CN109516709A - Pervious concrete presses down alkali additive - Google Patents
Pervious concrete presses down alkali additive Download PDFInfo
- Publication number
- CN109516709A CN109516709A CN201710844788.8A CN201710844788A CN109516709A CN 109516709 A CN109516709 A CN 109516709A CN 201710844788 A CN201710844788 A CN 201710844788A CN 109516709 A CN109516709 A CN 109516709A
- Authority
- CN
- China
- Prior art keywords
- pervious concrete
- alkali additive
- suppression
- additive
- concrete product
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
-
- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/60—Agents for protection against chemical, physical or biological attack
- C04B2103/603—Agents for controlling alkali-aggregate reactions
Abstract
The present invention provides a kind of with suppression alkali, enhancing, the pervious concrete suppression alkali additive of weather resistance and preparation method.Press down alkali additive using pervious concrete provided by the invention, in 1~2% ratio of cement total weight, after mix is uniform in mixing water needed for pervious concrete suppression alkali additive is first pre-added to pervious concrete material, then the aqueous solution of the suppression alkali additive containing pervious concrete and pervious concrete siccative mix is uniform.Pervious concrete provided by the invention presses down alkali additive, and the pervious concrete product accumulation of salt in the surface soil can be effectively suppressed, improve the intensity of pervious concrete product, improve the weather resistance of pervious concrete product, increase the service life of pervious concrete product.
Description
Technical field
The present invention relates to a kind of pervious concrete additives, specifically a kind of to have inhibition pervious concrete product general
Alkali, the suppression alkali additive and preparation method for improving pervious concrete product strength, improving pervious concrete product weather resistance.
Background technique
Pervious concrete is formed by coarse aggregate, cement, reinforcing agent and water mixing, and coarse aggregate surface coats a thin layer water
Mud mutually bonds and forms the equally distributed honeycomb structure in hole, has the characteristics that ventilative, permeable and light-weight.It is permeable mixed
Solidifying soil can during the rainfall infiltrate into rainwater original place in soil, to generate purifying water body and protection zone water resource
Effect is that one kind may advantageously facilitate water circulation, improves the environment-friendly type building material of urban ecological environment.It is thus more and more extensive
Ground is applied to cell road, parking lot and low load highway pavement.
Main cementing material of the portland cement as pervious concrete, mainly by tricalcium silicate, dicalcium silicate, aluminic acid
Tricalcium, tetra calcium aluminoferrite composition, tricalcium silicate, dicalcium silicate account for the 75% of cement weight, and the hydrated product that they are generated is main
It is hydrated calcium silicate and calcium hydroxide.The low stability difference of calcium hydroxide intensity is easy to be etched and reduce pervious concrete product
Intensity, and they are mostly enriched in Behavior of Hardened Cement Paste and the interface to gather materials, and organize crystalline substance and form the accumulation of salt in the surface soil at coarse grain, not only influence saturating
Water coagulation soil beauty will also result in the cohesion decline at interface, reduce pervious concrete product strength.Do not have so inventing one kind
The inhibition pervious concrete product accumulation of salt in the surface soil, raising pervious concrete product strength, the improvement pervious concrete product of hydrophobicity are weather-proof
The suppression alkali additive and preparation method of performance are very necessary.
Summary of the invention
The object of the present invention is to provide a kind of inhibition pervious concrete product accumulation of salt in the surface soil, improve pervious concrete product strength,
Improve the suppression alkali additive and preparation method of pervious concrete product weather resistance.
The present invention is realized by the following technical solutions, and a kind of pervious concrete suppression alkali additive is by following raw materials according by weight
Amount ratio composition, deionized water 15~25%, chelating agent 10~14%, potassium carbonate 20~25%, water-reducing agent 20~26%, silicic acid
Sodium 7~20%, fumed silica 5~13%.
Start liquid blender after above-mentioned raw material are weighed in proportion, and the raw material that will weigh are according to sequence in bracket
(deionized water~chelating agent~potassium carbonate~water-reducing agent~sodium metasilicate~fumed silica) sequentially add liquid stirrers into
Row mixing is uniformly mixing to obtain the pervious concrete suppression alkali additive.In 1~2% ratio of cement total weight when use,
After mix is uniform in mixing water needed for pervious concrete suppression alkali additive is first pre-added to pervious concrete material, then it will contain
The aqueous solution and pervious concrete siccative mix of pervious concrete suppression alkali additive are uniform.
The aquation calcium hydroxide reaction of cement generates silicic acid gel object in additive and pervious concrete of the present invention
Matter, it is suppressed that the accumulation of salt in the surface soil phenomenon of pervious concrete product also improves the intensity of pervious concrete product, improves permeable coagulation
The weather resistance of native produce increases the service life of pervious concrete product.
Specific embodiment
Embodiment 1
A kind of pervious concrete suppression alkali additive, is made of, deionized water 20% following raw materials according ratio by weight, chelates
Agent 10%, potassium carbonate 25%, water-reducing agent 20%, sodium metasilicate 20%, fumed silica 5%.
Embodiment 2
A kind of pervious concrete suppression alkali additive, is made of, deionized water 15% following raw materials according ratio by weight, chelates
Agent 14%, potassium carbonate 20%, water-reducing agent 26%, sodium metasilicate 9%, fumed silica 16%.
