CN106316254B - A kind of saline soil area concrete foundation LP blades protective layer material and preparation method thereof - Google Patents
A kind of saline soil area concrete foundation LP blades protective layer material and preparation method thereof Download PDFInfo
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- CN106316254B CN106316254B CN201610702971.XA CN201610702971A CN106316254B CN 106316254 B CN106316254 B CN 106316254B CN 201610702971 A CN201610702971 A CN 201610702971A CN 106316254 B CN106316254 B CN 106316254B
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- 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
-
- 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
- C04B2111/20—Resistance against chemical, physical or biological attack
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
- C04B2201/52—High compression strength concretes, i.e. with a compression strength higher than about 55 N/mm2, e.g. reactive powder concrete [RPC]
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of saline soil area concrete foundation LP blades protective layer material, by mass percentage including following components：Cement matrix 20 40%, fine aggregate 20 50%, flyash 3 25%, swelling agent 3 15%, water-reducing agent 0.5 2.5%, configures water 5 16%；The sum of mass percent of above component is 100%；Then above component is sufficiently stirred, obtains concrete foundation LP blades protective layer material after mixing.For protecting the concrete foundation of saline soil area underground, which has the characteristics that construction is simple, adaptability is good and low engineering cost.
Description
Technical field
The invention belongs to concrete material technical field, is related to a kind of saline soil area concrete foundation LP blades protective layer
Material, the invention further relates to a kind of preparation method of saline soil area concrete foundation LP blades protective layer material.
Background technology
With the fast development of China's economy, the utilization of China's underground space enter Rapid development stage, therefore
Need to carry out and build substantial amounts of concrete foundation.It is main to concentrate in integrated distribution form and China's salinized soil distribution is extensive
In strand and Northwest inland area.Concrete reinforcement structure is current all kinds of buildings, the material of main part of structures, salt marsh soil
Area subsurface brine environment (especially Cl-Or) very serious corrosion failure can be caused to reinforced concrete foundation, seriously
The security and service life of concrete foundation are have impact on, causes great economic loss.
In the prior art, above ground structure by periodically brushing various anticorrosion materials still to reach anti-corrosion purpose.
But for concrete foundation anti-corrosion there are many difficulties, it is primarily due to concrete foundation and is directly connect with subsurface brine
Touch, can not be by brushing various anticorrosive coatings.An effective corrosion protective layer is formed in the periphery of concrete foundation, is come
It is a kind of common anti-corrosion protection means to obstruct corrosion of the corrosive medium to concrete foundation.But existing construction technology,
Such as using means such as geotextiles, additional water pipe precautions, there are difficulty of construction is big, the cycle is long, bad adaptability and project cost
The problem of high.Although in the concrete protective of resistant to sea water concrete erosion, corrosion inhibitor, micro- is often added when prepared by concrete
Swelling agent, air entraining agent, water-reducing agent etc. play the role of preventing sea water intrusion.But because of different types of additive, there are phase
Capacitive problem, may cause workability of concrete to deteriorate；The addition metering of a variety of additives is complicated, operates uppity lack
Fall into, it is with high costs the problems such as, this technological means is difficult to apply to the anti-of the concrete foundation of saline soil area concrete foundation
Among bittern protection.
The content of the invention
It is an object of the invention to provide a kind of saline soil area concrete foundation LP blades protective layer material, for protecting
The concrete foundation of saline soil area underground, which has construction is simple, the adaptability good and low engineering cost
Feature.
It is a further object of the present invention to provide the system of above-mentioned saline soil area concrete foundation LP blades protective layer material
Preparation Method.
The purpose of the present invention is what is be achieved through the following technical solutions：
This saline soil area concrete foundation LP blades protective layer material, by mass percentage including following components：Water
Mud base material 20-40%, fine aggregate 20-50%, flyash 3-25%, swelling agent 3-15%, water-reducing agent 0.5-2.5%, surplus are
Configure water；The sum of mass percent of above component is 100%.
