CN1066433A - Sand-cement slurry or concrete erosion resistant material and manufacture method thereof - Google Patents
Sand-cement slurry or concrete erosion resistant material and manufacture method thereof Download PDFInfo
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- CN1066433A CN1066433A CN 91102743 CN91102743A CN1066433A CN 1066433 A CN1066433 A CN 1066433A CN 91102743 CN91102743 CN 91102743 CN 91102743 A CN91102743 A CN 91102743A CN 1066433 A CN1066433 A CN 1066433A
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- resistant material
- erosion resistant
- cement
- concrete
- gypsum
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Abstract
The present invention is a kind of sand-cement slurry or concrete erosion resistant material that is subjected to seawater and other eroding water that be applicable to.Make through grinding by siliceous material, gypsum, admixture etc.When mixing system sand-cement slurry or concrete, mix by weight erosion resistant material, can make the vigorous erosion of corrosive waters such as mortar or concrete opposing seawater, vitriol, also have compensating concrete to shrink less than 50%, high characteristic such as impervious can prolong concrete work-ing life.
This erosion resistant material is easy to use, only needs mix a certain amount of erosion resistant material in the silicate series cement, just can obtain good effect, is a kind of economy, suitable erosion resistant material.
Description
The present invention is a kind of sand-cement slurry or concrete erosion resistant material that is subjected to seawater and other eroding water that be applicable to.
In the prior art, use silicate series cement (silicate cement, ordinary Portland cement, Portland blast etc.), 3CaOSiO in the cement clinker
2, 3CaOAl
2O
3Content higher, the erosion (seeing Table 2) that can not resist eroding water; Sulfate resisting Portland cement is because restriction 3CaSiO
2, 3CaOAl
2O
3Content, have relatively high expectations for the starting material of manufacture of cement, produce difficulty, and the density of the physical and mechanical property of cement and cement stone is relatively poor, the performance of anti-seawater and other eroding water is also undesirable.Separate out a large amount of Ca(OH during these hydrated cementitious)
2And high alkalinity aquation calcium aluminate (4CaOAl
2O
312H
2O) Ca(OH)
2Solubleness is very big, easily leaching from cement stone, high alkalinity aquation calcium aluminate is a kind of extremely unsettled hydrated product in cement stone, along with Ca(OH)
2Separate out and decompose.Again because the silicate series cement, (the SO in the cement usually of calcium sulfate deficiency when manufacture of cement
3Be about 2.0%), hydrated cementitious forms high alkalinity aquation calcium aluminate, low sulfur type calcium sulphoaluminate (3CaOAl
2O
3CaSO
412H
2O), SO is being arranged
=
4, Cl
-, HCO
-
3The eroding water effect under, the original water mudrock structure that forms changed various double salt again into, and water mudrock structure is destroyed." sea water resistance cement and sea water resistance mortar thereof and the concrete manufacture method " of the clear 63-107852 of Japan's special permission communique (A) adopts fine silica powder and aluminum phosphate to add material, and this method also can consume portion C a(OH when being used for the hydrated cementitious sclerosis)
2But do not design exciting and the expansion component effect of calcium sulfate, analyze theoretically, cement stone can't be very fine and close, also still have unsettled drated calcium aluminate, the low sulfur type calcium sulphoaluminate changes the destruction that high-sulfur type calcium sulphoaluminate etc. causes water mudrock structure once more into.
The present invention is directed to the problems referred to above, propose a kind of erosion resistant material.This erosion resistant material is by 30～95% siliceous material, comprise that dioxide-containing silica is greater than 35% artificial (improving active through 600～1600 ℃ of calcinings) and natural phosphorus slag, silicon ash, boiling furnace slag, agalmatolite, kaolin, diatomite, zeolite, shale, tuff, various siliceous materials can be single, also more than one mixture, but total amount is still 30～95%; 5～65% gypsum comprises SO
3Content is greater than 34% anhydrite, dihydrate gypsum, industry by-product gypsum or through 500～900 ℃ of incinerating gypsum, various gypsum can be single, also more than one mixed gypsum; Alunite less than 50% comprises SO
3Content is greater than 14% natural alumstone or through 500～900 ℃ of incinerating alunites; Admixture less than 30% is formed by containing muriatic UNF, LH etc.According to the requirement of working conditions (as the concentration of corrosive substance and the rate of expansion of requirement etc.), in above-mentioned given scope, adjust, through the metering of general equipment, respectively or mix send in the ball mill grinding to specific surface area greater than 3000cm
2/ g, 0.080 millimeter square hole sieve of fineness tails over less than 12% the erosion resistant material of making.When silicate series cement mortar and concrete mixing, by cement weight than the erosion resistant material that mixes less than 50%, can prepare anti-erosion mortar or concrete, also can in the silicate series cement, mix erosion resistant material (weight ratio) less than 50%, adopt spiral mixer and ball mill thereof to mix, make anti-erosion cement.
