Concrete Interface Treatment Agent ZY-2

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Concrete Interface Treatment Agent(ZY-2)

ZY-2 concrete interface treatment agent, a kind of cement mortar adhesion intensifier, is of a double component emulsion using the water-emulsion epoxy resin as its basic material, with outstanding adhesive ability with many basic materials such as smooth concrete, veneering bricks and slabs, metals, lumbers and plastics, as well as excellent water resistance, moisture and heat resistance, anti-freezing/thawing and aging performances. It can be used in the construction of moist base course without toxic pollution. In addition, the application processing technology results in simple construction and significantly saved consumption, so such agent has been used widely in building decoration, reconstruction of old buildings, and moisture proof and waterproof fields, etc.

1. Plastering on smooth base course:
Instead of such procedures as the degreasing with soda washing and the manual roughing for the smooth concrete surface, the direct plastering followed by coating with ZY-2 can improve over 10 times the adhesive ability of the mortar and concrete base course. As a result, the mortar hollow problem existing in the building engineering is solved. Such product can also be used at any location such as wall surface, floor, ceiling, beams or columns.
ZY-2 can also be applied on the smooth base course surfaces such as metals, plastics and lumbers, (for example, steel structure, PVC board, xylolite slab and TK, etc.,) in order to make plastering course or thick fireproof and decoration coats on them.
2. Connection between new and old concretes:
ZY-2 can be used in connection between new and old concretes for concrete construction joint, reinforcement of beams and columns, and reconstruction of the old foundation. The shear strength of new and old concrete interfaces after treatment is increased by above 3 times.
3. Brick and board adhesion of such material as face bricks, glass mosaics and small marbles:
Coating ZY-2 on the back of bricks and slabs and using cement mortar for the leveling course is the most economic adhesion technology, which has a adhesion ability of about 4 times higher.
4. Processing of oil pollution base course:
ZY-2 has good immersion and emulsification functions. The plastering after its direct application is available for the base course with less greasy dirt, and ZY-2 should be used after cleaning up of the course with large number of greasy dirt.
5. Waterproof and moistureproof paints: refer to-Waterproof Method.

ZY-2 Adhesion Enhancement Performance
Table 1

Adhesive strength (MPa)

Concrete cement mortar

Normal temperature d30


Processed with   MNC-302

Processed by roughing

0.044 - 0.070



After freezing and thawing (75 cycles under -15 degree C -normal temperature)




Artificial aging (equivalent to 20 years)


No change


Face brick - cement mortar

Normal temperature d30




Glass mosaic - cement mortar

Normal temperature d30



1.  /

Marble - cement mortar

Normal temperature d30




Mortar - immerse in machine oil

Wiping out with alkali water



Cement after 7 days immerse in machine oil

Wiping out machine oil with cloth


Concrete - cement mortar

Normal temperature d30

Shear strength (MPa)




New concrete-old concrete

Normal temperature d30




1) The adhesion area S=50m2 for the test sample of adhesive strength and S=110m2 for that of shear strength;
2) The data marked with * is the figure available after roughing and coating with YJ-302, with the concrete damaged partially and integrated interface.

Preparation method
1. Proportion ratio


Component A

Component B

Quartz powder or cement





1)  Either the weight ratio or the volume ratio can be adopted;
2) The general plastering may not be extended with fillings, and the quartz powder or cement can be extended for connection between new and old concretes; extending the cement results in high strength but fast drying, and attentions should be paid to that the construction should be carried out under the wet condition obeyed.

2. Preparation method
The components A and B are mixed evenly respectively, and then poured them into a vessel at a proportion and mixed evenly. Finally, they are extended with certain fillings and mixed to be mushy for use. The processing agent mixture should not be too much in each preparation and should be prepared on the basis of consumption as required. The prepared processing agent has a valid service life, i.e., 2 hours in summer and about 3 hours in winter.