Further, also resided in the characteristics of the technical program：
Wherein cement matrix is 33.7%, fine aggregate 45%, flyash 3.75%, swelling agent 3.75%, diminishing
Agent is 0.53%, and surplus is configuration water.
Wherein the modulus of fineness of fine aggregate is less than 2.5.
Wherein swelling agent is UEA-SM type special efficient cement expansive materials.
Wherein water-reducing agent is high-efficiency water-reducing agent of poly-carboxylic acid, and the solid content of water-reducing agent is not less than 20%.
The present invention another technical solution be：A kind of preparation of saline soil area concrete foundation LP blades protective layer material
Method, comprises the following steps：Step 1, following components is taken by mass percentage：Cement matrix 20-40%, fine aggregate 20-50%,
Flyash 3-25%, swelling agent 3-15%, water-reducing agent 0.5-2.5%, surplus are configuration water；The mass percent of above component it
With for 100%；Step 2, protective layer material is obtained after all components obtained in step 1 are uniformly mixed.
Further, also resided in the characteristics of the technical program：
Wherein in step 1, cement matrix 33.7%, fine aggregate 45%, flyash 3.75%, swelling agent is
3.75%, water-reducing agent 0.53%, surplus is configuration water.
The modulus of fineness of fine aggregate is less than 2.5 wherein in step 1；Swelling agent is UEA-SM type special efficient concrete expansions
Agent；Water-reducing agent is high-efficiency water-reducing agent of poly-carboxylic acid, and the solid content of water-reducing agent is not less than 20%.
The internal structure of the protective layer material wherein obtained in step 2 is crystalline network structures.
The protective layer material wherein obtained in step 2 is applied on the top layer of base concrete, protects basic concrete structure
Body.
The invention has the advantages that concrete foundation LP blades protective layer material in saline soil area provided by the invention,
Required after adding water uniform mixing pourable mobility, microdilatancy, it is high early stage and later strength, the not property such as bleeding
Energy；So as to be used for that the buried concrete basis of saline soil area is protected, and the protective layer material has preparation and applies
Work is simple, and adaptability is good and the characteristics of low cost.
Further, UEA-SM types special efficient cement expansive material can promote cement slurry to be internally formed calcium alum
Stone, the grouting material made have early strong, high-strength, microdilatancy effect.
Further, high-efficiency water-reducing agent of poly-carboxylic acid, it is possible to increase structure grouting rate, and have to each age strength of grouting material
Certain raising, while have certain deferred action to cement, grouting material fluidity is big and flow losses are small.
Further, flyash can make the aquatic products CaOH that stability is poor in cement slurry be changed into aquation silicic acid
The quantity increase of calcium gel；As the Ca (OH) in cement slurry2When content reduces, small crystal grain is easily formed, with water
Change gel of calcium silicate, which is interleaved with each other, is overlapped to form net structure crystal, so as to improve concrete inner structure；Filled in concrete
Flyash, has saved substantial amounts of cement matrix and fine aggregate；Reduce water consumption, improve the workability of concrete mix,
The pumpability of concrete is enhanced, reduces creeping for concrete, reduces the heat of hydration, thermal energy dilatancy, etc. comprehensive performance.
Further, flyash and fine aggregate have parcel, the adhesive attraction to coarse aggregate, can effectively improve cement
The viscosity coefficient of flyash stabilization gravel mixture, while floating type grading its grain diameter has very strong continuity again, therefore
Education resistance can preferably, so that grouting material intensity has certain growth, endurance quality further to be lifted.
Further, protective layer material forms corrosion protective layer, and fill concrete base on concrete foundation surface
Plinth top layer internal capillary gap, so that protective layer is formed between concrete foundation and subsurface brine, the letter of corrosion-resisting function mechanism
It is bright, reliable.