Erosion resistant material of the present invention is a kind of based on active silica and calcium sulfate excitation material, promotes the anti-erosion matrix material of silicate series cement hydration and hardening.Owing to separate out Ca(OH during silicate series cement aquation)
2With the generation drated calcium aluminate, when adding a certain amount of erosion resistant material, the unstable aquatic products thing that exists in the time of can consuming the hydrated cementitious sclerosis.As SiO
2And CaSO
4(calcium sulfate) consumes Ca(OH)
2Process briefly be described as following reaction:
High alkalinity aquation calcium aluminate and low sulfur type calcium sulphoaluminate and calcium sulfate effect:
These reaction product are different fully with the product role that the effect of environmental attack water generates.It is to be harmful to the stable product that the erosive material changes favourable hydrated calcium silicate, high-sulfur type calcium sulphoaluminate into, form the comparatively water mudrock structure of homogeneous in early days, avoided owing to material in the environmental attack water causes that deuterogenic double salt makes sand-cement slurry or concrete produce unbalanced stress distribution the destruction that the local stress of reduction cement stone causes.Simultaneously, hydrated cementitious forms high-sulfur type calcium sulphoaluminate and produces expansion with the compensating concrete early-age shrinkage, prevents the crack that tensile stress produces, and forms the high compact structure, prevent cement stone surface irregularity, pitted skin and the porous phenomenon that leaching caused of remaining calcium hydroxide, stoped Cl
-, SO
=
4Erosion, played the effect that prevents steel bar corrosion, prolong concrete work-ing life.
Erosion resistant material of the present invention has following advantage:
1. the prices of raw and semifnished materials of producing this erosion resistant material are cheap, aboundresources, and less investment, cost is low.
2. this erosion resistant material is nontoxic, and is easy to use, only needs to add a certain amount of erosion resistant material when silicate series cement mortar or concrete mixing, and constructional method just can obtain high anti-erosion, the weather resistance mortar or the concrete of microdilatancy, high compact usually.
Erosion resistant material of the present invention, sand-cement slurry and concrete anti-erosion, intensity, anti-permeability performance and the endurance quality of mixing 17～30% erosion resistant materials obviously improve, and illustrate as following embodiment:
1. the proportioning table 1 of erosion resistant material
| Numbering | Raw material ratio |
| A | Diatomite: anhydrite: alunite=65:17.5:17.5 |
| B | Diatomite: anhydrite: alunite: LH=63:17:17:3 |
| C | Agalmatolite: anhydrite: alunite: UNF=63:17:17:3 |
| D | Agalmatolite: anhydrite=71:29 |
| E | Diatomite: phosphogypsum=70:30 |
Annotate: the erosion resistant material numbering is all corresponding with table 1 in following each table.
The test of the anti-erosion of cement is by GB749-65 and GB2420-80(rapid method) method carries out 2 seawater (being 2 times of sea brines): Cl
-40580mg/l, SO
=
45540mg/l, HCO
-
3240mg/l, Mg
++2380mg/l, Na
+23600mg/l.