1. Plastering on base course:
The loose part of concrete base course will be weeded, and then bosomed or washed off surface floating dust. The moist concrete base course or existence of demoulding agent from the templet is permitted, but seeper or massive greasy dirt is forbidden.
The prepared processing agent is brushed on the base course surface evenly, (including various base courses such as new and old concretes, cement asbestos board, xylolite slab and plaster board) and then applied with cement mortar immediately when the agent is not dry. If the processing agent is fast to dry after applied in summer, it can be applied manually after the base course is wet with water.

2. Paving of face bricks:
The veneering bricks and boards such as the face brick are not required immersing in water, and only wiping off the floating dust on their surface.
The face brick to be stuck will be brushed with processing agent once on its back, and then applied with cement mortar immediately for paving. It is permitted to brush only 4/5 middle part of the face brick, with its edge not to be applied with the agent. During paving construction of the face bricks, in addition to the ZY-2 grout to be brushed, the wall surface with binding plaster should be stuck immediately so as to lie mosaics into in the plaster, which will be compacted and leveled; papers can be thrown about 2 minutes after mosaics are stuck, followed by joint correction, adjustment and joint cleaning.
Paving of the mosaics, in fact, is only an additional procedure to brush the processing agent on the basis of the traditional method.

3. Connection between new and old concretes:
Its basic procedures are same as those of the base course plastering. When the concrete cannot be poured under the wet condition immediately after ZY-2 is brushed due to template and reinforcement barriers, such method can be used instead of the roughing, namely before the template is set up, brushing ZY-2 (extended with cement) in advance, on which sands are spread so as to make the concrete surface rough.

4. Curing
The construction and curing temperature should be above 0 degree C, preferred to above 5 degree C. The curing system is same as that of the cement mortar or the concrete.
During construction in winter, the anti-freezing processing agent should be selected and be used under -5 degree C

5. Dosage and price:
Gel consumption: 200-250g/m2 (4-5m2/Kg)

6. Storage
The components A and B should not be mixed during storage, with the storage temperature not lower than 5 ¡æ. The shelf life is a half year to one year. The component A can still be used after mixed evenly if water is found separated out of it.

