CN102126842A - Concrete preservative - Google Patents
Concrete preservative Download PDFInfo
- Publication number
- CN102126842A CN102126842A CN2011100640875A CN201110064087A CN102126842A CN 102126842 A CN102126842 A CN 102126842A CN 2011100640875 A CN2011100640875 A CN 2011100640875A CN 201110064087 A CN201110064087 A CN 201110064087A CN 102126842 A CN102126842 A CN 102126842A
- Authority
- CN
- China
- Prior art keywords
- concrete
- agent
- percent
- preservative
- water reducer
- 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
Links
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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to a concrete admixture, in particular to a composite cement preservative which can enhance the salty ion erosion resistance, freezing-thawing cyclic damage resistance and penetration resistance of concrete. The concrete preservative disclosed by the invention comprises the following components in percentage by weight: 30.0-50.0 percent of mineral admixture, 30.0-50.0 percent of expanding agent, 5.0-10.0 percent of corrosion inhibitor, 0.001-0.005 percent of air entraining agent and 1.0-10.0 percent of water reducing agent. By adopting the concrete preservative disclosed by the invention, the compactness of concrete can be enhanced, the concentration of sulfate ions capable of invading concrete can be lowered, the pore diameters of capillary pores can be reduced and the precipitating speed of calcium hydroxide from set cement can be restrained, so that the structural durability of concrete is enhanced. The concrete preservative is suitable for reinforced concrete structures in unfavorable geological regions, such as coal measure strata containing sulfate and magnesium and chloride ions, sulfide ore strata, seashore saline fields, coastal harbors and the like, as well as marine waters.
Description
Technical field
The invention belongs to a kind of concrete admixture, be specifically related to improve effectively the composite concrete antiseptic agent of the anti-salt ion erosion of concrete, freeze-thaw-circulation destruction and anti-permeability performance.
Background technology
Contain a large amount of vitriol in coasting port, salt pan, saline soil area, underground water, seawater, septic organism and the trade effluent, sulfate ion infiltrates in the concrete and the hydrated product of cement reacts, generation has expansile corrosion product, produce internal stress at inside concrete, when its internal stress surpasses concrete tensile strength, just make concrete produce phenomenons such as ftractureing, peel off, thereby concrete is destroyed because of the forfeiture of intensity and adhesiveproperties, and do not reach the structure expected life.In above-mentioned erosion area, reinforced concrete structure durability has become the worldwide problem of paying close attention to.Traditional method adopts sulphate-resistant cement, perhaps strengthens concrete cover, improves strength grade of concrete, or mix a certain amount of mineral substance adulterant in concrete.Yet the sulphate-resistant cement supply is limited, and costs an arm and a leg.The what is more important sulphate-resistant cement corrodes regional reinforced concrete structure durability for the steel bar corrosion ability that prevents that villaumite from causing thereby have a strong impact on.Can delay concrete corrosion though strengthen concrete cover, improve cost.And the method for mixing the mineral substance adulterant, can improve the closely knit performance of hydrated cementitious, reduce salt corrosion stress, but when corrosive environment is moderate corrosion or deep-etching, only depend on this kind method can not obtain good anticorrosion ability, just must add sanitas again, be not only by improving concrete density and resist salt corrosion at salt corrosion, but play the effect that stops or delay vitriol and chlorine salt corrosion, thereby improve concrete durability from basic reaction mechanism.
Summary of the invention
The objective of the invention is: a kind of concrete antiseptic agent is provided, can stops or delay salt (vitriol, the chlorion etc.) corrosion in the concrete structure effectively, and can suitably improve concrete performance.Its technical scheme is as follows:
A kind of concrete antiseptic agent, form by following component and weight percent thereof:
Mineral admixture: 30.0%～50.0%,
Swelling agent: 30.0%～50.0%,
Rust inhibitor: 5.0%～10.0%,
Air entrapment agent: 0.01 ‰～0.05 ‰,
Water reducer: 1.0%～10.0%.
Sanitas of the present invention is become to be grouped into by mineral admixture, swelling agent, water reducer composition, resistance rust composition, bleed.Wherein:
1, mineral admixture and swelling agent
One or more and swelling agent by breeze, silicon ash, flyash are formed.Mix mineral admixture and swelling agent and can improve the closely knit performance of hydrated cementitious, reduce salt corrosion stress, reduction can be invaded the aperture of sulfate ion concentration in the concrete and refinement pore, suppress the speed that calcium hydroxide is separated out from cement stone, reach and delay gypsum and the generation of ettringite crystalline, play the effect that suppresses its expansion damage, and then play the speed that delays the concrete sulphate erosion damage.
