CN101497503A - Silicate impervious cement - Google Patents
Silicate impervious cement Download PDFInfo
- Publication number
- CN101497503A CN101497503A CNA2008100332355A CN200810033235A CN101497503A CN 101497503 A CN101497503 A CN 101497503A CN A2008100332355 A CNA2008100332355 A CN A2008100332355A CN 200810033235 A CN200810033235 A CN 200810033235A CN 101497503 A CN101497503 A CN 101497503A
- Authority
- CN
- China
- Prior art keywords
- cement
- seepage
- percent
- silicate
- concrete
- 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00293—Materials impermeable to liquids
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention discloses silicate seepage resisting cement, which is characterized by comprising the following components in proportion by weight: 35 to 50 percent of milled cement clinker, 10 to 20 percent of ground slag, 15 to 25 percent of fly ash, 5 to 10 percent of pulverized steel slag, and 1 to 10 percent of silicon powder. The universal physical and chemical performances of a product produced from the silicate seepage resisting cement can reach the national standard of common cement, the seepage resistance of the product is remarkably superior to the common cement, the seepage resistance grade of the prepared cement can reach more than P8, and the product can satisfy the requirements on rigid water resistance and interior finish engineering. Compared with the prior building rigid waterproof technique (the seepage resistance, an additive, and the like), the seepage resisting cement not only is superior to the prior preparing materials in performance, but also can bring the waterproof seepage resisting construction into standardized management so as to obtain a novel variety of cement which has the advantages of excellent performance, stable quality, reasonable price, and convenient management.
Description
Technical field:
The present invention relates to technical field of cement, specifically a kind of concrete silicate cement with impervious ability.
Background technology:
The impervious technology of concrete water-proof is the problem of puzzlement construction industry always.Along with China's rapid development of economy, the buildings waterproof problem causes concern more and more widely.
For the impervious problem of building waterproof, present main means are mixed swelling agent both at home and abroad.But can in the concrete process for preparation, produce the adaptability condition of poor, bring inconvenience for construction and Engineering Quality Control, also be unfavorable for saving cost other water reducers.
Under this environment, research and develop a kind of can conveniently the preparation and have the concrete cement of impervious ability and just have good prospect.
Summary of the invention:
The object of the present invention is to provide a kind of can conveniently the configuration to have the above concrete silicate cement of impervious grade of P8.
To achieve these goals, technical scheme of the present invention is: a kind of silicate impervious cement, it is characterized in that: the proportioning of described cement is, grinding fine cement grog 35%～50%, slag powders 10%～20%, flyash 15%～25%, steel-making slag powder 5%～10%, silica flour 1%～10%, their proportioning sum is 100%.
The present invention is by above batching, and the national production standard of ordinary Portland cement, the product general physical chemical property of producing reaches the national standard of Portland cement, and its anti-permeability performance significantly is better than Portland cement, the concrete impervious grade of its preparation reaches more than the P8, can satisfy the requirement of buildings rigid waterproofing or interior decoration engineering.Compare with buildings rigid waterproofing technology (the impervious admixture etc. that adds) in the past, this impervious, cement not only is better than its preparing materials in the past on performance, the regularization management of water proof anti-seepage can also being constructed, appointment by the series of standards file, obtain superior performance, steady quality, reasonable price, the cement new variety of being convenient to manage.
Embodiment:
Below the present invention is further illustrated and provide embodiment.
The present invention is a kind of silicate impervious cement, it is characterized in that, the proportioning of described cement is: grinding fine cement grog 35%～50%, slag powders 10%～20%, flyash 15%～25%, steel-making slag powder 5%～10%, silica flour 1%～10%:, their proportioning sum is 100%.
A kind of silicate impervious cement is characterized in that, the weight proportion of described cement is: grinding fine cement grog 35%～50%, slag powders 5%～20%, flyash 10%～25%, steel-making slag powder 5%～10%, terra alba 5%～10%, silica flour 1%～10%, their proportioning sum is 100%.Proportioning among the present invention is weight percentage, and wherein the grinding fine cement grog is a Portland clinker, and the technical indicator of this grinding fine cement grog meets every index of regulation among the JC/T 853, and levigate to 350m
2More than/the kg.
Slag powders should meet 28 days activity indexs of GB/T 18046 regulations greater than 95%, and specific surface area is greater than 400m
2/ kg.