2. mix the cement erosion-resisting characteristics table 2 of erosion resistant material
| Sequence number | Cement | Erosion resistant material | 6 months anti-erosion coefficients (K) | Rapid method (K) | ||||
| Title | Volume (%) | Numbering | Volume (%) | 2 seawater | 5％ Na 2SO 4 | 10％ Na 2SO 4 | ||
| 1 | Silicate cement | 83 | E | 17 | 1.03 | 1.12 | 1.10 | 1.17 |
| 2 | Silicate cement | 83 | A | 17 | 1.04 | 1.13 | 1.16 | 1.19 |
| 3 | Silicate cement | 83 | B | 17 | 1.08 | 1.31 | 1.31 | 1.04 |
| 4 | Silicate cement | 100 | / | / | 0.76 | 0.84 | 0.55 | 0.95 |
| 5 | Portland cement | 100 | / | / | 0.84 | 0.88 | 0.70 | 0.96 |
| 6 | Sulfate resisting Portland cement | 100 | / | / | 0.85 | 1.01 | / | / |
3. mix the strength of cement mortar table 3 of erosion resistant material
| Sequence number | Cement | Erosion resistant material | Resistance to compression (MPa) | Anti-folding (MPa) | ||||||
| Title | Volume (%) | Numbering | Volume (%) | 3 days | 7 days | 28 days | 3 days | 7 days | 28 days | |
| 1 2 3 | Silicate cement silicate cement silicate cement | 100 77 77 | ／ A B | ／ 23 23 | 27.9 30.4 35.1 | 42.8 42.2 44.7 | 53.3 58.3 63.8 | 5.7 6.1 6.7 | 7.0 7.4 7.9 | 7.9 9.1 9.4 |
| 4 5 6 | Portland cement Portland cement Portland cement | 100 77 77 | ／ C A | ／ 23 23 | 24.9 32.6 30.8 | 37.4 42.7 39.5 | 52.8 53.2 54.6 | 5.1 5.8 6.3 | 6.0 6.9 7.0 | 7.8 8.3 7.9 |
| 7 8 9 | Slag cement slag cement slag cement | 100 77 77 | ／ A C | ／ 23 23 | 15.9 22.8 22.7 | 26.0 33.3 32.8 | 45.6 55.0 56.9 | 3.7 5.0 4.7 | 5.2 6.8 6.1 | 7.7 9.2 8.2 |
Mixing the cement paste polar expansion of erosion resistant material tests by JC313-82 " the expansive cement rate of expansion method of inspection ".
4. cement paste water center line expansion character table 4
| Sequence number | Portland cement (%) | Erosion resistant material | Rate of expansion (%) | |||||
| Numbering | Volume (%) | 1 day | 3 days | 7 days | 14 days | 28 days | ||
| 1 2 | 77 79 | A D | 23 21 | 0.379 0.268 | 0.387 0.397 | 0.397 0.504 | 0.402 0.537 | 0.405 0.549 |
Cement mortar (1: 3) impermeability test is undertaken by JC311-82 " alunite expansive cement " method, 80 * 70 * 35 millimeters of examination body sizes.
5.1:3 the anti-ginseng of cement mortar performance table 5
| Sequence number | Silicate cement (%) | Erosion resistant material | Impermeabilisation (Kg-f/cm 2) | Permeated height (mm) | |||
| Numbering | Volume (%) | 3 days | 7 days | 3 days | 7 days | ||
| 1 2 | 81 100 | A ／ | 19 ／ | 19 12 | 24 24 | 21 infiltrations | 15.5 27.0 |
Mixing the cement concrete compression strength and the impermeability test of erosion resistant material is undertaken by " Standard for test methods of properties of ordinary concrete mixture " GBJ80-85 and GBJ81-85 method.
6. concrete strength and anti-permeability performance table 6
| Silicate cement (%) | Erosion resistant material | The concrete ester is than cement: water cement ratio: sand: stone | Resistance to compression (MPa) | Seepage water pressure (Kg-f/cm 2） | Permeated height (mm) | ||
| Numbering | Volume (%) | 7 days | 8 days | ||||
| 70 | A | 30 | 1：0.51：1.68：2.97 | 26.0 | 38.7 | 40 | 7.9 |
Claims (8)
1, a kind of sand-cement slurry or concrete erosion resistant material that is subjected to seawater and other eroding water that be applicable to.It is characterized in that by 30～95% siliceous material, 5～65% gypsum, the alunite less than 50%, the admixture less than 30%, through respectively or combined grinding make.