Embodiment
The present invention is described in further detail with reference to embodiment：
The present invention provides a kind of saline soil area concrete foundation LP blades protective layer material, include by mass percentage
Following components：Cement matrix 20-40%, fine aggregate 20-50%, flyash 3-25%, swelling agent 3-15%, water-reducing agent 0.5-
2.5%, surplus is configuration water；The sum of mass percent of above component is 100%；The modulus of fineness of wherein fine aggregate is less than
2.5；Swelling agent is UEA-SM type special efficient cement expansive materials；Water-reducing agent is high-efficiency water-reducing agent of poly-carboxylic acid, and water-reducing agent contains
Gu amount is not less than 20%, water-reducing rate is not less than 8%；It is common fresh water or bittern to configure water.
UEA-SM types special efficient cement expansive material used, meets national standard GB23439-2009《Cement expansive material》Rule
It is fixed.
Cement matrix used is Portland cement, meets national Specification GB175-2007 common portland cements
.
Flyash used is second class powered coal ash, meets national Specification GBJ146-90 PULVERIZED FUEL ASH CONCRETE TECHNICAL applications
Specification.
Present invention also offers the preparation method of above-mentioned saline soil area concrete foundation LP blades protective layer material, including
Following steps：
Step 1, following components is taken by mass percentage：Cement matrix 20-40%, fine aggregate 20-50%, flyash 3-
25%, swelling agent 3-15%, water-reducing agent 0.5-2.5%, surplus are configuration water；The sum of mass percent of above component is
100%；Wherein the modulus of fineness of fine aggregate is less than 2.5；Swelling agent is UEA-SM type special efficient cement expansive materials；Water-reducing agent
For high-efficiency water-reducing agent of poly-carboxylic acid, the solid content of water-reducing agent is not less than 20%, and water-reducing rate is not less than 8%；Configuration water is common fresh water
Or bittern.
Step 2, after all components obtained in step 1 are uniformly mixed saline soil area concrete foundation is obtained to prevent invading
Lose protective layer material；The internal structure of the protective layer material is crystalline network structures；The protective layer material is applied in coagulation soil matrix
Plinth top layer.
The present invention specific embodiment be：
Embodiment 1
A kind of saline soil area concrete foundation LP blades protective layer material and preparation method thereof, comprises the following steps：
Step 1, following components is taken by mass percentage：Cement matrix 33.8%, fine aggregate 45%, flyash 3.75%,
Swelling agent 3.75%, water-reducing agent 0.53%, surplus are configuration water；The sum of mass percent of above component is 100%；It is wherein thin
The modulus of fineness of aggregate is 2.5；Swelling agent is UEA-SM type special efficient cement expansive materials；Water-reducing agent efficiently subtracts for polycarboxylic acids
Aqua, the solid content of water-reducing agent is 20%, water-reducing rate 8%；It is common fresh water or bittern to configure water.
Step 2, concrete LP blades protective layer material is obtained after all components obtained in step 1 are uniformly mixed；
The internal structure of the protective layer material is crystalline network structures；The protective layer material is applied on concrete foundation top layer.
Embodiment 2
A kind of saline soil area concrete foundation LP blades protective layer material and preparation method thereof, comprises the following steps：
Step 1, following components is taken by mass percentage：Cement matrix 20%, fine aggregate 30%, flyash 5%, swelling agent
5%, water-reducing agent 0.5%, surplus is configuration water；The sum of mass percent of above component is 100%；The wherein fineness of fine aggregate
Modulus is 2.0；Swelling agent is UEA-SM type special efficient cement expansive materials；Water-reducing agent is high-efficiency water-reducing agent of poly-carboxylic acid, diminishing
The solid content of agent is 18%, water-reducing rate 10%；It is common fresh water or bittern to configure water.
Step 2, concrete LP blades protective layer material is obtained after all components obtained in step 1 are uniformly mixed；
The internal structure of the protective layer material is crystalline network structures；The protective layer material is applied on concrete foundation top layer.