2, water reducer
Consider and the consistency of other admixtures, preferably use the sulfonated lignin water reducer as the diminishing enhancement component.Also can be according to engineering reality, adopt naphthalenesulfonate formaldehyde condensation compound or sulfamate water reducer, aliphatic water reducing agent, polycarboxylate water-reducer.Water reducer can play the effect that disperses cement, improve workability, reduce water cement ratio, reduce the ratio of free water in the concrete, reduce the pore volume that stays owing to the excessive moisture evaporation, and the aperture attenuates, compact structure, the aquation resultant is evenly distributed simultaneously, reduces concrete contraction, improve density, gain in strength.
3, resistance rust composition
Resistance rust composition is preferably the compound use of Sodium hexametaphosphate 99 and Sodium Benzoate by cathode type reinforcing bar rust inhibitor and the compound use of anode shaped steel bar rust inhibitor.Composite type reinforced rust inhibitor can effectively suppress, delay the electrochemical process of reinforcement corrosion, the aggravation corrosion that causes because of volume is not enough in the time of can preventing to use the anode rust inhibitor separately, resistance rust effect in the time of improving single use negative electrode rust inhibitor again, reduce the erosion of chlorion, thereby reach the work-ing life that prolongs concrete structure reinforcing bar.
4, bleed composition
The bleed composition can preferably be used triterpenes saponin air entrapment agent or Sodium dodecylbenzene sulfonate or sodium lauryl sulphate.The bubble that air entrapment agent is introduced is tiny, even, stable, can not only improve concrete workability, reduce segregation, the bleeding of mixture, can also improve the pore structure in the concrete, slow down the infiltration of corrosive medium in concrete, make extraneous corrosive medium be difficult for invading inside concrete, simultaneously concrete strength is had no adverse effect.
By adding composite environment-friendly type concrete antiseptic agent of the present invention, the Concrete Construction serviceability can guaranteed, improve on the bases such as workability, cohesiveness, water-retentivity, can not only improve concrete density, and can reduce the concentration that can invade sulfate ion in the concrete and the aperture of refinement pore, suppress the speed that calcium hydroxide is separated out from cement stone.Reach and delay gypsum and the generation of ettringite crystalline, thereby suppress concrete expansion damage, and then delaying the speed of concrete sulphate erosion damage, this invention can effectively stop the crystalline fracture in the concrete, thereby improves concrete structure durability, in addition, this invention is nontoxic, pollution-free, and has effectively utilized industry byproduct, realize the utilization of waste material maximization, met the production trend of current energy-conserving and environment-protective.Coal measure strata, sulphide ores stratum, gypsum stratum, mud carbon-coating, area, salt marsh soil, salt lake, salt pan, strand, coasting port, the seawater that can be widely used in containing vitriol and magnesium, chlorion infiltrates the skeleton construction of unfavorable geology zone such as district and ocean basin.
Embodiment
The present invention is described in further detail below in conjunction with specific embodiment.
Embodiment 1: according to weight percent, the prescription of this sanitas is:
Breeze: 25.0%,
Flyash: 15.0%,
The silicon ash: 10.0%,
Swelling agent: 40.0%,
Composite type reinforced rust inhibitor: 5.0%,
Triterpenes saponin air entrapment agent: 0.03 ‰,
Sulfonated lignin water reducer: 4.997%.
This prescription is mainly used in and is subjected to the serious and lighter concrete of chlorine salt corrosion of sulphate attack, and as sulphide ores stratum, gypsum stratum etc., the sanitas volume is 4% of a gel material content.
Embodiment 2: according to weight percent, the prescription of this sanitas is:
Breeze: 15.0%,
Flyash: 10.0%,
The silicon ash: 20.0%,
Swelling agent: 40.0%,
Composite type reinforced rust inhibitor: 10.0%,
Triterpenes saponin air entrapment agent: 0.03 ‰,
Sulfonated lignin water reducer: 4.997%.
This prescription is mainly used in and is subjected to vitriol and the serious erosive concrete of villaumite simultaneously, as the coal measure strata, area, salt marsh soil, salt lake, salt pan, strand, coasting port, the seawater that contain vitriol and magnesium, chlorion infiltrate the skeleton construction of unfavorable geology zone such as district and ocean basin, and the sanitas volume is 4% of a gel material content.
According to the requirement of JC/T1011-2006 " concrete sulfuric-resisting salt corrodes sanitas ", sanitas of the present invention meets the index of this standard fully.Other carries out concrete anti-sulphates corrosive cyclic wetting and drying test and discovers that after 50 circulations, concrete sample weight loss is less than 5%, and loss of strength is less than 25%.