Embodiment 3
A kind of pervious concrete suppression alkali additive, is made of, deionized water 25% following raw materials according ratio by weight, chelates
Agent 12%, potassium carbonate 20%, water-reducing agent 23%, sodium metasilicate 7%, fumed silica 13%.
Above-mentioned pervious concrete suppression alkali additive is added in pervious concrete material, by pervious concrete cement (weight
Amount) 1~2% ratio, first by pervious concrete suppression alkali additive be pre-added to pervious concrete material needed for mixing water
After middle mix is uniform, then the aqueous solution of the suppression alkali additive containing pervious concrete and pervious concrete siccative mix is uniform.Using
After the pervious concrete suppression alkali additive of the present embodiment, suppression alkali effect is good, improves pervious concrete product strength, is effectively improved
The weather resistance of pervious concrete product, improves the service life of pervious concrete.With very high promotion and application valence
Value.
Claims (2)
1. a kind of pervious concrete presses down alkali additive, it is made of by weight percentage following raw materials according, deionized water 15~25%, chela
Mixture 10~14%, potassium carbonate 20~25%, water-reducing agent 20~26%, sodium metasilicate 7~20%, fumed silica 5~13%.
2. the preparation method of pervious concrete as described in claim 1 suppression alkali additive, including the use of liquid stirrers according to
The weight percent compares the raw material and weighs, and the raw material is mixed, is uniformly mixing to obtain the pervious concrete
Press down alkali additive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710844788.8A CN109516709A (en) | 2017-09-19 | 2017-09-19 | Pervious concrete presses down alkali additive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710844788.8A CN109516709A (en) | 2017-09-19 | 2017-09-19 | Pervious concrete presses down alkali additive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109516709A true CN109516709A (en) | 2019-03-26 |
Family
ID=65767661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710844788.8A Pending CN109516709A (en) | 2017-09-19 | 2017-09-19 | Pervious concrete presses down alkali additive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109516709A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110590216A (en) * | 2019-08-28 | 2019-12-20 | 中交第一公路勘察设计研究院有限公司 | Permeable concrete liquid reinforcing agent and preparation method and use method thereof |
| CN115340390A (en) * | 2022-07-14 | 2022-11-15 | 洛阳理工学院 | Preparation method of red mud-based non-fired high-strength clay brick alkali inhibitor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2295928A1 (en) * | 1974-12-28 | 1976-07-23 | Matsushita Electric Works Ltd | COMPOSITIONS AND METHODS FOR THE PRODUCTION OF CEMENT CEMENT |
| CN101913794A (en) * | 2010-08-13 | 2010-12-15 | 江苏尼高科技有限公司 | Cement mortar saltpetering inhibition additive |
| CN103274633A (en) * | 2013-06-14 | 2013-09-04 | 东南大学 | Composite type cement-based whiskering resistant admixture |
| CN104628298A (en) * | 2013-11-06 | 2015-05-20 | 郭太宗 | Cement alkali resistance additive |
| CN105503030A (en) * | 2015-12-30 | 2016-04-20 | 卓达新材料科技集团威海股份有限公司 | Alkali inhibitor used for ordinary Portland cement |
-
2017
- 2017-09-19 CN CN201710844788.8A patent/CN109516709A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2295928A1 (en) * | 1974-12-28 | 1976-07-23 | Matsushita Electric Works Ltd | COMPOSITIONS AND METHODS FOR THE PRODUCTION OF CEMENT CEMENT |
| CN101913794A (en) * | 2010-08-13 | 2010-12-15 | 江苏尼高科技有限公司 | Cement mortar saltpetering inhibition additive |
| CN103274633A (en) * | 2013-06-14 | 2013-09-04 | 东南大学 | Composite type cement-based whiskering resistant admixture |
| CN104628298A (en) * | 2013-11-06 | 2015-05-20 | 郭太宗 | Cement alkali resistance additive |
| CN105503030A (en) * | 2015-12-30 | 2016-04-20 | 卓达新材料科技集团威海股份有限公司 | Alkali inhibitor used for ordinary Portland cement |
Non-Patent Citations (3)
| Title |
|---|
| 夏征兵等: "《建筑材料 第2版》", 31 August 2016, 东南大学出版社 * |
| 沈家康: "《房屋结构与维修》", 31 March 2002, 中国电力出版社 * |
| 陈振木等: "《城市道路工程施工手册》", 3 June 2004, 中国建筑工业出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110590216A (en) * | 2019-08-28 | 2019-12-20 | 中交第一公路勘察设计研究院有限公司 | Permeable concrete liquid reinforcing agent and preparation method and use method thereof |
| CN115340390A (en) * | 2022-07-14 | 2022-11-15 | 洛阳理工学院 | Preparation method of red mud-based non-fired high-strength clay brick alkali inhibitor |
| CN115340390B (en) * | 2022-07-14 | 2023-10-10 | 洛阳理工学院 | Preparation method of red mud-based baking-free high-strength clay brick alkali inhibitor |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190326 |
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| WD01 | Invention patent application deemed withdrawn after publication |