Embodiment 3
A kind of saline soil area concrete foundation LP blades protective layer material and preparation method thereof, comprises the following steps：
Step 1, following components is taken by mass percentage：Cement matrix 30%, fine aggregate 50%, flyash 3%, swelling agent
10%, water-reducing agent 2%, surplus is configuration water；The sum of mass percent of above component is 100%；The wherein fineness of fine aggregate
Modulus is 1.8；Swelling agent is UEA-SM type special efficient cement expansive materials；Water-reducing agent is high-efficiency water-reducing agent of poly-carboxylic acid, diminishing
The solid content of agent is 20%, water-reducing rate 11%；It is common fresh water or bittern to configure water.
Step 2, concrete LP blades protective layer material is obtained after all components obtained in step 1 are uniformly mixed；
The internal structure of the protective layer material is crystalline network structures；The protective layer material is applied on concrete foundation top layer.
Embodiment 4
A kind of saline soil area concrete foundation LP blades protective layer material and preparation method thereof, comprises the following steps：
Step 1, following components is taken by mass percentage：Cement matrix 25%, fine aggregate 35%, flyash 20%, expansion
Agent 10%, water-reducing agent 2.5%, surplus are configuration water；The sum of mass percent of above component is 100%；Wherein fine aggregate
Modulus of fineness is 2.2；Swelling agent is UEA-SM type special efficient cement expansive materials；Water-reducing agent is high-efficiency water-reducing agent of poly-carboxylic acid,
The solid content of water-reducing agent is 17%, water-reducing rate 9%；It is common fresh water or bittern to configure water.
Step 2, concrete LP blades protective layer material is obtained after all components obtained in step 1 are uniformly mixed；
The internal structure of the protective layer material is crystalline network structures；The protective layer material is applied on concrete foundation top layer.
Embodiment 5
A kind of saline soil area concrete foundation LP blades protective layer material and preparation method thereof, comprises the following steps：
Step 1, following components is taken by mass percentage：Cement matrix 40%, fine aggregate 40%, flyash 3%, swelling agent
3%, water-reducing agent 1%, surplus is configuration water；The sum of mass percent of above component is 100%；The wherein fineness mould of fine aggregate
Number is 2.5；Swelling agent is UEA-SM type special efficient cement expansive materials；Water-reducing agent is high-efficiency water-reducing agent of poly-carboxylic acid, water-reducing agent
Solid content be 19%, water-reducing rate 10%；It is common fresh water or bittern to configure water.
Step 2, concrete LP blades protective layer material is obtained after all components obtained in step 1 are uniformly mixed；
The internal structure of the protective layer material is crystalline network structures；The protective layer material is applied on the top layer of concrete foundation.
Embodiment 6
A kind of saline soil area concrete foundation LP blades protective layer material and preparation method thereof, comprises the following steps：
Step 1, following components is taken by mass percentage：Cement matrix 35%, fine aggregate 45%, flyash 4%, swelling agent
4%, water-reducing agent 1.5%, surplus is configuration water；The sum of mass percent of above component is 100%；The wherein fineness of fine aggregate
Modulus is 2.2；Swelling agent is UEA-SM type special efficient cement expansive materials；Water-reducing agent is high-efficiency water-reducing agent of poly-carboxylic acid, diminishing
The solid content of agent is 20%, water-reducing rate 12%；It is common fresh water or bittern to configure water.
Step 2, concrete LP blades protective layer material is obtained after all components obtained in step 1 are uniformly mixed；
The internal structure of the protective layer material is crystalline network structures；The protective layer material is applied on the top layer of concrete foundation.