Claims (5)
1. concrete antiseptic agent, form by following component and weight percent thereof:
Mineral admixture: 30.0%～50.0%,
Swelling agent: 30.0%～50.0%,
Rust inhibitor: 5.0%～10.0%,
Air entrapment agent: 0.01 ‰～0.05 ‰,
Water reducer: 1.0%～10.0%.
2. concrete antiseptic agent as claimed in claim 1 is characterized in that: described mineral admixture is one or more of breeze, silicon ash, flyash.
3. concrete antiseptic agent as claimed in claim 1 is characterized in that: described rust inhibitor is Sodium hexametaphosphate 99 and Sodium Benzoate.
4. concrete antiseptic agent as claimed in claim 1 is characterized in that: described water reducer is any one in sulfonated lignin water reducer, naphthalenesulfonate formaldehyde condensation compound, sulfamate water reducer, aliphatic water reducing agent, the polycarboxylate water-reducer.
5. concrete antiseptic agent as claimed in claim 1 is characterized in that: described air entrapment agent is triterpenes saponin air entrapment agent or Sodium dodecylbenzene sulfonate or sodium lauryl sulphate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100640875A CN102126842A (en) | 2011-03-17 | 2011-03-17 | Concrete preservative |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100640875A CN102126842A (en) | 2011-03-17 | 2011-03-17 | Concrete preservative |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102126842A true CN102126842A (en) | 2011-07-20 |
Family
ID=44265165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100640875A Pending CN102126842A (en) | 2011-03-17 | 2011-03-17 | Concrete preservative |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102126842A (en) |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102731007A (en) * | 2012-06-15 | 2012-10-17 | 武汉三源特种建材有限责任公司 | Ultralow-dosage corrosion inhibitor and preparation method thereof |
| CN103334434A (en) * | 2013-07-10 | 2013-10-02 | 上海市基础工程集团有限公司 | Underground diaphragm wall construction method in red sandstone pebble bed |
| CN103910506A (en) * | 2012-12-28 | 2014-07-09 | 辽宁奥克化学股份有限公司 | Preservative used as concrete admixture |
| CN104030597A (en) * | 2014-05-23 | 2014-09-10 | 中国水电十一局有限公司混凝土外加剂厂 | Multifunctional dense anti-wear preservative and application thereof |
| CN104176964A (en) * | 2013-05-27 | 2014-12-03 | 陕西通宇新材料有限公司 | Concrete composite antiseptic |
| CN105130239A (en) * | 2015-07-08 | 2015-12-09 | 常州大学 | Concrete antiseptic |
| CN105776943A (en) * | 2016-02-29 | 2016-07-20 | 中国水利水电第十二工程局有限公司 | Water-reducing sulfate-corrosion preventing agent |
| CN105837079A (en) * | 2016-03-24 | 2016-08-10 | 广州市水电建设工程有限公司 | Concrete additive for hydraulic engineering |
| CN106277907A (en) * | 2016-08-12 | 2017-01-04 | 山东港湾建设集团有限公司 | The anti-corrosion admixture of Marine Engineering High-performance Concrete is produced based on sea water sea sand |
| CN106316254A (en) * | 2016-08-22 | 2017-01-11 | 中铁第勘察设计院集团有限公司 | Saline soil area concrete foundation anti-corrosion protective layer material and preparation method thereof |
| CN104310847B (en) * | 2014-10-14 | 2017-02-15 | 中国电建集团中南勘测设计研究院有限公司 | Retarding high sulfate-resistant cement stable slurry |
| CN106517932A (en) * | 2016-10-13 | 2017-03-22 | 浙江长兴恒基科技有限公司 | Anticorrosion and antirust reinforced concrete, and microcirculation construction production method thereof |
| CN108178545A (en) * | 2018-01-30 | 2018-06-19 | 河北建设勘察研究院有限公司 | A kind of concrete corrosion-prevention rust-resistance agent for bored concrete pile |
| CN108238765A (en) * | 2018-01-15 | 2018-07-03 | 国家电网公司直流建设分公司 | A kind of anti-corrosion saline-alkali tolerant concrete and preparation method thereof |
| CN108383448A (en) * | 2018-03-20 | 2018-08-10 | 广东水电二局股份有限公司 | For the concrete corrosion-prevention rust-resistance agent and its preparation of hydraulic engineering, application method |
| CN109704675A (en) * | 2019-01-17 | 2019-05-03 | 河北森焱混凝土有限公司 | Anti-corrosion and anti-rust concrete and application thereof |
| CN113816641A (en) * | 2021-09-23 | 2021-12-21 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Preparation and application of preservative for concrete strut of overhead contact system of electrified railway |