Silica flour should meet 28 days activity indexs of GB/T 18736 regulations greater than 85%, and specific surface area is greater than 15000m
2/ kg.
Flyash should meet the requirement of the II level flyash of GB/T 1596 regulations.
Steel-making slag powder should meet the technical requirement of GB/T 20491.
Terra alba should meet the G class of GB/T 5483 regulation or category-A secondary above gypsum or anhydrite.
This silicate impervious cement is prepared burden by above ratio requirement and by existing ordinary Portland cement standard production.Suffered maximum water pressure was not (8/10+0.2=) 1MPa when seeping water appearred in 4 test specimens in one group of 6 test specimen when the P8 that mentions in goal of the invention and effect represented concrete impermeability test, and test method is according to GBJ 82-1985 " Standard for test methods of longterm performance and durability of ordinary concrete ".
Of the present invention one preferable proportioning is during enforcement, grinding fine cement grog 40%～50%, slag powders 12%～18%, flyash 15%～22%, steel-making slag powder 5%～8%, silica flour 3%～8%.Another preferable proportioning of the present invention is grinding fine cement grog 38%～50%, slag powders 10%～20%, flyash 13%～22%, steel-making slag powder 5%～7%, terra alba 5%～10%, silica flour 4%～9%.In the preparation of water-tight concrete, adulterant conduct component wherein, one of component that has necessitated.Mineral admixture is not only given the workability and the mechanical property of fresh concrete goodness, and what is more important significantly improves concrete anti-permeability performance.The core technology of preferably preparing impervious, cement of the proportioning of grinding fine cement grog particularly.
By mineral admixtures such as compound admixture slag, flyash and gypsum, give full play to the effect of different adulterants, reach synergistic effect, make the concrete compactness of preparation better, have anti-permeability performance more.Shop experiment and rig-site utilization have all obtained good effect.
Steel-making slag powder has certain swelling property, and contraction that can compensation water earth rubber sand reduces shrinkage crack; Ground slag powder has level and smooth and careful surface, and initial stage water demand ratio cement granules is few stirring, and therefore mixing slag in concrete has good mobility, improves concrete compactness, can also suppress the overplumping of steel-making slag powder; Flyash plays the effect of " lubricant " with the high-calcium fly ass best results in the concrete coagulation process.In cement, add the effect that proper amount of gypsum can play grinding aid, also adjustable simultaneously joint cement setting time.
This prescription is improved concrete impermeability mechanism carry out following analysis.
1, concrete system can be regarded as the particle packing system of continuous grading, and thick base-material gap is filled by thin base-material in the concrete, and the fine aggregate gap is filled by cement granules, and the cement granules gap then needs thinner particles filled.Mix different extra materials among the present invention, the grating through suitable makes gelling material reach continuous microstage and joins.Improve concrete density, reach the effect that improves anti-permeability performance.
2, concrete imperviously be to prevent that the microfracture in the concrete from producing, concrete crack is to certainly exist and inevitably, in case enlarge under the stress of distress in concrete in its use, its anti-permeability performance will descend, even causes loss of strength.Steel-making slag powder has certain expansion character, mixes steel-making slag powder and makes cement in hydration process part omitted microdilatancy, gets to the purpose of compensate for shrinkage, reduces the crack and produces.For fear of overplumping, mix an amount of slag as stablizer.
3, the influence of interfacial effect.Concrete is in the process of building, and the interface can form moisture film around the aggregate, has caused interfacial transition zone pore volume to increase Ca (OH)
2The rich long-pending and preferred orientation of crystal makes interfacial transition zone become weakest link in the concrete.Mix slag and flyash and can suppress Ca (OH)
2Crystal produces and is rich long-pending, improves this domain structure, improves the workability of concrete energy.
More than the comprehensive action of three aspects, make concrete have fine and close structure and good interface performance, when showing preferably mechanical property, improved concrete anti-permeability performance significantly.
Through evidence: the impervious, cement quality has that cost is low, anti-permeability performance good, the characteristics of easy construction.
Below provide specific embodiment
Embodiment 1
The weight proportion of silicate impervious cement is: levigated Portland clinker 45%, slag powders 10%, flyash 25%, steel-making slag powder 10%, silica flour 10%.