Embodiment 7
A kind of saline soil area concrete foundation LP blades protective layer material and preparation method thereof, comprises the following steps：
Step 1, following components is taken by mass percentage：Cement matrix 26%, fine aggregate 28%, flyash 25%, expansion
Agent 14%, water-reducing agent 1%, surplus are configuration water；The sum of mass percent of above component is 100%；Wherein fine aggregate is thin
It is 2.3 to spend modulus；Swelling agent is UEA-SM type special efficient cement expansive materials；Water-reducing agent is high-efficiency water-reducing agent of poly-carboxylic acid, is subtracted
The solid content of aqua is 17%, water-reducing rate 9%；It is common fresh water or bittern to configure water.
Step 2, concrete LP blades protective layer material is obtained after all components obtained in step 1 are uniformly mixed；
The internal structure of the protective layer material is crystalline network structures；The protective layer material is applied on concrete foundation top layer.
Embodiment 8
A kind of saline soil area concrete foundation LP blades protective layer material and preparation method thereof, comprises the following steps：
Step 1, following components is taken by mass percentage：Cement matrix 23%, fine aggregate 27%, flyash 20%, expansion
Agent 15%, water-reducing agent 2%, surplus are configuration water；The sum of mass percent of above component is 100%；Wherein fine aggregate is thin
It is 2.1 to spend modulus；Swelling agent is UEA-SM type special efficient cement expansive materials；Water-reducing agent is high-efficiency water-reducing agent of poly-carboxylic acid, is subtracted
The solid content of aqua is 20%, water-reducing rate 13%；It is common fresh water or bittern to configure water.
Step 2, concrete LP blades protective layer material is obtained after all components obtained in step 1 are uniformly mixed；
The internal structure of the protective layer material is crystalline network structures；The protective layer material is applied on concrete foundation top layer.
Embodiment 9
A kind of saline soil area concrete foundation LP blades protective layer material and preparation method thereof, comprises the following steps：
Step 1, following components is taken by mass percentage：Cement matrix 26%, fine aggregate 38%, flyash 15%, expansion
Agent 10%, water-reducing agent 0.5%, surplus are configuration water；The sum of mass percent of above component is 100%；Wherein fine aggregate
Modulus of fineness is 2.4；Swelling agent is UEA-SM type special efficient cement expansive materials；Water-reducing agent is high-efficiency water-reducing agent of poly-carboxylic acid,
The solid content of water-reducing agent is 18%, water-reducing rate 14%；It is common fresh water or bittern to configure water.
Step 2, concrete LP blades protective layer material is obtained after all components obtained in step 1 are uniformly mixed；
The internal structure of the protective layer material is crystalline network structures；The protective layer material is applied on concrete foundation top layer.
The present invention saline soil area concrete foundation LP blades protective layer material slump test according to《Cement mortar
Fluidity assay method》(GB/T2419-2005) specification is detected；Anti- bittern corrodes the anti-folding of strength cement-based grouting material, resistance to compression examination
Test with reference to GB/T17671-1999《Test method for strength of hydraulic cement mortar》It is detected；Anti- bittern corrodes strength cement-based grouting material and resists
Bittern erosion test is with reference to GB/T 50082-2009《Standard for test methods of longterm performance and durability of ordinary concrete standard》In
Sulfate attack experiment is detected.Testing result is as shown in the table：
Claims (10)
- A kind of 1. saline soil area concrete foundation LP blades protective layer material, it is characterised in that by mass percentage include with Lower component：Cement matrix 20-40%, fine aggregate 20-50%, flyash 4-25%, swelling agent 3-15%, water-reducing agent 0.5- 2.5%, surplus is configuration water；The sum of mass percent of above component is 100%；The protective layer material has placeability.
- 2. concrete foundation LP blades protective layer material in saline soil area according to claim 1, it is characterised in that described Cement matrix is 33.7%, fine aggregate 45%, flyash 3.75%, swelling agent 3.75%, and water-reducing agent 0.53% is remaining Measure to configure water.
- 3. the saline soil area concrete foundation LP blades protective layer material according to 1 or 2 any one of claim, it is special Sign is that the modulus of fineness of the fine aggregate is less than 2.5.