| CN114988815A (en) * | 2022-06-27 | 2022-09-02 | 宁夏赛马科进混凝土有限公司 | Sulfate-corrosion-resistant high-performance concrete and preparation method thereof |
| CN115259738A (en) * | 2022-08-08 | 2022-11-01 | 广西南宁市邦华建材有限公司 | Special composite marine concrete anti-corrosion preservative and preparation method thereof |
| CN115925314A (en) * | 2021-08-11 | 2023-04-07 | 新疆苏博特新材料有限公司 | Concrete antifreezing and rust-resisting additive and preparation method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101337787A (en) * | 2008-08-27 | 2009-01-07 | 南京派尼尔科技实业有限公司 | Concrete corrosion resistant additive for sea construction |
| CN101857392A (en) * | 2010-05-28 | 2010-10-13 | 浙江五龙化工股份有限公司 | Composite type reinforced concrete rust inhibitor |
-
2011
- 2011-03-17 CN CN2011100640875A patent/CN102126842A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101337787A (en) * | 2008-08-27 | 2009-01-07 | 南京派尼尔科技实业有限公司 | Concrete corrosion resistant additive for sea construction |
| CN101857392A (en) * | 2010-05-28 | 2010-10-13 | 浙江五龙化工股份有限公司 | Composite type reinforced concrete rust inhibitor |
Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102731007A (en) * | 2012-06-15 | 2012-10-17 | 武汉三源特种建材有限责任公司 | Ultralow-dosage corrosion inhibitor and preparation method thereof |
| CN103910506A (en) * | 2012-12-28 | 2014-07-09 | 辽宁奥克化学股份有限公司 | Preservative used as concrete admixture |
| CN103910506B (en) * | 2012-12-28 | 2015-08-26 | 辽宁奥克化学股份有限公司 | A kind of sanitas being used as concrete admixture |
| CN104176964A (en) * | 2013-05-27 | 2014-12-03 | 陕西通宇新材料有限公司 | Concrete composite antiseptic |
| CN103334434A (en) * | 2013-07-10 | 2013-10-02 | 上海市基础工程集团有限公司 | Underground diaphragm wall construction method in red sandstone pebble bed |
| CN104030597B (en) * | 2014-05-23 | 2016-08-17 | 中国水电十一局有限公司混凝土外加剂厂 | A kind of wear-resistant preservative of Multifunctional compact and application thereof |
| CN104030597A (en) * | 2014-05-23 | 2014-09-10 | 中国水电十一局有限公司混凝土外加剂厂 | Multifunctional dense anti-wear preservative and application thereof |
| CN104310847B (en) * | 2014-10-14 | 2017-02-15 | 中国电建集团中南勘测设计研究院有限公司 | Retarding high sulfate-resistant cement stable slurry |
| CN105130239A (en) * | 2015-07-08 | 2015-12-09 | 常州大学 | Concrete antiseptic |
| CN105776943A (en) * | 2016-02-29 | 2016-07-20 | 中国水利水电第十二工程局有限公司 | Water-reducing sulfate-corrosion preventing agent |
| CN105837079A (en) * | 2016-03-24 | 2016-08-10 | 广州市水电建设工程有限公司 | Concrete additive for hydraulic engineering |
| CN105837079B (en) * | 2016-03-24 | 2017-04-26 | 广州市水电建设工程有限公司 | Additive for sea sand concrete |
| CN106277907A (en) * | 2016-08-12 | 2017-01-04 | 山东港湾建设集团有限公司 | The anti-corrosion admixture of Marine Engineering High-performance Concrete is produced based on sea water sea sand |
| CN106277907B (en) * | 2016-08-12 | 2018-08-10 | 山东港湾建设集团有限公司 | The anti-corrosion admixture of Marine Engineering High-performance Concrete is produced based on seawater sea sand |
| CN106316254A (en) * | 2016-08-22 | 2017-01-11 | 中铁第勘察设计院集团有限公司 | Saline soil area concrete foundation anti-corrosion protective layer material and preparation method thereof |
| CN106316254B (en) * | 2016-08-22 | 2018-04-17 | 中铁第一勘察设计院集团有限公司 | A kind of saline soil area concrete foundation LP blades protective layer material and preparation method thereof |
| CN106517932A (en) * | 2016-10-13 | 2017-03-22 | 浙江长兴恒基科技有限公司 | Anticorrosion and antirust reinforced concrete, and microcirculation construction production method thereof |
| CN108238765A (en) * | 2018-01-15 | 2018-07-03 | 国家电网公司直流建设分公司 | A kind of anti-corrosion saline-alkali tolerant concrete and preparation method thereof |
| CN108178545A (en) * | 2018-01-30 | 2018-06-19 | 河北建设勘察研究院有限公司 | A kind of concrete corrosion-prevention rust-resistance agent for bored concrete pile |
| CN108383448A (en) * | 2018-03-20 | 2018-08-10 | 广东水电二局股份有限公司 | For the concrete corrosion-prevention rust-resistance agent and its preparation of hydraulic engineering, application method |