2, erosion resistant material as claimed in claim 1 is characterized in that: used siliceous material is a dioxide-containing silica greater than 35% artificial (improving active through 600～1600 ℃ of calcinings) and natural phosphorus slag, silicon ash, boiling furnace slag, agalmatolite, kaolin, diatomite, zeolite, shale, tuff.
3, erosion resistant material as claimed in claim 1 is characterized in that: used gypsum is SO
3Content is greater than 34% anhydrite, dihydrate gypsum, industry by-product gypsum or through 500～900 ℃ of incinerating gypsum.
4, erosion resistant material as claimed in claim 1 is characterized in that: used alunite is SO
3Content is greater than 14% natural alumstone or through 500～900 ℃ of incinerating alunites.
5, erosion resistant material as claimed in claim 1 is characterized in that: used admixture must not be and contained muriatic UNF, LH etc.
6, claim 1,2,3,5, described erosion resistant material is characterized in that: the each component of used siliceous material, gypsum, admixture can be single, also can be more than one mixture.
7, erosion resistant material as claimed in claim 1 is characterized in that: the specific surface area behind difference or combined grinding is greater than 3000cm
2/ g, fineness is that 0.080 millimeter square hole sieve tails over less than 12%.
8, erosion resistant material as claimed in claim 1 is characterized in that: add the erosion resistant material less than 50% in the silicate series cement, can prepare anti-erosion sand-cement slurry or concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91102743 CN1028088C (en) | 1991-05-04 | 1991-05-04 | Anti-erosion material of cement mortar or concrete and prodn. method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91102743 CN1028088C (en) | 1991-05-04 | 1991-05-04 | Anti-erosion material of cement mortar or concrete and prodn. method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1066433A true CN1066433A (en) | 1992-11-25 |
| CN1028088C CN1028088C (en) | 1995-04-05 |
Family
ID=4905742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91102743 Expired - Fee Related CN1028088C (en) | 1991-05-04 | 1991-05-04 | Anti-erosion material of cement mortar or concrete and prodn. method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1028088C (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102296967A (en) * | 2011-06-20 | 2011-12-28 | 中南大学 | Method for repairing sulphate attack disease of tunnel lining concrete structure |
| CN103539389A (en) * | 2012-07-16 | 2014-01-29 | 浙江海洋学院 | Preparation method of seawater mixing cemented soil |
| CN103641355A (en) * | 2013-12-10 | 2014-03-19 | 江苏博特新材料有限公司 | Concrete sulfate corrosion-resistant selective crystallization inhibitor and preparation method thereof |
| CN104478383A (en) * | 2014-11-20 | 2015-04-01 | 湖南有色环保建材有限公司 | Inorganic heat-insulating mortar and preparation method thereof |
| CN104556789A (en) * | 2014-12-27 | 2015-04-29 | 北京工业大学 | Doped triethanolamine reinforced concrete corrosion inhibitor |
| CN104961380A (en) * | 2015-07-08 | 2015-10-07 | 河海大学 | Concrete sulphate-attack-resisting corrosion remover as well as preparation method and application thereof |
| CN105000856A (en) * | 2015-07-21 | 2015-10-28 | 山东宏艺科技股份有限公司 | Cementing material for marine concrete |
| CN105602010A (en) * | 2015-12-28 | 2016-05-25 | 宁波卡利特新材料有限公司 | Method for preparing modified rubber strengthening agent for relieving die wear |
| CN106869522A (en) * | 2017-04-24 | 2017-06-20 | 无锡市华灿化工有限公司 | It is a kind of to the existing whole construction method for pouring reconstruction of floor slab |
| CN108569859A (en) * | 2018-06-01 | 2018-09-25 | 中建商品混凝土有限公司 | A kind of water proof anti-seepage concrete additive and preparation method thereof with self-repair function |