- 4. the saline soil area concrete foundation LP blades protective layer material according to 1 or 2 any one of claim, it is special Sign is that the swelling agent is UEA-SM type special efficient cement expansive materials.
- 5. the saline soil area concrete foundation LP blades protective layer material according to 1 or 2 any one of claim, it is special Sign is that the water-reducing agent is high-efficiency water-reducing agent of poly-carboxylic acid, and the solid content of water-reducing agent is not less than 20%.
- 6. a kind of preparation method of saline soil area concrete foundation LP blades protective layer material, it is characterised in that including following Step：Step 1, following components is taken by mass percentage：Cement matrix 20-40%, fine aggregate 20-50%, flyash 4-25%, Swelling agent 3-15%, water-reducing agent 0.5-2.5%, surplus are configuration water；The sum of mass percent of above component is 100%；Step 2, protective layer material is obtained after all components obtained in step 1 are uniformly mixed；Protective layer material has can Perfusion property.
- 7. the preparation method of concrete foundation LP blades protective layer material in saline soil area according to claim 6, it is special Sign is, in the step 1, cement matrix 33.7%, fine aggregate 45%, flyash 3.75%, swelling agent is 3.75%, water-reducing agent 0.53%, surplus is configuration water.
- 8. the preparation method of concrete foundation LP blades protective layer material in saline soil area according to claim 6, it is special Sign is that the modulus of fineness of fine aggregate is less than 2.5 in the step 1；Swelling agent is UEA-SM type special efficient concrete expansions Agent；Water-reducing agent is high-efficiency water-reducing agent of poly-carboxylic acid, and the solid content of water-reducing agent is not less than 20%.
- 9. the preparation method of concrete foundation LP blades protective layer material in saline soil area according to claim 6, it is special Sign is that the internal structure of the protective layer material obtained in the step 2 is crystalline network structures.
- 10. the preparation method of concrete foundation LP blades protective layer material in saline soil area according to claim 6, it is special Sign is that the protective layer material obtained in the step 2 is applied on the top layer of base concrete, protects basic concrete structure Body.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1792982A (en) * | 2005-11-25 | 2006-06-28 | 华南理工大学 | Silicate cement of precenting chlorate corrosion |
| CN101397202A (en) * | 2008-10-16 | 2009-04-01 | 中国建筑第六工程局有限公司 | Rubber aggregate grouting material |
| CN102126842A (en) * | 2011-03-17 | 2011-07-20 | 浙江五龙化工股份有限公司 | Concrete preservative |
| CN103553457A (en) * | 2013-10-16 | 2014-02-05 | 青岛磊鑫混凝土有限公司 | Salt corrosion resistant concrete |
| CN103964784A (en) * | 2014-05-07 | 2014-08-06 | 西安中交土木科技有限公司 | Cement mortar for repairing corrosion damage of concrete structure and preparation method of cement mortar |
-
2016
- 2016-08-22 CN CN201610702971.XA patent/CN106316254B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1792982A (en) * | 2005-11-25 | 2006-06-28 | 华南理工大学 | Silicate cement of precenting chlorate corrosion |
| CN101397202A (en) * | 2008-10-16 | 2009-04-01 | 中国建筑第六工程局有限公司 | Rubber aggregate grouting material |
| CN102126842A (en) * | 2011-03-17 | 2011-07-20 | 浙江五龙化工股份有限公司 | Concrete preservative |
| CN103553457A (en) * | 2013-10-16 | 2014-02-05 | 青岛磊鑫混凝土有限公司 | Salt corrosion resistant concrete |
| CN103964784A (en) * | 2014-05-07 | 2014-08-06 | 西安中交土木科技有限公司 | Cement mortar for repairing corrosion damage of concrete structure and preparation method of cement mortar |
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| CN106316254A (en) | 2017-01-11 |
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