| CN109704675A (en) * | 2019-01-17 | 2019-05-03 | 河北森焱混凝土有限公司 | Anti-corrosion and anti-rust concrete and application thereof |
| CN109704675B (en) * | 2019-01-17 | 2022-02-25 | 深圳市利建混凝土有限公司 | Anti-corrosion and anti-rust concrete and application thereof |
| CN115925314A (en) * | 2021-08-11 | 2023-04-07 | 新疆苏博特新材料有限公司 | Concrete antifreezing and rust-resisting additive and preparation method and application thereof |
| CN113816641A (en) * | 2021-09-23 | 2021-12-21 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Preparation and application of preservative for concrete strut of overhead contact system of electrified railway |
| CN114988815A (en) * | 2022-06-27 | 2022-09-02 | 宁夏赛马科进混凝土有限公司 | Sulfate-corrosion-resistant high-performance concrete and preparation method thereof |
| CN115259738A (en) * | 2022-08-08 | 2022-11-01 | 广西南宁市邦华建材有限公司 | Special composite marine concrete anti-corrosion preservative and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102126842A (en) | Concrete preservative | |
| CN101462843B (en) | Marine concrete corrosion resistant additive and preparation thereof | |
| CN104478286B (en) | A kind of compound concrete anti-corrosive rust inhibitor | |
| CN102167537B (en) | Reinforced concrete antirust agent with sulfate corrosion resistant function | |
| Fattah et al. | Evaluation of sustainable concrete produced with desalinated reject brine | |
| Mangi et al. | A comprehensive review on effects of seawater on engineering properties of concrete | |
| CN104386966A (en) | High-performance corrosion-resistant dry-mixed waterproof mortar | |
| Ma et al. | A review on the deterioration of mechanical and durability performance of marine-concrete under the scouring action | |
| Gopalakrishnan et al. | The effects on durability and mechanical properties of multiple nano and micro additive OPC mortar exposed to combined chloride and sulfate attack | |
| WO2021082105A1 (en) | Maritime work aggregate | |
| Gupta et al. | A Review on the selection of the variant Water in Concreting | |
| CN102875053A (en) | Compound type powder waterproof agent and preparation method thereof | |
| Islam et al. | Strength behavior of concrete using slag with cement in sea water environment | |
| Niş et al. | Seawater resistance of alkali-activated concrete | |
| CN108101443A (en) | It is a kind of can Rapid-Repair crack permeable crystalline waterproofing material production method | |
| Dimri et al. | A review on strength of concrete in seawater | |
| Chen et al. | Corrosion resistance and compressive strength of cemented soil mixed with nano-silica in simulated seawater environment | |
| CN105218007A (en) | A kind of corrosion-resistant mortar and preparation method thereof | |
| Al-Swaidani et al. | Acid resistance, water permeability and chloride penetrability of concrete containing crushed basalt as aggregates | |
| Irwan et al. | An overview of bacterial concrete on concrete durability in aggressive environment | |
| Al-Gahtani et al. | Characteristics of the Arabian Gulf environment and its impact on concrete durability–an overview | |
| CN105837079A (en) | Concrete additive for hydraulic engineering | |
| CN106630861B (en) | Improvement and the solidification cement composition of mud rinse fill are blown suitable for Na+ ionic soils | |
| Aswin et al. | Consideration on Use of the Corn Plant Ash-Based Concrete related to the Salt and Acid Attack: A Review | |
| Eziefula et al. | Experimental investigation of behaviour of concrete mixed and cured with Nembe seawater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: Five Zhejiang province Deqing County town Longqiao 313201 Applicant after: Zhejiang Wulong New Materials Co., Ltd. Address before: 313201 Zhejiang city of Huzhou province Deqing County new town five Longqiao Applicant before: Zhejiang Wulong Chemical Co., Ltd. |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: ZHEJIANG WULONG CHEMICAL CO., LTD. TO: ZHEJIANG WULONG NEW MATERIAL CO., LTD. |
|
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110720 |