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Q:What is good for the waterproofing layer of the outer wall of the basement?
polystyrene foam board (ordinary or extruded board), construction attention to the backfill to be tamped, strictly prohibited the impact of rock damage to the foam board cement mortar protective layer, waterproof material is difficult to mortar surface, the lower the height can be used other such as wood, polyethylene foam membrane can also be used There are polystyrene board and masonry protection wall practice, masonry protection wall and waterproof layer between the use of Gongshi grams of grams of long-term Hinffe squeeze-type insulation polystyrene board, play anti-condensation and waterproof waterproof double effect
Q:What is the relationship between insulation mortar and insulation paste? Is it the same kind of material?
Insulation mortar generally refers to the cement, sand + other additives products for the insulation board bonding or wiping, especially the adhesive mortar or plaster (crack) mortar; insulation slurry generally refers to the product containing the insulation layer, the Products directly with the water on the wall can be stirred on the insulation effect, especially the polystyrene insulation paste or inorganic insulation slurry. Insulation mortar is a variety of lightweight materials for the aggregate, cement as cement, mixed with some modified additives, mixed by the production enterprises made of a mix of dry mortar. Mainly used for building exterior insulation, with the construction of convenient, good durability and so on. There are two kinds of insulation mortar on the market: . inorganic insulation mortar (vitrified microbead fire insulation mortar, composite aluminum silicate insulation mortar, perlite insulation mortar), . organic insulation mortar (powder polystyrene insulation mortar ).
Q:What is the proportion of the various materials in the C25 concrete
About 1625 kg; sand: 566kg; stone: 1261kg with the ratio of: 0.44: . the amount of cement, : 1.42: 3.17 you say no, 1 side of the concrete which used 2.5t cement, should be the total weight of about 1 square concrete is about 2.4t or so, the proportion is above I said, according to each party for 2400KG concrete preparation.
Q:Bags of dry powder polymer cracking mortar a cubic of the number of kilograms
EVB insulation particles is an inorganic vitreous mineral material, is the highest quality volcanic rocks (pine rock ore) after multi-stage silicon carbide heating tube expansion of the production of glass furnace technology from processing, was irregular spherical particles , The internal porous cavity structure, the surface of the glass closed, shiny smooth, physical and chemical properties and stability, with light, adiabatic, fire, high and low temperature resistance, anti-aging, water absorption and other excellent features, is a high-performance environmentally friendly new inorganic Light insulation material
Q:According to the different parts of the building, how to choose mortar mortar?
Plaster mortar is often divided into two or three layers for construction: the role of the bottom mortar is to mortar and the base can be firmly bonded, should have a good water retention
Q:I would like to check, I would like to ask C25, C20 with more than how to check, there are mortar M5 cement, mixed mortar how to check, the need for any material.
Concrete with the ratio of the required materials are cement, sand, gravel, the amount of words can be consulted before the inspection unit is the most secure, generally need to be half sacks such as; and these materials also need to pass the test, need to fill in the inspection Of the information there are slump, structural parts, and design strength, the other is no special place, mainly according to the requirements of the drawings; specific consult the detection unit
Q:When using cement mortar, why is its bearing capacity lower than the same strength grade mixed mortar masonry masonry?
Mixed mortar due to the addition of lime paste to improve the workability of the mortar, the operation is more convenient, is conducive to masonry and work efficiency improvement During the construction process more than the use of mortar instead of gray mortar cement mortar, so mixed mortar can also be called to add mortar king of cement mortar However, with the increase in engineering experience, in the actual work found that the use of mortar Wang mixed mortar although the cost savings, but the masonry strength of the situation found that, especially for some brick and concrete structure, affecting the broad masses of the people The safety of life All around the introduction of the relevant local requirements, in general construction is strictly prohibited But the advantages of mortar king is obvious, so a lot of material workers, but also tireless efforts to this research Effect mortar king, can be 1 to 1000 instead of lime A ton of this product can replace a thousand tons of lime Mixing each bag of cement mixed mortar only need to put this product 50 grams (accounting for one thousandth of the amount of cement) For the construction unit to save a lot of construction funds, this product is mainly used for construction works in the masonry and plastering construction The product has to improve the workability of mortar, improve strength Impermeable to cancel the lime or lime paste, reduce construction costs, improve the working environment and so on And environmental protection, is a new green building materials So you can see the mortar king because of green, will gradually replace the mixed with white ash mortar
Q:Are those materials in the construction project required to be tested?
As long as you are on the use of materials on the site need to do experiments, such as concrete, sand, stone, cement should be sent to the laboratory to do experiments, the laboratory will be out of concrete mix, if you need to use steel bars, Room to do the experiment, after the completion of the information inside to pay the experimental data, if not the experimental data convulsions Emperor Chi Gao gambling astronomical performance, the Audit Bureau will not recognize.
Q:Wall plastering works: why gypsum ash should not be wiped in the cement mortar layer
Cement mortar in the wet weather, the water coagulation on the surface, lime paste water condensation in the inside, the two easy to delamination, so lime paste under the grass, are used cement lime mortar The shrinkage of the material is different Lime mortar Suxian light liver scalled Fei Gui ten ginger water, will affect the strength of cement mortar Lime is not fully hydrated lime will be the top cracked plaster Lime mortar for a long time there is the possibility of precipitation of calcium carbonate This will be layered
Q:Polystyrene insulation mortar insulation in the external walls. Foreground will be how,
Polystyrene particles insulation mortar market prospects, not very optimistic. The reasons are: 1 now the state of the external wall insulation materials, the level of fire requirements are getting higher, and polystyrene particles fire level can only reach B1 level. 2 glass beads and the appearance of active inorganic mortar will greatly reduce the market share of polystyrene particles, vitrified microbeads and non-polar sand scrambled jar waste Intuit Biao Shizha lotus pulp are A-class fire and easy construction The

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