistance poor, thus need a kind of freeze proof and concrete that corrosion resistance is strong badly.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of concrete modifying agent, can effectively improve concrete performance, and make concrete binding ability strong, freeze proof corrosion resistance is good.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of concrete modifying agent, comprise following weight proportion component:
Calcium powder 5 ~ 15 parts
Lignosulfonic acid calcium powder 1 ~ 5 part
Silicon dioxide powder 4 ~ 8 parts
Dispersed latex powder 2 ~ 6 parts
Coal ash powder 20 ~ 40 parts.
In a preferred embodiment of the present invention, described concrete modifying agent comprises following weight proportion component:
Calcium powder 8 parts
Lignosulfonic acid calcium powder 3 parts
Silicon dioxide powder 5 parts
Dispersed latex powder 4 parts
Coal ash powder 25 parts.
In a preferred embodiment of the present invention, the film-forming temperature of described dispersed latex powder is more than or equal to 0 DEG C.
In a preferred embodiment of the present invention, described silicon dioxide powder is nano-silica powder.
The invention has the beneficial effects as follows: concrete modifying agent of the present invention, can effectively improve concrete performance, make concrete binding ability strong, freeze proof corrosion resistance is good, can be widely used in north cold area and salinization area.
Embodiment
Below preferred embodiment of the present invention is described in detail, can be easier to make advantages and features of the invention be readily appreciated by one skilled in the art, thus more explicit defining is made to protection scope of the present invention.
Embodiment 1
Make concrete modifying agent: take following component according to following weight proportion: calcium powder, 8 parts; Lignosulfonic acid calcium powder, 3 parts; Silicon dioxide powder, 5 parts; Dispersed latex powder, 4 parts; Coal ash powder; 25 parts.The above-mentioned component taken is mixed, forms concrete modifying agent sample one.
Make concrete: take following component according to following weight proportioning: silicate cement 100 parts, 80 parts, sand, rubble 150 parts, 50 parts, water, one 5 parts, concrete modifying agent sample.Added by the concrete modifying agent sample one taken in 1/2 water taken to stir and form mixing solutions, the silicate cement then will taken in 5 seconds, sand adds in concrete mixer together with mixing solutions, and stir 15 seconds, stirring velocity is 30 revs/min; Finally add the rubble and remaining water that take, stir 20 seconds, stirring velocity is 30 revs/min, forms concrete mixture.
Cast test specimen: with above-mentioned concrete mixture casting test specimen one.
Embodiment 2
Make concrete modifying agent: take following component according to following weight proportion: calcium powder, 10 parts; Lignosulfonic acid calcium powder, 2 parts; Silicon dioxide powder, 6 parts; Dispersed latex powder, 5 parts; Coal ash powder; 35 parts.The above-mentioned component taken is mixed, forms concrete modifying agent sample two.
Make concrete: take following component according to following weight proportioning: silicate cement 100 parts, 100 parts, sand, rubble 180 parts, 60 parts, water, 26 parts, concrete modifying agent sample.Added by the concrete modifying agent sample one taken in 2/3 water taken to stir and form mixing solutions, the silicate cement then will taken in 5 seconds, sand adds in concrete mixer together with mixing solutions, and stir 15 seconds, stirring velocity is 35 revs/min; Finally add the rubble and remaining water that take, stir 20 seconds, stirring velocity is 35 revs/min, forms concrete mixture.
Cast test specimen: with above-mentioned concrete mixture casting test specimen two.
Carry out freezing and thawing test to above-mentioned test specimen one and test specimen two, sulphate attack is tested, and freezing tolerance and corrosion resistance improve 3 ~ 5 times.
Concrete modifying agent of the present invention, can effectively improve concrete performance, and make concrete binding ability strong, freeze proof corrosion resistance is good, can be widely used in north cold area and salinization area.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (4)
1. a concrete modifying agent, is characterized in that, comprises following weight proportion component:
Calcium powder 5 ~ 15 parts
Lignosulfonic acid calcium powder 1 ~ 5 part
Silicon dioxide powder 4 ~ 8 parts
Dispersed latex powder 2 ~ 6 parts
Coal ash powder 20 ~ 40 parts.
2. concrete modifying agent according to claim 1, is characterized in that, comprises following weight proportion component:
Calcium powder 8 parts
Lignosulfonic acid calcium powder 3 parts
Silicon dioxide powder 5 parts
Dispersed latex powder 4 parts
Coal ash powder 25 parts.
3. concrete modifying agent according to claim 1, is characterized in that, the film-forming temperature of described dispersed latex powder is more than or equal to 0 DEG C.
4. concrete modifying agent according to claim 1, is characterized in that, described silicon dioxide powder is nano-silica powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410807010.6A CN104529224A (en) | 2014-12-23 | 2014-12-23 | Concrete modifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410807010.6A CN104529224A (en) | 2014-12-23 | 2014-12-23 | Concrete modifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104529224A true CN104529224A (en) | 2015-04-22 |
Family
ID=52844913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410807010.6A Pending CN104529224A (en) | 2014-12-23 | 2014-12-23 | Concrete modifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104529224A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105110686A (en) * | 2015-08-31 | 2015-12-02 | 广西路佳道桥勘察设计有限公司 | Concrete and novel modifier thereof |
| CN105174780A (en) * | 2015-08-31 | 2015-12-23 | 广西路佳道桥勘察设计有限公司 | Concrete additive and concrete thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1850707A (en) * | 2006-05-11 | 2006-10-25 | 同济大学 | Self-compacted concrete of resisting erosion of sulfate and its preparing method |
| CN1296308C (en) * | 2003-11-28 | 2007-01-24 | 西北农林科技大学 | Nanometer based concrete modifier |
| CN101759409A (en) * | 2009-12-24 | 2010-06-30 | 四川省富侨工业有限公司 | Anti-freezing concrete |
| CN102320774A (en) * | 2011-07-19 | 2012-01-18 | 孙建志 | Anticorrosive, antirust, anti-seepage and anti-cracking composite additive special for concrete |
| CN102863174A (en) * | 2012-09-08 | 2013-01-09 | 王桂明 | Cement concrete corrosion inhibitor |
-
2014
- 2014-12-23 CN CN201410807010.6A patent/CN104529224A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1296308C (en) * | 2003-11-28 | 2007-01-24 | 西北农林科技大学 | Nanometer based concrete modifier |
| CN1850707A (en) * | 2006-05-11 | 2006-10-25 | 同济大学 | Self-compacted concrete of resisting erosion of sulfate and its preparing method |
| CN101759409A (en) * | 2009-12-24 | 2010-06-30 | 四川省富侨工业有限公司 | Anti-freezing concrete |
| CN102320774A (en) * | 2011-07-19 | 2012-01-18 | 孙建志 | Anticorrosive, antirust, anti-seepage and anti-cracking composite additive special for concrete |
| CN102863174A (en) * | 2012-09-08 | 2013-01-09 | 王桂明 | Cement concrete corrosion inhibitor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105110686A (en) * | 2015-08-31 | 2015-12-02 | 广西路佳道桥勘察设计有限公司 | Concrete and novel modifier thereof |
| CN105174780A (en) * | 2015-08-31 | 2015-12-23 | 广西路佳道桥勘察设计有限公司 | Concrete additive and concrete thereof |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150422 |
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| WD01 | Invention patent application deemed withdrawn after publication |