Embodiment 2
The weight proportion of this impervious, cement is: levigated Portland clinker 48%, slag powders 15%, flyash 22%, steel-making slag powder 8%, silica flour 7%.
Embodiment 3
The weight proportion of this impervious, cement is: levigated Portland clinker 47%, slag powders 18%, flyash 22%, steel-making slag powder 8%, silica flour 5%.
Embodiment 4
Grinding fine cement grog 50%, slag powders 17%, flyash 19%, steel-making slag powder 8%, silica flour 6%.
Embodiment 5
Grinding fine cement grog 43%, slag powders 18%, flyash 22%, steel-making slag powder 7%, terra alba 5%, silica flour 5%.
Embodiment 6
Grinding fine cement grog 46%, slag powders 16%, flyash 18%, steel-making slag powder 9%, terra alba 7%, silica flour 4%.
Embodiment 7
Grinding fine cement grog 39%, slag powders 20%, flyash 23%, steel-making slag powder 7%, terra alba 8%, silica flour 3%.
Embodiment 8
Grinding fine cement grog 42%, slag powders 19%, flyash 20%, steel-making slag powder 8%, terra alba 6%, silica flour 5%.
Claims (2)
1, a kind of silicate impervious cement is characterized in that the proportioning of described cement is: grinding fine cement grog 35%～50%, slag powders 10%～20%, flyash 15%～25%, steel-making slag powder 5%～10%, silica flour 1%～10%, their proportioning sum is 100%.
2, a kind of silicate impervious cement is characterized in that: the proportioning of described cement is: grinding fine cement grog 35%～50%, slag powders 5%～20%, flyash 10%～25%, steel-making slag powder 5%～10%, terra alba powder 5%～10%, silica flour 1%～10%, their proportioning sum is 100%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100332355A CN101497503A (en) | 2008-01-29 | 2008-01-29 | Silicate impervious cement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100332355A CN101497503A (en) | 2008-01-29 | 2008-01-29 | Silicate impervious cement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101497503A true CN101497503A (en) | 2009-08-05 |
Family
ID=40944802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100332355A Pending CN101497503A (en) | 2008-01-29 | 2008-01-29 | Silicate impervious cement |
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| CN (1) | CN101497503A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103360016A (en) * | 2013-06-27 | 2013-10-23 | 上海宇培特种建材有限公司 | Environment-friendly type inorganic insulating material and preparation method thereof |
| CN106396438A (en) * | 2016-08-30 | 2017-02-15 | 许勤峰 | Environment-friendly cement |
| CN109403546A (en) * | 2018-11-30 | 2019-03-01 | 上海宝钢工程咨询有限公司 | Special-shaped steel column concrete grouting construction method and concrete |
| CN112456945A (en) * | 2020-12-01 | 2021-03-09 | 肖水 | Preparation process for quick-drying cement |
| CN113636776A (en) * | 2020-04-27 | 2021-11-12 | 彭立坚 | Efficient corrosion-resistant freeze-thaw-resistant waterproof agent |
| CN115947551A (en) * | 2022-09-02 | 2023-04-11 | 海南昆仑集团有限公司 | Portland cement and preparation method thereof |
-
2008
- 2008-01-29 CN CNA2008100332355A patent/CN101497503A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103360016A (en) * | 2013-06-27 | 2013-10-23 | 上海宇培特种建材有限公司 | Environment-friendly type inorganic insulating material and preparation method thereof |
| CN106396438A (en) * | 2016-08-30 | 2017-02-15 | 许勤峰 | Environment-friendly cement |
| CN106396438B (en) * | 2016-08-30 | 2018-08-28 | 邯郸金隅太行水泥有限责任公司 | A kind of environment protecting cement |
| CN109403546A (en) * | 2018-11-30 | 2019-03-01 | 上海宝钢工程咨询有限公司 | Special-shaped steel column concrete grouting construction method and concrete |
| CN113636776A (en) * | 2020-04-27 | 2021-11-12 | 彭立坚 | Efficient corrosion-resistant freeze-thaw-resistant waterproof agent |
| CN112456945A (en) * | 2020-12-01 | 2021-03-09 | 肖水 | Preparation process for quick-drying cement |
| CN115947551A (en) * | 2022-09-02 | 2023-04-11 | 海南昆仑集团有限公司 | Portland cement and preparation method thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090805 |