| CN108911625A (en) * | 2018-07-26 | 2018-11-30 | 上海石化安东混凝土有限公司 | Impervious anti-crack concrete |
| CN110526637A (en) * | 2019-09-25 | 2019-12-03 | 嘉华特种水泥股份有限公司 | A kind of ocean deepwater well cementation low-temperature high-early strength mortar architecture |
| CN110590212A (en) * | 2019-09-25 | 2019-12-20 | 嘉华特种水泥股份有限公司 | Admixture for oil well cement for low-temperature well cementation |
| CN110922973A (en) * | 2019-11-21 | 2020-03-27 | 哈尔滨工业大学 | Mixed mineral base grouting material for reinforcing coastal port foundation |
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-
1991
- 1991-05-04 CN CN 91102743 patent/CN1028088C/en not_active Expired - Fee Related
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|---|---|---|---|---|
| CN102296967B (en) * | 2011-06-20 | 2013-11-20 | 中南大学 | Method for repairing sulphate attack disease of tunnel lining concrete structure |
| CN102296967A (en) * | 2011-06-20 | 2011-12-28 | 中南大学 | Method for repairing sulphate attack disease of tunnel lining concrete structure |
| CN103539389A (en) * | 2012-07-16 | 2014-01-29 | 浙江海洋学院 | Preparation method of seawater mixing cemented soil |
| CN103539389B (en) * | 2012-07-16 | 2015-10-07 | 浙江海洋学院 | Seawater mixes the preparation method of pulp-water earth |
| CN103641355A (en) * | 2013-12-10 | 2014-03-19 | 江苏博特新材料有限公司 | Concrete sulfate corrosion-resistant selective crystallization inhibitor and preparation method thereof |
| CN103641355B (en) * | 2013-12-10 | 2015-06-10 | 江苏苏博特新材料股份有限公司 | Concrete sulfate corrosion-resistant selective crystallization inhibitor and preparation method thereof |
| CN104478383B (en) * | 2014-11-20 | 2017-01-25 | 湖南有色环保建材有限公司 | Inorganic heat-insulating mortar and preparation method thereof |
| CN104478383A (en) * | 2014-11-20 | 2015-04-01 | 湖南有色环保建材有限公司 | Inorganic heat-insulating mortar and preparation method thereof |
| CN104556789A (en) * | 2014-12-27 | 2015-04-29 | 北京工业大学 | Doped triethanolamine reinforced concrete corrosion inhibitor |
| CN104961380A (en) * | 2015-07-08 | 2015-10-07 | 河海大学 | Concrete sulphate-attack-resisting corrosion remover as well as preparation method and application thereof |
| CN105000856A (en) * | 2015-07-21 | 2015-10-28 | 山东宏艺科技股份有限公司 | Cementing material for marine concrete |
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| CN105602010A (en) * | 2015-12-28 | 2016-05-25 | 宁波卡利特新材料有限公司 | Method for preparing modified rubber strengthening agent for relieving die wear |
| CN106869522A (en) * | 2017-04-24 | 2017-06-20 | 无锡市华灿化工有限公司 | It is a kind of to the existing whole construction method for pouring reconstruction of floor slab |
| CN108569859A (en) * | 2018-06-01 | 2018-09-25 | 中建商品混凝土有限公司 | A kind of water proof anti-seepage concrete additive and preparation method thereof with self-repair function |
| CN108569859B (en) * | 2018-06-01 | 2021-02-09 | 中建商品混凝土有限公司 | Waterproof and impervious concrete additive with self-repairing function and preparation method thereof |
| CN108911625A (en) * | 2018-07-26 | 2018-11-30 | 上海石化安东混凝土有限公司 | Impervious anti-crack concrete |
| CN110526637A (en) * | 2019-09-25 | 2019-12-03 | 嘉华特种水泥股份有限公司 | A kind of ocean deepwater well cementation low-temperature high-early strength mortar architecture |
| CN110590212A (en) * | 2019-09-25 | 2019-12-20 | 嘉华特种水泥股份有限公司 | Admixture for oil well cement for low-temperature well cementation |
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| CN110922973A (en) * | 2019-11-21 | 2020-03-27 | 哈尔滨工业大学 | Mixed mineral base grouting material for reinforcing coastal port foundation |
| CN114455904A (en) * | 2022-01-10 | 2022-05-10 | 南京迈越材料科技有限公司 | Shrinkage compensation composite material based on modified alunite tailings and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1028088C (en) | 1995-04-05 |
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