CN104529336A - Method for preparing low-alkali concrete - Google Patents
Method for preparing low-alkali concrete Download PDFInfo
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- CN104529336A CN104529336A CN201410806977.2A CN201410806977A CN104529336A CN 104529336 A CN104529336 A CN 104529336A CN 201410806977 A CN201410806977 A CN 201410806977A CN 104529336 A CN104529336 A CN 104529336A
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Abstract
The invention discloses a method for preparing low-alkali concrete. The method specifically comprises the following steps: manufacturing a concrete modifier; weighing the following components according to the ratio: calcium powder, calcium lignosulphonate powder, silica dioxide powder, dispersible emulsion powder and coal ash powder; uniformly mixing the weighed component, and forming a concrete modifier; manufacturing the concrete; weighing the following components according to the ratio: Portland cement, sand, gravel, water and the concrete modifier; adding the weighed concrete modifier into the weighed 1/2-2/3 water, stirring to form a mixed solution, adding the weighed cement, sand and mixed solution into a concrete stirrer, and stirring; and finally, adding the weighed gravel and residual water, stirring, and forming the concrete mixture. According to the method for preparing the low-alkali concrete disclosed by the invention, the preparation method is simple, the performance of the concrete can be effectively improved, so that the concrete is high in combining capacity, excellent freeze resistance and erosion resistance and can be widely applied to cold regions of the North and alkali-saline regions.
Description
Technical field
The present invention relates to building material field, particularly relate to a kind of preparation method of low-alkali concrete.
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 preparation method of low-alkali concrete of the present invention, and preparation method simply 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: the preparation method providing a kind of low-alkali concrete, specifically comprises the following steps:
(1), concrete modifying agent is made: take following component according to proportioning: calcium powder, lignosulfonic acid calcium powder, silicon dioxide powder, dispersed latex powder, coal ash powder; The above-mentioned component taken is mixed, forms concrete modifying agent;
(2), concrete is made: take following component according to proportioning: silicate cement, sand, rubble, water, concrete modifying agent; Added by the concrete modifying agent taken in 1/2 ~ 2/3 water taken to stir and form mixing solutions, the cement then will taken in 5 ~ 6 seconds, sand adds in concrete mixer together with mixing solutions, and stir 15 seconds, stirring velocity is 30 ~ 35 revs/min; Finally add the rubble and remaining water that take, stir 20 seconds, stirring velocity is 30 ~ 35 revs/min, forms concrete mixture.
In a preferred embodiment of the present invention, described low-alkali concrete comprises following weight proportion component:
Cement 100 parts
50 ~ 60 parts, water
150 ~ 250 parts, sand
Concrete modifying agent 5 ~ 8 parts;
Described concrete modifying agent 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.
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.
In a preferred embodiment of the present invention, described cement is low alkali portland cement.
The invention has the beneficial effects as follows: the preparation method of low-alkali concrete of the present invention, preparation method simply 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: low alkali portland 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.
The preparation method of low-alkali concrete of the present invention, preparation method simply 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 (6)
1. a preparation method for low-alkali concrete, is characterized in that, specifically comprises the following steps:
(1), concrete modifying agent is made: take following component according to proportioning: calcium powder, lignosulfonic acid calcium powder, silicon dioxide powder, dispersed latex powder, coal ash powder; The above-mentioned component taken is mixed, forms concrete modifying agent;
(2), concrete is made: take following component according to proportioning: silicate cement, sand, rubble, water, concrete modifying agent; Added by the concrete modifying agent taken in 1/2 ~ 2/3 water taken to stir and form mixing solutions, the cement then will taken in 5 ~ 6 seconds, sand adds in concrete mixer together with mixing solutions, and stir 15 seconds, stirring velocity is 30 ~ 35 revs/min; Finally add the rubble and remaining water that take, stir 20 seconds, stirring velocity is 30 ~ 35 revs/min, forms concrete mixture.
2. the preparation method of low-alkali concrete according to claim 1, is characterized in that, described low-alkali concrete comprises following weight proportion component:
Cement 100 parts
50 ~ 60 parts, water
150 ~ 250 parts, sand
Concrete modifying agent 5 ~ 8 parts;
Described concrete modifying agent 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.
3. the preparation method of low-alkali concrete according to claim 2, is characterized in that, 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.
4. the preparation method of low-alkali concrete 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.
5. the preparation method of low-alkali concrete according to claim 1, is characterized in that, described silicon dioxide powder is nano-silica powder.
6. the preparation method of low-alkali concrete according to claim 1, is characterized in that, described cement is low alkali portland cement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410806977.2A CN104529336A (en) | 2014-12-23 | 2014-12-23 | Method for preparing low-alkali concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410806977.2A CN104529336A (en) | 2014-12-23 | 2014-12-23 | Method for preparing low-alkali concrete |
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| CN104529336A true CN104529336A (en) | 2015-04-22 |
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| CN201410806977.2A Pending CN104529336A (en) | 2014-12-23 | 2014-12-23 | Method for preparing low-alkali concrete |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105110684A (en) * | 2015-08-31 | 2015-12-02 | 广西路佳道桥勘察设计有限公司 | Concrete and modifier thereof |
| CN115504711A (en) * | 2022-09-06 | 2022-12-23 | 湖州三中混凝土有限公司 | Processing technology of modified concrete with crack resistance and impact resistance |
| WO2023207125A1 (en) * | 2022-04-24 | 2023-11-02 | 核工业北京地质研究院 | Low-ph-value cementing material and preparation method therefor |
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 CN201410806977.2A patent/CN104529336A/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 |
Non-Patent Citations (1)
| Title |
|---|
| 金立虎: "《混凝土自保温复合砌块生产与应用技术问答》", 31 July 2010, 北京：中国建材工业出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105110684A (en) * | 2015-08-31 | 2015-12-02 | 广西路佳道桥勘察设计有限公司 | Concrete and modifier thereof |
| WO2023207125A1 (en) * | 2022-04-24 | 2023-11-02 | 核工业北京地质研究院 | Low-ph-value cementing material and preparation method therefor |
| CN115504711A (en) * | 2022-09-06 | 2022-12-23 | 湖州三中混凝土有限公司 | Processing technology of modified concrete with crack resistance and impact resistance |
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Application publication date: 20150422 |